Measurements of the b baryon lifetime

D. Buskulic; D. Casper; I. De Bonis; D. Decamp; P. Ghez; C. Goy; J. P. Lees; M. N. Minard; P. Odier; B. Pietrzyk; F. Ariztizabal; M. Chmeissani; J. M. Crespo; I. Efthymiopoulos; E. Fernandez; M. Fernandez-Bosman; V. Gaitan; L1 Garrido; M. Martinez; S. Orteu; A. Pacheco; C. Padilla; F. Palla; A. Pascual; J. A. Perlas; F. Sanchez; F. Teubert; A. Colaleo; D. Creanza; M. de Palma; A. Farilla; G. Gelao; M. Girone; G. Iaselli; G. Maggi; N. Marinelli; S. Natali; S. Nuzzo; A. Ranieri; G. Raso; F. Romano; F. Ruggieri; G. Selvaggi; L. Silvestris; P. Tempesta; G. Zito; X. Huang; J. Lin; Q. Ouyang; T. Wang; Y. Xie; R. Xu; S. Xue; J. Zhang; L. Zhang; W. Zhao; G. Bonvicini; D. Cassel; M. Cattaneo; P. Comas; P. Coyle; H. Drevermann; A. Engelhardt; R. W. Forty; M. Frank; R. Hagelberg; J. Harvey; R. Jacobsen; P. Janot; B. Jost; J. Knobloch; I. Lehraus; M. Maggi; C. Markou; E. B. Martin; P. Mato; H. Meinhard; A. Minten; R. Miquel; T. Oest; P. Palazzi; J. R. Pater; J. F. Pusztaszeri; F. Ranjard; P. Rensing; L. Rolandi; D. Schlatter; M. Schmelling; O. Schneider; W. Tejessy; I. R. Tomalin; A. Venturi; H. Wachsmuth; W. Wiedenmann; T. Wildish; W. Witzeling; J. Wotschack; Z. Ajaltouni; M. Bardadin-Otwinowska; A. Barres; C. Boyer; A. Falvard; P. Gay; C. Guicheney; P. Henrard; J. Jousset; B. Michel; S. Monteil; J. C. Montret; D. Pallin; P. Perret; F. Podlyski; J. Proriol; J. M. Rossignol; F. Saadi; T. Fearnley; J. B. Hansen; J. D. Hansen; J. R. Hansen; P. H. Hansen; B. S. Nilsson; A. Kyriakis; E. Simopoulou; I. Siotis; A. Vayaki; K. Zachariadou; A. Blondel; G. Bonneaud; J. C. Brient; P. Bourdon; L. Passalacqua; A. Rougé; M. Rumpf; R. Tanaka; A. Valassi; M. Verderi; H. Videau; D. J. Candlin; M. I. Parsons; E. Focardi; G. Parrini; M. Corden; M. Delfino; C. Georgiopoulos; D. E. Jaffe; A. Antonelli; G. Bencivenni; G. Bologna; F. Bossi; P. Campana; G. Capon; V. Chiarella; G. Felici; P. Laurelli; G. Mannocchi; F. Murtas; G. P. Murtas; M. Pepe-Altarelli; S. J. Dorris; A. W. Halley; I. ten Have; I. G. Knowles; J. G. Lynch; W. T. Morton; V. O'Shea; C. Raine; P. Reeves; J. M. Scarr; K. Smith; M. G. Smith; A. S. Thompson; F. Thomson; S. Thorn; R. M. Turnbull; U. Becker; O. Braun; C. Geweniger; G. Graefe; P. Hanke; V. Hepp; E. E. Kluge; A. Putzer; B. Rensch; M. Schmidt; J. Sommer; H. Stenzel; K. Tittel; S. Werner; M. Wunsch; R. Beuselinck; D. M. Binnie; W. Cameron; D. J. Colling; P. J. Dornan; N. Konstantinidis; L. Moneta; A. Moutoussi; J. Nash; G. San Martin; J. K. Sedgbeer; A. M. Stacey; G. Dissertori; P. Girtler; E. Kneringer; D. Kuhn; G. Rudolph; C. K. Bowdery; T. J. Brodbeck; P. Colrain; G. Crawford; A. J. Finch; F. Foster; G. Hughes; T. Sloan; E. P. Whelan; M. I. Williams; A. Galla; A. M. Greene; K. Kleinknecht; G. Quast; J. Raab; B. Renk; H. G. Sander; R. Wanke; C. Zeitnitz; J. J. Aubert; A. M. Bencheikh; C. Benchouk; A. Bonissent; G. Bujosa; D. Calvet; J. Carr; C. Diaconu; F. Etienne; M. Thulasidas; D. Nicod; P. Payre; D. Rousseau; M. Talby; I. Abt; R. Assmann; C. Bauer; W. Blum; D. Brown; H. Dietl; F. Dydak; G. Ganis; C. Gotzhein; K. Jakobs; H. Kroha; G. Lütjens; G. Lutz; W. Männer; H. G. Moser; R. Richter; A. Rosado-Schlosser; R. Settles; H. Seywerd; U. Stierlin; R. St Denis; G. Wolf; R. Alemany; J. Boucrot; O. Callot; A. Cordier; F. Courault; M. Davier; L. Duflot; J. F. Grivaz; Ph Heusse; M. Jacquet; D. W. Kim; F. Le Diberder; J. Lefrançois; A. M. Lutz; G. Musolino; I. Nikolic; H. J. Park; I. C. Park; M. H. Schune; S. Simion; J. J. Veillet; I. Videau; D. Abbaneo; P. Azzurri; G. Bagliesi; G. Batignani; S. Bettarini; C. Bozzi; G. Calderini; M. Carpinelli; M. A. Ciocci; V. Ciulli; R. Dell'Orso; R. Fantechi; I. Ferrante; L. Foà; F. Forti; D. Gambino; A. Giassi; M. A. Giorgi; A. Gregorio; F. Ligabue; A. Lusiani; P. S. Marrocchesi; A. Messineo; G. Rizzo; G. Sanguinetti; A. Sciabà; P. Spagnolo; J. Steinberger; R. Tenchini; G. Tonelli; G. Triggiani; C. Vannini; P. G. Verdini; J. Walsh; A. P. Betteridge; G. A. Blair; L. M. Bryant; F. Cerutti; Y. Gao; M. G. Green; D. L. Johnson; T. Medcalf; L1 M. Mir; P. Perrodo; J. A. Strong; V. Bertin; D. R. Botterill; R. W. Clifft; T. R. Edgecock; S. Haywood; M. Edwards; P. Maley; P. R. Norton; J. C. Thompson; B. Bloch-Devaux; P. Colas; H. Duarte; S. Emery; W. Kozanecki; E. Lançon; M. C. Lemaire; E. Locci; B. Marx; P. Perez; J. Rander; J. F. Renardy; A. Rosowsky; A. Roussarie; J. P. Schuller; J. Schwindling; D. Si Mohand; A. Trabelsi; B. Vallage; R. P. Johnson; H. Y. Kim; A. M. Litke; M. A. McNeil; G. Taylor; A. Beddall; C. N. Booth; R. Boswell; S. Cartwright; F. Combley; I. Dawson; A. Koksal; M. Letho; W. M. Newton; C. Rankin; L. F. Thompson; A. Böhrer; S. Brandt; G. Cowan; E. Feigl; C. Grupen; G. Lutters; J. Minguet-Rodriguez; F. Rivera; P. Saraiva; L. Smolik; F. Stephan; M. Apollonio; L. Bosisio; R. Della Marina; G. Giannini; B. Gobbo; F. Ragusa; J. Rothberg; S. Wasserbaech; S. R. Armstrong; L. Bellantoni; P. Elmer; Z. Feng; D. P.S. Ferguson; Y. S. Gao; S. González; J. Grahl; J. L. Harton; O. J. Hayes; H. Hu; P. A. McNamara; J. M. Nachtman; W. Orejudos; Y. B. Pan; Y. Saadi; M. Schmitt; I. J. Scott; V. Sharma; J. D. Turk; A. M. Walsh; Sau Lan Wu; X. Wu; J. M. Yamartino; M. Zheng; G. Zobernig

