中文
相关论文

相关论文: Inclusive Heavy Flavor Hadroproduction in NLO QCD:…

200 篇论文

Existing calculations of heavy quark hadroproduction in perturbative QCD are either based on the approximate conventional zero-mass perturbative QCD theory or on next-to-leading order (NLO) fixed-flavor-number (FFN) scheme which is…

高能物理 - 唯象学 · 物理学 2011-01-25 Fredrick I. Olness , Randall J. Scalise , Wu-Ki Tung

We present the complete threshold enhanced predictions in QCD for the total cross section of gluino pair production at hadron colliders at next-to-next-to-leading order. Thanks to the computation of the required one-loop hard matching…

高能物理 - 唯象学 · 物理学 2012-11-26 Ulrich Langenfeld , Sven-Olaf Moch , Torsten Pfoh

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 calculate, for the first time, the NNLO QCD corrections to identified heavy hadron production at hadron colliders. The calculation is based on a flexible numeric framework which allows the calculation of any distribution of a single…

高能物理 - 唯象学 · 物理学 2021-11-17 Michal Czakon , Terry Generet , Alexander Mitov , Rene Poncelet

Substantial advances in our understanding of several aspects of QCD have been achieved in the recent past using heavy quarks as a tool. However, many open questions still remain. These successes and puzzles are highlighted by the latest…

高能物理 - 实验 · 物理学 2007-05-23 Harold G. Evans

I discuss heavy flavor production at hadronic facilities. I present total cross sections and differential distributions for top quark, bottom quark, and charm quark production at the Tevatron and LHC colliders, and at fixed-target…

高能物理 - 唯象学 · 物理学 2009-10-08 Nikolaos Kidonakis

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 calculate the ${\cal O}(\alpha_s^3)$ short-distance, QCD collinear-factorized coefficient functions for all partonic channels that include the production of a heavy quark pair at short distances. This provides the first power correction…

高能物理 - 唯象学 · 物理学 2015-03-09 Zhong-Bo Kang , Yan-Qing Ma , Jian-Wei Qiu , George Sterman

We review theoretical and phenomenological aspects of heavy flavour production as discussed in the heavy flavour working group of the DIS 2012. Recent theoretical progress includes approximate NNLO calculations for heavy quark structure…

高能物理 - 唯象学 · 物理学 2012-08-17 Jolanta Brodzicka , Massimo Corradi , Ingo Schienbein , Reinhard Schwienhorst

We provide a first calculation of the complete next-to-leading order QCD corrections for heavy flavor contributions to the inclusive structure function $g_1$ in longitudinally polarized deep-inelastic scattering. The results are derived…

高能物理 - 唯象学 · 物理学 2021-05-31 Felix Hekhorn , Marco Stratmann

We present a complete description of top quark pair production in association with a hard photon in the dilepton channel. Our calculation is accurate to NLO in QCD. It is based on matrix elements for $e^+\nu_e \mu^-\bar{\nu}_\mu b…

高能物理 - 唯象学 · 物理学 2018-10-29 G. Bevilacqua , H. B. Hartanto , M. Kraus , T. Weber , M. Worek

This is a second paper in our ongoing calculation of the next-to-next-to-leading order (NNLO) QCD correction to the total inclusive top-pair production cross-section at hadron colliders. In this paper we calculate the reaction $q\bar q \to…

高能物理 - 唯象学 · 物理学 2015-06-05 Michal Czakon , Alexander Mitov

Hadrons carrying open heavy flavor, i.e. single charm or bottom quarks, are among the key diagnostic tools available today for the hot and dense state of strongly interacting matter which is produced in collisions of heavy atomic nuclei at…

核实验 · 物理学 2015-05-18 R. Averbeck

We report on the first fully differential calculation for $W^\pm Z$ production in hadron collisions up to next-to-next-to-leading order (NNLO) in QCD perturbation theory. Leptonic decays of the $W$ and $Z$ bosons are consistently taken into…

高能物理 - 唯象学 · 物理学 2017-09-13 Massimiliano Grazzini , Stefan Kallweit , Dirk Rathlev , Marius Wiesemann

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

高能物理 - 唯象学 · 物理学 2019-09-04 Stefano Catani , Simone Devoto , Massimiliano Grazzini , Stefan Kallweit , Javier Mazzitelli

We discuss heavy-flavor production at hadron colliders in recent global QCD analyses to determine parton distribution functions (PDFs) in the proton. We discuss heavy-flavor treatments in precision theory predictions at the LHC. In…

高能物理 - 唯象学 · 物理学 2022-11-30 Marco Guzzi , Alim Ablat , Sayipjamal Dulat , Tie-Jiun Hou , Pavel M. Nadolsky , Ibrahim Sitiwaldi , Keping Xie , C. -P. Yuan

Recent theoretical results on heavy flavor production and decay in the framework of perturbative QCD are reviewed. This includes calculations for top production at hadron colliders, inclusive charmonium production and the comparison between…

高能物理 - 唯象学 · 物理学 2007-05-23 J. H. Kuehn

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

This talk serves as an introduction to the Heavy-Flavor session of the XXXIII International Symposium on Multiparticle Dynamics. A major focus of this session is on the production of heavy quarks. The talks which follow review the latest…

高能物理 - 实验 · 物理学 2008-11-26 Jeffrey A. Appel

The impact of the finite top-quark mass on the inclusive Higgs production cross section at higher perturbative orders has been an open question for almost three decades. In this paper, we report on the computation of this effect at NNLO…

高能物理 - 唯象学 · 物理学 2023-09-29 M. Czakon , R. V. Harlander , J. Klappert , M. Niggetiedt
‹ 上一页 1 2 3 10 下一页 ›