Positron-electron pairs produced in heavy-ion collisions

I. Ahmad; Sam M. Austin; B. B. Back; R. R. Betts; F. P. Calaprice; K. C. Chan; A. Chishti; C. M. Conner; R. W. Dunford; J. D. Fox; S. J. Freedman; M. Freer; S. B. Gazes; A. L. Hallin; Th Happ; D. Henderson; N. I. Kaloskamis; E. Kashy; W. Kutschera; J. Last; C. J. Lister; M. Liu; M. R. Maier; D. M. Mercer; D. Mikolas; P. A.A. Perera; M. D. Rhein; D. E. Roa; J. P. Schiffer; T. A. Trainor; P. Wilt; J. S. Winfield; M. Wolanski; F. L.H. Wolfs; A. H. Wuosmaa; A. R. Young; J. E. Yurkon

doi:10.1103/PhysRevC.60.064601

Positron-electron pairs produced in heavy-ion collisions

I. Ahmad, Sam M. Austin, B. B. Back, R. R. Betts, F. P. Calaprice, K. C. Chan, A. Chishti, C. M. Conner, R. W. Dunford, J. D. Fox, S. J. Freedman, M. Freer, S. B. Gazes, A. L. Hallin, Th Happ, D. Henderson, N. I. Kaloskamis, E. Kashy, W. Kutschera, J. LastC. J. Lister, M. Liu, M. R. Maier, D. M. Mercer, D. Mikolas, P. A.A. Perera, M. D. Rhein, D. E. Roa, J. P. Schiffer, T. A. Trainor, P. Wilt, J. S. Winfield, M. Wolanski, F. L.H. Wolfs, A. H. Wuosmaa, A. R. Young, J. E. Yurkon

Physics

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14 Scopus citations

Abstract

The production of positron-electron pairs in collisions of ²³⁸U+²³²Th at 5.95 MeV/nucleon, and of ²³⁸U +¹⁸¹Ta at 5.95, 6.1, and 6.3 MeV/nucleon, has been studied with the APEX spectrometer at Argonne National Laboratory. Several analyses have been performed to search for sharp structures in sum-energy spectra for positron-electron pairs. Such features have been reported in previous experiments. No statistically convincing evidence for such behavior is observed in the present data.

Original language	English (US)
Article number	064601
Pages (from-to)	646011-6460114
Number of pages	5814104
Journal	Physical Review C - Nuclear Physics
Volume	60
Issue number	6
DOIs	https://doi.org/10.1103/PhysRevC.60.064601
State	Published - Dec 1999

All Science Journal Classification (ASJC) codes

Nuclear and High Energy Physics

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10.1103/PhysRevC.60.064601

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Ahmad, I., Austin, S. M., Back, B. B., Betts, R. R., Calaprice, F. P., Chan, K. C., Chishti, A., Conner, C. M., Dunford, R. W., Fox, J. D., Freedman, S. J., Freer, M., Gazes, S. B., Hallin, A. L., Happ, T., Henderson, D., Kaloskamis, N. I., Kashy, E., Kutschera, W., ... Yurkon, J. E. (1999). Positron-electron pairs produced in heavy-ion collisions. Physical Review C - Nuclear Physics, 60(6), 646011-6460114. Article 064601. https://doi.org/10.1103/PhysRevC.60.064601

@article{a4f310759475488aa6b501bb06989f34,

title = "Positron-electron pairs produced in heavy-ion collisions",

abstract = "The production of positron-electron pairs in collisions of 238U+232Th at 5.95 MeV/nucleon, and of 238U +181Ta at 5.95, 6.1, and 6.3 MeV/nucleon, has been studied with the APEX spectrometer at Argonne National Laboratory. Several analyses have been performed to search for sharp structures in sum-energy spectra for positron-electron pairs. Such features have been reported in previous experiments. No statistically convincing evidence for such behavior is observed in the present data.",

author = "I. Ahmad and Austin, {Sam M.} and Back, {B. B.} and Betts, {R. R.} and Calaprice, {F. P.} and Chan, {K. C.} and A. Chishti and Conner, {C. M.} and Dunford, {R. W.} and Fox, {J. D.} and Freedman, {S. J.} and M. Freer and Gazes, {S. B.} and Hallin, {A. L.} and Th Happ and D. Henderson and Kaloskamis, {N. I.} and E. Kashy and W. Kutschera and J. Last and Lister, {C. J.} and M. Liu and Maier, {M. R.} and Mercer, {D. M.} and D. Mikolas and Perera, {P. A.A.} and Rhein, {M. D.} and Roa, {D. E.} and Schiffer, {J. P.} and Trainor, {T. A.} and P. Wilt and Winfield, {J. S.} and M. Wolanski and Wolfs, {F. L.H.} and Wuosmaa, {A. H.} and Young, {A. R.} and Yurkon, {J. E.}",