doi:10.1016/0370-2693(95)00980-Y

Measurements of the b baryon lifetime

D. Buskulic, D. Casper, I. De Bonis, D. Decamp, P. Ghez, C. Goy, J. P. Lees, M. N. Minard, P. Odier, B. Pietrzyk, F. Ariztizabal, M. Chmeissani, J. M. Crespo, I. Efthymiopoulos, E. Fernandez, M. Fernandez-Bosman, V. Gaitan, L1 Garrido, M. Martinez, S. OrteuA. Pacheco, C. Padilla, F. Palla, A. Pascual, J. A. Perlas, F. Sanchez, F. Teubert, A. Colaleo, D. Creanza, M. de Palma, A. Farilla, G. Gelao, M. Girone, G. Iaselli, G. Maggi, N. Marinelli, S. Natali, S. Nuzzo, A. Ranieri, G. Raso, F. Romano, F. Ruggieri, G. Selvaggi, L. Silvestris, P. Tempesta, G. Zito, X. Huang, J. Lin, Q. Ouyang, T. Wang, Y. Xie, R. Xu, S. Xue, J. Zhang, L. Zhang, W. Zhao, G. Bonvicini, D. Cassel, M. Cattaneo, P. Comas, P. Coyle, H. Drevermann, A. Engelhardt, R. W. Forty, M. Frank, R. Hagelberg, J. Harvey, R. Jacobsen, P. Janot, B. Jost, J. Knobloch, I. Lehraus, M. Maggi, C. Markou, E. B. Martin, P. Mato, H. Meinhard, A. Minten, R. Miquel, T. Oest, P. Palazzi, J. R. Pater, J. F. Pusztaszeri, F. Ranjard, P. Rensing, L. Rolandi, D. Schlatter, M. Schmelling, O. Schneider, W. Tejessy, I. R. Tomalin, A. Venturi, H. Wachsmuth, W. Wiedenmann, T. Wildish, W. Witzeling, J. Wotschack, Z. Ajaltouni, M. Bardadin-Otwinowska, A. Barres, C. Boyer, A. Falvard, P. Gay, C. Guicheney, P. Henrard, J. Jousset, B. Michel, S. Monteil, J. C. Montret, D. Pallin, P. Perret, F. Podlyski, J. Proriol, J. M. Rossignol, F. Saadi, T. Fearnley, J. B. Hansen, J. D. Hansen, J. R. Hansen, P. H. Hansen, B. S. Nilsson, A. Kyriakis, E. Simopoulou, I. Siotis, A. Vayaki, K. Zachariadou, A. Blondel, G. Bonneaud, J. C. Brient, P. Bourdon, L. Passalacqua, A. Rougé, M. Rumpf, R. Tanaka, A. Valassi, M. Verderi, H. Videau, D. J. Candlin, M. I. Parsons, E. Focardi, G. Parrini, M. Corden, M. Delfino, C. Georgiopoulos, D. E. Jaffe, A. Antonelli, G. Bencivenni, G. Bologna, F. Bossi, P. Campana, G. Capon, V. Chiarella, G. Felici, P. Laurelli, G. Mannocchi, F. Murtas, G. P. Murtas, M. Pepe-Altarelli, S. J. Dorris, A. W. Halley, I. ten Have, I. G. Knowles, J. G. Lynch, W. T. Morton, V. O'Shea, C. Raine, P. Reeves, J. M. Scarr, K. Smith, M. G. Smith, A. S. Thompson, F. Thomson, S. Thorn, R. M. Turnbull, U. Becker, O. Braun, C. Geweniger, G. Graefe, P. Hanke, V. Hepp, E. E. Kluge, A. Putzer, B. Rensch, M. Schmidt, J. Sommer, H. Stenzel, K. Tittel, S. Werner, M. Wunsch, R. Beuselinck, D. M. Binnie, W. Cameron, D. J. Colling, P. J. Dornan, N. Konstantinidis, L. Moneta, A. Moutoussi, J. Nash, G. San Martin, J. K. Sedgbeer, A. M. Stacey, G. Dissertori, P. Girtler, E. Kneringer, D. Kuhn, G. Rudolph, C. K. Bowdery, T. J. Brodbeck, P. Colrain, G. Crawford, A. J. Finch, F. Foster, G. Hughes, T. Sloan, E. P. Whelan, M. I. Williams, A. Galla, A. M. Greene, K. Kleinknecht, G. Quast, J. Raab, B. Renk, H. G. Sander, R. Wanke, C. Zeitnitz, J. J. Aubert, A. M. Bencheikh, C. Benchouk, A. Bonissent, G. Bujosa, D. Calvet, J. Carr, C. Diaconu, F. Etienne, M. Thulasidas, D. Nicod, P. Payre, D. Rousseau, M. Talby, I. Abt, R. Assmann, C. Bauer, W. Blum, D. Brown, H. Dietl, F. Dydak, G. Ganis, C. Gotzhein, K. Jakobs, H. Kroha, G. Lütjens, G. Lutz, W. Männer, H. G. Moser, R. Richter, A. Rosado-Schlosser, R. Settles, H. Seywerd, U. Stierlin, R. St Denis, G. Wolf, R. Alemany, J. Boucrot, O. Callot, A. Cordier, F. Courault, M. Davier, L. Duflot, J. F. Grivaz, Ph Heusse, M. Jacquet, D. W. Kim, F. Le Diberder, J. Lefrançois, A. M. Lutz, G. Musolino, I. Nikolic, H. J. Park, I. C. Park, M. H. Schune, S. Simion, J. J. Veillet, I. Videau, D. Abbaneo, P. Azzurri, G. Bagliesi, G. Batignani, S. Bettarini, C. Bozzi, G. Calderini, M. Carpinelli, M. A. Ciocci, V. Ciulli, R. Dell'Orso, R. Fantechi, I. Ferrante, L. Foà, F. Forti, D. Gambino, A. Giassi, M. A. Giorgi, A. Gregorio, F. Ligabue, A. Lusiani, P. S. Marrocchesi, A. Messineo, G. Rizzo, G. Sanguinetti, A. Sciabà, P. Spagnolo, J. Steinberger, R. Tenchini, G. Tonelli, G. Triggiani, C. Vannini, P. G. Verdini, J. Walsh, A. P. Betteridge, G. A. Blair, L. M. Bryant, F. Cerutti, Y. Gao, M. G. Green, D. L. Johnson, T. Medcalf, L1 M. Mir, P. Perrodo, J. A. Strong, V. Bertin, D. R. Botterill, R. W. Clifft, T. R. Edgecock, S. Haywood, M. Edwards, P. Maley, P. R. Norton, J. C. Thompson, B. Bloch-Devaux, P. Colas, H. Duarte, S. Emery, W. Kozanecki, E. Lançon, M. C. Lemaire, E. Locci, B. Marx, P. Perez, J. Rander, J. F. Renardy, A. Rosowsky, A. Roussarie, J. P. Schuller, J. Schwindling, D. Si Mohand, A. Trabelsi, B. Vallage, R. P. Johnson, H. Y. Kim, A. M. Litke, M. A. McNeil, G. Taylor, A. Beddall, C. N. Booth, R. Boswell, S. Cartwright, F. Combley, I. Dawson, A. Koksal, M. Letho, W. M. Newton, C. Rankin, L. F. Thompson, A. Böhrer, S. Brandt, G. Cowan, E. Feigl, C. Grupen, G. Lutters, J. Minguet-Rodriguez, F. Rivera, P. Saraiva, L. Smolik, F. Stephan, M. Apollonio, L. Bosisio, R. Della Marina, G. Giannini, B. Gobbo, F. Ragusa, J. Rothberg, S. Wasserbaech, S. R. Armstrong, L. Bellantoni, P. Elmer, Z. Feng, D. P.S. Ferguson, Y. S. Gao, S. González, J. Grahl, J. L. Harton, O. J. Hayes, H. Hu, P. A. McNamara, J. M. Nachtman, W. Orejudos, Y. B. Pan, Y. Saadi, M. Schmitt, I. J. Scott, V. Sharma, J. D. Turk, A. M. Walsh, Sau Lan Wu, X. Wu, J. M. Yamartino, M. Zheng, G. Zobernig

