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Title: Production of B{sub c} or B{sub c} meson and its excited states via t-quark or t-quark decays

Abstract

The production of (bc)-quarkonium (B{sub c} meson and its excited states) or (cb)-quarkonium (B{sub c} meson and its excited states) via top quark t or top antiquark t decays, t{yields}(bc)+c+W{sup +} or t{yields}(cb)+c+W{sup -}, respectively, is studied within the framework of NRQCD. In addition to the production of the two color-singlet S-wave states |(bc)({sup 1}S{sub 0}){sub 1}> or |(cb)({sup 1}S{sub 0}){sub 1}> and |(bc)({sup 3}S{sub 1}){sub 1}> or |(cb)({sup 3}S{sub 1}){sub 1}>, the production of the P-wave excited (bc) or (cb) states, i.e. the four color-singlet P-wave states |(bc)({sup 1}P{sub 1}){sub 1}> or |(cb)({sup 1}P{sub 1}){sub 1}>, and (bc)({sup 3}P{sub J}){sub 1}> or (cb)({sup 3}P{sub J}){sub 1}> (with J=(1,2,3)), is also studied. According to the velocity scaling rule of NRQCD, for the production of P-wave excited states the contributions from the two color-octet components |(bc)({sup 1}S{sub 0}){sub 8}> or |(cb)({sup 1}S{sub 0}){sub 8}> and |(bc)({sup 3}S{sub 1}){sub 8}> or |(cb)({sup 3}S{sub 1}){sub 8}> are also taken into account. We quantitatively discuss the possibility and the advantages in experimental studies of B{sub c} or B{sub c} meson and its excited states via the indirect production at LHC in high luminosity runs and at LHC possible upgraded versions such as SLHC, DLHC,more » TLHC, etc. in the future.« less

Authors:
 [1];  [2];  [3]
  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)
  3. Department of Physics, Chongqing University, Chongqing 400044 (China)
Publication Date:
OSTI Identifier:
21035705
Resource Type:
Journal Article
Journal Name:
Physical Review. D, Particles Fields
Additional Journal Information:
Journal Volume: 77; Journal Issue: 1; Other Information: DOI: 10.1103/PhysRevD.77.014022; (c) 2008 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 0556-2821
Country of Publication:
United States
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; B C MESONS; CERN LHC; COLOR MODEL; EXCITED STATES; P WAVES; PARTICLE DECAY; PARTICLE PRODUCTION; S WAVES; T QUARKS

Citation Formats

Chaohsi, Chang, Institute of Theoretical Physics, Chinese Academy of Sciences, P.O. Box 2735, Beijing 100080, Department of Physics, Chongqing University, Chongqing 400044, Jianxiong, Wang, and Xinggang, Wu. Production of B{sub c} or B{sub c} meson and its excited states via t-quark or t-quark decays. United States: N. p., 2008. Web. doi:10.1103/PHYSREVD.77.014022.
Chaohsi, Chang, Institute of Theoretical Physics, Chinese Academy of Sciences, P.O. Box 2735, Beijing 100080, Department of Physics, Chongqing University, Chongqing 400044, Jianxiong, Wang, & Xinggang, Wu. Production of B{sub c} or B{sub c} meson and its excited states via t-quark or t-quark decays. United States. https://doi.org/10.1103/PHYSREVD.77.014022
Chaohsi, Chang, Institute of Theoretical Physics, Chinese Academy of Sciences, P.O. Box 2735, Beijing 100080, Department of Physics, Chongqing University, Chongqing 400044, Jianxiong, Wang, and Xinggang, Wu. Tue . "Production of B{sub c} or B{sub c} meson and its excited states via t-quark or t-quark decays". United States. https://doi.org/10.1103/PHYSREVD.77.014022.
@article{osti_21035705,
title = {Production of B{sub c} or B{sub c} meson and its excited states via t-quark or t-quark decays},
author = {Chaohsi, Chang and Institute of Theoretical Physics, Chinese Academy of Sciences, P.O. Box 2735, Beijing 100080 and Department of Physics, Chongqing University, Chongqing 400044 and Jianxiong, Wang and Xinggang, Wu},
abstractNote = {The production of (bc)-quarkonium (B{sub c} meson and its excited states) or (cb)-quarkonium (B{sub c} meson and its excited states) via top quark t or top antiquark t decays, t{yields}(bc)+c+W{sup +} or t{yields}(cb)+c+W{sup -}, respectively, is studied within the framework of NRQCD. In addition to the production of the two color-singlet S-wave states |(bc)({sup 1}S{sub 0}){sub 1}> or |(cb)({sup 1}S{sub 0}){sub 1}> and |(bc)({sup 3}S{sub 1}){sub 1}> or |(cb)({sup 3}S{sub 1}){sub 1}>, the production of the P-wave excited (bc) or (cb) states, i.e. the four color-singlet P-wave states |(bc)({sup 1}P{sub 1}){sub 1}> or |(cb)({sup 1}P{sub 1}){sub 1}>, and (bc)({sup 3}P{sub J}){sub 1}> or (cb)({sup 3}P{sub J}){sub 1}> (with J=(1,2,3)), is also studied. According to the velocity scaling rule of NRQCD, for the production of P-wave excited states the contributions from the two color-octet components |(bc)({sup 1}S{sub 0}){sub 8}> or |(cb)({sup 1}S{sub 0}){sub 8}> and |(bc)({sup 3}S{sub 1}){sub 8}> or |(cb)({sup 3}S{sub 1}){sub 8}> are also taken into account. We quantitatively discuss the possibility and the advantages in experimental studies of B{sub c} or B{sub c} meson and its excited states via the indirect production at LHC in high luminosity runs and at LHC possible upgraded versions such as SLHC, DLHC, TLHC, etc. in the future.},
doi = {10.1103/PHYSREVD.77.014022},
url = {https://www.osti.gov/biblio/21035705}, journal = {Physical Review. D, Particles Fields},
issn = {0556-2821},
number = 1,
volume = 77,
place = {United States},
year = {2008},
month = {1}
}