Measurement of the Michel parameter {rho} in normal muon decay
- Texas A&M University, College Station, Texas 77843 (United States)
- Los Alamos National Laboratory, Los Alamos, New Mexico 87545 (United States)
- University of Houston, 4800 Calhoun Road, Houston, Texas 77004 (United States)
- Femilab, P.O. Box 500, Batavia, Illinois 60510 (United States)
- Virginia Polytechnc Institute & State University, Blacksburg, VA 24061 (United States)
- Stanford University, Stanford, California 94305 (United States)
- Indiana University, Bloomington, Indiana 47405 (United States)
- Valparaiso University, Valparaiso, Indiana 46383 (United States)
A new measurement of the Michel parameter {rho} in normal muon decay has been performed using the MEGA positron spectrometer. Over 500 million triggers were recorded and the data are currently being analyzed. The previous result has a precision on the value of {rho}{plus_minus}0.0026. The present experiment expects to improve the precision to {plus_minus}0.0008 or better. The improved result will be a precise test of the standard model of electroweak interactions for a purely leptonic process. It also will provide a better constraint on the {ital W}{sub {ital R}}{minus}{ital W}{sub {ital L}} mixing angle in the left-right symmetric models. {copyright} {ital 1995} {ital American} {ital Institute} {ital of} {ital Physics}.
- Sponsoring Organization:
- USDOE
- OSTI ID:
- 253241
- Report Number(s):
- CONF-940514-; ISSN 0094-243X; TRN: 96:015104
- Journal Information:
- AIP Conference Proceedings, Vol. 338, Issue 1; Conference: 5. conference on intersections between particle and nuclear physics, St. Petersburg, FL (United States), 31 May - 6 Jun 1994; Other Information: PBD: 10 Jul 1995
- Country of Publication:
- United States
- Language:
- English
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