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Related papers: Multijet matrix elements and shower evolution in h…

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We present hadron-level predictions from the Monte Carlo generator Cascade and parton level calculations of open b quark, b-flavored hadron and inclusive b-jet production in the framework of the kt-factorization QCD approach for the LHC…

High Energy Physics - Phenomenology · Physics 2013-02-11 H. Jung , M. Kraemer , A. V. Lipatov , N. P. Zotov

We present the complete calculation of $W$-boson production in association with a jet in hadronic collisions through next-to-next-to-leading order in perturbative QCD. To cancel infrared divergences we introduce a new subtraction method…

High Energy Physics - Phenomenology · Physics 2016-08-08 Radja Boughezal , Christfried Focke , Xiaohui Liu , Frank Petriello

In these proceedings we report recent progress on understanding hadron and jet production in electron-nucleus collisions at the future Electron-Ion Collider [1,2]. These processes will play an essential role in the exploration of the…

High Energy Physics - Phenomenology · Physics 2022-03-07 Hai Tao Li , Ze Long Liu , Ivan Vitev

We present an implementation of Higgs boson production via vector-boson fusion in association with three jets at hadron colliders in the POWHEG-BOX, a framework for the matching of NLO-QCD calculations with parton-shower programs. Our work…

High Energy Physics - Phenomenology · Physics 2015-06-19 B. Jager , F. Schissler , D. Zeppenfeld

We consider $W^\pm Z$ production in hadronic collisions and present high-precision predictions in QCD and electroweak (EW) perturbation theory matched to parton showers. To this end, we match next-to-next-to-leading order QCD corrections to…

High Energy Physics - Phenomenology · Physics 2022-11-30 Jonas M. Lindert , Daniele Lombardi , Marius Wiesemann , Giulia Zanderighi , Silvia Zanoli

Studies of highly-boosted top quarks produced inclusively in pp collisions at 14 TeV are discussed. The hadronic decays of boosted top quarks was studied in a data-driven approach by analysing shapes of jet-mass distributions. Using Monte…

High Energy Physics - Phenomenology · Physics 2013-10-02 B. Auerbach , S. V. Chekanov , N. Kidonakis

Multiple partonic interactions are widely used to simulate the hadronic final state in high energy hadronic collisions, and successfully describe many features of the data. It is important to make maximum use of the available physical…

High Energy Physics - Phenomenology · Physics 2009-01-30 Manuel Bähr , Jonathan M. Butterworth , Michael H. Seymour

We present a simple formalism for the evolution of timelike jets in which tree-level matrix element corrections can be systematically incorporated, up to arbitrary parton multiplicities and over all of phase space, in a way that…

High Energy Physics - Phenomenology · Physics 2013-08-06 W. T. Giele , D. A. Kosower , P. Z. Skands

We present next-to-leading order (NLO) QCD predictions to $W^+W^-$ production in association with up to three jets at hadron colliders. We include contributions from couplings of the $W$ bosons to light quarks as well as trilinear vector…

High Energy Physics - Phenomenology · Physics 2017-02-15 F. Febres Cordero , P. Hofmann , H. Ita

The difference between the structures of jets produced in heavy-ion and hadronic collisions can best be exhibited in the correlations between particles within those jets. We study the dihadron correlations in jets in the framework of parton…

Nuclear Theory · Physics 2009-11-10 Rudolph C. Hwa , C. B. Yang

We present theoretical predictions for the hadroproduction of t tbar W+, t tbar W- and t tbar Z at LHC as obtained by matching numerical computations at NLO accuracy in QCD with Shower Monte Carlo programs. The calculation is performed by…

High Energy Physics - Phenomenology · Physics 2012-12-03 M. V. Garzelli , A. Kardos , C. G. Papadopoulos , Z. Trócsányi

We apply gradient boosting machine learning techniques to the problem of hadronic jet substructure recognition using classical subjettiness variables available within a common parameterized detector simulation package DELPHES. Per-jet…

High Energy Physics - Experiment · Physics 2024-01-25 Petr Baroň , Jiří Kvita , Radek Přívara , Jan Tomeček , Rostislav Vodák

In this talk I present the total cross sections, accurate at the NLO in QCD, for rare Standard-Model hadroproduction processes involving multi-Higgs-boson, multi-electroweak-boson and multi-top-quark final states. The comparison between…

High Energy Physics - Phenomenology · Physics 2014-07-08 Paolo Torrielli

The hadronization procedure of the QGSJET-III Monte Carlo (MC) generator of high energy hadronic interactions is discussed. Selected results of the model, regarding production spectra of secondary particles, are presented in comparison to…

High Energy Physics - Phenomenology · Physics 2024-04-30 Sergey Ostapchenko

We present additions to the MARTINI event generator for examining heavy quarks and quarkonia in heavy-ion collisions. All stages of a heavy-ion collision affect the observables associated with heavy quarks: the initial phase space of the…

Nuclear Theory · Physics 2013-05-30 Clint Young , Bjoern Schenke , Sangyong Jeon , Charles Gale

We study the hadroproduction of a $Wb$ pair in association with a light jet, focusing on the dominant $t$-channel contribution and including exactly at the matrix-element level all non-resonant and off-shell effects induced by the finite…

High Energy Physics - Phenomenology · Physics 2016-06-29 Rikkert Frederix , Stefano Frixione , Andrew S. Papanastasiou , Stefan Prestel , Paolo Torrielli

We discuss implications of the evolution of transverse momentum dependent (TMD) parton distributions on the structure of multi-jet states at high energies. In particular we analyze the theoretical systematics associated with multi-jet…

High Energy Physics - Phenomenology · Physics 2021-09-20 A. Bermudez Martinez , F. Hautmann , M. L. Mangano

The second-order QCD matrix elements give a very good agreement with experimental data on the angular distributions of the four-jet events in e+e- collisions at the Z0 resonance energy. Unfortunately the description of the sub-jet structure…

High Energy Physics - Phenomenology · Physics 2007-05-23 Johan André

We present the first combination of NLO QCD matrix elements for di-Higgs production, retaining the full top quark mass dependence, with a parton shower. Results are provided within both the POWHEG-BOX and MadGraph5_aMC@NLO Monte Carlo…

High Energy Physics - Phenomenology · Physics 2017-12-05 G. Heinrich , S. P. Jones , M. Kerner , G. Luisoni , E. Vryonidou

The time-evolution of jets in hadronic e+e- events at LEP is investigated in both position- and momentum-space, with emphasis on effects due to color flow and particle correlations. We address dynamical aspects of the four…

High Energy Physics - Phenomenology · Physics 2009-09-11 John Ellis , Klaus Geiger