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Determination of B ( D sub s sup + r arrow. phi. pi. sup + ) via observation of D sub s sup + r arrow. phi. l sup +. nu

Journal Article · · Physical Review Letters; (USA)
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Using the CLEO detector at the Cornell Electron Storage Ring (CESR), we have determined the ratio {Gamma}({ital D}{sub {ital s}}{sup +}{r arrow}{phi}{ital l}{sup +}{nu})/{Gamma}({ital D}{sub {ital s}}{sup +} {r arrow}{phi}{pi}{sup +})=0.49{plus minus}0.10{sub {minus}0.14}{sup +0.10}. We use this measurement to derive {ital B}({ital D}{sub {ital s}}{sup +}{r arrow}{phi}{pi}{sup +}).
DOE Contract Number:
AC02-80ER10569; AC02-83ER40105; FG05-86ER40272
OSTI ID:
6228504
Journal Information:
Physical Review Letters; (USA), Journal Name: Physical Review Letters; (USA) Vol. 65:13; ISSN PRLTA; ISSN 0031-9007
Country of Publication:
United States
Language:
English

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Related Subjects

645103* -- High Energy Physics-- Particle Interactions & Properties-Experimental-- Strong Interactions & Baryon & Meson Properties
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
B MESONS
BOSONS
BRANCHING RATIO
CESR STORAGE RING
CHARM PARTICLES
CHARMED MESONS
D S MESONS
DECAY
ELEMENTARY PARTICLES
HADRON-HADRON INTERACTIONS
HADRONS
INTERACTIONS
MESON-MESON INTERACTIONS
MESONS
PARTICLE DECAY
PARTICLE INTERACTIONS
PSEUDOSCALAR MESONS
STORAGE RINGS
WEAK PARTICLE DECAY