New results on the reaction e+e-→μ+μ- at s =29 GeV

M. Derrick; E. Fernandez; R. Fries; L. Hyman; P. Kooijman; J. S. Loos; B. Musgrave; L. E. Price; J. Schlereth; K. Sugano; J. M. Weiss; D. E. Wood; S. Ahlen; G. Baranko; P. Baringer; D. Blockus; B. Brabson; M. Daigo; G. E. Forden; S. W. Gray; J. P. Guillaud; C. Jung; H. Neal; H. Ogren; D. R. Rust; M. Valdata-Nappi; C. Akerlof; J. Chapman; D. Errede; N. Harnew; P. Kesten; S. Kooijman; D. I. Meyer; D. Nitz; D. Rubin; A. A. Seidl; R. Thun; T. Trinko; M. Willutzky; I. Beltrami; R. Debonte; K. K. Gan; D. Koltick; F. J. Loeffler; U. Mallik; R. L. McIlwain; D. H. Miller; C. R. Ng; P. P. Ong; L. K. Rangan; E. I. Shibata; R. Stevens; R. J. Wilson; B. Cork; L. Keller; J. Va'Vra

doi:10.1103/PhysRevD.31.2352

New results on the reaction e+e-→μ+μ- at s =29 GeV

M. Derrick
, E. Fernandez
, R. Fries
, L. Hyman
, P. Kooijman
, J. S. Loos
, B. Musgrave
, L. E. Price
, J. Schlereth
, K. Sugano
, J. M. Weiss
, D. E. Wood
, S. Ahlen
, G. Baranko
, P. Baringer
, D. Blockus
, B. Brabson
, M. Daigo
, G. E. Forden
, S. W. Gray

J. P. Guillaud, C. Jung, H. Neal, H. Ogren, D. R. Rust, M. Valdata-Nappi, C. Akerlof, J. Chapman, D. Errede, N. Harnew, P. Kesten, S. Kooijman, D. I. Meyer, D. Nitz, D. Rubin, A. A. Seidl, R. Thun, T. Trinko, M. Willutzky, I. Beltrami, R. Debonte, K. K. Gan, D. Koltick, F. J. Loeffler, U. Mallik, R. L. McIlwain, D. H. Miller, C. R. Ng, P. P. Ong, L. K. Rangan, E. I. Shibata, R. Stevens, R. J. Wilson, B. Cork, L. Keller, J. Va'Vra

Physics and Astronomy

Stony Brook University

Argonne National Laboratory
Indiana University Bloomington
University of Michigan, Ann Arbor
Purdue University
Lawrence Berkeley National Laboratory
SLAC National Accelerator Laboratory

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

39 Scopus citations

Abstract

We have measured the process e+e-→μ+μ- at s =29 GeV using the High Resolution Spectrometer at SLAC PEP. The forward-backward charge asymmetry is Aμμ=-(4.9±1.5±0.5)% based on 5057 events. A subsample of 3488 μ+μ- events in the angular range cosθ<0.55 gives a cross-section ratio of Rμμ=0.990±0.017±0.030. The resulting couplings of the weak neutral current are gaegaμ=0.208±0.064± 0.021 and gvegvμ=0.027 ±0.051±0.089. The QED cutoff parameters are Λ+>170 GeV and Λ->146 GeV at 95% C.L.

Original language	English
Pages (from-to)	2352-2355
Number of pages	4
Journal	Physical Review D
Volume	31
Issue number	9
DOIs	https://doi.org/10.1103/PhysRevD.31.2352
State	Published - 1985

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Derrick, M., Fernandez, E., Fries, R., Hyman, L., Kooijman, P., Loos, J. S., Musgrave, B., Price, L. E., Schlereth, J., Sugano, K., Weiss, J. M., Wood, D. E., Ahlen, S., Baranko, G., Baringer, P., Blockus, D., Brabson, B., Daigo, M., Forden, G. E., ... Va'Vra, J. (1985). New results on the reaction e+e-→μ+μ- at s =29 GeV. Physical Review D, 31(9), 2352-2355. https://doi.org/10.1103/PhysRevD.31.2352

@article{08a915dec2df49998b19211a58e43316,

title = "New results on the reaction e+e-→μ+μ- at s =29 GeV",

abstract = "We have measured the process e+e-→μ+μ- at s =29 GeV using the High Resolution Spectrometer at SLAC PEP. The forward-backward charge asymmetry is Aμμ=-(4.9±1.5±0.5)\% based on 5057 events. A subsample of 3488 μ+μ- events in the angular range cosθ<0.55 gives a cross-section ratio of Rμμ=0.990±0.017±0.030. The resulting couplings of the weak neutral current are gaegaμ=0.208±0.064± 0.021 and gvegvμ=0.027 ±0.051±0.089. The QED cutoff parameters are Λ+>170 GeV and Λ->146 GeV at 95\% C.L.",

author = "M. Derrick and E. Fernandez and R. Fries and L. Hyman and P. Kooijman and Loos, \{J. S.\} and B. Musgrave and Price, \{L. E.\} and J. Schlereth and K. Sugano and Weiss, \{J. M.\} and Wood, \{D. E.\} and S. Ahlen and G. Baranko and P. Baringer and D. Blockus and B. Brabson and M. Daigo and Forden, \{G. E.\} and Gray, \{S. W.\} and Guillaud, \{J. P.\} and C. Jung and H. Neal and H. Ogren and Rust, \{D. R.\} and M. Valdata-Nappi and C. Akerlof and J. Chapman and D. Errede and N. Harnew and P. Kesten and S. Kooijman and Meyer, \{D. I.\} and D. Nitz and D. Rubin and Seidl, \{A. A.\} and R. Thun and T. Trinko and M. Willutzky and I. Beltrami and R. Debonte and Gan, \{K. K.\} and D. Koltick and Loeffler, \{F. J.\} and U. Mallik and McIlwain, \{R. L.\} and Miller, \{D. H.\} and Ng, \{C. R.\} and Ong, \{P. P.\} and Rangan, \{L. K.\} and Shibata, \{E. I.\} and R. Stevens and Wilson, \{R. J.\} and B. Cork and L. Keller and J. Va'Vra",

