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相关论文: Comment on Resummation of Mass Distribution for Je…

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We construct jet observables for energetic top quarks that can be used to determine a short distance top quark mass from reconstruction in e+ e- collisions with accuracy better than Lambda_{QCD}. Using a sequence of effective field theories…

高能物理 - 唯象学 · 物理学 2008-11-26 Sean Fleming , Andre H. Hoang , Sonny Mantry , Iain W. Stewart

We study the production of photons accompanied by jets in large-Q2 deep inelastic scattering. Numerical results for the cross section differential with respect to the fraction of momentum z_gamma carried by a photon inside a jet at large…

高能物理 - 唯象学 · 物理学 2011-09-13 A. Gehrmann-De Ridder , G. Kramer , H. Spiesberger

We study the effect of the resummation of logarithms for t\bar{t} production near threshold and inclusive electromagnetic decays of heavy quarkonium. This analysis is complete at next-to-next-to-leading order and includes the full…

高能物理 - 唯象学 · 物理学 2009-11-11 Antonio Pineda , Adrian Signer

We present a comprehensive study of energy correlation functions and jet angularities for heavy-flavour QCD jets. In particular, we discuss the possibility of using these observables to expose the dead cone effect, i.e. the suppression of…

高能物理 - 唯象学 · 物理学 2025-02-14 Prasanna K. Dhani , Oleh Fedkevych , Andrea Ghira , Simone Marzani , Gregory Soyez

The paper generalizes the results on soft - hard decomposition of the characteristics of QCD jets obtained in [1] by taking into account the effects of fermions and running coupling constant.

高能物理 - 唯象学 · 物理学 2007-05-23 I. M. Dremin , A. V. Leonidov

We present the first calculations of the heavy flavor diffusion coefficient using lattice QCD with light dynamical quarks. For temperatures $195\,\mathrm{MeV}<T<352\,\mathrm{MeV}$, the heavy quark spatial diffusion coefficient is found to…

We briefly describe a new general algorithm for carrying out QCD calculations to next-to-leading order in perturbation theory. The algorithm can be used for computing arbitrary jet cross sections in arbitrary processes and can be…

高能物理 - 唯象学 · 物理学 2007-05-23 Stefano Catani , Michael H. Seymour

We perform a quantitative analysis of $D\bar{D}$ mixing in Heavy Quark Effective Field Theory (HqEFT) including leading order QCD corrections. We find an enhancement of the short-distance contribution by a factor of two or three.

高能物理 - 唯象学 · 物理学 2010-11-01 Thorsten Ohl , Giulia Ricciardi , Elizabeth H. Simmons

Jet shapes are weighted sums over the four-momenta of the constituents of a jet and reveal details of its internal structure, potentially allowing discrimination of its partonic origin. In this work we make predictions for quark and gluon…

高能物理 - 唯象学 · 物理学 2010-12-06 Stephen D. Ellis , Andrew Hornig , Christopher Lee , Christopher K. Vermilion , Jonathan R. Walsh

Two AdS/CFT based energy loss models are used to compute the suppression and azimuthal correlations of heavy quarks in heavy ion collisions. The model with a velocity independent diffusion coefficient is in good agreement with B and D meson…

高能物理 - 唯象学 · 物理学 2018-02-08 Robert Hambrock , William Alexander Horowitz

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…

高能物理 - 实验 · 物理学 2017-08-10 Jannicke Pearkes , Wojciech Fedorko , Alison Lister , Colin Gay

We present a fully non-perturbative computation of the mass of the b-quark in the quenched approximation. Our strategy starts from the matching of HQET to QCD in a finite volume and finally relates the quark mass to the spin averaged mass…

高能物理 - 唯象学 · 物理学 2009-11-11 Michele Della Morte , Nicolas Garron , Mauro Papinutto , Rainer Sommer

We investigate QCD threshold resummation effects beyond the next-to-leading logarithmic (NLL) order for the process H1 H2->h1 h2 X at high invariant mass of the produced hadron pair. We take into account the color structure of the…

高能物理 - 唯象学 · 物理学 2015-06-23 Patriz Hinderer , Felix Ringer , George F. Sterman , Werner Vogelsang

The mass distribution of jets produced in hard processes at the LHC plays an important role in several jet substructure related studies involving both Standard Model and BSM physics, especially in the context of boosted heavy particle…

高能物理 - 唯象学 · 物理学 2012-12-18 Mrinal Dasgupta , Kamel Khelifa-Kerfa , Simone Marzani , Michael Spannowsky

LHC measurements involve cuts on several observables, but resummed calculations are mostly restricted to single variables. We show how the resummation of a class of double-differential measurements can be achieved through an extension of…

高能物理 - 唯象学 · 物理学 2015-06-23 Massimiliano Procura , Wouter J. Waalewijn , Lisa Zeune

We investigate the transverse momentum resummation for top quark pair production at hadron colliders using the soft-collinear effective theory and the heavy-quark effective theory. We derive the factorization formula for $t\bar{t}$…

高能物理 - 唯象学 · 物理学 2013-10-30 Hai Tao Li , Chong Sheng Li , Ding Yu Shao , Li Lin Yang , Hua Xing Zhu

We present the computation of the soft-parton contribution at low transverse momentum for the production of a heavy quark pair in association with a colour singlet at the next-to-next-to-leading order (NNLO) in the QCD coupling. This paper…

高能物理 - 唯象学 · 物理学 2025-09-23 Simone Devoto , Javier Mazzitelli

To describe the transverse momentum spectrum of heavy color-singlet production, the joint resummation of threshold and transverse momentum logarithms is investigated. We obtain factorization theorems for various kinematic regimes valid to…

高能物理 - 唯象学 · 物理学 2016-10-21 Gillian Lustermans , Wouter J. Waalewijn , Lisa Zeune

We develop a framework for a systematic resummation of the transverse momentum distribution of top-quark pairs produced at hadron colliders based on effective field theory. Compared to Drell-Yan and Higgs production, a novel soft function…

高能物理 - 唯象学 · 物理学 2013-03-14 Hua Xing Zhu , Chong Sheng Li , Hai Tao Li , Ding Yu Shao , Li Lin Yang

The heavy jet mass distribution in e+e- collisions is computed to next-to-next-to-next-to leading logarithmic (NNNLL) and next-to-next-to leading fixed order accuracy (NNLO). The singular terms predicted from the resummed distribution are…

高能物理 - 唯象学 · 物理学 2010-09-09 Yang-Ting Chien , Matthew D. Schwartz