31st International Workshop on Deep Inelastic Scattering

Towards Higgs and Z boson plus jet distributions at NLL/NLO+

9 avr. 2024, 10:20

20m

Maison MINATEC, Grenoble, FRANCE

Regular parallel talk WG3: Electroweak Physics and Beyond the Standard Model WG3

Orateur

Francesco Giovanni Celiberto (UAH Madrid)

Description

Recent analyses on high-energy inclusive Higgs-boson rates in proton collisions, matched with the state of-the-art fixed-order N${}^3$LO accuracy, have shown that the impact of high-energy resummation corrections reaches 10% at the FCC nominal energies. This supports the statement that electroweak physics at 100 TeV is expected to receive relevant contributions from small-$x$ physics. In this talk we will present novel predictions for rapidity and transverse-momentum distributions sensitive to the emission of a Higgs boson accompanied by a jet in proton collisions, calculated within the NLO fixed order in QCD and matched with the next-to leading energy-logarithmic accuracy and beyond (NLL/NLO${}^{+}$). We will also highlight first advancements in the extension of our analysis to the $Z$-boson case. According to our knowledge, this represent a first and novel implementation of a matching procedure in the context of the high-energy resummation for rapidity-separated two-particle final states. We come out with the message that the improvement of fixed-order calculations on Higgs- and Z-boson plus jet distributions is a core ingredient to reach the precision level of the description of observables relevant for Higgs and electroweak physics at current LHC energies as well as at nominal FCC ones.

Documents de présentation

talk_DIS_2024_HZ-jet_NLL-NLO_Celiberto.pdf