Volume 469 - 31st International Workshop on Deep Inelastic Scattering (DIS2024) - WG2: Small-x, Diffraction and Vector Mesons
Higgs production at NLL accuracy in the BFKL approach
F.G. Celiberto*, L. Delle Rose, M. Fucilla, G. Gatto, D.Y. Ivanov, M.M.A. Mohammed and A. Papa
*: corresponding author
Full text: pdf
Pre-published on: December 27, 2024
Published on: January 16, 2025
Abstract
Precision physics in the Higgs sector has been one of the main challenges of particle physics in the recent years. The pure fixed-order calculations entering the collinear factorization framework, which have been pushed up to next-cube-leading-order, are not able to describe the entire kinematic spectrum. In particular sectors, they have to be necessarily enhanced by all-order resummations. In the so-called semi-hard regime, large energy-type logarithms spoil the perturbative convergence of the series and must be resummed to all orders. This resummation is a core ingredient for a correct description of the inclusive hadroproduction of a forward Higgs boson in the limit of small Bjorken $x$, as well as for a precision study of inclusive forward emissions of a Higgs boson in association with a backward identified object. A complete resummation for these processes can be achieved at the at next-to-leading logarithmic accuracy thanks to the Balitsky--Fadin--Kuraev--Lipatov approach. In the present work we present and discuss a series of recent phenomenological results within a partial next-to-leading accuracy. They include the analysis of rapidity and azimuthal-angle differential rates for Higgs plus jet and Higgs plus charm reactions in forward and ultraforward directions of rapidity at the LHC.
DOI: https://doi.org/10.22323/1.469.0101
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