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Physical Review D

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Prompt heavy quarkonium production in association with a massive (anti)bottom quark at the LHC

Li Gang, Wang ShuangTe, Song Mao, and Lin JiPing

School of Physics Material Science, Anhui University, Hefei, Anhui 230039, P.R. China

Phys. Rev. D 85, 074026 – Published 24 April, 2012

DOI: https://doi.org/10.1103/PhysRevD.85.074026

Abstract

In this work, we investigate the associated production of prompt heavy quarkonium and a massive (anti)bottom quark to leading order in the nonrelativistic QCD factorization formalism at the LHC. We present numerical results for the processes involving $J / ψ$ , $χ_{c J}$ , $Υ$ and $χ_{b J}$ . From our work, we find that the production rates of these processes are quite large, and these processes have the potential to be detected at the LHC. When $p_{T}$ is smaller than about 10 GeV, the $c \bar{c} [{}^{1}S_{0}^{(8)}]$ states give the main contribution to the $p_{T}$ distribution of prompt $J / ψ$ with a massive (anti)bottom quark production. For the process $p p \to Υ + b (\bar{b})$ , the contribution of the color-singlet mechanism is larger than that in the color-octet mechanism at low $p_{T}$ region. We also investigate the processes $p p \to χ_{c J} + b (\bar{b})$ and $p p \to χ_{b J} + b (\bar{b})$ ; the $p_{T}$ distributions are dominated by the color-octet Fock-state contribution at large $p_{T}$ . These processes provide an interesting signature that could be studied at the LHC, and the measurement of these processes is useful to test the color-singlet mechanism and color-octet mechanism.

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References (34)

