English
Related papers

Related papers: Squark anti-squark pair production at the LHC: the…

200 papers

Radiative corrections of strong and electroweak interactions are presented at next-to-leading order for the production of a Higgs boson plus two hard jets via weak interactions at the LHC. The calculation includes all weak-boson fusion and…

High Energy Physics - Phenomenology · Physics 2008-11-26 M. Ciccolini , A. Denner , S. Dittmaier

We take a step towards a complete NLO-QCD determination of the production of a pair of Higgs scalars in the MSSM. Exploiting a low-energy theorem that connects the Higgs-gluon interactions to the derivatives of the gluon self-energy, we…

High Energy Physics - Phenomenology · Physics 2016-05-04 A. Agostini , G. Degrassi , R. Gröber , P. Slavich

In this work we present for the first time predictions for top-quark pair differential distributions at the LHC at NNLO QCD accuracy and including EW corrections. For the latter we include not only contributions of ${\cal O}(\alpha_s^2…

High Energy Physics - Phenomenology · Physics 2017-11-16 Michal Czakon , David Heymes , Alexander Mitov , Davide Pagani , Ioannis Tsinikos , Marco Zaro

We present details of a calculation of the cross section for hadronic top-antitop production in next-to-leading order (NLO) QCD, including the decays of the top and antitop into bottom quarks and leptons. This calculation is based on matrix…

High Energy Physics - Phenomenology · Physics 2012-11-07 Ansgar Denner , Stefan Dittmaier , Stefan Kallweit , Stefano Pozzorini

We present a complete next-to-leading order (NLO) calculation for the total cross section for inclusive Higgs pair production via bottom-quark fusion at the CERN Large Hadron Collider (LHC) in the minimal supersymmetric standard model…

High Energy Physics - Phenomenology · Physics 2008-11-26 Sally Dawson , Chung Kao , Yili Wang

We determine the real parts of electroweak matching conditions relevant for top quark pair production close to threshold in e+e- annihilation at next-to-next-to-leading logarithmic (NNLL) order. Numerically the corrections are comparable to…

High Energy Physics - Phenomenology · Physics 2008-11-26 A. H. Hoang , C. J. Reisser

We study the effect of soft gluon emission in the hadroproduction of gluino-gluino and squark-antisquark pairs at the next-to-leading logarithmic (NLL) accuracy within the framework of the minimal supersymmetric model. We present the…

High Energy Physics - Phenomenology · Physics 2009-11-10 A. Kulesza , L. Motyka

In this work we estimate the heavy quark production in proton-proton and proton-nucleus collisions at LHC energies using the color dipole formalism and the solution of the running coupling Balitsky-Kovchegov equation. Nuclear effects are…

High Energy Physics - Phenomenology · Physics 2015-05-30 E. R. Cazaroto , V. P. Goncalves , F. S. Navarra

We compute the O(alpha_s) QCD corrections to the partonic process gg -> t-tbar-Z at the LHC. This partonic channel is the dominant component of the scattering process pp -> t-tbar-Z, which will be important for measuring the t-tbar-Z…

High Energy Physics - Phenomenology · Physics 2008-11-26 Achilleas Lazopoulos , Kirill Melnikov , Frank Petriello

Non-singlet ${\cal{O}}(\alpha_s^2)$ corrections from light quarks are calculated analytically for the massive quark-antiquark pair production rates through the vector, axial-vector, scalar and pseudoscalar currents for all energies above…

High Energy Physics - Phenomenology · Physics 2009-10-30 A. H. Hoang , T. Teubner

We compute the leading order (LO) $qg\to q \gamma$ and next-to-leading order (NLO) $gg\to q{\bar q} \gamma$ contributions to inclusive photon production in proton-proton (p+p) collisions at the LHC. These channels provide the dominant…

High Energy Physics - Phenomenology · Physics 2019-02-27 Sanjin Benić , Kenji Fukushima , Oscar Garcia-Montero , Raju Venugopalan

We present the calculation of the complete NLO corrections to the off-shell top-quark pair production in the $\ell+j$ decay channel, denoted as $pp \to \ell^- \bar{\nu}_l\, j_b j_b \,jj + X$, where $\ell^- = e^-,\, \mu^-$. The calculation…

High Energy Physics - Phenomenology · Physics 2026-05-14 Leon Mans , Daniel Stremmer , Malgorzata Worek

The calculation of NLO QCD corrections to the production cross section of two bottom pairs at the LHC is briefly summarized. We describe the pp -> b anti-b b anti-b+X process both in the 4-flavor and 5-flavor scheme and investigate the…

High Energy Physics - Phenomenology · Physics 2014-01-13 Malgorzata Worek

We present a calculation of the next-to-leading-order QCD and electroweak corrections to WWW production with leptonically decaying $\mathrm{W}$ bosons at the LHC, fully taking into account off-shell contributions, intermediary resonances,…

High Energy Physics - Phenomenology · Physics 2020-03-18 Stefan Dittmaier , Gernot Knippen , Christopher Schwan

The next-to-next-to-leading order (NNLO) QCD corrections to top quark threshold pair production in gamma-gamma collisions are computed. The NNLO effects turn out to be significant. Threshold cross sections in gamma-gamma and e+e- collisions…

High Energy Physics - Phenomenology · Physics 2014-11-17 Andrzej Czarnecki , Kirill Melnikov

The $B_c$ meson pair, including pairs of pseudoscalar states and vector states, productions in proton-proton collisions are investigated at the next-to-leading order (NLO) accuracy in the nonrelativistic quantum chromodynamics factorization…

High Energy Physics - Phenomenology · Physics 2024-02-09 Zi-Qiang Chen , Long-Bin Chen , Cong-Feng Qiao

We present the full O(alpha_s) longitudinal spin-spin correlations for heavy-quark pair production at e+ e- high-energy colliders in closed analytical form. In such reactions, quark and antiquark have strongly correlated spins, and the…

High Energy Physics - Phenomenology · Physics 2009-10-30 M. M. Tung , J. Bernabeu , J. Penarrocha

We present theoretical predictions for the production of top-quark pairs in association with jets at the LHC including electroweak (EW) corrections. First, we present and compare differential predictions at the fixed-order level for $t \bar…

High Energy Physics - Phenomenology · Physics 2018-05-09 Christian Gütschow , Jonas M. Lindert , Marek Schönherr

We consider the production of heavy ($b,t$) quark pairs at proton colliders in the theoretical framework of the MSSM. Under the assumption of a "moderately" light SUSY scenario, we first compute the leading logarithmic MSSM contributions at…

High Energy Physics - Phenomenology · Physics 2008-11-26 M. Beccaria , F. M. Renard , C. Verzegnassi

We present the exact next-to-leading order (NLO) QCD corrections to dijet production at the LHC via quark contact interactions, with different color and chiral structures induced from new physics. Following the recent analysis of quark…

High Energy Physics - Phenomenology · Physics 2015-06-04 Jun Gao , Chong Sheng Li , C. -P. Yuan