Research output: Contribution to journal › Article › peer-review

27 Scopus citations

Abstract

Using about 1.5 million hadronic Z decays recorded with the aleph detector, the lifetime of the b baryons has been measured using two independent data samples. From a maximum likelihood fit to the impact parameter distribution of leptons in 519 Λℓ^- combinations containing a b baryon sample of 290 decays, the measured b baryon lifetime is τ_b-baryon = 1.05_-0.11 ^+0.12(stat)±0.09(syst) ps. The lifetime of the Λ_b ⁰ baryon from a maximum likelihood fit to the proper time distribution of 58 Λ_c ⁺ℓ^- candidates containing a Λ_b ⁰ sample of 44 decays, is τ_{Λ_b ⁰} = 1.02_-0.18 ^+0.23(stat) ± 0.06(syst) ps.

Original language	English (US)
Pages (from-to)	685-698
Number of pages	14
Journal	Physics Letters B
Volume	357
Issue number	4
DOIs	https://doi.org/10.1016/0370-2693(95)00980-Y
State	Published - Sep 14 1995
Externally published	Yes

All Science Journal Classification (ASJC) codes

Nuclear and High Energy Physics

Access to Document

10.1016/0370-2693(95)00980-Y

Cite this

Buskulic, D., Casper, D., De Bonis, I., Decamp, D., Ghez, P., Goy, C., Lees, J. P., Minard, M. N., Odier, P., Pietrzyk, B., Ariztizabal, F., Chmeissani, M., Crespo, J. M., Efthymiopoulos, I., Fernandez, E., Fernandez-Bosman, M., Gaitan, V., Garrido, L., Martinez, M., ... Zobernig, G. (1995). Measurements of the b baryon lifetime. Physics Letters B, 357(4), 685-698. https://doi.org/10.1016/0370-2693(95)00980-Y

@article{157e43f32d5040299ba9e06dee125bed,

title = "Measurements of the b baryon lifetime",

abstract = "Using about 1.5 million hadronic Z decays recorded with the aleph detector, the lifetime of the b baryons has been measured using two independent data samples. From a maximum likelihood fit to the impact parameter distribution of leptons in 519 Λℓ- combinations containing a b baryon sample of 290 decays, the measured b baryon lifetime is τb-baryon = 1.05-0.11 +0.12(stat)±0.09(syst) ps. The lifetime of the Λb 0 baryon from a maximum likelihood fit to the proper time distribution of 58 Λc +ℓ- candidates containing a Λb 0 sample of 44 decays, is τΛb 0 = 1.02-0.18 +0.23(stat) ± 0.06(syst) ps.",

