Published July 15, 2005 | Version v1
Journal article Metadata-only

Evidence for Bs0→φφ Decay and Measurements of Branching Ratio and ACP for B+→φK+

Creators

  • 1. University of Florida, Gainesville, Florida 32611 (United States)
  • 2. Enrico Fermi Institute, University of Chicago, Chicago, Illinois 60637 (United States)

Description

We present the first evidence of charmless decays of the Bs0 meson, the decay Bs0→φφ, and a measurement of the branching ratio BR(Bs0→φφ) using 180 pb-1 of data collected by the CDF II experiment at the Fermilab Tevatron collider. In addition, the BR and direct CP asymmetry for the B+→φK+ decay are measured. We obtain BR(Bs0→φφ)=[14-5+6(stat)±6(syst)]x10-6, BR(B+→φK+)=[7.6±1.3(stat)±0.6(syst)]x10-6, and ACP(B+→φK+)=-0.07±0.17(stat)(+0.03/-0.02)(syst). Both decays are governed in the standard model by second order (penguin) b→sss amplitudes

Additional details

Identifiers

DOI
10.1103/PhysRevLett.95.031801;
arXiv
arXiv:hep-ex/0502044v3;

Publishing Information

Journal Title
Physical Review Letters
Journal Volume
95
Journal Issue
3
Journal Page Range
p. 031801-031801.7
ISSN
0031-9007
CODEN
PRLTAO

INIS

Country of Publication
United States
Country of Input or Organization
International Atomic Energy Agency (IAEA)
INIS RN
37012355
Subject category
S72: PHYSICS OF ELEMENTARY PARTICLES AND FIELDS;
Descriptors DEI
ASYMMETRY; B NEUTRAL MESONS; B PLUS MESONS; BRANCHING RATIO; CP INVARIANCE; FERMILAB COLLIDER DETECTOR; FERMILAB TEVATRON; HADRONIC PARTICLE DECAY; KAONS PLUS; STANDARD MODEL; VECTOR MESONS
Descriptors DEC
ACCELERATORS; B MESONS; BEAUTY MESONS; BEAUTY PARTICLES; BOSONS; CYCLIC ACCELERATORS; DECAY; DIMENSIONLESS NUMBERS; ELEMENTARY PARTICLES; FIELD THEORIES; GRAND UNIFIED THEORY; HADRONS; INVARIANCE PRINCIPLES; KAONS; MATHEMATICAL MODELS; MEASURING INSTRUMENTS; MESONS; PARTICLE DECAY; PARTICLE MODELS; PSEUDOSCALAR MESONS; QUANTUM FIELD THEORY; RADIATION DETECTORS; STRANGE MESONS; STRANGE PARTICLES; SYNCHROTRONS; UNIFIED GAUGE MODELS

Optional Information

Notes
(c) 2005 The American Physical Society
Collaborations
CDF Collaboration