Possible solution of the quarkonium polarization problem

被引：12

作者：

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

机构：

[1] PN Lebedev Phys Inst, Lenin Ave 53, Moscow 119991, Russia

来源：

PHYSICAL REVIEW D | 2016年 / 93卷 / 05期

关键词：

SMALL-X PHENOMENOLOGY; J-PSI; HADRONIC PRODUCTION; GLUON; QCD; DISTRIBUTIONS; CHARMONIUM; UPSILON; LHC;

D O I：

10.1103/PhysRevD.93.054037

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We address the problem of J/psi spin alignment in hadron-hadron collisions and propose a natural solution to it using an extended nonrelativistic QCD model where the emission of soft gluons is treated as a series of explicit color-electric dipole transitions.

引用

页数：5

共 25 条

[1] Small-x phenomenology -: Summary of the 3rd Lund small-x workshop in 2004 [J].

Andersen, J. R. ;

Baranov, S. ;

Bartels, J. ;

Barnafoldi, G. G. ;

Chachamis, G. ;

Collins, J. ;

Grindhammer, G. ;

Gustafson, G. ;

Hansson, M. ;

Ingelman, G. ;

Jung, H. ;

Jonsson, L. ;

Knutsson, A. ;

Kowalski, H. ;

Kutak, K. ;

Kyrieleis, A. ;

Levai, P. ;

Lipatov, A. ;

Lonnblad, L. ;

Lublinsky, M. ;

Marchesini, G. ;

Milcewicz, I. ;

Risler, C. ;

Sabio-Vera, A. ;

Sjodahl, M. ;

Stasto, A. ;

Turnau, J. ;

Watt, G. ;

Zotov, N. .

EUROPEAN PHYSICAL JOURNAL C, 2006, 48 (01) :53-105

[2] Small-x phenomenology -: summary and status 2002 [J].

Andersen, JR ;

Baranov, S ;

Collins, J ;

Dokshitzer, Y ;

Goerlich, L ;

Grindhammer, G ;

Gustafson, G ;

Jönsson, L ;

Jung, H ;

Kwiecinski, J ;

Levin, E ;

Lipatov, A ;

Lonnblad, L ;

Lublinsky, M ;

Maul, M ;

Milcewicz, I ;

Miu, G ;

Nowak, G ;

Sjöstrand, T ;

Stasto, A ;

Tîmneanu, N ;

Turnau, J ;

Zotov, N .

EUROPEAN PHYSICAL JOURNAL C, 2004, 35 (01) :67-98

[3] Small x phenomenology:: summary and status [J].

Andersson, B ;

Baranov, S ;

Bartels, J ;

Ciafaloni, M ;

Collins, J ;

Davidsson, M ;

Gustafson, G ;

Jung, H ;

Jönsson, L ;

Karlsson, M ;

Kimber, M ;

Kotikov, A ;

Kwiecnski, J ;

Lönnblad, L ;

Miu, G ;

Salam, G ;

Seymour, MH ;

Sjöstrand, T ;

Zotov, N .

EUROPEAN PHYSICAL JOURNAL C, 2002, 25 (01) :77-101

[4]

[Anonymous], 1996, P 2 WORKSH CONT ADV

[5] HADRONIC PRODUCTION OF J-PSI AND UPSILON - TRANSVERSE-MOMENTUM DISTRIBUTIONS [J].

BAIER, R ;

RUCKL, R .

PHYSICS LETTERS B, 1981, 102 (05) :364-370

[6]

Baranov SP, 2015, EUR PHYS J C, V75, DOI 10.1140/epjc/s10052-015-3689-x

[7] Kinematic corrections to quarkonium production in the nonrelativistic QCD approach [J].

Baranov, S. P. .

PHYSICAL REVIEW D, 2015, 91 (03)

[8] Highlights from the kT-factorization approach on the quarkonium production puzzles -: art. no. 114003 [J].

Baranov, SP .

PHYSICAL REVIEW D, 2002, 66 (11)

[9] CHI-CHARMONIUM - A TOOL TO INVESTIGATE GLUON POLARIZATION [J].

BATUNIN, AV ;

SLABOSPITSKY, SR .

PHYSICS LETTERS B, 1987, 188 (02) :269-271

[10] Kinematic enhancement of non-perturbative corrections to quarkonium production [J].

Beneke, M ;

Rothstein, IZ ;

Wise, MB .

PHYSICS LETTERS B, 1997, 408 (1-4) :373-380

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