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Related papers: The NNLO quark beam function for jet-veto resummat…

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We discuss the CoLoRFulNNLO method for computing higher order radiative corrections to jet cross sections in perturbative QCD. We apply our method to the calculation of event shapes and jet rates in three-jet production in electron-positron…

High Energy Physics - Phenomenology · Physics 2017-08-02 Gábor Somogyi , Adam Kardos , Zoltán Szőr , Zoltán Trócsányi

We investigate the resummation effects for the SM Higgs and vector boson associated production at the LHC with a jet veto in soft-collinear effective theory using "collinear anomalous" formalism. We calculate the jet vetoed invariant mass…

High Energy Physics - Phenomenology · Physics 2014-03-04 Ding Yu Shao , Chong Sheng Li , Hai Tao Li

We compute the two-loop heavy quark jet-function in the heavy quark limit. This is one of the key ingredients in next-to-next-to-leading order (NNLO) and next-to-next-to-leading-log order (NNLL) computations of the invariant mass…

High Energy Physics - Phenomenology · Physics 2008-11-26 Ambar Jain , Ignazio Scimemi , Iain W. Stewart

We compute the inclusive jet function for boosted heavy quarks to $\mathcal{O}(\alpha_s^3)$. The jet function is defined and calculated in the framework of boosted Heavy-Quark Effective Theory (bHQET). It describes the effect of radiation…

High Energy Physics - Phenomenology · Physics 2025-04-08 Alberto M. Clavero , Robin Brüser , Vicent Mateu , Maximilian Stahlhofen

The popular class of angularity event shapes provides a wealth of information on the hadronic final-state distribution in collider events. While initially proposed for $e^+ e^-$ collisions, angularities have more recently attracted…

High Energy Physics - Phenomenology · Physics 2024-09-23 Guido Bell , Kevin Brune , Goutam Das , Marcel Wald

Jet vetoes are widely used in experimental analyses at the LHC to distinguish different hard-interaction processes. Experimental jet selections require a cut on the (pseudo)rapidity of reconstructed jets, $|\eta_{\rm jet}| \leq \eta_{\rm…

High Energy Physics - Phenomenology · Physics 2019-05-22 Johannes K. L. Michel , Piotr Pietrulewicz , Frank J. Tackmann

Using the technology of the CAESAR approach to resummation, we examine the jet-veto efficiency in Higgs-boson and Drell-Yan production at hadron colliders and show that at next-to-leading logarithmic (NLL) accuracy the resummation reduces…

High Energy Physics - Phenomenology · Physics 2015-06-04 Andrea Banfi , Gavin P. Salam , Giulia Zanderighi

Jets constructed via clustering algorithms (e.g., anti-$k_T$, soft-drop) have been proposed for many precision measurements, such as the strong coupling $\alpha_s$ and the nucleon intrinsic dynamics. However, the theoretical accuracy is…

High Energy Physics - Phenomenology · Physics 2022-11-15 Hao-yu Liu , Xiaohui Liu , Sven-Olaf Moch

We study WZ production with anomalous couplings at $\bar{n}$NLO QCD using the LoopSim method in combination with the Monte Carlo program VBFNLO. Higher order corrections to WZ production are dominated by additional hard jet radiation. Those…

High Energy Physics - Phenomenology · Physics 2016-12-13 Francisco Campanario , Robin Roth , Sebastian Sapeta , Dieter Zeppenfeld

This talk discusses recent results for next-to-next-to-leading order (NNLO) QCD corrections to jet cross sections and transverse momentum distributions. The results are obtained in the NNLOJET code framework, which provides an…

We calculate the next-to-leading corrections to the jet vertex which is relevant for the Mueller-Navelet-jets production in p-pbar collisions and for the forward jet cross section in e-p collisions. In this first part we present the results…

High Energy Physics - Phenomenology · Physics 2011-09-13 J. Bartels , D. Colferai , G. P. Vacca

The NJL-jet model provides a sound framework for calculating the fragmentation func- tions in an effective chiral quark theory, where the momentum and isospin sum rules are satisfied without the introduction of ad hoc parameters [1].…

Nuclear Theory · Physics 2011-04-06 Hrayr H. Matevosyan , Anthony W. Thomas , Wolfgang Bentz

We resum the invariant mass distribution of jets initiated by massive quarks in next-to-leading logarithmic approximation and beyond in heuristic way. We find that the inclusion of mass terms, in the N-moment space, results in the universal…

High Energy Physics - Phenomenology · Physics 2008-11-26 Ugo Aglietti , Leonardo Di Giustino , Giancarlo Ferrera , Luca Trentadue

We study the production of an electroweak boson in association with jets, in processes where the jet with the highest transverse momentum is identified as quark-initiated. The quark/gluon tagging procedure is realised by a cut on a jet…

High Energy Physics - Phenomenology · Physics 2021-09-28 Simone Caletti , Oleh Fedkevych , Simone Marzani , Daniel Reichelt

We recalculate, completely within the original BFKL approach and at the next-to-leading order, the jet vertex relevant for the production of Mueller-Navelet jets in proton collisions and of forward jets in DIS. We consider both processes…

High Energy Physics - Phenomenology · Physics 2015-06-03 F. Caporale , D. Yu. Ivanov , B. Murdaca , A. Papa , A. Perri

We present the CoLoRFulNNLO method to compute higher order radiative corrections to jet cross sections in perturbative QCD. We apply our method to the computation of event shape observables in electron-positron collisions at NNLO accuracy…

High Energy Physics - Phenomenology · Physics 2016-10-19 Vittorio Del Duca , Claude Duhr , Adam Kardos , Gábor Somogyi , Zoltán Szőr , Zoltán Trócsányi , Zoltán Tulipánt

We derive first next-to-next-to-leading logarithmic resummations for jet-veto efficiencies in Higgs and Z-boson production at hadron colliders. Matching with next-to-next-to-leading order results allows us to provide a range of…

High Energy Physics - Phenomenology · Physics 2015-06-05 Andrea Banfi , Pier Francesco Monni , Gavin P. Salam , Giulia Zanderighi

We construct a novel event generator for the process $p \> p \to \ell^- \> \bar{\nu}_\ell \> \ell'^+ \> \nu_{\ell'}$, which matches fixed-order predictions at next-to-next-to-leading order in the strong coupling to a parton shower program.…

High Energy Physics - Phenomenology · Physics 2023-08-23 Alessandro Gavardi , Matthew A. Lim , Simone Alioli , Frank Tackmann

We calculate the massless quark jet function to three-loop order. The quark jet function is a universal ingredient in SCET factorization for many collider and decay processes with quark initiated final state jets. Our three-loop result…

High Energy Physics - Phenomenology · Physics 2018-09-20 Robin Brüser , Ze Long Liu , Maximilian Stahlhofen

Recent literature on deep neural networks for tagging of highly energetic jets resulting from top quark decays has focused on image based techniques or multivariate approaches using high-level jet substructure variables. Here, a sequential…

High Energy Physics - Experiment · Physics 2017-08-10 Jannicke Pearkes , Wojciech Fedorko , Alison Lister , Colin Gay