year = "1999",

month = dec,

doi = "10.1103/PhysRevC.60.064601",

language = "English (US)",

volume = "60",

pages = "646011--6460114",

journal = "Physical Review C - Nuclear Physics",

issn = "0556-2813",

publisher = "American Physical Society",

number = "6",

}

Ahmad, I, Austin, SM, Back, BB, Betts, RR, Calaprice, FP, Chan, KC, Chishti, A, Conner, CM, Dunford, RW, Fox, JD, Freedman, SJ, Freer, M, Gazes, SB, Hallin, AL, Happ, T, Henderson, D, Kaloskamis, NI, Kashy, E, Kutschera, W, Last, J, Lister, CJ, Liu, M, Maier, MR, Mercer, DM, Mikolas, D, Perera, PAA, Rhein, MD, Roa, DE, Schiffer, JP, Trainor, TA, Wilt, P, Winfield, JS, Wolanski, M, Wolfs, FLH, Wuosmaa, AH, Young, AR & Yurkon, JE 1999, 'Positron-electron pairs produced in heavy-ion collisions', Physical Review C - Nuclear Physics, vol. 60, no. 6, 064601, pp. 646011-6460114. https://doi.org/10.1103/PhysRevC.60.064601

TY - JOUR

T1 - Positron-electron pairs produced in heavy-ion collisions

AU - Ahmad, I.

AU - Austin, Sam M.

AU - Back, B. B.

AU - Betts, R. R.

AU - Calaprice, F. P.

AU - Chan, K. C.

AU - Chishti, A.

AU - Conner, C. M.

AU - Dunford, R. W.

AU - Fox, J. D.

AU - Freedman, S. J.

AU - Freer, M.

AU - Gazes, S. B.

AU - Hallin, A. L.

AU - Happ, Th

AU - Henderson, D.

AU - Kaloskamis, N. I.

AU - Kashy, E.

AU - Kutschera, W.

AU - Last, J.

AU - Lister, C. J.

AU - Liu, M.

AU - Maier, M. R.

AU - Mercer, D. M.

AU - Mikolas, D.

AU - Perera, P. A.A.

AU - Rhein, M. D.

AU - Roa, D. E.

AU - Schiffer, J. P.

AU - Trainor, T. A.

AU - Wilt, P.

AU - Winfield, J. S.

AU - Wolanski, M.

AU - Wolfs, F. L.H.

AU - Wuosmaa, A. H.

AU - Young, A. R.

AU - Yurkon, J. E.

PY - 1999/12

Y1 - 1999/12

N2 - The production of positron-electron pairs in collisions of 238U+232Th at 5.95 MeV/nucleon, and of 238U +181Ta at 5.95, 6.1, and 6.3 MeV/nucleon, has been studied with the APEX spectrometer at Argonne National Laboratory. Several analyses have been performed to search for sharp structures in sum-energy spectra for positron-electron pairs. Such features have been reported in previous experiments. No statistically convincing evidence for such behavior is observed in the present data.

AB - The production of positron-electron pairs in collisions of 238U+232Th at 5.95 MeV/nucleon, and of 238U +181Ta at 5.95, 6.1, and 6.3 MeV/nucleon, has been studied with the APEX spectrometer at Argonne National Laboratory. Several analyses have been performed to search for sharp structures in sum-energy spectra for positron-electron pairs. Such features have been reported in previous experiments. No statistically convincing evidence for such behavior is observed in the present data.

UR - http://www.scopus.com/inward/record.url?scp=13044292633&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=13044292633&partnerID=8YFLogxK

U2 - 10.1103/PhysRevC.60.064601

DO - 10.1103/PhysRevC.60.064601

M3 - Article

AN - SCOPUS:13044292633

SN - 0556-2813

VL - 60

SP - 646011

EP - 6460114

JO - Physical Review C - Nuclear Physics

JF - Physical Review C - Nuclear Physics

IS - 6

M1 - 064601

ER -

Positron-electron pairs produced in heavy-ion collisions

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