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U.S. Department of Energy
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High sensitivity tests of the standard model for electroweak interactions. Scientific Progress report, 16 January 1992--15 January 1993

Technical Report ·
DOI:https://doi.org/10.2172/10110974· OSTI ID:10110974
The work done on this project was focused on two LAMPF experiments. The MEGA experiment, 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} {yields} ev{sub {mu}} v{sub e}] {approximately} 10{sup {minus}13}, is 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} ev{sub {mu}} v{sub e} to test the V-A theory of weak interactions. The uncertainty in the measurement of the Michel {rho} parameter is expected to be a factor of three lower than the present reported value.
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:
10110974
Report Number(s):
DOE/ER/40416--5; ON: DE93006186
Country of Publication:
United States
Language:
English