Color-octet contributions to P-wave B{sub c} meson hadroproduction

Journal Article · Fri Apr 01 04:00:00 EST 2005 · Physical Review. D, Particles Fields

DOI:https://doi.org/10.1103/PhysRevD.71.074012· OSTI ID:20708983

Chang, C -H ^[1]; Qiao, C -F ^[1]; Wang, J -X; Wu, X -G ^[2]

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1. CCAST (World Laboratory), P.O. Box 8730, Beijing 100080 (China)
2. Institute of High Energy Physics, P.O. Box 918(4), Beijing 100049 (China)

The contributions from the color-octet components vertical bar (cb){sub 8}({sup 1}S{sub 0})g> and vertical bar (cb){sub 8}({sup 3}S{sub 1})g> to the h{sub B{sub c}} or {chi}{sub B{sub c}}{sup J} (the P-wave B{sub c} meson) hadroproduction are estimated in terms of the complete O({alpha}{sub s}{sup 4}) calculation. As necessary inputs in the estimate, we take the values of the octet matrix elements according to the nonrelativistic quantum chromodynamics scaling rules, and as a result, we have found that the contributions to the P-wave production may be the same in order of magnitude as those from the color-singlet ones, |(cb){sub 1}({sup 1}P{sub 1})> and |(cb){sub 1}({sup 3}P{sub J})> (J=1,2,3). Especially, our result indicates that the observation of the color-octet contributions to the P-wave production in the low transverse momentum region is not very far from the present experimental capability at Tevatron and LHC.

• OSTI ID: 20708983
• Journal Information: Physical Review. D, Particles Fields, Journal Name: Physical Review. D, Particles Fields Journal Issue: 7 Vol. 71; ISSN PRVDAQ; ISSN 0556-2821
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
B C MESONS
B MESONS
CERN LHC
COLOR MODEL
FERMILAB TEVATRON
INCLUSIVE INTERACTIONS
MATRIX ELEMENTS
P WAVES
PARTICLE PRODUCTION
PROTON-PROTON INTERACTIONS
QUANTUM CHROMODYNAMICS
TRANSVERSE MOMENTUM