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19912026
Showing 2018 · hep-phShow all

17 papers · 2 filters

hep-ph2018★ 81 cited

Associated production of a top quark pair with a heavy electroweak gauge boson at NLO+NNLL accuracy

Anna Kulesza, Leszek Motyka, Daniel Schwartländer +2

We perform threshold resummation of soft gluon corrections to the total cross sections and the invariant mass distributions for production of a top-antitop quark pair associated wi…

hep-ph2018★ 127 cited

Analytic Form of the Planar Two-Loop Five-Gluon Scattering Amplitudes in QCD

S. Abreu, J. Dormans, F. Febres Cordero +2

We present the analytic form of the two-loop five-gluon scattering amplitudes in QCD for a complete set of independent helicity configurations of external gluons. These include the…

hep-ph2018★ 5 cited

Top Quark Anomalous Couplings at the High-Luminosity Phase of the LHC

Frédéric Déliot, Miguel C. N. Fiolhais, António Onofre

The combination of the latest and most precise measurements of several top quark properties is presented in this paper in order to establish allowed regions on anomalous contributi…

hep-ph2018★ 226 cited

Revisiting the mechanical properties of the nucleon

Cédric Lorcé, Hervé Moutarde, Arkadiusz P. Trawiński

We discuss in detail the distributions of energy, radial pressure and tangential pressure inside the nucleon. In particular, this discussion is carried on in both the instant form…

hep-ph2018★ 20 cited

Initial-state energy loss in cold QCD matter and the Drell-Yan process

François Arleo, Charles-Joseph Naïm, Stephane Platchkov

The effects of parton energy loss in nuclear matter on the Drell-Yan process in pA and A collisions at fixed-target energies are investigated. Calculations are based on the Baie…

hep-ph2018★ 33 cited

Computing -subjettiness for boosted jets

Davide Napoletano, Gregory Soyez

Jet substructure tools have proven useful in a number of high-energy particle-physics studies. A particular case is the discrimination, or tagging, between a boosted jet originated…

hep-ph2018★ 53 cited

Precision Photon Spectra for Wino Annihilation

Matthew Baumgart, Timothy Cohen, Emmanuel Moulin +6

We provide precise predictions for the hard photon spectrum resulting from neutral SU triplet (wino) dark matter annihilation. Our calculation is performed utilizing an effe…

hep-ph2018

Forward rapidity isolated photon production in proton-nucleus collisions

B. Ducloué, T. Lappi, H. Mäntysaari

We calculate isolated photon production at forward rapidities in proton-nucleus collisions in the Color Glass Condensate framework. Our calculation uses dipole cross sections solve…

hep-ph2018★ 7 cited

Top tagging : an analytical perspective

Mrinal Dasgupta, Marco Guzzi, Jacob Rawling +1

In this paper we study aspects of top tagging from first principles of QCD. We find that the method known as the CMS top tagger becomes collinear unsafe at high and propose v…

hep-ph2018★ 130 cited

The Lund Jet Plane

Frederic A. Dreyer, Gavin P. Salam, Gregory Soyez

Lund diagrams, a theoretical representation of the phase space within jets, have long been used in discussing parton showers and resummations. We point out that they can be created…

hep-ph2018★ 69 cited

ZZ and Zgamma still haven't found what they are looking for

Brando Bellazzini, Francesco Riva

Neutral diboson processes are precise probes of the Standard Model (SM) of particle physics, which entail high sensitivity to new physics effects. We identify in terms of dimension…

hep-ph2018★ 61 cited

Recursive Soft Drop

Frédéric A. Dreyer, Lina Necib, Gregory Soyez +1

We introduce a new jet substructure technique called Recursive Soft Drop, which generalizes the Soft Drop algorithm to have multiple grooming layers. Like the original Soft Drop me…

hep-ph2018★ 53 cited

Direct Solution of Integration-by-Parts Systems

David A. Kosower

Systems of integration-by-parts identities play an important role in simplifying the higher-loop Feynman integrals that arise in quantum field theory. Solving these systems is equi…

hep-ph2018★ 95 cited

The approach to equilibrium of a quarkonium in a quark-gluon plasma

Jean-Paul Blaizot, Miguel Angel Escobedo

We derive equations of motion for the reduced density matrix of a heavy quarkonium in contact with a quark-gluon plasma in thermal equilibrium. These equations allow in particular…

hep-ph2018★ 17 cited

boson production in bottom-quark fusion: a study of -mass effects beyond leading order

Stefano Forte, Davide Napoletano, Maria Ubiali

We compute the total cross-section for boson production in bottom-quark fusion, applying to this case the method we previously used for Higgs production in bottom fusion. Namel…

hep-ph2018★ 28 cited

Pileup mitigation at the LHC: a theorist's view

Gregory Soyez

To maximise the potential for new measurements and discoveries at the LHC, the machine delivers as high as possible collision rates. As a consequence, multiple proton-proton collis…

hep-ph2018★ 25 cited

Vector boson scattering: Recent experimental and theory developments

C. F. Anders, A. Ballestrero, J. Balz +111

This document summarises the talks and discussions happened during the VBSCan Split17 workshop, the first general meeting of the VBSCan COST Action network. This collaboration is a…