Published June 1, 2008 | Version v1
Journal article Metadata-only

Study of B→X(3872)K, with X(3872)→J/ψπ+π-

Creators

  • 1. Laboratoire de Physique des Particules, IN2P3/CNRS et Universite de Savoie, F-74941 Annecy-Le-Vieux (France)
  • 2. Universitat de Barcelona, Facultat de Fisica, Departament ECM, E-08028 Barcelona (Spain)
  • 3. Universita di Bari, Dipartimento di Fisica and INFN, I-70126 Bari (Italy)
  • 4. University of Bergen, Institute of Physics, N-5007 Bergen (Norway)
  • 5. Lawrence Berkeley National Laboratory and University of California, Berkeley, CA 94720 (United States)

Description

We present measurements of the decays B+→X(3872)K+ and B0→X(3872)K0 with X(3872)→J/ψπ+π-. The data sample used, collected with the BABAR detector at the PEP-II e+e- asymmetric-energy storage ring, corresponds to 455x106BB pairs. Branching fraction measurements of B(B+→X(3872)K+)xB(X(3872)→J/ψπ+π-)=(8.4±1.5±0.7)x10-6 and B(B0→X(3872)K0)xB(X(3872)→J/ψπ+π-)=(3.5±1.9±0.4)x10-6 are obtained. We set an upper limit on the natural width of the X(3872) of Γ<3.3 MeV/c2 at the 90% confidence level

Additional details

Identifiers

DOI
10.1103/PhysRevD.77.111101;
arXiv
arXiv:0803.2838v1;

Publishing Information

Journal Title
Physical Review. D, Particles Fields
Journal Volume
77
Journal Issue
11
Journal Page Range
p. 111101-111101.7
ISSN
0556-2821
CODEN
PRVDAQ

INIS

Country of Publication
United States
Country of Input or Organization
International Atomic Energy Agency (IAEA)
INIS RN
40075561
Subject category
S72: PHYSICS OF ELEMENTARY PARTICLES AND FIELDS;
Descriptors DEI
ASYMMETRY; BRANCHING RATIO; DECAY; ELECTRONS; KAONS NEUTRAL; KAONS PLUS; MEV RANGE; PARTICLE DECAY; PIONS MINUS; POSITRONS; STORAGE RINGS
Descriptors DEC
ANTILEPTONS; ANTIMATTER; ANTIPARTICLES; BOSONS; DECAY; DIMENSIONLESS NUMBERS; ELEMENTARY PARTICLES; ENERGY RANGE; FERMIONS; HADRONS; KAONS; LEPTONS; MATTER; MESONS; PIONS; PSEUDOSCALAR MESONS; STRANGE MESONS; STRANGE PARTICLES

Optional Information

Notes
(c) 2008 The American Physical Society
Collaborations
BABAR Collaboration