Zobrazeno 1 - 10
of 315
pro vyhledávání: '"gluon: Regge"'
Autor:
Caola, Fabrizio, Chakraborty, Amlan, Gambuti, Giulio, von Manteuffel, Andreas, Tancredi, Lorenzo
We compute the three-loop helicity amplitudes for the scattering of four gluons in QCD. We employ projectors in the 't Hooft-Veltman scheme and construct the amplitudes from a minimal set of physical building blocks, which allows us to keep the compu
Externí odkaz:
http://arxiv.org/abs/2112.11097
We compute the three-loop leading-colour corrections to the Yang-Mills Regge trajectory and gluon impact factor. Conjecturing that, in analogy with $\mathcal{N}=4$ super Yang-Mills (SYM), in a suitable scheme $N_c$-subleading terms are absent from th
Externí odkaz:
http://arxiv.org/abs/2111.14265
Publikováno v:
Journal of High Energy Physics, Vol 2022, Iss 1, Pp 1-15 (2022)
Abstract We compute the three-loop leading-colour corrections to the Yang-Mills Regge trajectory and gluon impact factor. Conjecturing that, in analogy with N $$ \mathcal{N} $$ = 4 super Yang-Mills (SYM), in a suitable scheme N c -subleading terms ar
Externí odkaz:
https://doaj.org/article/7980166f43064aedac652fa81d1a7869
Akademický článek
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We discuss computational details of our recent result, namely, the first derivation of the two-loop gluon Regge trajectory within the framework of Lipatov's high energy effective action. In particular, we elaborate on the direct evaluation of Feynman
Externí odkaz:
http://arxiv.org/abs/1307.7741
We present the derivation of the two-loop gluon Regge trajectory using Lipatov's high energy effective action and a direct evaluation of Feynman diagrams. Using a gauge invariant regularization of high energy divergences by deforming the light-cone v
Externí odkaz:
http://arxiv.org/abs/1307.2591
Akademický článek
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We review Lipatov's high energy effective action and show that it is a useful computational tool to calculate scattering amplitudes in (quasi)-multi-Regge kinematics. We explain in some detail our recent work where a novel regularization and subtract
Externí odkaz:
http://arxiv.org/abs/1211.2050
Lipatov's high-energy effective action is a useful tool for computations in the Regge limit beyond leading order. Recently, a regularisation/subtraction prescription has been proposed that allows to apply this formalism to calculate next-to-leading o
Externí odkaz:
http://arxiv.org/abs/1206.5101
The two loop (NLO) diagrams with quark content contributing to the gluon Regge trajectory are computed within the framework of Lipatov's effective action for QCD, using the regularization procedure for longitudinal divergencies recently proposed by t
Externí odkaz:
http://arxiv.org/abs/1202.0649