An apparatus for the measurement of the transverse polarization of positrons from the decay of polarized muons

An apparatus for the measurement of the two transverse polarization components P T 1 and P T 2 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 10 8 s −1...

Full description

Saved in:

Bibliographic Details
Published in:	Nuclear instruments & methods in physics research. Section A, Accelerators, spectrometers, detectors and associated equipment Vol. 455; no. 2; pp. 329 - 345
Main Authors:	Barnett, I.C., Bee, C., Bodek, K., Budzanowski, A., Danneberg, N., Eberhardt, P., Fetscher, W., Hilbes, C., Janousch, M., Jarczyk, L., Kirch, K., Kistryn, S., Klement, J., Köhler, K., Kozela, A., Lang, J., Llosa, G., Markiewicz, M., Morelle, X., Naviliat, O., Schweizer, T., Smyrski, J., Sromicki, J., Stephan, E., Strzałkowski, A., Szeker, K., Zejma, J.
Format:	Journal Article
Language:	English
Published:	Elsevier B.V 01-12-2000 Elsevier
Subjects:	Cluster recognition Data acquisition Magnetic components and techniques Nuclear Experiment Physics Polarized beams and targets Scintillation detectors Tracking detectors 29.40.Mc Cluster recognition Data acquisition Polarized beams and targets Tracking detectors 29.25.Pj Scintillation detectors Magnetic components and techniques 29.40.Gx 84.30.Sk
Online Access:	Get full text
Tags:	Add Tag No Tags, Be the first to tag this record!

Description
Summary:	An apparatus for the measurement of the two transverse polarization components P T 1 and P T 2 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 10 8 s −1 . The experiment aims at an accuracy of Δ P T 1 =Δ P T 2 =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 G F and more stringent limits to possible violations of time reversal invariance in a purely leptonic reaction.
ISSN:	0168-9002 1872-9576
DOI:	10.1016/S0168-9002(00)00525-8