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Within NRQCD factorization framework, in this work we compute, at the lowest order in velocity expansion, the next-to-leading-order (NLO) perturbative corrections to the short-distance coefficients associated with heavy quark fragmentation…

高能物理 - 唯象学 · 物理学 2021-07-28 Feng Feng , Yu Jia , Wen-Long Sang

We present a calculation of the full next-to-leading order QCD corrections to the scattering process pp \to t tbar Z. This channel will be used to measure the t tbar Z electroweak couplings at the Large Hadron Collider. These couplings…

高能物理 - 唯象学 · 物理学 2008-11-26 Achilleas Lazopoulos , Thomas McElmurry , Kirill Melnikov , Frank Petriello

We compute the next-to-next-to-leading order (NNLO) QCD corrections to the hadronic decay rates of the pseudoscalar quarkonia, at the lowest order in velocity expansion. The validity of NRQCD factorization for inclusive quarkonium decay…

高能物理 - 唯象学 · 物理学 2017-12-27 Feng Feng , Yu Jia , Wen-Long Sang

This paper describes the calculation of the next-to-leading order (NLO) QCD corrections to massive color-octet vector boson pair production at hadron colliders. As a concrete framework, a two-site coloron model with an internal parity is…

高能物理 - 唯象学 · 物理学 2018-02-27 Ayres Freitas , Daniel Wiegand

We present the calculation of next-to-next-to-leading-order (NNLO) QCD corrections to hadron multiplicities in light-quark jets at lepton colliders, employing the ``projection-to-Born" (P2B) method implemented in the FMNLO program. Taking…

高能物理 - 唯象学 · 物理学 2025-10-29 Bin Zhou , Jun Gao

We present the complete next-to-leading order (NLO) QCD corrections to $tZ$ associated production induced by the model-independent $tqg$ and $tqZ$ flavor-changing neutral-current couplings at hadron colliders, respectively. Our results show…

高能物理 - 唯象学 · 物理学 2015-03-19 Bo Hua Li , Yue Zhang , Chong Sheng Li , Jun Gao , Hua Xing Zhu

The next-to-next-to-leading order (NNLO) non-singlet QCD analysis of the experimental data of the CCFR collaboration for the $xF_3$ and $F_2$ structure functions of the deep-inelastic scattering of neutrinos and antineutrinos on the nucleon…

高能物理 - 唯象学 · 物理学 2011-04-20 A. L. Kataev , A. V. Kotikov , G. Parente , A. V. Sidorov

We present results for the $Z$-boson and $W$-boson transverse momentum ($p_T$) distributions for large $p_T$ at LHC and Tevatron energies. We calculate complete next-to-leading-order (NLO) QCD corrections as well as soft-gluon corrections…

高能物理 - 唯象学 · 物理学 2015-06-19 Nikolaos Kidonakis , Richard J. Gonsalves

We compute the next-to-next-to-leading order (NNLO) QCD corrections to the decay $t(\uparrow) \to X_b +W^+$ of a polarized top quark. The spin-momentum correlation in this quasi two-body decay is described by the polar angle distribution…

高能物理 - 唯象学 · 物理学 2018-05-16 A. Czarnecki , S. Groote , J. G. Körner , J. H. Piclum

We present theoretical predictions for five jet production in proton-proton collisions at next-to-leading order accuracy in QCD. Inclusive as well as differential observables are studied for collision energies of 7 and 8 TeV. In general the…

高能物理 - 唯象学 · 物理学 2014-02-26 Simon Badger , Benedikt Biedermann , Peter Uwer , Valery Yundin

Within the framework of a high-twist approach, we calculate the next-to-leading order (NLO) perturbative QCD corrections to the transverse momentum broadening in semi-inclusive hadron production in deeply inelastic $e+A$ collisions, as well…

高能物理 - 唯象学 · 物理学 2014-03-19 Zhong-Bo Kang , Enke Wang , Xin-Nian Wang , Hongxi Xing

We present the theoretical predictions including the complete next-to-leading order (NLO) QCD corrections to the top-quark pair production in association with a photon at the LHC with center-of-mass system energy of $7 {\rm TeV}$. The…

高能物理 - 唯象学 · 物理学 2015-05-30 Duan Peng-Fei , Zhang Ren-You , Ma Wen-Gan , Han Liang , Guo Lei , Wang Shao-Ming

We discuss the motivation for making predictions for jet cross sections at next-to-next-to-leading order. We describe the theoretical ingredients needed for such a calculation and briefly review the progress in the field.

高能物理 - 唯象学 · 物理学 2007-05-23 E. W. N. Glover

Radiative corrections due to initial state radiation in electron-positron annihilation are calculated within the QED structure function approach. Results are shown in the next-to-leading logarithmic approximation up to $O(\alpha^4 L^3)$…

高能物理 - 唯象学 · 物理学 2024-12-12 A. B. Arbuzov , U. E. Voznaya

We compute production rates for two, three, four and five jets in electron-positron annihilation at the third order in the QCD coupling constant. At this order, three-jet production is described to next-to-next-to-leading order (NNLO) in…

高能物理 - 唯象学 · 物理学 2008-11-26 A. Gehrmann-De Ridder , T. Gehrmann , E. W. N. Glover , G. Heinrich

We calculate, for the first time, the next-to-next-to leading order (NNLO) QCD corrections to spin correlations in top quark pair production at the LHC. The NNLO corrections play an important role in the description of the corresponding…

高能物理 - 唯象学 · 物理学 2019-08-28 Arnd Behring , Michal Czakon , Alexander Mitov , Andrew S. Papanastasiou , Rene Poncelet

We present a subtraction scheme for computing jet cross sections in electron-positron annihilation at next-to-next-to-leading order accuracy in perturbative QCD. In this second part we deal with the regularization of the real-virtual…

高能物理 - 唯象学 · 物理学 2010-10-27 Gabor Somogyi , Zoltan Trocsanyi

We compute the next-to-next-to-leading order (NNLO) soft and virtual QCD corrections for the partonic cross section of colourless-final state processes in hadronic collisions. The results are valid to all orders in the dimensional…

高能物理 - 唯象学 · 物理学 2013-02-28 Daniel de Florian , Javier Mazzitelli

We compute the next-to-leading-order (NLO) QCD corrections to the Higgs pT distribution in Higgs production in association with a jet via gluon fusion at the LHC, with exact dependence on the mass of the quark circulating in the heavy-quark…

高能物理 - 唯象学 · 物理学 2023-07-19 R. Bonciani , V. Del Duca , H. Frellesvig , M. Hidding , V. Hirschi , F. Moriello , G. Salvatori , G. Somogyi , F. Tramontano

We compute the next-to-leading order perturbative QCD corrections to the correlators of nucleon interpolating currents in relativistic nuclear matter. The main new result is the calculation of the O(alpha_s) perturbative corrections to the…

高能物理 - 唯象学 · 物理学 2008-11-26 S. Groote , J. G. Körner , A. A. Pivovarov