|
|||||
|
|
A limit on the lepton-family number violating process π → μe |
|
| Authors: | P Krolak R A Briere E Cheu D A Harris K S McFarland A Roodman B Schwingenheuer S V Somalwar Y W Wah B Winstein R WinstonK Arisaka D Roberts W Slater M WeaverA R BarkerE C Swallow G J Bock R Coleman M Crisler J Enagonio R Ford Y B Hsiung D A Jensen E Ramberg R TschirhartE M Collins G D GollinT Nakaya T YamanakaP Gu P Haas W P Hogan S K Kim J N Matthews S S Myung S Schnetzer G B ThomsonY Zou |
| Affiliation: | The Enrico Fermi Institute, The University of Chicago, Chicago, IL 60637, USA University of California at Los Angeles, Los Angeles, CA 90024, USA University of Colorado, Boulder, CO 80309, USA a Elmhurst College, Elmhurst, IL 60126, USA b The Enrico Fermi Institute, The University of Chicago, Chicago, IL 60637, USA Fermi National Accelerator Laboratory, Batavia, IL 60510, USA University of Illinois, Urbana, IL 61801, USA Department of Physics, Osaka University, Toyonaka, Osaka, 560, Japan Rutgers University, Piscataway, NJ 08855, USA |
| Abstract: | A FNAL E799 Collaboration has carried out a search for the lepton-family number violating decay π0 → μ±e using π0's produced from KL → π0π0π0 decays in flight. No events were observed. Assuming that lepton-family number violation is charge independent, the 90% confidence level upper limit on was determined to be 8.6 × 10?9. |
| Keywords: | |
| 本文献已被 ScienceDirect 等数据库收录！ | |