| Observation of the decay K- --> pi(-)mu(+)mu(-) and measurements of the branching ratios for K+/- --> pi(+/-)mu(+)mu(-). | |
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MedLine Citation:
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PMID: 11909394 Owner: NLM Status: PubMed-not-MEDLINE |
Abstract/OtherAbstract:
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Using data collected with the HyperCP (E871) spectrometer during the 1997 fixed-target run at Fermilab, we report the first observation of the decay K--->pi(-)mu(+)mu(-) and new measurements of the branching ratios for K+/--->pi(+/-)mu(+)mu(-). By combining the branching ratios for the decays K+-->pi(+)mu(+)mu(-) and K--->pi(-)mu(+)mu(-), we measure Gamma(K+/--->pi(+/-)mu(+)mu(-))/Gamma(K+/--->all) = (9.8+/-1.0+/-0.5)x10(-8). The CP asymmetry between the rates of the two decay modes is [Gamma(K+-->pi(+)mu(+)mu(-))-Gamma(K--->pi(-)mu(+)mu(-))]/[Gamma(K+-->pi(+)mu(+)mu(-))+Gamma(K--->pi(-)mu(+)mu(-))] = -0.02+/-0.11+/-0.04. |
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Authors:
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H K Park; R A Burnstein; A Chakravorty; A Chan; Y C Chen; W S Choong; K Clark; E C Dukes; C Durandet; J Felix; G Gidal; P Gu; H R Gustafson; C Ho; T Holmstrom; M Huang; C James; C M Jenkins; D M Kaplan; L M Lederman; N Leros; M J Longo; F Lopez; L Lu; W Luebke; K B Luk; K S Nelson; J P Perroud; D Rajaram; H A Rubin; P K Teng; J Volk; C White; S White; P Zyla; |
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Publication Detail:
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Type: Journal Article Date: 2002-02-28 |
Journal Detail:
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Title: Physical review letters Volume: 88 ISSN: 0031-9007 ISO Abbreviation: Phys. Rev. Lett. Publication Date: 2002 Mar |
Date Detail:
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Created Date: 2002-03-22 Completed Date: 2002-04-29 Revised Date: 2003-11-03 |
Medline Journal Info:
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Nlm Unique ID: 0401141 Medline TA: Phys Rev Lett Country: United States |
Other Details:
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Languages: eng Pagination: 111801 Citation Subset: - |
Affiliation:
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University of Michigan, Ann Arbor, Michigan 48109, USA. |
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From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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