Next-to-leading order QCD corrections to one-hadron production in polarized pp collisions at BNL RHIC -: art. no. 054004

被引：66

作者：

de Florian, D ^{[1
]}

机构：

[1] Univ Buenos Aires, Fac Ciencias Exactas & Nat, Dept Fis, RA-1428 Buenos Aires, DF, Argentina

来源：

PHYSICAL REVIEW D | 2003年 / 67卷 / 05期

关键词：

D O I：

10.1103/PhysRevD.67.054004

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We calculate the next-to-leading order (NLO) QCD corrections to the spin-dependent cross section for single-inclusive-hadron production in hadronic collisions. This process will be soon studied experimentally at the BNL Relativistic Heavy Ion Collider, providing a tool to unveil the polarized gluon distribution Deltag. We observe a considerable improvement in the perturbative stability for both unpolarized and polarized cross sections. The NLO corrections are found to be nontrivial, resulting in a reduction of the asymmetry.

引用

页数：7

共 42 条

[1] Determination of the Bjorken sum and strong coupling from polarized structure functions [J].

Altarelli, G ;

Ball, RD ;

Forte, S ;

Ridolfi, G .

NUCLEAR PHYSICS B, 1997, 496 (1-2) :337-357

[2] QCD CORRECTIONS TO PARTON PARTON SCATTERING PROCESSES [J].

AVERSA, F ;

CHIAPPETTA, P ;

GRECO, M ;

GUILLET, JP .

NUCLEAR PHYSICS B, 1989, 327 (01) :105-143

[3] THE COMPUTATION OF LOOP AMPLITUDES IN GAUGE-THEORIES [J].

BERN, Z ;

KOSOWER, DA .

NUCLEAR PHYSICS B, 1992, 379 (03) :451-561

[4] PION AND KAON PRODUCTION IN E(+)E(-) AND EP COLLISIONS AT NEXT-TO-LEADING ORDER [J].

BINNEWIES, J ;

KNIEHL, BA ;

KRAMER, G .

PHYSICAL REVIEW D, 1995, 52 (09) :4947-4960

[5] QCD analysis of polarized deep-inelastic scattering data and parton distributions [J].

Blümlein, J ;

Böttcher, H .

NUCLEAR PHYSICS B, 2002, 636 (1-2) :225-263

[6] Next-to-leading order QCD corrections to the polarized hadroproduction of heavy flavors [J].

Bojak, I ;

Stratmann, M .

PHYSICAL REVIEW D, 2003, 67 (03)

[7] Next-to-leading order determination of fragmentation functions [J].

Bourhis, L ;

Fontannaz, M ;

Guillet, JP ;

Werlen, M .

EUROPEAN PHYSICAL JOURNAL C, 2001, 19 (01) :89-98

[8] A statistical approach for polarized parton distributions [J].

Bourrely, C ;

Soffer, J ;

Buccella, F .

EUROPEAN PHYSICAL JOURNAL C, 2002, 23 (03) :487-501

[9] Prospects for spin physics at RHIC [J].

Bunce, G ;

Saito, N ;

Soffer, J ;

Vogelsan, W .

ANNUAL REVIEW OF NUCLEAR AND PARTICLE SCIENCE, 2000, 50 :525-575

[10] A general algorithm for calculating jet cross sections in NLO QCD (vol 485 pg 291, 1997) [J].

Catani, S ;

Seymour, MH .

NUCLEAR PHYSICS B, 1998, 510 (1-2) :503-504

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