author = "D. Buskulic and D. Casper and {De Bonis}, I. and D. Decamp and P. Ghez and C. Goy and Lees, {J. P.} and Minard, {M. N.} and P. Odier and B. Pietrzyk and F. Ariztizabal and M. Chmeissani and Crespo, {J. M.} and I. Efthymiopoulos and E. Fernandez and M. Fernandez-Bosman and V. Gaitan and L1 Garrido and M. Martinez and S. Orteu and A. Pacheco and C. Padilla and F. Palla and A. Pascual and Perlas, {J. A.} and F. Sanchez and F. Teubert and A. Colaleo and D. Creanza and {de Palma}, M. and A. Farilla and G. Gelao and M. Girone and G. Iaselli and G. Maggi and N. Marinelli and S. Natali and S. Nuzzo and A. Ranieri and G. Raso and F. Romano and F. Ruggieri and G. Selvaggi and L. Silvestris and P. Tempesta and G. Zito and X. Huang and J. Lin and Q. Ouyang and T. Wang and Y. Xie and R. Xu and S. Xue and J. Zhang and L. Zhang and W. Zhao and G. Bonvicini and D. Cassel and M. Cattaneo and P. Comas and P. Coyle and H. Drevermann and A. Engelhardt and Forty, {R. W.} and M. Frank and R. Hagelberg and J. Harvey and R. Jacobsen and P. Janot and B. Jost and J. Knobloch and I. Lehraus and M. Maggi and C. Markou and Martin, {E. B.} and P. Mato and H. Meinhard and A. Minten and R. Miquel and T. Oest and P. Palazzi and Pater, {J. R.} and Pusztaszeri, {J. F.} and F. Ranjard and P. Rensing and L. Rolandi and D. Schlatter and M. Schmelling and O. Schneider and W. Tejessy and Tomalin, {I. R.} and A. Venturi and H. Wachsmuth and W. Wiedenmann and T. Wildish and W. Witzeling and J. Wotschack and Z. Ajaltouni and M. Bardadin-Otwinowska and A. Barres and C. Boyer and A. Falvard and P. Gay and C. Guicheney and P. Henrard and J. Jousset and B. Michel and S. Monteil and Montret, {J. C.} and D. Pallin and P. Perret and F. Podlyski and J. Proriol and Rossignol, {J. M.} and F. Saadi and T. Fearnley and Hansen, {J. B.} and Hansen, {J. D.} and Hansen, {J. R.} and Hansen, {P. H.} and Nilsson, {B. S.} and A. Kyriakis and E. Simopoulou and I. Siotis and A. Vayaki and K. Zachariadou and A. Blondel and G. Bonneaud and Brient, {J. C.} and P. Bourdon and L. Passalacqua and A. Roug{\'e} and M. Rumpf and R. Tanaka and A. Valassi and M. Verderi and H. Videau and Candlin, {D. J.} and Parsons, {M. I.} and E. Focardi and G. Parrini and M. Corden and M. Delfino and C. Georgiopoulos and Jaffe, {D. E.} and A. Antonelli and G. Bencivenni and G. Bologna and F. Bossi and P. Campana and G. Capon and V. Chiarella and G. Felici and P. Laurelli and G. Mannocchi and F. Murtas and Murtas, {G. P.} and M. Pepe-Altarelli and Dorris, {S. J.} and Halley, {A. W.} and {ten Have}, I. and Knowles, {I. G.} and Lynch, {J. G.} and Morton, {W. T.} and V. O'Shea and C. Raine and P. Reeves and Scarr, {J. M.} and K. Smith and Smith, {M. G.} and Thompson, {A. S.} and F. Thomson and S. Thorn and Turnbull, {R. M.} and U. Becker and O. Braun and C. Geweniger and G. Graefe and P. Hanke and V. Hepp and Kluge, {E. E.} and A. Putzer and B. Rensch and M. Schmidt and J. Sommer and H. Stenzel and K. Tittel and S. Werner and M. Wunsch and R. Beuselinck and Binnie, {D. M.} and W. Cameron and Colling, {D. J.} and Dornan, {P. J.} and N. Konstantinidis and L. Moneta and A. Moutoussi and J. Nash and {San Martin}, G. and Sedgbeer, {J. K.} and Stacey, {A. M.} and G. Dissertori and P. Girtler and E. Kneringer and D. Kuhn and G. Rudolph and Bowdery, {C. K.} and Brodbeck, {T. J.} and P. Colrain and G. Crawford and Finch, {A. J.} and F. Foster and G. Hughes and T. Sloan and Whelan, {E. P.} and Williams, {M. I.} and A. Galla and Greene, {A. M.} and K. Kleinknecht and G. Quast and J. Raab and B. Renk and Sander, {H. G.} and R. Wanke and C. Zeitnitz and Aubert, {J. J.} and Bencheikh, {A. M.} and C. Benchouk and A. Bonissent and G. Bujosa and D. Calvet and J. Carr and C. Diaconu and F. Etienne and M. Thulasidas and D. Nicod and P. Payre and D. Rousseau and M. Talby and I. Abt and R. Assmann and C. Bauer and W. Blum and D. Brown and H. Dietl and F. Dydak and G. Ganis and C. Gotzhein and K. Jakobs and H. Kroha and G. L{\"u}tjens and G. Lutz and W. M{\"a}nner and Moser, {H. G.} and R. Richter and A. Rosado-Schlosser and R. Settles and H. Seywerd and U. Stierlin and Denis, {R. St} and G. Wolf and R. Alemany and J. Boucrot and O. Callot and A. Cordier and F. Courault and M. Davier and L. Duflot and Grivaz, {J. F.} and Ph Heusse and M. Jacquet and Kim, {D. W.} and {Le Diberder}, F. and J. Lefran{\c c}ois and Lutz, {A. M.} and G. Musolino and I. Nikolic and Park, {H. J.} and Park, {I. C.} and Schune, {M. H.} and S. Simion and Veillet, {J. J.} and I. Videau and D. Abbaneo and P. Azzurri and G. Bagliesi and G. Batignani and S. Bettarini and C. Bozzi and G. Calderini and M. Carpinelli and Ciocci, {M. A.} and V. Ciulli and R. Dell'Orso and R. Fantechi and I. Ferrante and L. Fo{\`a} and F. Forti and D. Gambino and A. Giassi and Giorgi, {M. A.} and A. Gregorio and F. Ligabue and A. Lusiani and Marrocchesi, {P. S.} and A. Messineo and G. Rizzo and G. Sanguinetti and A. Sciab{\`a} and P. Spagnolo and J. Steinberger and R. Tenchini and G. Tonelli and G. Triggiani and C. Vannini and Verdini, {P. G.} and J. Walsh and Betteridge, {A. P.} and Blair, {G. A.} and Bryant, {L. M.} and F. Cerutti and Y. Gao and Green, {M. G.} and Johnson, {D. L.} and T. Medcalf and Mir, {L1 M.} and P. Perrodo and Strong, {J. A.} and V. Bertin and Botterill, {D. R.} and Clifft, {R. W.} and Edgecock, {T. R.} and S. Haywood and M. Edwards and P. Maley and Norton, {P. R.} and Thompson, {J. C.} and B. Bloch-Devaux and P. Colas and H. Duarte and S. Emery and W. Kozanecki and E. Lan{\c c}on and Lemaire, {M. C.} and E. Locci and B. Marx and P. Perez and J. Rander and Renardy, {J. F.} and A. Rosowsky and A. Roussarie and Schuller, {J. P.} and J. Schwindling and {Si Mohand}, D. and A. Trabelsi and B. Vallage and Johnson, {R. P.} and Kim, {H. Y.} and Litke, {A. M.} and McNeil, {M. A.} and G. Taylor and A. Beddall and Booth, {C. N.} and R. Boswell and S. Cartwright and F. Combley and I. Dawson and A. Koksal and M. Letho and Newton, {W. M.} and C. Rankin and Thompson, {L. F.} and A. B{\"o}hrer and S. Brandt and G. Cowan and E. Feigl and C. Grupen and G. Lutters and J. Minguet-Rodriguez and F. Rivera and P. Saraiva and L. Smolik and F. Stephan and M. Apollonio and L. Bosisio and {Della Marina}, R. and G. Giannini and B. Gobbo and F. Ragusa and J. Rothberg and S. Wasserbaech and Armstrong, {S. R.} and L. Bellantoni and P. Elmer and Z. Feng and Ferguson, {D. P.S.} and Gao, {Y. S.} and S. Gonz{\'a}lez and J. Grahl and Harton, {J. L.} and Hayes, {O. J.} and H. Hu and McNamara, {P. A.} and Nachtman, {J. M.} and W. Orejudos and Pan, {Y. B.} and Y. Saadi and M. Schmitt and Scott, {I. J.} and V. Sharma and Turk, {J. D.} and Walsh, {A. M.} and Wu, {Sau Lan} and X. Wu and Yamartino, {J. M.} and M. Zheng and G. Zobernig",

