Measurement of R in e+e- annihilation for {Mathematical expression} between 7.4 and 9.4 GeV

B. Niczyporuk; Z. Jakubowski; G. Nowak; G. Folger; B. Lurz; U. Volland; H. Wegener; J. K. Bienlein; R. Graumann; H. J. Trost; M. Schmitz; F. H. Heimlich; R. Nernst; A. Schwarz; U. Strohbusch; P. Zschorsch; K. W. Chen; A. C. König; D. J. Schotanus; M. Coles; A. Engler; R. W. Kraemer; D. Marlow; F. Messing; C. Rippich; S. Youssef; A. Fridman; G. Alexander; A. Av-Shalom; G. Bella; J. Grunhaus; M. Scheer

doi:10.1007/BF01614421

Measurement of R in e⁺e^- annihilation for {Mathematical expression} between 7.4 and 9.4 GeV

B. Niczyporuk, Z. Jakubowski, G. Nowak, G. Folger, B. Lurz, U. Volland, H. Wegener, J. K. Bienlein, R. Graumann, H. J. Trost, M. Schmitz, F. H. Heimlich, R. Nernst, A. Schwarz, U. Strohbusch, P. Zschorsch, K. W. Chen, A. C. König, D. J. Schotanus, M. ColesA. Engler, R. W. Kraemer, D. Marlow, F. Messing, C. Rippich, S. Youssef, A. Fridman, G. Alexander, A. Av-Shalom, G. Bella, J. Grunhaus, M. Scheer

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Abstract

The ration R=σ(e⁺e^-→hadrons)/σ(e⁺e^-→ μ⁺ μ^-) was measured with the LENA detector at DORIS in a scan between 7.40 and 7.48 GeV and between 8.67 and 9.43 GeV center of mass energies. Corrected for QED radiative effects, R is found to be constant with an average value of R=3.37 ±0.06_stat±0.23_syst. No narrow resonances with Γ_ee(Γ_had/Γ_tot)⊗0.30 keV (95% C.L.) and no steps have been observed. Based on this value of R, revised values for υ(1S) resonance parameters are presented.

Original language	English (US)
Pages (from-to)	299-309
Number of pages	11
Journal	Zeitschrift für Physik C Particles and Fields
Volume	15
Issue number	4
DOIs	https://doi.org/10.1007/BF01614421
State	Published - Dec 1982
Externally published	Yes

All Science Journal Classification (ASJC) codes

Physics and Astronomy (miscellaneous)

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10.1007/BF01614421

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Niczyporuk, B., Jakubowski, Z., Nowak, G., Folger, G., Lurz, B., Volland, U., Wegener, H., Bienlein, J. K., Graumann, R., Trost, H. J., Schmitz, M., Heimlich, F. H., Nernst, R., Schwarz, A., Strohbusch, U., Zschorsch, P., Chen, K. W., König, A. C., Schotanus, D. J., ... Scheer, M. (1982). Measurement of R in e⁺e^- annihilation for {Mathematical expression} between 7.4 and 9.4 GeV. Zeitschrift für Physik C Particles and Fields, 15(4), 299-309. https://doi.org/10.1007/BF01614421

@article{b8f67ba22bb14fa8b966f6615efd8d72,

title = "Measurement of R in e+e- annihilation for {Mathematical expression} between 7.4 and 9.4 GeV",

abstract = "The ration R=σ(e+e-→hadrons)/σ(e+e-→ μ+ μ-) was measured with the LENA detector at DORIS in a scan between 7.40 and 7.48 GeV and between 8.67 and 9.43 GeV center of mass energies. Corrected for QED radiative effects, R is found to be constant with an average value of R=3.37 ±0.06stat±0.23syst. No narrow resonances with Γee(Γhad/Γtot)⊗0.30 keV (95% C.L.) and no steps have been observed. Based on this value of R, revised values for υ(1S) resonance parameters are presented.",

author = "B. Niczyporuk and Z. Jakubowski and G. Nowak and G. Folger and B. Lurz and U. Volland and H. Wegener and Bienlein, {J. K.} and R. Graumann and Trost, {H. J.} and M. Schmitz and Heimlich, {F. H.} and R. Nernst and A. Schwarz and U. Strohbusch and P. Zschorsch and Chen, {K. W.} and K{\"o}nig, {A. C.} and Schotanus, {D. J.} and M. Coles and A. Engler and Kraemer, {R. W.} and D. Marlow and F. Messing and C. Rippich and S. Youssef and A. Fridman and G. Alexander and A. Av-Shalom and G. Bella and J. Grunhaus and M. Scheer",

