Measurement of the Michel rho parameter in direct muon decay

Journal Article · Thu May 01 00:00:00 EDT 1997 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.54303· OSTI ID:679109

Piilonen, Leo; Haim, D; Zhang, Y ^[1]; Bolton, R D; Cooper, M D; Foreman, W; Harrison, R; Hart, G; Hogan, G E; Kozlowski, T; Kroupa, M A; Mischke, R E; Pillai, C; Schilling, S; Whitehouse, D ^[2]; Dzemidzic, M; Hungerford, E V; Lan, K; Mayes, B W; Pinsky, L ; Liu, F; Tribble, R E; Tu, X L; Van Ausdeln, L A; Stantz, K M; Szymanski, J J ^[3]; Manweiler, R; Stanislaus, T D ^[4]

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1. Virginia Polytechnic Institute and State University, Blacksburg, Virginia24061 (United States)
2. Los Alamos National Laboratory, Los Alamos, New Mexico87545 (United States)
3. Indiana University, Bloomington, Indiana47405 (United States)
4. Valparaiso University, Valparaiso, Indiana46383 (United States)

We report on the status of LAMPF experiment E-1240 to measure the Michel {rho} parameter in direct muon decay. This experiment ran in 1993, and the data are currently being analyzed. The expected precision on the {rho} parameter is {plus_minus}0.0008. This result will provide better constraints on new physics, particularly on the charged vector bosons{close_quote} mixing angle {zeta} in the manifestly left-right symmetric extension of the Standard Model. {copyright} {ital 1997 American Institute of Physics.}

• Sponsoring Organization: USDOE
• OSTI ID: 679109
• Report Number(s): CONF-970564-; ISSN 0094-243X; TRN: 99:009338
• Journal Information: AIP Conference Proceedings, Vol. 412, Issue 1; Conference: 6. conference on the intersections of particle and nuclear physics, Big Sky, MT (United States), 25 May - 2 Jun 1997; Other Information: PBD: May 1997
• Country of Publication: United States
• Language: English

Related Subjects

66 PHYSICS
MUONS PLUS
LEPTONIC DECAY
POSITRONS
NEUTRINOS
ANTINEUTRINOS
DECAY AMPLITUDES
CONFIGURATION MIXING