Evidence for B{sup 0}{yields}{chi}{sub c1}{pi}{sup 0} at Belle

Journal Article · Sat Nov 01 00:00:00 EDT 2008 · Physical Review. D, Particles Fields

DOI:https://doi.org/10.1103/PHYSREVD.78.091104· OSTI ID:21254587

Kumar, R; Singh, J B; Bhardwaj, V ^[1]; Adachi, I; Dalseno, J; Haba, J; Hazumi, M; Itoh, R; Katayama, N; Kichimi, H; Krokovny, P; Nakamura, I; Nishida, S; Ozaki, H; Sakai, Y; Tanaka, M; Trabelsi, K; Uehara, S; Uno, S ^[2]; Aihara, H ^[3]

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1. Panjab University, Chandigarh (India)
2. High Energy Accelerator Research Organization (KEK), Tsukuba (Japan)
3. Department of Physics, University of Tokyo, Tokyo (Japan)

We present a measurement of the branching fraction for the Cabibbo- and color-suppressed B{sup 0}{yields}{chi}{sub c1}{pi}{sup 0} decay based on a data sample of 657x10{sup 6}BB events collected at the {upsilon}(4S) resonance with the Belle detector at the KEKB asymmetric-energy e{sup +}e{sup -} collider. We observe a signal of 40{+-}9 events with a significance of 4.7{sigma} including systematic uncertainties. The measured branching fraction is B(B{sup 0}{yields}{chi}{sub c1}{pi}{sup 0})=(1.12{+-}0.25(stat){+-}0.12(syst.))x10{sup -5}.

• OSTI ID: 21254587
• Journal Information: Physical Review. D, Particles Fields, Journal Name: Physical Review. D, Particles Fields Journal Issue: 9 Vol. 78; 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
COLOR MODEL
DATA ANALYSIS
ELECTRON-POSITRON COLLISIONS
PARTICLE DECAY
PIONS NEUTRAL
RESONANCE