High sensitivity tests of the standard model for electroweak interactions. Progress report, 16 January 1993--15 January 1994
The work done on this project focused on two LAMPF experiments. The MEGA experiment is a high-sensitivity search for the lepton family number violating decay {mu} {yields} e{gamma} to a sensitivity which, measured in terms of the branching ratio, BR = [{mu} {yields} e{gamma}]/[{mu} e{nu}{sub {mu}}{nu}{sub e}] {approximately} 10{sup {minus}13}, will be over two orders of magnitude better than previously reported values. The second is a precision measurement of the Michel {rho} parameter from the positron energy spectrum of {mu} {yields} e{nu}{sub {mu}}{nu}{sub e} to test the predictions V-A theory of weak interactions. In this experiment the uncertainty in the measurement of the Michel {rho} parameter is expected to be a factor of three lower than the present reported value. The detectors are operational, and data taking has begun.
- Research Organization:
- Valparaiso Univ., IN (United States). Dept. of Physics and Astronomy
- Sponsoring Organization:
- USDOE, Washington, DC (United States)
- DOE Contract Number:
- FG02-88ER40416
- OSTI ID:
- 10115841
- Report Number(s):
- DOE/ER/40416--6; ON: DE94005415; BR: GB0103013/KB0101000
- Country of Publication:
- United States
- Language:
- English
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