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Three extensions of the scalar sector of the Standard Model are considered: one extra isosinglet, one extra isotriplet, two extra isotriplets (the Georgi-Machacek model). Double Higgs boson production cross section is calculated in all…

高能物理 - 唯象学 · 物理学 2015-10-09 E. V. Zhemchugov

We present a detailed phenomenological analysis of the production of a Standard Model Higgs boson in association with up to three jets. The Higgs is produced via gluon fusion, which is an irreducible background to the vector boson fusion…

高能物理 - 唯象学 · 物理学 2016-01-15 Nicolas Greiner , Stefan Hoeche , Gionata Luisoni , Marek Schonherr , Jan-Christopher Winter , Valery Yundin

We obtain the general expression of the gluon propagator at finite temperature ($T$) and in a magnetic field ($B$), for the case that the four transverse tensor structures appear in the gluon self-energy. By using this expression and a…

高能物理 - 唯象学 · 物理学 2018-02-07 Koichi Hattori , Daisuke Satow

We present for the first time the inclusive cross section for associated Higgs boson production with a massive gauge boson at next-to-next-to-next-to-leading order in QCD. Furthermore, we introduce n3loxs, a public, numerical program for…

高能物理 - 唯象学 · 物理学 2022-12-28 Julien Baglio , Claude Duhr , Bernhard Mistlberger , Robert Szafron

Massless diquark jet and gluon jet productions at large transverse momentum in the coherent diffractive processes at hadron colliders are studied in the two-gluon exchange parametrization of the Pomeron model. We use the helicity amplitude…

高能物理 - 唯象学 · 物理学 2009-10-31 Feng Yuan , Kuang-Ta Chao

In this article, we compute the gluon fusion Higgs boson cross-section at N3LO through the second term in the threshold expansion. This calculation constitutes a major milestone towards the full N3LO cross section. Our result has the best…

The factorisation of QCD matrix elements in the limit of two external partons becoming collinear is described by process-independent splitting amplitudes, which can be expanded systematically in perturbation theory. Working in conventional…

高能物理 - 唯象学 · 物理学 2015-06-23 Claude Duhr , Thomas Gehrmann , Matthieu Jaquier

We propose exclusive diffractive dijet photoproduction as an ideal measure of the off-diagonal gluon distribution at high scales. We solve the off-diagonal evolution equations for the gluon and quark singlet over the full kinematic domain.…

高能物理 - 唯象学 · 物理学 2010-03-25 K. Golec-Biernat , J. Kwiecinski , A. D. Martin

The inclusive production of the gauge bosons $W^{\pm}$ and $Z^0$ is studied within the color dipole formalism. Gluon saturation effects associated to non-linear corrections to the QCD dynamics, which are expected to contribute at high…

高能物理 - 唯象学 · 物理学 2015-06-23 E. A. F. Basso , V. P. Goncalves , M. Rangel

Higgs-pair production via gluon fusion is the dominant production mechanism of Higgs-boson pairs at hadron colliders. In this work, we present details of our numerical determination of the full next-to-leading-order (NLO) QCD corrections to…

高能物理 - 唯象学 · 物理学 2020-05-01 J. Baglio , F. Campanario , S. Glaus , M. M. Muhlleitner , J. Ronca , M. Spira , J. Streicher

We compute dijet production in Deep Inelastic Scattering at low $x$ in the dipole formalism at next-to-eikonal accuracy. We calculate the contributions induced by single photon exchange of either longitudinal or transverse polarization. We…

高能物理 - 唯象学 · 物理学 2023-10-06 Tolga Altinoluk , Guillaume Beuf , Alina Czajka , Arantxa Tymowska

We compute the two-loop electroweak corrections due to the top quark to the gluon fusion production cross section of an intermediate-mass Higgs boson. This result, together with the previously known contribution due to the light fermions,…

高能物理 - 唯象学 · 物理学 2011-01-13 Giuseppe Degrassi , Fabio Maltoni

A high energy jet that propagates in a dense medium generates a cascade of partons that can be described as a classical branching process. A simple generating functional for the probabilities to observe a given number of gluons at a given…

高能物理 - 唯象学 · 物理学 2015-06-18 Jean-Paul Blaizot , Fabio Dominguez , Edmond Iancu , Yacine Mehtar-Tani

We discuss cross sections for $tW$ production in proton-proton collisions at the LHC and at higher-energy colliders with energies of up to 100 TeV. We find that, remarkably, the soft-gluon corrections are numerically dominant even at very…

高能物理 - 唯象学 · 物理学 2021-06-16 Nikolaos Kidonakis , Nodoka Yamanaka

We discuss Drell-Yan production of dileptons at high energies in forward rapidity region in a hybrid high-energy approach. This approach uses unintegrated gluon distributions in one proton and collinear quark/antiquark distributions in the…

高能物理 - 唯象学 · 物理学 2016-04-20 Wolfgang Schäfer , Antoni Szczurek

We present a calculation of the fully differential cross section for Higgs boson production in the gluon fusion channel through next-to-next-to-leading order in perturbative QCD. We apply the method introduced in \cite{Anastasiou:2003gr} to…

高能物理 - 唯象学 · 物理学 2010-04-06 Charalampos Anastasiou , Kirill Melnikov , Frank Petriello

We show how it is possible to rewrite the BFKL equation for the unintegrated gluon distribution, in terms of integrated gluons, similar to that used in DGLAP. We add to our equation the next-to-leading log terms which provide exact…

高能物理 - 唯象学 · 物理学 2015-06-19 E. G. de Oliveira , A. D. Martin , M. G. Ryskin

We compute the 3-loop O(\alpha \alpha_s) correction to the Higgs boson production cross section arising from light quarks using an effective theory approach. Our calculation probes the factorization of QCD and electroweak perturbative…

高能物理 - 唯象学 · 物理学 2010-01-15 Charalampos Anastasiou , Radja Boughezal , Frank Petriello

The observational consequences of certain broken symmetries in a thermalised quark gluon plasma are elucidated. The signature under study is the spectrum of dileptons radiating from the plasma, through gluon fusion. Being a pure medium…

高能物理 - 唯象学 · 物理学 2010-01-15 A. Majumder , A. Bourque , C. Gale

We identify the differential cross sections for $t\bar t$ production and the total cross section for Higgs production through gluon fusion as the processes in which the two effective operators describing the leading non-standard…

高能物理 - 唯象学 · 物理学 2017-10-25 D. Barducci , M. Fabbrichesi , A. Tonero