Search for right-handed currents in muon decay

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Limits are reported on right-handed currents, based on precise measurement of the e/sup +/ spetrum end point in ..mu../sup +/ decay. Highly polarized muons from the TRIUMF surface beam were stopped in metal foils within a 1.1 T spin-holding longitudinal field or a 70 G spin-precessing field. For the spin-held data, the V-A rate vanishes in the beam direction at the end point. Measurement of this sets the 90% confidence limits xi P/sub mu/delta/rho > 0.9959 and M(W/sub R/) > 380 GeV, where W/sub R/ is the possible right-handed gauge boson. The ..mu.. SR signal amplitude of the spin-precessed data ... continued below

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Pages: 35

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Stoker, D.P. September 1, 1983.

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Description

Limits are reported on right-handed currents, based on precise measurement of the e/sup +/ spetrum end point in ..mu../sup +/ decay. Highly polarized muons from the TRIUMF surface beam were stopped in metal foils within a 1.1 T spin-holding longitudinal field or a 70 G spin-precessing field. For the spin-held data, the V-A rate vanishes in the beam direction at the end point. Measurement of this sets the 90% confidence limits xi P/sub mu/delta/rho > 0.9959 and M(W/sub R/) > 380 GeV, where W/sub R/ is the possible right-handed gauge boson. The ..mu.. SR signal amplitude of the spin-precessed data independently sets the limits xi P/sub ..mu../delta/rho > 0.9918 and M(W/sub R/) > 320 GeV. Limits on non-(V-A) currents, familons, and composite leptons are also presented. 27 references.

Physical Description

Pages: 35

Notes

NTIS, PC A03/MF A01.

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  • 11. SLAC summer institute conference on particle physics - dynamics and spectroscopy at high energy, Stanford, CA, USA, 18 Jul 1983

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  • Other: DE84002901
  • Report No.: LBL-16736
  • Report No.: CONF-8307109-3
  • Grant Number: AC03-76SF00098
  • DOI: 10.2172/5336137 | External Link
  • Office of Scientific & Technical Information Report Number: 5336137
  • Archival Resource Key: ark:/67531/metadc1072359

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Reports, articles and other documents harvested from the Office of Scientific and Technical Information.

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  • September 1, 1983

Added to The UNT Digital Library

  • Feb. 4, 2018, 10:51 a.m.

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  • April 25, 2018, 1:53 p.m.

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Stoker, D.P. Search for right-handed currents in muon decay, report, September 1, 1983; [Berkeley,] California. (digital.library.unt.edu/ark:/67531/metadc1072359/: accessed November 15, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.