Published November 1998 | Version v1
Journal article

First Search for CP Violation in Tau Lepton Decay

  • 1. University of Minnesota, Minneapolis, Minnesota 55455 (United States)
  • 2. State University of New York at Albany, Albany, New York 12222 (United States)
  • 3. The Ohio State University, Columbus, Ohio 43210 (United States)
  • 4. University of Oklahoma, Norman, Oklahoma 73019 (United States)
  • 5. Purdue University, West Lafayette, Indiana 47907 (United States)
  • 6. University of Rochester, Rochester, New York 14627 (United States)
  • 7. Stanford Linear Accelerator Center, Stanford University, Stanford, California 94309 (United States)
  • 8. Southern Methodist University, Dallas, Texas 75275 (United States)
  • 9. Syracuse University, Syracuse, New York 13244 (United States)
  • 10. Vanderbilt University, Nashville, Tennessee 37235 (United States)
  • 11. Virginia Polytechnic Institute and State University, Blacksburg, Virginia 24061 (United States)
  • 12. Wayne State Univ., (United States)

Description

We have performed the first search for CP violation in tau lepton decay. CP violation in lepton decay does not occur in the minimal standard model but can occur in extensions such as the multi-Higgs doublet model. It appears as a characteristic difference between the τ- and τ+ decay angular distributions for the semileptonic decay modes such as τ-→K0π-ν . We define an observable asymmetry to exploit this and find no evidence for any CP violation. copyright 1998 The American Physical Society

Additional details

Publishing Information

Journal Title
Physical Review Letters
Journal Volume
81
Journal Issue
18
Journal Page Range
p. 3823-3827
ISSN
0031-9007
CODEN
PRLTAO