Результаты исследований: Научные публикации в периодических изданиях › статья › Рецензирование
One-loop Lipatov vertex in QCD with higher ϵ-accuracy. / Fadin, Victor S.; Fucilla, Michael; Papa, Alessandro.
в: Journal of High Energy Physics, Том 2023, № 4, 137, 04.2023.Результаты исследований: Научные публикации в периодических изданиях › статья › Рецензирование
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TY - JOUR
T1 - One-loop Lipatov vertex in QCD with higher ϵ-accuracy
AU - Fadin, Victor S.
AU - Fucilla, Michael
AU - Papa, Alessandro
N1 - We thanks Marco Rossi, Lech Szymanowski and Samuel Wallon for useful discussions. M.F. thanks IJCLab for support while part of this work was done. M.F. and A.P acknowledge support from the INFN/QFT@COLLIDERS project.
PY - 2023/4
Y1 - 2023/4
N2 - The effective Reggeon-Reggeon-gluon vertex, known as Lipatov vertex, is the key ingredient that allows to develop the BFKL approach in QCD. Within the next-to-leading logarithmic approximation, it is sufficient to know its one-loop corrections, in dimensional regularization (D = 4 + 2ϵ), up to the constant term in the ϵ-expansion. In the next-to-next-to-leading approximation, however, the one-loop Lipatov vertex is needed up to the order ϵ 2. In this paper we present the expression for this vertex in dimensional regularization up to the required accuracy.
AB - The effective Reggeon-Reggeon-gluon vertex, known as Lipatov vertex, is the key ingredient that allows to develop the BFKL approach in QCD. Within the next-to-leading logarithmic approximation, it is sufficient to know its one-loop corrections, in dimensional regularization (D = 4 + 2ϵ), up to the constant term in the ϵ-expansion. In the next-to-next-to-leading approximation, however, the one-loop Lipatov vertex is needed up to the order ϵ 2. In this paper we present the expression for this vertex in dimensional regularization up to the required accuracy.
KW - Higher-Order Perturbative Calculations
KW - Resummation
UR - https://www.scopus.com/record/display.uri?eid=2-s2.0-85156215911&origin=inward&txGid=3381402c311844feab9762bf56af442f
UR - https://www.mendeley.com/catalogue/5d397618-1a44-3e41-9dd9-4acf8789a27a/
U2 - 10.1007/JHEP04(2023)137
DO - 10.1007/JHEP04(2023)137
M3 - Article
VL - 2023
JO - Journal of High Energy Physics
JF - Journal of High Energy Physics
SN - 1029-8479
IS - 4
M1 - 137
ER -
ID: 59248945