2018/05/31 by Marco Bonvini
Physics and Astronomy · #Electroweak interaction #Gluon #HERA #Hadron #Higgs boson #High-Energy Particle Collisions Research #Large Hadron Collider #Nuclear physics #Particle physics #Particle physics theoretical and experimental studies #Parton #Phenomenology (philosophy) #Physics #Physics beyond the Standard Model #Quantum Chromodynamics and Particle Interactions #Quantum chromodynamics #Resummation #Tevatron #hep-ph
paper · pdf · doi:10.1140/epjc/s10052-018-6315-x
published as Eur. Phys. J. C (2018) 78: 834 · 42 pages, 8 figures. Added new Fig 6 and some discussions. Final version published in EPJC
openalex created_date 2018/06/01 · openalex publication_date 2018/10/01 · arxiv created 2018/10/17 · arxiv updated 2018/10/18 · openalex updated_date 2026/08/05
Small-x resummation has been proven recently to be a crucial ingredient for describing small-x HERA data, and the inclusion of small-x resummation in parton distribution function (PDF) determination has a sizeable effect on the PDFs even at the electroweak scale. In this work we explore the implications of small-x resummation at the large hadron collider (LHC) and at a future circular collider (FCC). We construct the theoretical machinery for resumming physical inclusive observables at hadron colliders, and describe its implementation in the public code HELL 3.0. We focus on Higgs production in gluon fusion as a prototypical example, both because it is sensitive to small-x gluons and because of its importance for the LHC physics programme. We find that adding small-x resummation to the \hbox N3 LO Higgs production cross section can lead to an increase of up to 10% at FCC, while the effect is smaller ( +1% ) at LHC but still important to achieve a high level of precision.