Abstract
We have observed the decay (Formula presented) at the KTeV experiment at Fermilab. This decay presents a formidable background to the search for new physics in (Formula presented) The 1997 data yielded a sample of 4 signal events, with an expected background of (Formula presented) events. The branching ratio is (Formula presented) with (Formula presented) consistent with a QED calculation which predicts (Formula presented).
Original language | English (US) |
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Pages (from-to) | 5 |
Number of pages | 1 |
Journal | Physical Review D - Particles, Fields, Gravitation and Cosmology |
Volume | 62 |
Issue number | 11 |
DOIs | |
State | Published - 2000 |
All Science Journal Classification (ASJC) codes
- Nuclear and High Energy Physics
- Physics and Astronomy (miscellaneous)