中文
相关论文

相关论文: Top++: a program for the calculation of the top-pa…

200 篇论文

We present a program to calculate the total cross section for top-quark pair production in hadronic collisions. The program takes into account recent theoretical developments such as approximate next-to-next-to-leading order perturbative…

高能物理 - 唯象学 · 物理学 2011-02-01 M. Aliev , H. Lacker , U. Langenfeld , S. Moch , P. Uwer , M. Wiedermann

We compute the next-to-next-to-leading order QCD correction to the total inclusive top pair production cross-section in the reaction qg \to t\bar t + X. We find moderate O(1%) correction to central values at both Tevatron and LHC. The scale…

高能物理 - 唯象学 · 物理学 2015-06-11 Michal Czakon , Alexander Mitov

We report on a new calculation of the next-to-next-to-leading order (NNLO) QCD radiative corrections to the inclusive production of top-quark pairs at hadron colliders. The calculation is performed by using the $q_T$ subtraction formalism…

高能物理 - 唯象学 · 物理学 2019-04-03 Stefano Catani , Simone Devoto , Massimiliano Grazzini , Stefan Kallweit , Javier Mazzitelli , Hayk Sargsyan

Top quark pair production is one of the cornerstones of the physics program at hadron colliders. In this contribution, we further explore the phenomenological implications of the recent NNLO calculation of the total inclusive cross-section.…

高能物理 - 唯象学 · 物理学 2013-05-17 Michal Czakon , Paul Fiedler , Alexander Mitov , Juan Rojo

We make use of recent results in effective theory and higher-order perturbative calculations to improve the theoretical predictions of the top-quark pair production cross section at hadron colliders. In particular, we supplement the…

高能物理 - 唯象学 · 物理学 2015-05-28 Valentin Ahrens , Andrea Ferroglia , Matthias Neubert , Ben D. Pecjak , Li Lin Yang

The study of the properties of the top quark is one of the main goals of the Large Hadron Collider (LHC) physics program. The experimental precision expected at the LHC requires the calculation of several top-quark related observables…

高能物理 - 唯象学 · 物理学 2014-11-20 R. Bonciani , A. Ferroglia

We discuss various aspects of inclusive top-quark pair production based on TOPIXS, a new, flexible program that computes the production cross section at the Tevatron and LHC at next-to-next-to-leading logarithmic accuracy in soft and…

高能物理 - 唯象学 · 物理学 2012-08-09 M. Beneke , P. Falgari , S. Klein , J. Piclum , C. Schwinn , M. Ubiali , F. Yan

We compute the next-to-next-to-leading order (NNLO) QCD correction to the total cross-section for the reaction gg \to t\bar t + X. Together with the partonic channels we computed previously, the result derived in this letter completes the…

高能物理 - 唯象学 · 物理学 2013-08-06 Michal Czakon , Paul Fiedler , Alexander Mitov

We compute the production cross section of a top-antitop pair in association with a jet at hadron colliders at next-to-leading order accuracy matched with parton shower algorithms to make predictions at the hadron level. The parton shower…

高能物理 - 唯象学 · 物理学 2015-03-17 Adam Kardos , Costas Papadopoulos , Zoltan Trocsanyi

We present updated predictions for single top-quark production in hadronic collisions. The analysis is based on next-to-leading order QCD calculations. The input parameters are fixed to recent measurements. We compare different PDF sets and…

高能物理 - 唯象学 · 物理学 2015-05-20 P. Kant , O. M. Kind , T. Kintscher , T. Lohse , T. Martini , S. Mölbitz , P. Rieck , P. Uwer

We summarize calculations of the cross section for top quark production at hadron colliders within the context of perturbative quantum chromodynamics, including resummation of the effects of initial-state soft gluon radiation to all orders…

高能物理 - 唯象学 · 物理学 2007-05-23 Edmond L. Berger , Harry Contopanagos

We report on recent calculations of the differential cross section for top-quark pair production at hadron colliders. The results are differential with respect to the top-pair invariant mass and to the partonic scattering angle. In these…

高能物理 - 唯象学 · 物理学 2010-12-13 V. Ahrens , A. Ferroglia , M. Neubert , B. D. Pecjak , L. L. Yang

We describe a general method of calculating the fully differential cross section for the production of jets at next-to-leading order in a hadron collider. This method is based on a `crossing' of next-to-leading order calculations with all…

高能物理 - 唯象学 · 物理学 2008-11-26 Walter T. Giele , E. W. Nigel Glover , David A. Kosower

The results of phenomenological studies of top-quark pair production in proton-proton collisions are presented. Differential cross sections are calculated in perturbative QCD at approximate next-to-next-to-leading order ${\cal…

高能物理 - 唯象学 · 物理学 2015-06-19 Marco Guzzi , Katerina Lipka , Sven-Olaf Moch

We discuss top-quark pair production at hadron colliders and review available calculations of differential top-pair production cross section in perturbative QCD at approximate next-to-next-to-leading order (NNLO) within the threshold…

高能物理 - 唯象学 · 物理学 2013-08-08 Marco Guzzi , Katerina Lipka , Sven-Olaf Moch

A program for the calculation of the total Higgs production cross section via gluon fusion at hadron colliders including next--to--leading order QCD corrections is presented. It is suitable especially for Standard Model Higgs bosons and the…

高能物理 - 唯象学 · 物理学 2007-05-23 M. Spira

\noindent Model building in $\mathsf{SO(10)}$, which is the leading grand unification framework, often involves large Higgs representations and their couplings. Explicit calculations of such couplings is a multi-step process that involves…

高能物理 - 唯象学 · 物理学 2021-10-06 Azadan Bhagwagar , Raza M. Syed

We derive high-order threshold corrections for top quark production in hadronic collisions from resummation calculations. We present analytical expressions for the cross section through next-to-next-to-next-to-next-to-leading order (N^4LO)…

高能物理 - 唯象学 · 物理学 2009-10-31 Nikolaos Kidonakis

We construct an approximate expression for the total cross section for the production of a heavy quark-antiquark pair in hadronic collisions at next-to-next-to-next-to-leading order (N$^3$LO) in $\alpha_s$. We use a technique which exploits…

高能物理 - 唯象学 · 物理学 2015-09-09 Claudio Muselli , Marco Bonvini , Stefano Forte , Simone Marzani , Giovanni Ridolfi

We use a fixed-order expansion of resummed soft-gluon corrections to determine an approximate NNLO formula for the partonic cross section of single-top production in the $s$-channel. This formula is implemented in the program Hathor for the…

高能物理 - 唯象学 · 物理学 2016-08-01 Sergey Alekhin , Sven-Olaf Moch , Stephan Thier
‹ 上一页 1 2 3 10 下一页 ›