Author/Authors :
Barnett، نويسنده , , I.C. and Bee، نويسنده , , C. and Bodek، نويسنده , , K. and Budzanowski، نويسنده , , A. and Danneberg، نويسنده , , N. and Eberhardt، نويسنده , , P. and Fetscher، نويسنده , , W. and Hilbes، نويسنده , , C. and Janousch، نويسنده , , M. and Jarczyk، نويسنده , , L. and Kirch، نويسنده , , K. and Kistryn، نويسنده , , S. and Klement، نويسنده , , J. and K?hler، نويسنده , , K. and Kozela، نويسنده , , A. and Lang، نويسنده , , J. and L، نويسنده ,
Abstract :
An apparatus for the measurement of the two transverse polarization components PT1 and PT2 of the positrons from polarized μ+ decay is described. It makes use of a stroboscopic method which cancels many systematic asymmetries and allows one to use muon stop rates in the order of up to 108 s−1. The experiment aims at an accuracy of ΔPT1=ΔPT2=3×10−3 and by that at an improvement of the existing limit by nearly one order of magnitude. With these results one will obtain an improved model-independent value for the Fermi coupling constant GF and more stringent limits to possible violations of time reversal invariance in a purely leptonic reaction.
Keywords :
Polarized beams and targets , Magnetic components and techniques , Tracking detectors , DATA ACQUISITION , Cluster recognition , Scintillation detectors
