New determination of the Michel parameter in tau decay

S. Behrends; T. Gentile; Jan M. Guida; Joan A. Guida; F. Morrow; R. Poling; C. Rosenfeld; E. H. Thorndike; P. Tipton; D. Besson; J. Green; R. Namjoshi; F. Sannes; P. Skubic; R. Stone; D. Bartoletto; A. Chen; L. Garren; M. Goldberg; N. Horwitz; A. Jawahery; P. Lubrano; G. C. Moneti; C. G. Trahern; H. Van Hecke; S. E. Csorna; M. D. Mestayer; R. S. Panvini; G. B. Word; Xia Yi; M. S. Alam; A. Bean; T. Ferguson; P. Avery; C. Bebek; K. Berkelman; D. G. Cassel; T. Copie; R. DeSalvo; J. W. DeWire; R. Ehrlich; R. S. Galik; M. G.D. Gilchriese; B. Gittelman; S. W. Gray; A. M. Halling; D. L. Hartill; B. K. Heltsley; S. Holzner; M. Ito; J. Kandaswamy; D. L. Kreinick; Y. Kubota; N. B. Mistry; E. Nordberg; M. Ogg; D. Peterson; D. Perticone; M. Pisharody; K. Read; A. Silverman; P. C. Stein; S. Stone; Xu Kezun; A. J. Sadoff; T. Bowcock; R. T. Giles; J. Hassard; K. Kinoshita; F. M. Pipkin; Richard Wilson; P. Haas; M. Hempstead; T. Jensen; H. Kagan; R. Kass

doi:10.1103/PhysRevD.32.2468

New determination of the Michel parameter in tau decay

S. Behrends, T. Gentile, Jan M. Guida, Joan A. Guida, F. Morrow, R. Poling, C. Rosenfeld, E. H. Thorndike, P. Tipton, D. Besson, J. Green, R. Namjoshi, F. Sannes, P. Skubic, R. Stone, D. Bartoletto, A. Chen, L. Garren, M. Goldberg, N. HorwitzA. Jawahery, P. Lubrano, G. C. Moneti, C. G. Trahern, H. Van Hecke, S. E. Csorna, M. D. Mestayer, R. S. Panvini, G. B. Word, Xia Yi, M. S. Alam, A. Bean, T. Ferguson, P. Avery, C. Bebek, K. Berkelman, D. G. Cassel, T. Copie, R. DeSalvo, J. W. DeWire, R. Ehrlich, R. S. Galik, M. G.D. Gilchriese, B. Gittelman, S. W. Gray, A. M. Halling, D. L. Hartill, B. K. Heltsley, S. Holzner, M. Ito, J. Kandaswamy, D. L. Kreinick, Y. Kubota, N. B. Mistry, E. Nordberg, M. Ogg, D. Peterson, D. Perticone, M. Pisharody, K. Read, A. Silverman, P. C. Stein, S. Stone, Xu Kezun, A. J. Sadoff, T. Bowcock, R. T. Giles, J. Hassard, K. Kinoshita, F. M. Pipkin, Richard Wilson, P. Haas, M. Hempstead, T. Jensen, H. Kagan, R. Kass

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Abstract

We have used the leptonic decays of the tau to determine the Lorentz structure of its decay vertex. We find the Michel parameter to be 0.710.090.03, which is consistent with V-A (=0.75) and inconsistent with V+A. This measurement represents the first such analysis using muons in the final state.

Original language	English (US)
Pages (from-to)	2468-2470
Number of pages	3
Journal	Physical Review D
Volume	32
Issue number	9
DOIs	https://doi.org/10.1103/PhysRevD.32.2468
State	Published - 1985
Externally published	Yes

ASJC Scopus subject areas

Nuclear and High Energy Physics

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Behrends, S., Gentile, T., Guida, J. M., Guida, J. A., Morrow, F., Poling, R., Rosenfeld, C., Thorndike, E. H., Tipton, P., Besson, D., Green, J., Namjoshi, R., Sannes, F., Skubic, P., Stone, R., Bartoletto, D., Chen, A., Garren, L., Goldberg, M., ... Kass, R. (1985). New determination of the Michel parameter in tau decay. Physical Review D, 32(9), 2468-2470. https://doi.org/10.1103/PhysRevD.32.2468

Behrends, S, Gentile, T, Guida, JM, Guida, JA, Morrow, F, Poling, R, Rosenfeld, C, Thorndike, EH, Tipton, P, Besson, D, Green, J, Namjoshi, R, Sannes, F, Skubic, P, Stone, R, Bartoletto, D, Chen, A, Garren, L, Goldberg, M, Horwitz, N, Jawahery, A, Lubrano, P, Moneti, GC, Trahern, CG, Van Hecke, H, Csorna, SE, Mestayer, MD, Panvini, RS, Word, GB, Yi, X, Alam, MS, Bean, A, Ferguson, T, Avery, P, Bebek, C, Berkelman, K, Cassel, DG, Copie, T, DeSalvo, R, DeWire, JW, Ehrlich, R, Galik, RS, Gilchriese, MGD, Gittelman, B, Gray, SW, Halling, AM, Hartill, DL, Heltsley, BK, Holzner, S, Ito, M, Kandaswamy, J, Kreinick, DL, Kubota, Y, Mistry, NB, Nordberg, E, Ogg, M, Peterson, D, Perticone, D, Pisharody, M, Read, K, Silverman, A, Stein, PC, Stone, S, Kezun, X, Sadoff, AJ, Bowcock, T, Giles, RT, Hassard, J, Kinoshita, K, Pipkin, FM, Wilson, R, Haas, P, Hempstead, M, Jensen, T, Kagan, H & Kass, R 1985, 'New determination of the Michel parameter in tau decay', Physical Review D, vol. 32, no. 9, pp. 2468-2470. https://doi.org/10.1103/PhysRevD.32.2468

