Apparatus for a search for T violating muon polarization in stopped kaon decays
Feb, 200357 pages
Published in:
- Nucl.Instrum.Meth.A 506 (2003) 60-91
e-Print:
- hep-ex/0302001 [hep-ex]
Report number:
- INR-1094-2003,
- KEK-PREPRINT-2002-130,
- TRI-PP-03-01,
- PREPRINT-INR-1094-2003
Experiments:
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Abstract: (arXiv)
The detector built at KEK to search for T-violating transverse muon polarization in K+ --> pi0 mu+ nu (Kmu3) decay of stopped kaons is described. Sensitivity to the transverse polarization component is obtained from reconstruction of the decay plane by tracking the mu+ through a toroidal spectrometer and detecting the pi0 in a segmented CsI(Tl) photon calorimeter. The muon polarization was obtained from the decay positron asymmetry of muons stopped in a polarimeter. The detector included features which minimized systematic errors while maintaining high acceptance.Note:
- 56 pages, 30 figures, submitted to NIM
- K+: semileptonic decay
- at rest
- muon+: polarization
- polarization: transverse
- time reversal: violation
- beam transport
- beam monitoring
- scintillation counter: hodoscope
- magnetic spectrometer: superconductivity
- proportional chamber
References(34)
Figures(31)