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We compute the total top-quark pair production cross section at the Tevatron and LHC based on approximate NNLO results, and on the summation of threshold logarithms and Coulomb enhancements to all orders with next-to-next-to-leading…

高能物理 - 唯象学 · 物理学 2011-11-14 M. Beneke , P. Falgari , S. Klein , C. Schwinn

We present updated predictions on the inclusive total cross sections, including the complete next-to-leading order QCD corrections, for the graviton and photon associated production process in the large extra dimensions model at the LHC…

高能物理 - 唯象学 · 物理学 2012-12-13 Jian Wang , Chong Sheng Li

We compute the total cross section for $t\bar{t}t\bar{t}$ production at next-to-leading logarithmic (NLL$^{\prime}$) accuracy. This is the first time resummation is performed for a hadron-collider process with four colored particles in the…

高能物理 - 唯象学 · 物理学 2025-06-11 Melissa van Beekveld , Anna Kulesza , Laura Moreno Valero

We investigate the resummation effects in the Standard Model Higgs boson pair production through gluon-gluon fusion at the LHC with soft-collinear effective theory. We calculate the total cross section and the invariant mass distribution at…

高能物理 - 唯象学 · 物理学 2013-08-01 Ding Yu Shao , Chong Sheng Li , Hai Tao Li , Jian Wang

Results are presented from a search for the electroweak production of supersymmetric particles in pp collisions in final states with two tau leptons. The data sample corresponds to an integrated luminosity between 18.1 inverse femtobarns…

高能物理 - 实验 · 物理学 2017-04-11 CMS Collaboration

We study the resummation of large logarithmic perturbative corrections to the partonic cross sections relevant for the process pp-> h X at high transverse momentum of the hadron h, when the initial protons are longitudinally polarized. We…

高能物理 - 唯象学 · 物理学 2008-11-26 Daniel de Florian , Werner Vogelsang , Federico Wagner

We consider Higgs production in gluon fusion and in particular the prediction of the Higgs transverse momentum distribution. We discuss the ambiguities affecting the matching procedure between fixed order matrix elements and the resummation…

高能物理 - 唯象学 · 物理学 2016-02-10 Emanuele Bagnaschi , Alessandro Vicini

The resummed transverse-momentum distribution for Higgs bosons produced via bottom-quark annihilation at the LHC is presented. Our results are obtained in the five-flavor scheme to NNLO+NNLL accuracy. We present a theoretical prediction…

高能物理 - 唯象学 · 物理学 2014-07-14 Robert Harlander , Anurag Tripathi , Marius Wiesemann

We investigate threshold resummation of soft gluon corrections for the s-channel process of a single top quark production in association with a Higgs boson in the Standard Model. We choose to work in the three-particle invariant mass…

高能物理 - 唯象学 · 物理学 2021-10-01 Anna Kulesza , Laura Moreno Valero , Vincent Theeuwes

We investigate \chi^{+/-}_1 \chi^0_2 pair production at LHC (CMS) with subsequent decays into leptons for the case of nonuniversal gaugino masses. Visibility of signal by an excess over SM background in 3l + no jets + E^{miss}_T events…

高能物理 - 唯象学 · 物理学 2007-05-23 S. I. Bityukov , N. V. Krasnikov

We study the effect of multiple soft gluon radiation on the kinematical distributions of the $t$-channel single top quark production at the LHC. By applying the transverse momentum dependent factorization formalism, large logarithms (of the…

高能物理 - 唯象学 · 物理学 2018-10-05 Qing-Hong Cao , Peng Sun , Bin Yan , C. -P. Yuan , Feng Yuan

One-loop radiative corrections to the production cross section of a pair of light charginos in e+e- colliders are calculated within the MSSM. Top and bottom quarks and squarks are considered in the loops, and they are renormalized using the…

高能物理 - 唯象学 · 物理学 2007-05-23 Marco A. Diaz , Steve F. King , Douglas A. Ross

In the framework of the littlest Higgs model with $T$ parity, we study the $W_H$-pair production at the CERN Large Hadron Collider up to the QCD next-to-leading order (NLO). The kinematic distributions of final decay products and the…

高能物理 - 唯象学 · 物理学 2012-10-01 Du Song-Ming , Guo Lei , Liu Wen , Ma Wen-Gan , Zhang Ren-You

We present a search for chargino-neutralino associated production using like electric charge dilepton events collected by the CDF II detector at the Fermilab Tevatron in proton-antiproton collisions at $\sqrt{s} = 1.96$ TeV. One lepton is…

高能物理 - 实验 · 物理学 2013-05-20 CDF Collaboration , T. Aaltonen , others

If supersymmetry near the TeV scale is realized in Nature, the pair production of scalar top squarks is expected to be observable at the Large Hadron Collider. Recently, effective field-theory methods were employed to obtain approximate…

高能物理 - 唯象学 · 物理学 2015-06-18 Alessandro Broggio , Andrea Ferroglia , Matthias Neubert , Leonardo Vernazza , Li Lin Yang

We present state of the art resummation predictions for differential cross sections in top-quark pair production at the LHC. They are derived from a formalism which allows the simultaneous resummation of both soft and small-mass logarithms,…

高能物理 - 唯象学 · 物理学 2016-05-25 Benjamin D. Pecjak , Darren J. Scott , Xing Wang , Li Lin Yang

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 search for electroweak production of supersymmetric particles is performed in two-lepton and three-lepton final states using recursive jigsaw reconstruction. The search uses data collected in 2015 and 2016 by the ATLAS experiment in…

高能物理 - 实验 · 物理学 2019-03-21 ATLAS Collaboration

We study inclusive b-hadron production in pp collisions at the LHC at different center-of-mass energies and compare with experimental data from the LHCb and CMS collaborations. Our predictions for cross sections differential in the…

高能物理 - 唯象学 · 物理学 2018-12-19 G. Kramer , H. Spiesberger

We consider Standard Model Higgs boson production through gluon--gluon fusion in hadron collisions. We combine the calculation of the next-to-next-to-leading order QCD corrections to the inclusive cross section with the resummation of…

高能物理 - 唯象学 · 物理学 2015-06-04 D. de Florian , G. Ferrera , M. Grazzini , D. Tommasini