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title = "New determination of the Michel parameter in tau decay",

abstract = "We have used the leptonic decays of the tau to determine the Lorentz structure of its decay vertex. We find the Michel parameter to be 0.710.090.03, which is consistent with V-A (=0.75) and inconsistent with V+A. This measurement represents the first such analysis using muons in the final state.",

author = "S. Behrends and T. Gentile and Guida, {Jan M.} and Guida, {Joan A.} and F. Morrow and R. Poling and C. Rosenfeld and Thorndike, {E. H.} and P. Tipton and D. Besson and J. Green and R. Namjoshi and F. Sannes and P. Skubic and R. Stone and D. Bartoletto and A. Chen and L. Garren and M. Goldberg and N. Horwitz and A. Jawahery and P. Lubrano and Moneti, {G. C.} and Trahern, {C. G.} and {Van Hecke}, H. and Csorna, {S. E.} and Mestayer, {M. D.} and Panvini, {R. S.} and Word, {G. B.} and Xia Yi and Alam, {M. S.} and A. Bean and T. Ferguson and P. Avery and C. Bebek and K. Berkelman and Cassel, {D. G.} and T. Copie and R. DeSalvo and DeWire, {J. W.} and R. Ehrlich and Galik, {R. S.} and Gilchriese, {M. G.D.} and B. Gittelman and Gray, {S. W.} and Halling, {A. M.} and Hartill, {D. L.} and Heltsley, {B. K.} and S. Holzner and M. Ito and J. Kandaswamy and Kreinick, {D. L.} and Y. Kubota and Mistry, {N. B.} and E. Nordberg and M. Ogg and D. Peterson and D. Perticone and M. Pisharody and K. Read and A. Silverman and Stein, {P. C.} and S. Stone and Xu Kezun and Sadoff, {A. J.} and T. Bowcock and Giles, {R. T.} and J. Hassard and K. Kinoshita and Pipkin, {F. M.} and Richard Wilson and P. Haas and M. Hempstead and T. Jensen and H. Kagan and R. Kass",

year = "1985",

doi = "10.1103/PhysRevD.32.2468",

language = "English (US)",

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pages = "2468--2470",

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T1 - New determination of the Michel parameter in tau decay

AU - Behrends, S.

AU - Gentile, T.

AU - Guida, Jan M.

AU - Guida, Joan A.

AU - Morrow, F.

AU - Poling, R.

AU - Rosenfeld, C.

AU - Thorndike, E. H.

AU - Tipton, P.

AU - Besson, D.

AU - Green, J.

AU - Namjoshi, R.

AU - Sannes, F.

AU - Skubic, P.

AU - Stone, R.

AU - Bartoletto, D.

AU - Chen, A.

AU - Garren, L.

AU - Goldberg, M.

AU - Horwitz, N.

AU - Jawahery, A.

AU - Lubrano, P.

AU - Moneti, G. C.

AU - Trahern, C. G.

AU - Van Hecke, H.

AU - Csorna, S. E.

AU - Mestayer, M. D.

AU - Panvini, R. S.

AU - Word, G. B.

AU - Yi, Xia

AU - Alam, M. S.

AU - Bean, A.

AU - Ferguson, T.

AU - Avery, P.

AU - Bebek, C.

AU - Berkelman, K.

AU - Cassel, D. G.

AU - Copie, T.

AU - DeSalvo, R.

AU - DeWire, J. W.

AU - Ehrlich, R.

AU - Galik, R. S.

AU - Gilchriese, M. G.D.

AU - Gittelman, B.

AU - Gray, S. W.

AU - Halling, A. M.

AU - Hartill, D. L.

AU - Heltsley, B. K.

AU - Holzner, S.

AU - Ito, M.

AU - Kandaswamy, J.

AU - Kreinick, D. L.

AU - Kubota, Y.

AU - Mistry, N. B.

AU - Nordberg, E.

AU - Ogg, M.

AU - Peterson, D.

AU - Perticone, D.

AU - Pisharody, M.

AU - Read, K.

AU - Silverman, A.

AU - Stein, P. C.

AU - Stone, S.

AU - Kezun, Xu

AU - Sadoff, A. J.

AU - Bowcock, T.

AU - Giles, R. T.

AU - Hassard, J.

AU - Kinoshita, K.

AU - Pipkin, F. M.

AU - Wilson, Richard

AU - Haas, P.

AU - Hempstead, M.

AU - Jensen, T.

AU - Kagan, H.

AU - Kass, R.

PY - 1985

Y1 - 1985

N2 - We have used the leptonic decays of the tau to determine the Lorentz structure of its decay vertex. We find the Michel parameter to be 0.710.090.03, which is consistent with V-A (=0.75) and inconsistent with V+A. This measurement represents the first such analysis using muons in the final state.

AB - We have used the leptonic decays of the tau to determine the Lorentz structure of its decay vertex. We find the Michel parameter to be 0.710.090.03, which is consistent with V-A (=0.75) and inconsistent with V+A. This measurement represents the first such analysis using muons in the final state.

UR - http://www.scopus.com/inward/record.url?scp=4244209694&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=4244209694&partnerID=8YFLogxK

U2 - 10.1103/PhysRevD.32.2468

DO - 10.1103/PhysRevD.32.2468

M3 - Article

AN - SCOPUS:4244209694

SN - 0556-2821

VL - 32

SP - 2468

EP - 2470

JO - Physical Review D

JF - Physical Review D

IS - 9

ER -

New determination of the Michel parameter in tau decay

Abstract

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