note = "Funding Information: 1N ow at CERN, 1211G eneva2 3, Switzerland. 2 Deceased. 3 Now at Dipartimentod i Fisica, Universitadi Lecce, 73100 Lecce,I taly. 4 Also Istitutod i Fisica GeneraleU, niversiti di Torino, Torino, Italy. 5 Also Istituto di Cosmo-Geofisica de1 C.N.R., Torino, Italy. 6 Now at TSM Business School, Enschede, The Netherlands. 7 Supported by CICYT, Spain. 8 Supported by the National Science Foundation of China. 9 Supported by the Danish Natural Science Research Council. lo Supportedb y the UK Particle Physics and Astronomy Research Funding Information: Council. ” Supportedb y the US Departmento f Energy, contract DE-AC02-76EROO881. l2 On leave from Universitat Autonoma de Barcelona, Barcelona, Spain. I3 Supportedb y the US Departmento f Energy, contract DE-FGOS-92ER40142. l4 Supportedb y the US Departmentof Energy, contract DE-FCOS-85ER250000. l5 Permanenta ddress:U niversitat de Barcelona, 08208 Barcelona, Spain. l6 Supported by the Bundesministeriumf ur Forschung und Tech- Funding Information: nologie, Germany. l7 Supported by the Direction des Sciences de la Matiere, C.E.A. I8 Supported by Fonds zur Fijrderung der wissenschaftlichen Forschung, Austria. lg Permanent address: Kangnung National University, Kangnung, Korea. 2oN ow at Dipartimento di Fisica, Universitl di Milano, Milano, Italy. 21A lso at CERN, 1211 Geneva 23, Switzerland. 22S upported by the US Departmento f Energy, grant DBFG03-92ER40689. 23N ow at University of Athens, 157-71 Athens, Greece. 21N1 ow at Lawrence Berkeley Laboratory, Berkeley, CA 94720, USA. Z Partially supported by Colciencias, Colombia. 26A lso at Istituto di Matematica e Fisica, Universita di Sassari, Sassari, Italy. ” Now at SchusterL aboratory, University of Manchester,M anch-ester Ml3 9PL, UK. 28N ow at Colorado State University, Fort Collins, CO 80523, USA. 2gN ow at University of California at San Diego, La Jolla, CA 92093, USA. so Permanent address: Newman Laboratory, Cornell University, Ithaca, NY 14853, USA.",

