Measurement of Pmuxi in Polarized Muon Decay
TWIST Collaboration, B. Jamieson, R. Bayes, Yu. I. Davydov, P. Depommier, J. Doornbos, W. Faszer, M. C. Fujiwara, C. A. Gagliardi, A. Gaponenko, D. R. Gill, P. Gumplinger, M. D. Hasinoff, R. S. Henderson, J. Hu, P. Kitching, D. D. Koetke, J. A. Macdonald, R. P. MacDonald, G. M. Marshall, E. L. Mathie, R. E. Mischke, J. R. Musser, M. Nozar, K. Olchanski, A. Olin, R. Openshaw, T. A. Porcelli, J. -M. Poutissou, R. Poutissou, M. A. Quraan, N. L. Rodning, V. Selivanov, G. Sheffer, B. Shin, T. D. S. Stanislaus, R. Tacik, V. D. Torokhov, R. E. Tribble, M. A. Vasiliev
Abstract
The quantity Pmupixi, where xi is one of the muon decay parameters and Pμπ is the degree of muon polarization in pion decay, has been measured. The value Pmupixi = 1.0003 +- 0.0006 stat. +- 0.0038 syst. was obtained. This result agrees with previous measurements but is over a factor of two more precise. It also agrees with the Standard Model prediction for Pmupixi and thus leads to restrictions on left-right symmetric models.
Create a lesson
Related papers
Accelerating Optical Photon Simulation in DUNE with Opticks
Ilker Parmaksiz, Aaron Higuera, Laura Paulucci et al.
Search for high-mass resonances in photon-jet final states using 140 fb-1 of pp collisions at s = 13 TeV with the ATLAS detector
ATLAS Collaboration
Efficient binned profile likelihood minimization for precision measurements with RABBIT
David Walter, Josh Bendavid, Kenneth Long
A Weighting Method for Incorporating Mass Resolution Effects in Amplitude Analysis
Benhou Xiang, Wenqian Zheng, Hongxun Yang et al.
A High Performance Partial Wave Analysis Framework for Hadron Spectroscopy
Benhou Xiang, Shuangshi Fang, Beijiang Liu
Measurement of tZq inclusive and differential cross-sections in pp collisions at s = 13~TeV with the ATLAS detector
ATLAS Collaboration