year = "1982",

month = dec,

doi = "10.1007/BF01614421",

language = "English (US)",

volume = "15",

pages = "299--309",

journal = "Zeitschrift f{\"u}r Physik C Particles and Fields",

issn = "0170-9739",

publisher = "Springer New York",

number = "4",

}

Niczyporuk, B, Jakubowski, Z, Nowak, G, Folger, G, Lurz, B, Volland, U, Wegener, H, Bienlein, JK, Graumann, R, Trost, HJ, Schmitz, M, Heimlich, FH, Nernst, R, Schwarz, A, Strohbusch, U, Zschorsch, P, Chen, KW, König, AC, Schotanus, DJ, Coles, M, Engler, A, Kraemer, RW, Marlow, D, Messing, F, Rippich, C, Youssef, S, Fridman, A, Alexander, G, Av-Shalom, A, Bella, G, Grunhaus, J & Scheer, M 1982, 'Measurement of R in e⁺e^- annihilation for {Mathematical expression} between 7.4 and 9.4 GeV', Zeitschrift für Physik C Particles and Fields, vol. 15, no. 4, pp. 299-309. https://doi.org/10.1007/BF01614421

TY - JOUR

T1 - Measurement of R in e+e- annihilation for {Mathematical expression} between 7.4 and 9.4 GeV

AU - Niczyporuk, B.

AU - Jakubowski, Z.

AU - Nowak, G.

AU - Folger, G.

AU - Lurz, B.

AU - Volland, U.

AU - Wegener, H.

AU - Bienlein, J. K.

AU - Graumann, R.

AU - Trost, H. J.

AU - Schmitz, M.

AU - Heimlich, F. H.

AU - Nernst, R.

AU - Schwarz, A.

AU - Strohbusch, U.

AU - Zschorsch, P.

AU - Chen, K. W.

AU - König, A. C.

AU - Schotanus, D. J.

AU - Coles, M.

AU - Engler, A.

AU - Kraemer, R. W.

AU - Marlow, D.

AU - Messing, F.

AU - Rippich, C.

AU - Youssef, S.

AU - Fridman, A.

AU - Alexander, G.

AU - Av-Shalom, A.

AU - Bella, G.

AU - Grunhaus, J.

AU - Scheer, M.

PY - 1982/12

Y1 - 1982/12

N2 - The ration R=σ(e+e-→hadrons)/σ(e+e-→ μ+ μ-) was measured with the LENA detector at DORIS in a scan between 7.40 and 7.48 GeV and between 8.67 and 9.43 GeV center of mass energies. Corrected for QED radiative effects, R is found to be constant with an average value of R=3.37 ±0.06stat±0.23syst. No narrow resonances with Γee(Γhad/Γtot)⊗0.30 keV (95% C.L.) and no steps have been observed. Based on this value of R, revised values for υ(1S) resonance parameters are presented.

AB - The ration R=σ(e+e-→hadrons)/σ(e+e-→ μ+ μ-) was measured with the LENA detector at DORIS in a scan between 7.40 and 7.48 GeV and between 8.67 and 9.43 GeV center of mass energies. Corrected for QED radiative effects, R is found to be constant with an average value of R=3.37 ±0.06stat±0.23syst. No narrow resonances with Γee(Γhad/Γtot)⊗0.30 keV (95% C.L.) and no steps have been observed. Based on this value of R, revised values for υ(1S) resonance parameters are presented.

UR - http://www.scopus.com/inward/record.url?scp=33749287916&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=33749287916&partnerID=8YFLogxK

U2 - 10.1007/BF01614421

DO - 10.1007/BF01614421

M3 - Article

AN - SCOPUS:33749287916

SN - 0170-9739

VL - 15

SP - 299

EP - 309

JO - Zeitschrift für Physik C Particles and Fields

JF - Zeitschrift für Physik C Particles and Fields

IS - 4

ER -

Measurement of R in e⁺e^- annihilation for {Mathematical expression} between 7.4 and 9.4 GeV

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