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High Energy Physics Seminars

ics High Energy
Wednesday, November 3, 2004
3:30 PM
Physics Building, Room 204
HyangKyu Park [Host: Hank Thacker]
University of Michigan
"The Decay Σ+ → pµ+µ- and Possible New Physics from HyperCP"
ABSTRACT:
The Fermilab HyperCP (E871) experiment collected on the order of 1010 hyperon decays in 1997 and 1999 runs. Using the entire data set, we will report on the observation of events with reconstructed masses consistent with that of Σ+ assuming the final state pµ+µ-. The observed events would be the rarest decay ever observed in the baryon sector. Possible interpretations of the observed events will be discussed. Finally we will present a speculation for a new physics scenario.

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