year = "1995",

month = sep,

day = "14",

doi = "10.1016/0370-2693(95)00980-Y",

language = "English (US)",

volume = "357",

pages = "685--698",

journal = "Physics Letters B",

issn = "0370-2693",

publisher = "Elsevier",

number = "4",

}

Buskulic, D, Casper, D, De Bonis, I, Decamp, D, Ghez, P, Goy, C, Lees, JP, Minard, MN, Odier, P, Pietrzyk, B, Ariztizabal, F, Chmeissani, M, Crespo, JM, Efthymiopoulos, I, Fernandez, E, Fernandez-Bosman, M, Gaitan, V, Garrido, L, Martinez, M, Orteu, S, Pacheco, A, Padilla, C, Palla, F, Pascual, A, Perlas, JA, Sanchez, F, Teubert, F, Colaleo, A, Creanza, D, de Palma, M, Farilla, A, Gelao, G, Girone, M, Iaselli, G, Maggi, G, Marinelli, N, Natali, S, Nuzzo, S, Ranieri, A, Raso, G, Romano, F, Ruggieri, F, Selvaggi, G, Silvestris, L, Tempesta, P, Zito, G, Huang, X, Lin, J, Ouyang, Q, Wang, T, Xie, Y, Xu, R, Xue, S, Zhang, J, Zhang, L, Zhao, W, Bonvicini, G, Cassel, D, Cattaneo, M, Comas, P, Coyle, P, Drevermann, H, Engelhardt, A, Forty, RW, Frank, M, Hagelberg, R, Harvey, J, Jacobsen, R, Janot, P, Jost, B, Knobloch, J, Lehraus, I, Maggi, M, Markou, C, Martin, EB, Mato, P, Meinhard, H, Minten, A, Miquel, R, Oest, T, Palazzi, P, Pater, JR, Pusztaszeri, JF, Ranjard, F, Rensing, P, Rolandi, L, Schlatter, D, Schmelling, M, Schneider, O, Tejessy, W, Tomalin, IR, Venturi, A, Wachsmuth, H, Wiedenmann, W, Wildish, T, Witzeling, W, Wotschack, J, Ajaltouni, Z, Bardadin-Otwinowska, M, Barres, A, Boyer, C, Falvard, A, Gay, P, Guicheney, C, Henrard, P, Jousset, J, Michel, B, Monteil, S, Montret, JC, Pallin, D, Perret, P, Podlyski, F, Proriol, J, Rossignol, JM, Saadi, F, Fearnley, T, Hansen, JB, Hansen, JD, Hansen, JR, Hansen, PH, Nilsson, BS, Kyriakis, A, Simopoulou, E, Siotis, I, Vayaki, A, Zachariadou, K, Blondel, A, Bonneaud, G, Brient, JC, Bourdon, P, Passalacqua, L, Rougé, A, Rumpf, M, Tanaka, R, Valassi, A, Verderi, M, Videau, H, Candlin, DJ, Parsons, MI, Focardi, E, Parrini, G, Corden, M, Delfino, M, Georgiopoulos, C, Jaffe, DE, Antonelli, A, Bencivenni, G, Bologna, G, Bossi, F, Campana, P, Capon, G, Chiarella, V, Felici, G, Laurelli, P, Mannocchi, G, Murtas, F, Murtas, GP, Pepe-Altarelli, M, Dorris, SJ, Halley, AW, ten Have, I, Knowles, IG, Lynch, JG, Morton, WT, O'Shea, V, Raine, C, Reeves, P, Scarr, JM, Smith, K, Smith, MG, Thompson, AS, Thomson, F, Thorn, S, Turnbull, RM, Becker, U, Braun, O, Geweniger, C, Graefe, G, Hanke, P, Hepp, V, Kluge, EE, Putzer, A, Rensch, B, Schmidt, M, Sommer, J, Stenzel, H, Tittel, K, Werner, S, Wunsch, M, Beuselinck, R, Binnie, DM, Cameron, W, Colling, DJ, Dornan, PJ, Konstantinidis, N, Moneta, L, Moutoussi, A, Nash, J, San Martin, G, Sedgbeer, JK, Stacey, AM, Dissertori, G, Girtler, P, Kneringer, E, Kuhn, D, Rudolph, G, Bowdery, CK, Brodbeck, TJ, Colrain, P, Crawford, G, Finch, AJ, Foster, F, Hughes, G, Sloan, T, Whelan, EP, Williams, MI, Galla, A, Greene, AM, Kleinknecht, K, Quast, G, Raab, J, Renk, B, Sander, HG, Wanke, R, Zeitnitz, C, Aubert, JJ, Bencheikh, AM, Benchouk, C, Bonissent, A, Bujosa, G, Calvet, D, Carr, J, Diaconu, C, Etienne, F, Thulasidas, M, Nicod, D, Payre, P, Rousseau, D, Talby, M, Abt, I, Assmann, R, Bauer, C, Blum, W, Brown, D, Dietl, H, Dydak, F, Ganis, G, Gotzhein, C, Jakobs, K, Kroha, H, Lütjens, G, Lutz, G, Männer, W, Moser, HG, Richter, R, Rosado-Schlosser, A, Settles, R, Seywerd, H, Stierlin, U, Denis, RS, Wolf, G, Alemany, R, Boucrot, J, Callot, O, Cordier, A, Courault, F, Davier, M, Duflot, L, Grivaz, JF, Heusse, P, Jacquet, M, Kim, DW, Le Diberder, F, Lefrançois, J, Lutz, AM, Musolino, G, Nikolic, I, Park, HJ, Park, IC, Schune, MH, Simion, S, Veillet, JJ, Videau, I, Abbaneo, D, Azzurri, P, Bagliesi, G, Batignani, G, Bettarini, S, Bozzi, C, Calderini, G, Carpinelli, M, Ciocci, MA, Ciulli, V, Dell'Orso, R, Fantechi, R, Ferrante, I, Foà, L, Forti, F, Gambino, D, Giassi, A, Giorgi, MA, Gregorio, A, Ligabue, F, Lusiani, A, Marrocchesi, PS, Messineo, A, Rizzo, G, Sanguinetti, G, Sciabà, A, Spagnolo, P, Steinberger, J, Tenchini, R, Tonelli, G, Triggiani, G, Vannini, C, Verdini, PG, Walsh, J, Betteridge, AP, Blair, GA, Bryant, LM, Cerutti, F, Gao, Y, Green, MG, Johnson, DL, Medcalf, T, Mir, LM, Perrodo, P, Strong, JA, Bertin, V, Botterill, DR, Clifft, RW, Edgecock, TR, Haywood, S, Edwards, M, Maley, P, Norton, PR, Thompson, JC, Bloch-Devaux, B, Colas, P, Duarte, H, Emery, S, Kozanecki, W, Lançon, E, Lemaire, MC, Locci, E, Marx, B, Perez, P, Rander, J, Renardy, JF, Rosowsky, A, Roussarie, A, Schuller, JP, Schwindling, J, Si Mohand, D, Trabelsi, A, Vallage, B, Johnson, RP, Kim, HY, Litke, AM, McNeil, MA, Taylor, G, Beddall, A, Booth, CN, Boswell, R, Cartwright, S, Combley, F, Dawson, I, Koksal, A, Letho, M, Newton, WM, Rankin, C, Thompson, LF, Böhrer, A, Brandt, S, Cowan, G, Feigl, E, Grupen, C, Lutters, G, Minguet-Rodriguez, J, Rivera, F, Saraiva, P, Smolik, L, Stephan, F, Apollonio, M, Bosisio, L, Della Marina, R, Giannini, G, Gobbo, B, Ragusa, F, Rothberg, J, Wasserbaech, S, Armstrong, SR, Bellantoni, L, Elmer, P, Feng, Z, Ferguson, DPS, Gao, YS, González, S, Grahl, J, Harton, JL, Hayes, OJ, Hu, H, McNamara, PA, Nachtman, JM, Orejudos, W, Pan, YB, Saadi, Y, Schmitt, M, Scott, IJ, Sharma, V, Turk, JD, Walsh, AM, Wu, SL, Wu, X, Yamartino, JM, Zheng, M & Zobernig, G 1995, 'Measurements of the b baryon lifetime', Physics Letters B, vol. 357, no. 4, pp. 685-698. https://doi.org/10.1016/0370-2693(95)00980-Y

TY - JOUR

T1 - Measurements of the b baryon lifetime

AU - Buskulic, D.

AU - Casper, D.

AU - De Bonis, I.

AU - Decamp, D.

AU - Ghez, P.

AU - Goy, C.

AU - Lees, J. P.

AU - Minard, M. N.

AU - Odier, P.

AU - Pietrzyk, B.

AU - Ariztizabal, F.

AU - Chmeissani, M.

AU - Crespo, J. M.

AU - Efthymiopoulos, I.

AU - Fernandez, E.

AU - Fernandez-Bosman, M.

AU - Gaitan, V.

AU - Garrido, L1

AU - Martinez, M.

AU - Orteu, S.

AU - Pacheco, A.

AU - Padilla, C.

AU - Palla, F.

AU - Pascual, A.

AU - Perlas, J. A.

AU - Sanchez, F.

AU - Teubert, F.

AU - Colaleo, A.

AU - Creanza, D.

AU - de Palma, M.

AU - Farilla, A.

AU - Gelao, G.

AU - Girone, M.

AU - Iaselli, G.

AU - Maggi, G.

AU - Marinelli, N.

AU - Natali, S.

AU - Nuzzo, S.

AU - Ranieri, A.

AU - Raso, G.

AU - Romano, F.

AU - Ruggieri, F.

AU - Selvaggi, G.

AU - Silvestris, L.

AU - Tempesta, P.

AU - Zito, G.

AU - Huang, X.

AU - Lin, J.

AU - Ouyang, Q.

AU - Wang, T.

AU - Xie, Y.

AU - Xu, R.

AU - Xue, S.

AU - Zhang, J.

AU - Zhang, L.

AU - Zhao, W.

AU - Bonvicini, G.

AU - Cassel, D.

AU - Cattaneo, M.

AU - Comas, P.

AU - Coyle, P.

AU - Drevermann, H.

AU - Engelhardt, A.

AU - Forty, R. W.

AU - Frank, M.

AU - Hagelberg, R.

AU - Harvey, J.

AU - Jacobsen, R.

AU - Janot, P.

AU - Jost, B.

AU - Knobloch, J.

AU - Lehraus, I.

AU - Maggi, M.

AU - Markou, C.

AU - Martin, E. B.

AU - Mato, P.

AU - Meinhard, H.

AU - Minten, A.

AU - Miquel, R.

AU - Oest, T.

AU - Palazzi, P.

AU - Pater, J. R.

AU - Pusztaszeri, J. F.

AU - Ranjard, F.

AU - Rensing, P.

AU - Rolandi, L.

AU - Schlatter, D.

AU - Schmelling, M.

AU - Schneider, O.

AU - Tejessy, W.

