γγ total cross section in the dipole picture of BFKL dynamics

被引：47

作者：

Boonekamp, M ^{[1
]}

De Roeck, A

Royon, C

Wallon, S

机构：

[1] CEA Saclay, Serv Phys Particules, DAPNIA, F-91191 Gif Sur Yvette, France

[2] DESY, D-22603 Hamburg, Germany

[3] CERN, CH-1211 Geneva, Switzerland

[4] Univ Paris 11, Div Phys Theor, Inst Phys Nucl Orsay, Unite Rech,CNRS, F-91406 Orsay, France

[5] Univ Paris 06, Div Phys Theor, Inst Phys Nucl Orsay, Unite Rech,CNRS, F-91406 Orsay, France

[6] Univ Paris 06, Lab Phys Theor Particules Elementaires, F-75252 Paris 05, France

来源：

NUCLEAR PHYSICS B | 1999年 / 555卷 / 03期

关键词：

D O I：

10.1016/S0550-3213(99)00345-4

中图分类号：

O412 [相对论、场论]; O572.2 [粒子物理学];

学科分类号：

摘要：

The total gamma*gamma* cross section is derived in the leading order QCD dipole picture of BFKL dynamics, and compared with the one from two-gluon exchange. The double leading logarithm approximation of Me DGLAP cross section is found to be small in the phase space studied. Cross sections are calculated for realistic data samples at the e(+)e(-) collider-LEP and a future high energy linear collider. Next to leading order corrections to the BFKL evolution have been determined phenomenologically, and are found to give very large corrections to the BFKL cross section, leading to a reduced sensitivity for observing BFKL effects. (C) 1999 Published by Elsevier Science B.V. All rights reserved.

引用

页码：540 / 564

页数：25

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γ*γ* total cross section in the dipole picture of BFKL dynamics

γγ total cross section in the dipole picture of BFKL dynamics