M. B. Einhorn and S. D. Ellis, Phys. Rev. D 12, 2007 (1975); S. D. Ellis, M. B. Einhorn, and C. Quigg, Phys. Rev. Lett. 36, 1263 (1976); Chang Chao-Hsi, Nucl. Phys. B172, 425 (1980); E. L. Berger and D. L. Jones, Phys. Rev. D 23, 1521 (1981); R. Baier and R. Ruckl, Nucl. Phys. B201, 1 (1982).
R. Barbieri, R. Gatto, and E. Remiddi, Phys. Lett. B 61, 465 (1976); R. Barbieri, M. Caffo, R. Gatto, and E. Remiddi, 95, 93 (1980); Nucl. Phys. B192, 61 (1981); R. Barbieri, E. d’Emilio, G. Curci, and E. Remiddi, B154, 535 (1979); K. Hagiwara, C. B. Kim, and T. Yoshino, B177, 461 (1981); P. B. Mackenzie and G. P. Lepage, Phys. Rev. Lett. 47, 1244 (1981).
F. Abe et al. (CDF), Phys. Rev. Lett. 69, 3704 (1992); CDF71, 2537 (1993).
G. T. Bodwin, E. Braaten, and G. P. Lepage, Phys. Rev. D 51, 1125 (1995); 55, 5853(E) (1997).
G. P. Lepage, L. Magnea, C. Nakhleh, U. Magnea, and K. Hornbostel, Phys. Rev. D 46, 4052 (1992).
Peter Cho and Adam K. Leibovich, Phys. Rev. D 53, 150 (1996).
Han-Wen Huang and Kuang-Ta Chao, Phys. Rev. D 54, 3065 (1996); 55, 244 (1997); 54, 6850 (1996).
A. Petrelli, M. Cacciari, M. Greco, F. Maltoni, and M. L. Mangano, Nucl. Phys. B514, 245 (1998).
Zhi-Guo He, Ying Fan, and Kuang-Ta Chao, Phys. Rev. Lett. 101, 112001 (2008).
Ying Fan, Zhi-Guo He, Yan-Qing Ma, and Kuang-Ta Chao, Phys. Rev. D 80, 014001 (2009).
E. Braaten and S. Fleming, Phys. Rev. Lett. 74, 3327 (1995).
J. Abdallah et al. (DELPHI Collaboration), Phys. Lett. B 565, 76 (2003); M. Klasen, B. A. Kniehl, L. N. Mihaila, and M. Steinhauser, Phys. Rev. Lett. 89, 032001 (2002).
C. Adloff et al. (H1 Collaboration), Eur. Phys. J. C 25, 25 (2002); M. Steder (on behalf of the H1 Collaboration), Report No. H1prelim-07-172.
Mathias Butenschon and Bernd A. Kniehl, Phys. Rev. Lett. 104, 072001 (2010).
Y. J. Zhang, Y. j. Gao, and K. T. Chao, Phys. Rev. Lett. 96, 092001 (2006); Y. J. Zhang and K. T. Chao, 98, 092003 (2007); Y. J. Zhang, Y. Q. Ma, and K. T. Chao, Phys. Rev. D 78, 054006 (2008); Y. Q. Ma, Y. J. Zhang, and K. T. Chao, Phys. Rev. Lett. 102, 162002 (2009); Y. J. Zhang, Y. Q. Ma, K. Wang, and K. T. Chao, Phys. Rev. D 81, 034015 (2010).
B. Gong and J. X. Wang, Phys. Rev. D 77, 054028 (2008); Phys. Rev. Lett. 100, 181803 (2008); 102, 162003 (2009); Phys. Rev. D 80, 054015 (2009).
W. L. Sang and Y. Q. Chen, Phys. Rev. D 81, 034028 (2010).
G. T. Bodwin, D. Kang, T. Kim, J. Lee, and C. Yu, AIP Conf. Proc. 892, 315 (2007); Z. G. He, Y. Fan, and K. T. Chao, Phys. Rev. D 75, 074011 (2007); G. T. Bodwin, J. Lee, and C. Yu, 77, 094018 (2008); Y. Jia, 82, 034017 (2010).
Z. G. He, Y. Fan, and K. T. Chao, Phys. Rev. D 81, 054036 (2010).
E. Braaten, B. A. Kniehl, and J. Lee, Phys. Rev. D 62, 094005 (2000); B. A. Kniehl and J. Lee, 62, 114027 (2000).
P. Artoisenet, J. Campbell, F. Maltoni, and F. Tramontano, Phys. Rev. Lett. 102, 142001 (2009); Mathias Butenschoen and Bernd A. Kniehl, 107, 232001 (2011).
J. P. Lansberg, Phys. Lett. B 679, 340 (2009); C. H. Kom, A. Kulesza, and W. J. Stirling, Phys. Rev. Lett. 107, 082002 (2011); Bernd A. Kniehl, Caesar P. Palisoc, and Lennart Zwirner, Phys. Rev. D 66, 114002 (2002); 69, 115005 (2004); Rong Li, Yu-Jie Zhang, and Kuang-Ta Chao, 80, 014020 (2009).
P. Artoisenet, J. P. Lansberg, and F. Maltoni, Phys. Lett. B 653, 60 (2007).
R. Li and J. X. Wang, Phys. Lett. B 672, 51 (2009); P. Artoisenet, J. Campbell, J. P. Lansberg, F. Maltoni, and F. Tramontano, Phys. Rev. Lett. 101, 152001 (2008); Zhi-Guo He, Rong Li, and Jian-Xiong Wang, Phys. Rev. D 79, 094003 (2009); Bin Gong, Jian-Xiong Wang, and Hong-Fei Zhang, 83, 114021 (2011).
Li Gang, Song Mao, Zhang Ren-You, and Ma Wen-Gan, Phys. Rev. D 83, 014001 (2011).
Song Mao, Ma Wen-Gan, Li Gang, Zhang Ren-You, and Guo Lei, J. High Energy Phys. 02 (2011) 071.
V. Barger, S. Fleming, and R. J. N. Phillips, Phys. Lett. B 371, 111 (1996).
E. Braaten, J. Lee, and S. Fleming, Phys. Rev. D 60, 091501 (1999).
Yan-Qing Ma, Kai Wang, and Kuang-Ta Chao, Phys. Rev. D 83, 111503 (2011).
M. Butensch, Madrid, and Spain, AIP Conf. Proc. 1343, 409 (2011).
E. J. Eichten and C. Quigg, Phys. Rev. D 52, 1726 (1995).
W. Buchmüller and S. H. H. Tye, Phys. Rev. D 24, 132 (1981); E. J. Eichten and C. Quigg, 52, 1726 (1995).
T. Affolder et al. (CDF), Phys. Rev. Lett. 84, 2094 (2000).
J. Pumplin, D. R. Stump, J. Huston, H. L. Lai, P. Nadolsky, and W. K. Tung, J. High Energy Phys. 07 (2002) 012.