AU - Tomalin, I. R.

AU - Venturi, A.

AU - Wachsmuth, H.

AU - Wiedenmann, W.

AU - Wildish, T.

AU - Witzeling, W.

AU - Wotschack, J.

AU - Ajaltouni, Z.

AU - Bardadin-Otwinowska, M.

AU - Barres, A.

AU - Boyer, C.

AU - Falvard, A.

AU - Gay, P.

AU - Guicheney, C.

AU - Henrard, P.

AU - Jousset, J.

AU - Michel, B.

AU - Monteil, S.

AU - Montret, J. C.

AU - Pallin, D.

AU - Perret, P.

AU - Podlyski, F.

AU - Proriol, J.

AU - Rossignol, J. M.

AU - Saadi, F.

AU - Fearnley, T.

AU - Hansen, J. B.

AU - Hansen, J. D.

AU - Hansen, J. R.

AU - Hansen, P. H.

AU - Nilsson, B. S.

AU - Kyriakis, A.

AU - Simopoulou, E.

AU - Siotis, I.

AU - Vayaki, A.

AU - Zachariadou, K.

AU - Blondel, A.

AU - Bonneaud, G.

AU - Brient, J. C.

AU - Bourdon, P.

AU - Passalacqua, L.

AU - Rougé, A.

AU - Rumpf, M.

AU - Tanaka, R.

AU - Valassi, A.

AU - Verderi, M.

AU - Videau, H.

AU - Candlin, D. J.

AU - Parsons, M. I.

AU - Focardi, E.

AU - Parrini, G.

AU - Corden, M.

AU - Delfino, M.

AU - Georgiopoulos, C.

AU - Jaffe, D. E.

AU - Antonelli, A.

AU - Bencivenni, G.

AU - Bologna, G.

AU - Bossi, F.

AU - Campana, P.

AU - Capon, G.

AU - Chiarella, V.

AU - Felici, G.

AU - Laurelli, P.

AU - Mannocchi, G.

AU - Murtas, F.

AU - Murtas, G. P.

AU - Pepe-Altarelli, M.

AU - Dorris, S. J.

AU - Halley, A. W.

AU - ten Have, I.

AU - Knowles, I. G.

AU - Lynch, J. G.

AU - Morton, W. T.

AU - O'Shea, V.

AU - Raine, C.

AU - Reeves, P.

AU - Scarr, J. M.

AU - Smith, K.

AU - Smith, M. G.

AU - Thompson, A. S.

AU - Thomson, F.

AU - Thorn, S.

AU - Turnbull, R. M.

AU - Becker, U.

AU - Braun, O.

AU - Geweniger, C.

AU - Graefe, G.

AU - Hanke, P.

AU - Hepp, V.

AU - Kluge, E. E.

AU - Putzer, A.

AU - Rensch, B.

AU - Schmidt, M.

AU - Sommer, J.

AU - Stenzel, H.

AU - Tittel, K.

AU - Werner, S.

AU - Wunsch, M.

AU - Beuselinck, R.

AU - Binnie, D. M.

AU - Cameron, W.

AU - Colling, D. J.

AU - Dornan, P. J.

AU - Konstantinidis, N.

AU - Moneta, L.

AU - Moutoussi, A.

AU - Nash, J.

AU - San Martin, G.

AU - Sedgbeer, J. K.

AU - Stacey, A. M.

AU - Dissertori, G.

AU - Girtler, P.

AU - Kneringer, E.

AU - Kuhn, D.

AU - Rudolph, G.

AU - Bowdery, C. K.

AU - Brodbeck, T. J.

AU - Colrain, P.

AU - Crawford, G.

AU - Finch, A. J.

AU - Foster, F.

AU - Hughes, G.

AU - Sloan, T.

AU - Whelan, E. P.

AU - Williams, M. I.

AU - Galla, A.

AU - Greene, A. M.

AU - Kleinknecht, K.

AU - Quast, G.

AU - Raab, J.

AU - Renk, B.

AU - Sander, H. G.

AU - Wanke, R.

AU - Zeitnitz, C.

AU - Aubert, J. J.

AU - Bencheikh, A. M.

AU - Benchouk, C.

AU - Bonissent, A.

AU - Bujosa, G.

AU - Calvet, D.

AU - Carr, J.

AU - Diaconu, C.

AU - Etienne, F.

AU - Thulasidas, M.

AU - Nicod, D.

AU - Payre, P.

AU - Rousseau, D.

AU - Talby, M.

AU - Abt, I.

AU - Assmann, R.

AU - Bauer, C.

AU - Blum, W.

AU - Brown, D.

AU - Dietl, H.

AU - Dydak, F.

AU - Ganis, G.

AU - Gotzhein, C.

AU - Jakobs, K.

AU - Kroha, H.

AU - Lütjens, G.

AU - Lutz, G.

AU - Männer, W.

AU - Moser, H. G.

AU - Richter, R.

AU - Rosado-Schlosser, A.

AU - Settles, R.

AU - Seywerd, H.

AU - Stierlin, U.

AU - Denis, R. St

AU - Wolf, G.

AU - Alemany, R.

AU - Boucrot, J.

AU - Callot, O.

AU - Cordier, A.

AU - Courault, F.

AU - Davier, M.

AU - Duflot, L.

AU - Grivaz, J. F.

AU - Heusse, Ph

AU - Jacquet, M.

AU - Kim, D. W.

AU - Le Diberder, F.

AU - Lefrançois, J.

AU - Lutz, A. M.

AU - Musolino, G.

AU - Nikolic, I.

AU - Park, H. J.

AU - Park, I. C.

AU - Schune, M. H.

AU - Simion, S.

AU - Veillet, J. J.

AU - Videau, I.

AU - Abbaneo, D.

AU - Azzurri, P.

AU - Bagliesi, G.

AU - Batignani, G.

AU - Bettarini, S.

AU - Bozzi, C.

AU - Calderini, G.

AU - Carpinelli, M.

AU - Ciocci, M. A.

AU - Ciulli, V.

AU - Dell'Orso, R.

AU - Fantechi, R.

AU - Ferrante, I.

AU - Foà, L.

AU - Forti, F.

AU - Gambino, D.

AU - Giassi, A.

AU - Giorgi, M. A.

AU - Gregorio, A.

AU - Ligabue, F.

AU - Lusiani, A.

AU - Marrocchesi, P. S.

AU - Messineo, A.

AU - Rizzo, G.

AU - Sanguinetti, G.

AU - Sciabà, A.

AU - Spagnolo, P.

AU - Steinberger, J.

AU - Tenchini, R.

AU - Tonelli, G.

AU - Triggiani, G.

AU - Vannini, C.

AU - Verdini, P. G.

AU - Walsh, J.

AU - Betteridge, A. P.

AU - Blair, G. A.

AU - Bryant, L. M.

AU - Cerutti, F.

AU - Gao, Y.

AU - Green, M. G.

