Charm hadrons from fragmentation and B decays in e{sup +}e{sup -} annihilation at {radical}(s)=10.6 GeV

Journal Article · Wed Feb 01 04:00:00 EST 2006 · Physical Review. D, Particles Fields

DOI:https://doi.org/10.1103/PhysRevD.73.032002· OSTI ID:20776631

Seuster, R; Barbero, M; Fang, F; Olsen, S L; Varner, G ^[1]; Abe, K; Hoshi, Y ^[2]; Aihara, H ^[3]; Asano, Y ^[4]; Aushev, T; Danilov, M; Mizuk, R; Pakhlov, P; Uglov, T ^[5]; Bakich, A M; Cole, S ^[6]; Bedny, I; Eidelman, S; Krokovny, P; Kuzmin, A ^[7]

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1. University of Hawaii, Honolulu, Hawaii 96822 (United States)
2. Tohoku Gakuin University, Tagajo (Japan)
3. Department of Physics, University of Tokyo, Tokyo (Japan)
4. University of Tsukuba, Tsukuba (Japan)
5. Institute for Theoretical and Experimental Physics, Moscow (Russian Federation)
6. University of Sydney, Sydney NSW (Australia)
7. Budker Institute of Nuclear Physics, Novosibirsk (Russian Federation)

We present an analysis of charm quark fragmentation at 10.6 GeV, based on a data sample of 103 fb{sup -1} collected by the Belle detector at the KEKB accelerator. We consider fragmentation into the main charmed hadron ground states, namely D{sup 0},D{sup +},D{sub s}{sup +} and {lambda}{sub c}{sup +}, as well as the excited states D*{sup 0} and D*{sup +}. The fragmentation functions are important to measure as they describe processes at a low energy scale, where calculations in perturbation theory lead to large uncertainties. Fragmentation functions can also be used as input distributions for Monte Carlo generators. Additionally, we determine the average number of these charmed hadrons produced per B decay at the {upsilon}(4S) resonance and measure the distribution of their production angle in e{sup +}e{sup -} annihilation events and in B decays.

• OSTI ID: 20776631
• Journal Information: Physical Review. D, Particles Fields, Journal Name: Physical Review. D, Particles Fields Journal Issue: 3 Vol. 73; ISSN PRVDAQ; ISSN 0556-2821
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
ANNIHILATION
B MESONS
D NEUTRAL MESONS
D PLUS MESONS
D S MESONS
D*-2010 MESONS
DISTRIBUTION
ELECTROPRODUCTION
EXCITED STATES
GEV RANGE
GROUND STATES
HADRONIC PARTICLE DECAY
INCLUSIVE INTERACTIONS
LAMBDA C PLUS BARYONS
MONTE CARLO METHOD
MULTIPARTICLE SPECTROMETERS
PARTICLE IDENTIFICATION
PERTURBATION THEORY
QUARKS
RESONANCE PARTICLES