Search for the flavor-changing neutral-current decays {ital D}{sup +}{r_arrow}{pi}{sup +}{mu}{sup +}{mu}{sup {minus}} and {ital D}{sup +}{r_arrow}{pi}{sup +}{ital e}{sup +}{ital e}{sup {minus}}
Journal Article
·
· Physical Review Letters
OSTI ID:278773
We report the results of a search for the flavor-changing neutral-current decays {ital D}{sup +}{r_arrow}{pi}{sup +}{mu}{sup +}{mu}{sup {minus}} and {ital D}{sup +}{r_arrow}{pi}{sup +}{ital e}{sup +}{ital e}{sup {minus}} in data from Fermilab charm hadroproduction experiment E791. No signal above background is found, and we obtain upper limits on branching fractions, {ital B}({ital D}{sup +}{r_arrow}{pi}{sup +}{mu}{sup +}{mu}{sup {minus}}){lt}1.8{times}10{sup {minus}5} and {ital B}({ital D}{sup +}{r_arrow}{pi}{sup +}{ital e}{sup +}{ital e}{sup {minus}}){lt}6.6{times}10{sup {minus}5}, at the 90{percent} confidence level. {copyright} {ital 1996 The American Physical Society.}
- OSTI ID:
- 278773
- Journal Information:
- Physical Review Letters, Journal Name: Physical Review Letters Journal Issue: 3 Vol. 76; ISSN 0031-9007; ISSN PRLTAO
- Country of Publication:
- United States
- Language:
- English
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