Prompt double J/ψ production in proton-proton collisions at the LHC

被引：23

作者：

Baranov, S. P. ^{[1
]}

Rezaeian, Amir H. ^{[2
,3
]}

机构：

[1] PN Lebedev Phys Inst, Leninsky Prosp 53, Moscow 117924, Russia

[2] Univ Tecn Federico Santa Maria, Dept Fis, Ave Espana 1680,Casilla 110-5, Valparaiso, Chile

[3] Univ Tecn Federico Santa Maria, Ctr Cient Tecnol Valparaiso CCTVal, Casilla 110-5, Valparaiso, Chile

来源：

PHYSICAL REVIEW D | 2016年 / 93卷 / 11期

关键词：

RANGE ANGULAR-CORRELATIONS; PSI-PSI-PRODUCTION; P-PB COLLISIONS; LONG-RANGE; PAIR PRODUCTION; TRANSVERSE-MOMENTUM; HADRONIC PRODUCTION; QCD COHERENCE; PLUS; UPSILON;

D O I：

10.1103/PhysRevD.93.114011

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We provide a detailed study of prompt double J/psi production within the nonrelativistic QCD (NRQCD) framework in proton-proton collisions at the LHC. We confront the recent LHC data with the results obtained at leading order (LO) in the NRQCD framework within two approaches of the collinear factorization and the k(T)-factorization. We show that the LHCb data are consistent with the k(T)-factorized LO NRQCD results. We show that the full LO NRQCD formalism cannot describe the recent CMS data, with about one order of magnitude discrepancy. If the CMS data are confirmed, this indicates rather large higher-order corrections for prompt double J/psi production. We provide various predictions which can further test the NRQCD-based approach at the LHC in a kinematic region that LO contributions dominate. We also investigate long-range in rapidity double J/psi correlations. We found no evidence of a ridge-like structure for double J/psi production in proton-proton collisions at the LHC up to subleading alpha(6)(s) accuracy.

引用

页数：9

共 84 条

[21] RIGOROUS QCD ANALYSIS OF INCLUSIVE ANNIHILATION AND PRODUCTION OF HEAVY QUARKONIUM [J].

BODWIN, GT ;

BRAATEN, E ;

LEPAGE, GP .

PHYSICAL REVIEW D, 1995, 51 (03) :1125-1171

[22] Rigorous QCD analysis of inclusive annihilation and production of heavy quarkonium (vol 51, pg 1125, 1995) [J].

Bodwin, GT ;

Braaten, E ;

Lepage, GP .

PHYSICAL REVIEW D, 1997, 55 (09) :5853-5854

[23] Collective dynamics in high-energy proton-nucleus collisions [J].

Bozek, Piotr ;

Broniowski, Wojciech .

PHYSICAL REVIEW C, 2013, 88 (01)

[24] Correlations from hydrodynamic flow in pPb collisions [J].

Bozek, Piotr ;

Broniowski, Wojciech .

PHYSICS LETTERS B, 2013, 718 (4-5) :1557-1561

[25]

Bozek P, 2011, EUR PHYS J C, V71, DOI 10.1140/epjc/s10052-010-1530-0

[26] QCD and strongly coupled gauge theories: challenges and perspectives [J].

Brambilla, N. ;

Eidelman, S. ;

Foka, P. ;

Gardner, S. ;

Kronfeld, A. S. ;

Alford, M. G. ;

Alkofer, R. ;

Butenschoen, M. ;

Cohen, T. D. ;

Erdmenger, J. ;

Fabbietti, L. ;

Faber, M. ;

Goity, J. L. ;

Ketzer, B. ;

Lin, H. W. ;

Llanes-Estrada, F. J. ;

Meyer, H. B. ;

Pakhlov, P. ;

Pallante, E. ;

Polikarpov, M. I. ;

Sazdjian, H. ;

Schmitt, A. ;

Snow, W. M. ;

Vairo, A. ;

Vogt, R. ;

Vuorinen, A. ;

Wittig, H. ;

Arnold, P. ;

Christakoglou, P. ;

Di Nezza, P. ;

Fodor, Z. ;

Garcia i Tormo, X. ;

Hoellwieser, R. ;

Janik, M. A. ;

Kalweit, A. ;

Keane, D. ;

Kiritsis, E. ;

Mischke, A. ;

Mizuk, R. ;

Odyniec, G. ;

Papadodimas, K. ;

Pich, A. ;

Pittau, R. ;

Qiu, J. -W. ;

Ricciardi, G. ;

Salgado, C. A. ;

Schwenzer, K. ;

Stefanis, N. G. ;

von Hippel, G. M. ;

Zakharov, V. I. .

EUROPEAN PHYSICAL JOURNAL C, 2014, 74 (10)

[27] Heavy quarkonium: progress, puzzles, and opportunities [J].

Brambilla, N. ;

Eidelman, S. ;

Heltsley, B. K. ;

Vogt, R. ;

Bodwin, G. T. ;

Eichten, E. ;

Frawley, A. D. ;

Meyer, A. B. ;

Mitchell, R. E. ;

Papadimitriou, V. ;

Petreczky, P. ;

Petrov, A. A. ;

Robbe, P. ;

Vairo, A. ;

Andronic, A. ;

Arnaldi, R. ;

Artoisenet, P. ;

Bali, G. ;

Bertolin, A. ;

Bettoni, D. ;

Brodzicka, J. ;

Bruno, G. E. ;

Caldwell, A. ;

Catmore, J. ;

Chang, C. -H. ;

Chao, K. -T. ;

Chudakov, E. ;

Cortese, P. ;

Crochet, P. ;

Drutskoy, A. ;

Ellwanger, U. ;

Faccioli, P. ;

Mokhtar, A. Gabareen ;

Garcia i Tormo, X. ;

Hanhart, C. ;

Harris, F. A. ;

Kaplan, D. M. ;

Klein, S. R. ;

Kowalski, H. ;

Lansberg, J. -P. ;

Levichev, E. ;

Lombardo, V. ;

Lourenco, C. ;

Maltoni, F. ;

Mocsy, A. ;

Mussa, R. ;

Navarra, F. S. ;

Negrini, M. ;

Nielsen, M. ;

Olsen, S. L. .

EUROPEAN PHYSICAL JOURNAL C, 2011, 71 (02) :1-178

[28] Double J/ψ production in central diffractive processes at the LHC [J].

Brenner Mariotto, C. ;

Goncalves, V. P. .

PHYSICAL REVIEW D, 2015, 91 (11)

[29] J/ψ Polarization at the Tevatron and the LHC: Nonrelativistic-QCD Factorization at the Crossroads [J].

Butenschoen, Mathias ;

Kniehl, Bernd A. .

PHYSICAL REVIEW LETTERS, 2012, 108 (17)

[30] Reconciling J/ψ Production at HERA, RHIC, Tevatron, and LHC with Nonrelativistic QCD Factorization at Next-to-Leading Order [J].

Butenschoen, Mathias ;

Kniehl, Bernd A. .

PHYSICAL REVIEW LETTERS, 2011, 106 (02)

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