AU - Johnson, D. L.

AU - Medcalf, T.

AU - Mir, L1 M.

AU - Perrodo, P.

AU - Strong, J. A.

AU - Bertin, V.

AU - Botterill, D. R.

AU - Clifft, R. W.

AU - Edgecock, T. R.

AU - Haywood, S.

AU - Edwards, M.

AU - Maley, P.

AU - Norton, P. R.

AU - Thompson, J. C.

AU - Bloch-Devaux, B.

AU - Colas, P.

AU - Duarte, H.

AU - Emery, S.

AU - Kozanecki, W.

AU - Lançon, E.

AU - Lemaire, M. C.

AU - Locci, E.

AU - Marx, B.

AU - Perez, P.

AU - Rander, J.

AU - Renardy, J. F.

AU - Rosowsky, A.

AU - Roussarie, A.

AU - Schuller, J. P.

AU - Schwindling, J.

AU - Si Mohand, D.

AU - Trabelsi, A.

AU - Vallage, B.

AU - Johnson, R. P.

AU - Kim, H. Y.

AU - Litke, A. M.

AU - McNeil, M. A.

AU - Taylor, G.

AU - Beddall, A.

AU - Booth, C. N.

AU - Boswell, R.

AU - Cartwright, S.

AU - Combley, F.

AU - Dawson, I.

AU - Koksal, A.

AU - Letho, M.

AU - Newton, W. M.

AU - Rankin, C.

AU - Thompson, L. F.

AU - Böhrer, A.

AU - Brandt, S.

AU - Cowan, G.

AU - Feigl, E.

AU - Grupen, C.

AU - Lutters, G.

AU - Minguet-Rodriguez, J.

AU - Rivera, F.

AU - Saraiva, P.

AU - Smolik, L.

AU - Stephan, F.

AU - Apollonio, M.

AU - Bosisio, L.

AU - Della Marina, R.

AU - Giannini, G.

AU - Gobbo, B.

AU - Ragusa, F.

AU - Rothberg, J.

AU - Wasserbaech, S.

AU - Armstrong, S. R.

AU - Bellantoni, L.

AU - Elmer, P.

AU - Feng, Z.

AU - Ferguson, D. P.S.

AU - Gao, Y. S.

AU - González, S.

AU - Grahl, J.

AU - Harton, J. L.

AU - Hayes, O. J.

AU - Hu, H.

AU - McNamara, P. A.

AU - Nachtman, J. M.

AU - Orejudos, W.

AU - Pan, Y. B.

AU - Saadi, Y.

AU - Schmitt, M.

AU - Scott, I. J.

AU - Sharma, V.

AU - Turk, J. D.

AU - Walsh, A. M.

AU - Wu, Sau Lan

AU - Wu, X.

AU - Yamartino, J. M.

AU - Zheng, M.

AU - Zobernig, G.

N1 - Funding Information: 1N ow at CERN, 1211G eneva2 3, Switzerland. 2 Deceased. 3 Now at Dipartimentod i Fisica, Universitadi Lecce, 73100 Lecce,I taly. 4 Also Istitutod i Fisica GeneraleU, niversiti di Torino, Torino, Italy. 5 Also Istituto di Cosmo-Geofisica de1 C.N.R., Torino, Italy. 6 Now at TSM Business School, Enschede, The Netherlands. 7 Supported by CICYT, Spain. 8 Supported by the National Science Foundation of China. 9 Supported by the Danish Natural Science Research Council. lo Supportedb y the UK Particle Physics and Astronomy Research Funding Information: Council. ” Supportedb y the US Departmento f Energy, contract DE-AC02-76EROO881. l2 On leave from Universitat Autonoma de Barcelona, Barcelona, Spain. I3 Supportedb y the US Departmento f Energy, contract DE-FGOS-92ER40142. l4 Supportedb y the US Departmentof Energy, contract DE-FCOS-85ER250000. l5 Permanenta ddress:U niversitat de Barcelona, 08208 Barcelona, Spain. l6 Supported by the Bundesministeriumf ur Forschung und Tech- Funding Information: nologie, Germany. l7 Supported by the Direction des Sciences de la Matiere, C.E.A. I8 Supported by Fonds zur Fijrderung der wissenschaftlichen Forschung, Austria. lg Permanent address: Kangnung National University, Kangnung, Korea. 2oN ow at Dipartimento di Fisica, Universitl di Milano, Milano, Italy. 21A lso at CERN, 1211 Geneva 23, Switzerland. 22S upported by the US Departmento f Energy, grant DBFG03-92ER40689. 23N ow at University of Athens, 157-71 Athens, Greece. 21N1 ow at Lawrence Berkeley Laboratory, Berkeley, CA 94720, USA. Z Partially supported by Colciencias, Colombia. 26A lso at Istituto di Matematica e Fisica, Universita di Sassari, Sassari, Italy. ” Now at SchusterL aboratory, University of Manchester,M anch-ester Ml3 9PL, UK. 28N ow at Colorado State University, Fort Collins, CO 80523, USA. 2gN ow at University of California at San Diego, La Jolla, CA 92093, USA. so Permanent address: Newman Laboratory, Cornell University, Ithaca, NY 14853, USA.

PY - 1995/9/14

Y1 - 1995/9/14

N2 - Using about 1.5 million hadronic Z decays recorded with the aleph detector, the lifetime of the b baryons has been measured using two independent data samples. From a maximum likelihood fit to the impact parameter distribution of leptons in 519 Λℓ- combinations containing a b baryon sample of 290 decays, the measured b baryon lifetime is τb-baryon = 1.05-0.11 +0.12(stat)±0.09(syst) ps. The lifetime of the Λb 0 baryon from a maximum likelihood fit to the proper time distribution of 58 Λc +ℓ- candidates containing a Λb 0 sample of 44 decays, is τΛb 0 = 1.02-0.18 +0.23(stat) ± 0.06(syst) ps.

AB - Using about 1.5 million hadronic Z decays recorded with the aleph detector, the lifetime of the b baryons has been measured using two independent data samples. From a maximum likelihood fit to the impact parameter distribution of leptons in 519 Λℓ- combinations containing a b baryon sample of 290 decays, the measured b baryon lifetime is τb-baryon = 1.05-0.11 +0.12(stat)±0.09(syst) ps. The lifetime of the Λb 0 baryon from a maximum likelihood fit to the proper time distribution of 58 Λc +ℓ- candidates containing a Λb 0 sample of 44 decays, is τΛb 0 = 1.02-0.18 +0.23(stat) ± 0.06(syst) ps.

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U2 - 10.1016/0370-2693(95)00980-Y

DO - 10.1016/0370-2693(95)00980-Y

M3 - Article

AN - SCOPUS:0000717472

SN - 0370-2693

VL - 357

SP - 685

EP - 698

JO - Physics Letters B

JF - Physics Letters B

IS - 4

ER -

Measurements of the b baryon lifetime

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