Search for B{sup 0}{yields}J/{psi}D{sup 0} and B{sup +}{yields}J/{psi}D{sup 0}{pi}{sup +} decays

Journal Article · Sun May 01 04:00:00 EDT 2005 · Physical Review. D, Particles Fields

DOI:https://doi.org/10.1103/PhysRevD.71.091107· OSTI ID:20709342

Zhang, L M; Zhang, Z P; Li, J ^[1]; Abe, K; Adachi, I; Gershon, T; Hazumi, M; Ishikawa, A; Itoh, R; Iwasaki, Y; Katayama, N; Kichimi, H; Nakao, M; Nishida, S; Ozaki, H; Sagawa, H; Sakai, Y; Stamen, R; Suzuki, S Y; Tajima, O ^[2]

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1. University of Science and Technology of China, Hefei (China)
2. High Energy Accelerator Research Organization (KEK), Tsukuba (Japan); and others

We report the results of a search for the decay modes B{sup 0}{yields}J/{psi}D{sup 0} and B{sup +}{yields}J/{psi}D{sup 0}{pi}{sup +}. The analysis is based on 140 fb{sup -1} of data accumulated by the Belle detector at the KEKB asymmetric-energy e{sup +}e{sup -} collider. No significant signals are observed and we determine the branching fraction upper limits B(B{sup 0}{yields}J/{psi}D{sup 0})<2.0x10{sup -5} and B(B{sup +}{yields}J/{psi}D{sup 0}{pi}{sup +})<2.5x10{sup -5} at 90% confidence level. These results rule out the explanation of the excess in the low momentum region of the inclusive J/{psi} spectrum as intrinsic charm content in the B meson. The branching fractions of the corresponding nonresonant decay channels are also reported.

• OSTI ID: 20709342
• Journal Information: Physical Review. D, Particles Fields, Journal Name: Physical Review. D, Particles Fields Journal Issue: 9 Vol. 71; ISSN PRVDAQ; ISSN 0556-2821
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
ASYMMETRY
B NEUTRAL MESONS
BRANCHING RATIO
D MESONS
ELECTRON-POSITRON INTERACTIONS
J PSI-3097 MESONS
MULTIPARTICLE SPECTROMETERS
PARTICLE DECAY
PARTICLE IDENTIFICATION
PIONS PLUS