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We present the analytic calculation of the leading order three-point energy correlator (EEEC) in hadronic Higgs decays, including both gluon-initiated channel $H\rightarrow g g+X$ and quark-initiated channel $H\rightarrow q\bar q+X$. The…

High Energy Physics - Phenomenology · Physics 2024-11-28 Tong-Zhi Yang , Xiaoyuan Zhang

Perturbative QCD corrections to hadronic $\tau$ decays and $e^+e^-$ annihilation into hadrons below charm are obtained from the Adler function, which at present is known in the chiral limit to five-loop accuracy. Extractions of the strong…

High Energy Physics - Phenomenology · Physics 2018-08-29 Diogo Boito , Pere Masjuan , Fabio Oliani

A program for the calculation of the total Higgs production cross section via gluon fusion at hadron colliders including next--to--leading order QCD corrections is presented. It is suitable especially for Standard Model Higgs bosons and the…

High Energy Physics - Phenomenology · Physics 2007-05-23 M. Spira

We consider the production of a Standard Model Higgs boson decaying to bottom quarks in association with a vector boson W/Z in hadron collisions. We present a fully exclusive calculation of QCD radiative corrections both for the production…

High Energy Physics - Phenomenology · Physics 2018-04-16 Giancarlo Ferrera , Gábor Somogyi , Francesco Tramontano

We present precise predictions for the hadronic production of an on-shell Higgs boson in association with a leptonically decaying gauge boson and a jet up to order $\alpha_s^3$. We include the complete set of NNLO QCD corrections to both…

High Energy Physics - Phenomenology · Physics 2022-03-28 R. Gauld , A. Gehrmann-De Ridder , E. W. N. Glover , A. Huss , I. Majer

We present the analytic calculation of the two-loop QCD corrections to the decay width of a Higgs boson into a photon and a $Z$ boson. The calculation is carried out using integration-by-parts identities for the reduction to master…

High Energy Physics - Phenomenology · Physics 2015-09-30 R. Bonciani , V. Del Duca , H. Frellesvig , J. M. Henn , F. Moriello , V. A. Smirnov

We present a comprehensive investigation of next-to-leading order (NLO) quantum chromodynamics (QCD) corrections to Higgs boson pair production and the subsequent decay into $b\bar{b}\tau^+ \tau^-$. We adopt the narrow-width approximation…

High Energy Physics - Phenomenology · Physics 2025-08-18 Hai Tao Li , Zong-Guo Si , Jian Wang , Xiao Zhang , Dan Zhao

We study the six classical event-shape observables in hadronic Higgs decays at next-to-leading order in QCD. To this end, we consider the decay of on-shell Higgs bosons to three partons, taking into account both the Yukawa-induced decay to…

High Energy Physics - Phenomenology · Physics 2022-06-22 Guglielmo Coloretti , Aude Gehrmann-De Ridder , Christian T Preuss

The computation of the NLO QCD corrections to the cross sections for W+W- gamma and ZZgamma production in hadronic collisions is presented. We consider the case of a real photon in the final state, but include full leptonic decays of the W…

High Energy Physics - Phenomenology · Physics 2014-11-20 G. Bozzi , F. Campanario , V. Hankele , D. Zeppenfeld

We consider the impact of O(alpha^2) hadronic corrections to the energy spectrum of the decay electron in muon decay. We find that the correction can be described, within good approximation, by a linear function in the electron energy.…

High Energy Physics - Phenomenology · Physics 2009-01-07 A. I. Davydychev , K. Schilcher , H. Spiesberger

In a recent letter [Phys. Rev. Lett. 108, 172003 (2012), arXiv:1109.2480] we have reported on a lattice QCD calculation of the heavy-hadron axial couplings $g_1$, $g_2$, and $g_3$. These quantities are low-energy constants of heavy-hadron…

High Energy Physics - Lattice · Physics 2012-06-19 William Detmold , C. -J. David Lin , Stefan Meinel

This document collects a written summary of all contributions presented at the workshop "$\alpha_s$(2019): Precision measurements of the strong coupling" held at ECT* (Trento) in Feb. 11--15, 2019. The workshop explored in depth the latest…

In this contribution to the Proceedings of the US Community Study on the Future of Particle Physics (Snowmass 2021) we review recent progress in the evaluation and application of the Energy-Energy Correlator (EEC) event shape observable in…

High Energy Physics - Phenomenology · Physics 2022-03-15 Duff Neill , Gherardo Vita , Ivan Vitev , Hua Xing Zhu

We compute the one-loop QCD amplitudes for the decay of an off-shell vector boson with vector couplings into a quark-antiquark pair accompanied by two gluons keeping, for the first time, all orders in the number of colours. Together with…

High Energy Physics - Phenomenology · Physics 2008-11-26 J. M. Campbell , E. W. N. Glover , D. J. Miller

We present a new program (iHixs) which computes the inclusive Higgs boson cross-section at hadron colliders. It incorporates QCD corrections through NNLO, real and virtual electroweak corrections, mixed QCD-electroweak corrections,…

High Energy Physics - Phenomenology · Physics 2011-12-23 Charalampos Anastasiou , Stephan Buehler , Franz Herzog , Achilleas Lazopoulos

Higgs boson production in association with a hard central photon and two forward tagging jets is expected to provide valuable information on Higgs boson couplings in a range where it is difficult to disentangle weak-boson fusion processes…

High Energy Physics - Phenomenology · Physics 2014-11-21 Ken Arnold , Terrance Figy , Barbara Jager , Dieter Zeppenfeld

In this paper we show that the excess of the tau tau events with respect to the Standard Model background predictions, observed by the ATLAS and CMS collaborations and interpreted as the evidence of the Higgs-boson decay into a pair of…

High Energy Physics - Phenomenology · Physics 2016-04-27 Mieczyslaw Witold Krasny , Stanislaw Jadach , Wieslaw Placzek

Understanding the polarisation structure and providing precise predictions for multi-boson processes at the LHC is becoming urgent in the light of the upcoming run-3 and high-luminosity data. The CMS and ATLAS collaborations have already…

High Energy Physics - Phenomenology · Physics 2023-03-27 Ansgar Denner , Christoph Haitz , Giovanni Pelliccioli

An analytical approach is applied to the calculation of some dimensionally-regulated two-loop vertex diagrams with essential on-shell singularities. Such diagrams are important for the evaluation of QED corrections to the muon decay, QCD…

High Energy Physics - Phenomenology · Physics 2007-05-23 A. I. Davydychev , V. A. Smirnov

The exclusive production of $J/\psi$ through Higgs boson radiative decay may serve a clean channel to extracting the charm quark Yukawa coupling. We calculate the two-loop QCD corrections to $H\rightarrow J/\psi(\Upsilon)+\gamma$ using an…

High Energy Physics - Phenomenology · Physics 2024-09-02 Yu Jia , Zhewen Mo , Jia-Yue Zhang
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