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Two-jet cross sections in deep inelastic scattering at HERA are calculated in next-to-leading order. The importance of higher order corrections and recombination scheme dependencies is studied for various jetalgorithms. Some implications…

高能物理 - 唯象学 · 物理学 2011-04-15 Erwin Mirkes , Dieter Zeppenfeld

We present predictions for the thrust distribution in hadronic decays of the Higgs boson at the next-to-leading order and the approximate next-to-next-to-leading order. The approximate NNLO corrections are derived from a factorization…

高能物理 - 唯象学 · 物理学 2022-07-12 Jun Gao , Yinqiang Gong , Wan-Li Ju , Li Lin Yang

The distributions of two-jet event shapes contain information on hadronization in QCD. Near the two-jet limit, these distributions can be described by convolutions of nonperturbative event shape functions with the same distributions…

高能物理 - 唯象学 · 物理学 2008-11-26 Christopher Lee , George Sterman

Crucial information on the coupling of the Higgs boson to bottom quarks is expected from Higgs production in association with a forward tagging jet at a future high-energy lepton-proton collider. In order to control the theoretical…

高能物理 - 唯象学 · 物理学 2010-05-28 B. Jager

In the cross section for single-inclusive jet production in electron-nucleon collisions, the distribution of a quark in an electron appears at next-to-next-to-leading order. The numerical calculations in Ref. [1] were carried out using a…

高能物理 - 唯象学 · 物理学 2017-03-29 Geoffrey T. Bodwin , Eric Braaten

Some of the most important probes of the quark-gluon plasma (QGP) produced in heavy ion collisions come from the analysis of how the shape and energy of jets are modified by passage through QGP. We model an ensemble of back-to-back dijets…

核理论 · 物理学 2018-03-14 Jasmine Brewer , Krishna Rajagopal , Andrey Sadofyev , Wilke van der Schee

We present improved predictions of a class of event-shape distributions called angularity for a contribution from an effective operator $H\to gg$ in Higgs hadronic decay that suffers from large perturbative uncertainties. In the frame of…

高能物理 - 唯象学 · 物理学 2024-11-22 Jiawei Zhu , Yujin Song , Jun Gao , Daekyoung Kang , Tanmay Maji

We consider the cross section for one-particle inclusive production at high transverse momentum in hadronic collisions. We present the all-order resummation formula that controls the logarithmically-enhanced perturbative QCD contributions…

高能物理 - 唯象学 · 物理学 2013-07-25 S. Catani , M. Grazzini , A. Torre

The perturbative QCD approach, based on Modified Leading Log Approximation and Local Parton Hadron Duality, is shown to describe inclusive features of multiparticle production in the soft region. Further predictions of this approach are…

高能物理 - 唯象学 · 物理学 2007-05-23 S. Lupia

We compute the cross section for the production of a high-mass photon pair in association with two hadronic jets to next-to-leading order (NLO) in quantum chromodynamics (QCD). Our results allow for the first time to reliably predict the…

高能物理 - 唯象学 · 物理学 2015-06-16 Thomas Gehrmann , Nicolas Greiner , Gudrun Heinrich

We discuss results from a recently proposed all-order description of hard, radiative corrections to certain multi-jet processes at hadron colliders. The description is based on obtaining an all-order estimate of the t-channel singularities…

高能物理 - 唯象学 · 物理学 2010-01-26 Jeppe R. Andersen , Jennifer M. Smillie

Gluon jets are identified in e+e- hadronic annihilation events by tagging two quark jets in the same hemisphere of an event. The gluon jet is defined inclusively as all the particles in the opposite hemisphere. Gluon jets defined in this…

高能物理 - 实验 · 物理学 2008-11-26 The OPAL Collaboration , K. Ackerstaff et al

For high-pT forward processes at the Large Hadron Collider (LHC), QCD logarithmic corrections in the hard transverse momentum and in the large rapidity interval may both be quantitatively significant. The theoretical framework to resum…

高能物理 - 唯象学 · 物理学 2011-01-04 M. Deak , F. Hautmann , H. Jung , K. Kutak

We present a detailed phenomenological study of W-boson production in association with a jet through next-to-next-to-leading order (NNLO) in perturbative QCD. Fiducial cross sections and differential distributions for both 8 TeV and 13 TeV…

高能物理 - 唯象学 · 物理学 2016-12-28 Radja Boughezal , Xiaohui Liu , Frank Petriello

We present theoretical predictions for five jet production in proton-proton collisions at next-to-leading order accuracy in QCD. Inclusive as well as differential observables are studied for collision energies of 7 and 8 TeV. In general the…

高能物理 - 唯象学 · 物理学 2014-02-26 Simon Badger , Benedikt Biedermann , Peter Uwer , Valery Yundin

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…

高能物理 - 唯象学 · 物理学 2016-07-13 A. Gehrmann-De Ridder , T. Gehrmann , E. W. N. Glover , A. Huss , T. A. Morgan

Jet angularities are a class of jet substructure observables where a continuous parameter is introduced in order to interpolate between different classic observables such as the jet mass and jet broadening. We consider jet angularities…

高能物理 - 唯象学 · 物理学 2019-04-29 Zhong-Bo Kang , Kyle Lee , Xiaohui Liu , Felix Ringer

We present theoretical results for the associated production of a single top quark and a $Z$ boson ($tqZ$ production) at LHC energies. We calculate higher-order corrections from soft-gluon emission for this process. We compute the…

高能物理 - 唯象学 · 物理学 2023-05-19 Nikolaos Kidonakis , Nodoka Yamanaka

We consider QCD corrections to Higgs boson production through gluon--gluon fusion in hadron collisions. We compute the cross section, performing the all-order resummation of multiple soft-gluon emission at next-to-next-to-leading…

高能物理 - 唯象学 · 物理学 2009-11-10 S. Catani , D. de Florian , M. Grazzini , P. Nason

Within the context of a hybrid strong/weak coupling model of jet quenching, we study the modification of the angular distribution of the energy within jets in heavy ion collisions, as partons within jet showers lose energy and get kicked as…

高能物理 - 唯象学 · 物理学 2017-04-26 Jorge Casalderrey-Solana , Doga Gulhan , Guilherme Milhano , Daniel Pablos , Krishna Rajagopal