Experimental Constraints on Left-Right Symmetric Models from Muon Decay

被引：32

作者：

Bayes, R. ^{[1
,9
]}

Bueno, J. F. ^{[3
]}

Hillairet, A. ^{[1
,9
]}

Davydov, Yu. I. ^{[1
]}

Depommier, P. ^{[5
]}

Faszer, W. ^{[1
]}

Gagliardi, C. A. ^{[7
]}

Gaponenko, A. ^{[2
]}

Gill, D. R. ^{[1
]}

Grossheim, A. ^{[1
]}

Gumplinger, P. ^{[1
]}

Hasinoff, M. D. ^{[3
]}

Henderson, R. S. ^{[1
]}

Hu, J. ^{[1
]}

Koetke, D. D. ^{[8
]}

MacDonald, R. P. ^{[2
]}

Marshall, G. M. ^{[1
]}

Mathie, E. L. ^{[6
]}

Mischke, R. E. ^{[1
]}

Olchanski, K. ^{[1
]}

Olin, A. ^{[1
,9
]}

Openshaw, R. ^{[1
]}

Poutissou, J-M ^{[1
]}

Poutissou, R. ^{[1
]}

Selivanov, V. ^{[4
]}

Sheffer, G. ^{[1
]}

Shin, B. ^{[1
,10
]}

Stanislaus, T. D. S. ^{[8
]}

Tacik, R. ^{[6
]}

Tribble, R. E. ^{[7
]}

机构：

[1] TRIUMF, Vancouver, BC V6T 2A3, Canada

[2] Univ Alberta, Edmonton, AB T6G 2J1, Canada

[3] Univ British Columbia, Vancouver, BC V6T 1Z1, Canada

[4] IV Kurchatov Atom Energy Inst, Moscow 123182, Russia

[5] Univ Montreal, Montreal, PQ H3C 3J7, Canada

[6] Univ Regina, Regina, SK S4S 0A2, Canada

[7] Texas A&M Univ, College Stn, TX 77843 USA

[8] Valparaiso Univ, Valparaiso, IN 46383 USA

[9] Univ Victoria, Victoria, BC, Canada

[10] Univ Saskatchewan, Saskatoon, SK, Canada

来源：

PHYSICAL REVIEW LETTERS | 2011年 / 106卷 / 04期

基金：

加拿大自然科学与工程研究理事会;

关键词：

ASYMMETRY PARAMETER; DRIFT CHAMBERS; PARITY;

D O I：

10.1103/PhysRevLett.106.041804

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The TWIST Collaboration has completed a new measurement of the energy-angle spectrum of positrons from the decay of highly polarized muons. A simultaneous measurement of the muon decay parameters rho, delta, and P-mu(pi)xi tests the standard model in a purely leptonic process and provides improved limits for relevant extensions to the standard model. Specifically, for the generalized left-right symmetric model vertical bar(g(R)/g(L))zeta vertical bar < 0.020 and (g(L)/g(R))m(2) > 578 GeV/c(2), both 90% C.L.

引用

页数：4

共 21 条

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