All-plus helicity off-shell gauge invariant multigluon amplitudes at one loop

被引:10
|
作者
Blanco, Etienne [1 ]
van Hameren, Andreas [1 ]
Kotko, Piotr [2 ]
Kutak, Krzysztof [1 ]
机构
[1] Polish Acad Sci, Inst Nucl Phys, Radzikowskiego 152, PL-342 Krakow, Poland
[2] AGH Univ Sci & Technol, Fac Phys, Mickiewicza 30, PL-30059 Krakow, Poland
关键词
Scattering Amplitudes; Perturbative QCD; COLOR GLASS CONDENSATE; NONLINEAR GLUON EVOLUTION; JET PRODUCTION; BFKL EQUATION; ENERGY; COLLISIONS; RAPIDITY; POMERON; SINGLE; NLO;
D O I
10.1007/JHEP12(2020)158
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
We calculate one loop scattering amplitudes for arbitrary number of positive helicity on-shell gluons and one off-shell gluon treated within the quasi-multi Regge kinematics. The result is fully gauge invariant and possesses the correct on-shell limit. Our method is based on embedding the off-shell process, together with contributions needed to retain gauge invariance, in a bigger fully on-shell process with auxiliary quark or gluon line.
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页数:22
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