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We study the exclusive, double--diffractive production of the Standard Model Higgs particle in hadronic collisions at LHC and FNAL (upgraded) energies. Such a mechanism would provide an exceptionally clean signal for experimental detection…

High Energy Physics - Phenomenology · Physics 2010-11-01 Hung Jung Lu , Joseph Milana

We present the next-to-next-to-leading order (NNLO) QCD corrections to dijet production in the purely gluonic channel retaining the full dependence on the number of colours. The sub-leading colour contribution in this channel first appears…

High Energy Physics - Phenomenology · Physics 2015-06-17 James Currie , Aude Gehrmann-De Ridder , E. W. N. Glover , Joao Pires

We compute the next-to-next-to-leading order (NNLO) QCD correction to the total cross-section for the reaction gg \to t\bar t + X. Together with the partonic channels we computed previously, the result derived in this letter completes the…

High Energy Physics - Phenomenology · Physics 2013-08-06 Michal Czakon , Paul Fiedler , Alexander Mitov

We investigate the production of the pseudoscalar Higgs boson $A$ at muon colliders within the framework of Type-II and Type-X Two-Higgs-Doublet Model (2HDM) at the Next-to-Leading Order (NLO), utilizing an Effective Field Theory (EFT)…

High Energy Physics - Phenomenology · Physics 2025-05-06 Fayez Abu-Ajamieh , Sagar Modak , Samadrita Mukherjee , Sudhir K Vempati

If the lighter top squark has no kinematically allowed two-body decays that conserve flavor, then it will live long enough to form hadronic bound states. The observation of the diphoton decays of stoponium could then provide a uniquely…

High Energy Physics - Phenomenology · Physics 2010-04-29 James E. Younkin , Stephen P. Martin

The Higgs boson production associated with a $W$-boson and a photon at the Large Hadron Collider (LHC) can be used to probe the coupling between Higgs boson and vector gauge bosons and discover a signature of new physics. We present the…

High Energy Physics - Phenomenology · Physics 2013-10-04 Song Mao , Wan Neng , Li Gang , Ma Wen-Gan , Zhang Ren-You , Guo Lei , Zhou Ya-Jin , Guo Jian-You

We study the transverse-momentum (q_T) and rapidity (y) distributions of the Higgs boson in perturbative QCD, including the most advanced theoretical information presently available: fixed-order perturbation theory at Next-to-Leading Order…

High Energy Physics - Phenomenology · Physics 2009-11-13 Giuseppe Bozzi

We propose a new approach to the resummation of the transverse-momentum distribution of a high-mass colour-singlet system in hadronic collisions. The resummation is performed in momentum space and is free of kinematic singularities at small…

High Energy Physics - Phenomenology · Physics 2016-06-22 Pier Francesco Monni , Emanuele Re , Paolo Torrielli

I present a unified calculation of soft-gluon corrections to hard-scattering cross sections through next-to-next-to-next-to-leading order (NNNLO). Master formulas are derived, from a threshold resummation formalism, that can be applied to…

High Energy Physics - Phenomenology · Physics 2013-05-29 Nikolaos Kidonakis

We calculate the next-to-next-to-next-to-leading-order (N$^3$LO) QCD corrections to inclusive vector-boson fusion (VBF) Higgs production at proton colliders, in the limit in which there is no colour exchange between the hadronic systems…

High Energy Physics - Phenomenology · Physics 2016-08-17 Frédéric A. Dreyer , Alexander Karlberg

A finite-dimensional matrix model for the nucleon-nucleon cross section operator is used to calculate the dispersive correction to nucleon-nucleus total cross sections, and the leading terms in its expansion in the number of inelastic…

Nuclear Theory · Physics 2007-05-23 David R. Harrington

We compute the cross section and differential distributions for the production of a Z boson in association with a hadronic jet to next-to-next-to-leading order (NNLO) in perturbative QCD, including the leptonic decay of the Z boson. We…

High Energy Physics - Phenomenology · Physics 2016-07-13 A. Gehrmann-De Ridder , T. Gehrmann , E. W. N. Glover , A. Huss , T. A. Morgan

In this contribution we consider NNLO real radiation corrections to the total cross section for Higgs boson pair production in gluon fusion. Special emphasis is put on the cross check of the asymptotic expansion in the inverse top quark…

High Energy Physics - Phenomenology · Physics 2019-12-05 Joshua Davies , Florian Herren , Go Mishima , Matthias Steinhauser

An approximate expression for the inclusive Higgs production cross section in gluon fusion at NNNLO in QCD with finite top mass is presented. We argue that an accurate approximation can be constructed combining (and improving) the large-…

High Energy Physics - Phenomenology · Physics 2015-06-16 Marco Bonvini

We use techniques from soft-collinear effective theory (SCET) to derive renormalization-group improved predictions for single-particle inclusive (1PI) observables in top-quark pair production at hadron colliders. In particular, we study the…

High Energy Physics - Phenomenology · Physics 2015-05-27 V. Ahrens , A. Ferroglia , M. Neubert , B. D. Pecjak , L. L. Yang

We compute the unpolarized quark and gluon transverse-momentum dependent fragmentation functions (TMDFFs) at next-to-next-to-next-to-leading order (N$^3$LO) in perturbative QCD. The calculation is based on a relation between the TMDFF and…

High Energy Physics - Phenomenology · Physics 2021-07-21 Markus A. Ebert , Bernhard Mistlberger , Gherardo Vita

We report on a successful attempt to extract the cross-section for the high-energy scattering of colour dipoles of fixed transverse size off protons using electroproduction and photoproduction total cross-section data, subject to the…

High Energy Physics - Phenomenology · Physics 2008-11-26 J. R. Forshaw , G. Kerley , G. Shaw

In [arXiv:0804.2630], we have analyzed the leading logarithms of energy that appear in the inclusive spectrum of gluons produced in heavy ion collisions, calculated in the Color Glass Condensate framework. The main result of this paper was…

High Energy Physics - Phenomenology · Physics 2013-03-14 F. Gelis , J. Laidet

We present NNLOCAL, a proof-of-concept parton-level Monte Carlo program implementing the extension of the completely local subtraction scheme CoLoRFulNNLO to the case of color-singlet production in hadron collisions. We have built general…

High Energy Physics - Phenomenology · Physics 2025-05-21 V. Del Duca , C. Duhr , L. Fekésházy , F. Guadagni , P. Mukherjee , G. Somogyi , F. Tramontano , S. Van Thurenhout

We present some preliminary results on the next-to-leading order calculation in QCD of quarkonium production cross sections in hadronic collisions. We will show that the NLO total cross sections for $P$-wave states produced at high energy…

High Energy Physics - Phenomenology · Physics 2011-04-15 M. L. Mangano , A. Petrelli