year = "1985",

doi = "10.1103/PhysRevD.31.2352",

language = "English",

volume = "31",

pages = "2352--2355",

journal = "Physical Review D",

issn = "0556-2821",

number = "9",

}

Derrick, M, Fernandez, E, Fries, R, Hyman, L, Kooijman, P, Loos, JS, Musgrave, B, Price, LE, Schlereth, J, Sugano, K, Weiss, JM, Wood, DE, Ahlen, S, Baranko, G, Baringer, P, Blockus, D, Brabson, B, Daigo, M, Forden, GE, Gray, SW, Guillaud, JP, Jung, C, Neal, H, Ogren, H, Rust, DR, Valdata-Nappi, M, Akerlof, C, Chapman, J, Errede, D, Harnew, N, Kesten, P, Kooijman, S, Meyer, DI, Nitz, D, Rubin, D, Seidl, AA, Thun, R, Trinko, T, Willutzky, M, Beltrami, I, Debonte, R, Gan, KK, Koltick, D, Loeffler, FJ, Mallik, U, McIlwain, RL, Miller, DH, Ng, CR, Ong, PP, Rangan, LK, Shibata, EI, Stevens, R, Wilson, RJ, Cork, B, Keller, L & Va'Vra, J 1985, 'New results on the reaction e+e-→μ+μ- at s =29 GeV', Physical Review D, vol. 31, no. 9, pp. 2352-2355. https://doi.org/10.1103/PhysRevD.31.2352

TY - JOUR

T1 - New results on the reaction e+e-→μ+μ- at s =29 GeV

AU - Derrick, M.

AU - Fernandez, E.

AU - Fries, R.

AU - Hyman, L.

AU - Kooijman, P.

AU - Loos, J. S.

AU - Musgrave, B.

AU - Price, L. E.

AU - Schlereth, J.

AU - Sugano, K.

AU - Weiss, J. M.

AU - Wood, D. E.

AU - Ahlen, S.

AU - Baranko, G.

AU - Baringer, P.

AU - Blockus, D.

AU - Brabson, B.

AU - Daigo, M.

AU - Forden, G. E.

AU - Gray, S. W.

AU - Guillaud, J. P.

AU - Jung, C.

AU - Neal, H.

AU - Ogren, H.

AU - Rust, D. R.

AU - Valdata-Nappi, M.

AU - Akerlof, C.

AU - Chapman, J.

AU - Errede, D.

AU - Harnew, N.

AU - Kesten, P.

AU - Kooijman, S.

AU - Meyer, D. I.

AU - Nitz, D.

AU - Rubin, D.

AU - Seidl, A. A.

AU - Thun, R.

AU - Trinko, T.

AU - Willutzky, M.

AU - Beltrami, I.

AU - Debonte, R.

AU - Gan, K. K.

AU - Koltick, D.

AU - Loeffler, F. J.

AU - Mallik, U.

AU - McIlwain, R. L.

AU - Miller, D. H.

AU - Ng, C. R.

AU - Ong, P. P.

AU - Rangan, L. K.

AU - Shibata, E. I.

AU - Stevens, R.

AU - Wilson, R. J.

AU - Cork, B.

AU - Keller, L.

AU - Va'Vra, J.

PY - 1985

Y1 - 1985

N2 - We have measured the process e+e-→μ+μ- at s =29 GeV using the High Resolution Spectrometer at SLAC PEP. The forward-backward charge asymmetry is Aμμ=-(4.9±1.5±0.5)% based on 5057 events. A subsample of 3488 μ+μ- events in the angular range cosθ<0.55 gives a cross-section ratio of Rμμ=0.990±0.017±0.030. The resulting couplings of the weak neutral current are gaegaμ=0.208±0.064± 0.021 and gvegvμ=0.027 ±0.051±0.089. The QED cutoff parameters are Λ+>170 GeV and Λ->146 GeV at 95% C.L.

AB - We have measured the process e+e-→μ+μ- at s =29 GeV using the High Resolution Spectrometer at SLAC PEP. The forward-backward charge asymmetry is Aμμ=-(4.9±1.5±0.5)% based on 5057 events. A subsample of 3488 μ+μ- events in the angular range cosθ<0.55 gives a cross-section ratio of Rμμ=0.990±0.017±0.030. The resulting couplings of the weak neutral current are gaegaμ=0.208±0.064± 0.021 and gvegvμ=0.027 ±0.051±0.089. The QED cutoff parameters are Λ+>170 GeV and Λ->146 GeV at 95% C.L.

UR - https://www.scopus.com/pages/publications/0011666295

U2 - 10.1103/PhysRevD.31.2352

DO - 10.1103/PhysRevD.31.2352

M3 - Article

SN - 0556-2821

VL - 31

SP - 2352

EP - 2355

JO - Physical Review D

JF - Physical Review D

IS - 9

ER -

New results on the reaction e+e-→μ+μ- at s =29 GeV

Abstract

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