A new subtraction scheme at NLO exploiting the privilege of kT-factorization

A bstract We present a subtraction method for the calculation of real-radiation integrals at NLO in hybrid k T -factorization. The main difference with existing methods for collinear factorization is that we subtract the momentum recoil, occurring due to the mapping from an ( n + 1)-particle phase s...

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Bibliographic Details
Published inThe journal of high energy physics Vol. 2024; no. 6; pp. 167 - 39
Main Authors Giachino, Alessandro, van Hameren, Andreas, Ziarko, Grzegorz
Format Journal Article
LanguageEnglish
Published Berlin/Heidelberg Springer Berlin Heidelberg 25.06.2024
Springer Nature B.V
SpringerOpen
Subjects
Classical and Quantum Gravitation
Deep Inelastic Scattering or Small-x Physics
Elementary Particles
Factorization
Higher-Order Perturbative Calculations
Integrals
Kinematics
Physics
Physics and Astronomy
Quantum Field Theories
Quantum Field Theory
Quantum Physics
Radiation
Regular Article - Theoretical Physics
Relativity Theory
Renormalization Group
String Theory
Renormalization Group
Factorization
Deep Inelastic Scattering or Small-x Physics
Higher-Order Perturbative Calculations
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Summary:A bstract We present a subtraction method for the calculation of real-radiation integrals at NLO in hybrid k T -factorization. The main difference with existing methods for collinear factorization is that we subtract the momentum recoil, occurring due to the mapping from an ( n + 1)-particle phase space to an n -particle phase space, from the initial-state momenta, instead of distributing it over the final-state momenta.
ISSN:1029-8479
1029-8479
DOI:10.1007/JHEP06(2024)167