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We review the theoretical status of squark and gluino hadroproduction and provide numerical predictions for all squark and gluino pair-production processes at the Tevatron and at the LHC, with a particular emphasis on proton-proton…

High Energy Physics - Phenomenology · Physics 2015-05-28 W. Beenakker , S. Brensing , M. Krämer , A. Kulesza , E. Laenen , L. Motyka , I. Niessen

We perform threshold resummation of soft gluon corrections to the total cross sections and the invariant mass distributions for production of a top-antitop quark pair associated with a heavy electroweak boson $V = W^+$, $W^-$ or $Z$ in $pp$…

High Energy Physics - Phenomenology · Physics 2019-03-27 Anna Kulesza , Leszek Motyka , Daniel Schwartländer , Tomasz Stebel , Vincent Theeuwes

We perform threshold resummation of soft gluon corrections to the total cross section and the invariant mass distribution for the process $pp \to t\bar{t}H$. The resummation is carried out at next-to-next-to-leading-logarithmic (NNLL)…

High Energy Physics - Phenomenology · Physics 2018-06-13 Anna Kulesza , Leszek Motyka , Tomasz Stebel , Vincent Theeuwes

Motivated by the increased precision expected from LHC Run 3, equally accurate theory predictions are mandatory. As supersymmetry mass limits increase, predictions can be improved by threshold resummation. We examine the effects of…

High Energy Physics - Phenomenology · Physics 2022-05-17 Juri Fiaschi , Benjamin Fuks , Michael Klasen , Alexander Neuwirth

We present the threshold resummation for the cross section for electroproduction of heavy quarks. We work to next-to-leading logarithmic accuracy, and in single-particle inclusive kinematics. We provide next-to-leading and…

High Energy Physics - Phenomenology · Physics 2008-11-26 Eric Laenen , Sven-Olaf Moch

We present updated predictions for the cross-sections for pair production of squarks and gluinos at the LHC Run II. First of all, we update the calculations based on NLO+NLL partonic cross-sections by using the NNPDF3.0NLO global analysis.…

High Energy Physics - Phenomenology · Physics 2016-03-23 Wim Beenakker , Christoph Borschensky , Michael Krämer , Anna Kulesza , Eric Laenen , Simone Marzani , Juan Rojo

We gauge the impact of soft-gluon resummation on quark distributions by performing a simple fit of Deep Inelastic Scattering structure function data using next-to-leading order (NLO) and next-to-leading-logarithmic (NLL)-resummed…

High Energy Physics - Phenomenology · Physics 2009-11-11 Gennaro Corcella , Lorenzo Magnea

Using lattice simulations of quenched QCD we estimate the finite size effects present when a gluon plasma equilibrates in a slab geometry, i.e., finite width but large transverse dimensions. Significant differences are observed in the free…

High Energy Physics - Lattice · Physics 2009-10-31 Andy Gopie , Michael C. Ogilvie

In this paper, a combined resummation of soft and Coulomb corrections is performed for the associated production of the Higgs boson with a top quark pair at the LHC. We illustrate the similarities and critical differences between this…

High Energy Physics - Phenomenology · Physics 2019-07-24 Wan-Li Ju , Li Lin Yang

We calculate the cross-section of the near-threshold off-shell $ZZZ$ and $ZW^+W^-$ production at the International Linear Collider taking into account their instability and the principal part of NLO corrections. The calculations are…

High Energy Physics - Phenomenology · Physics 2015-05-20 Roman Pasechnik , Vladimir Kuksa

We present the cross-sections for the hadroproduction of squarks and gluinos in next-to-leading order of supersymmetric QCD. The four possible final states squark-antisquark, squark-squark, gluino-gluino and squark-gluino are analysed for…

High Energy Physics - Phenomenology · Physics 2007-05-23 R. Höpker , W. Beenakker

We discuss the motivation for resummation of the effects of initial-state soft-gluon radiation, to all orders in the strong coupling strength, for processes in which the near-threshold region in the partonic subenergy is important. We…

High Energy Physics - Phenomenology · Physics 2009-10-30 Edmond L. Berger , Harry Contopanagos

We perform a numerical analysis of the two particle azimuthal correlations at central rapidities generated in $p$A collisions within the framework of the Color Glass Condensate. We extend the standard computations to include the subeikonal…

High Energy Physics - Phenomenology · Physics 2023-04-26 Pedro Agostini , Tolga Altinoluk , Néstor Armesto

The one loop corrected effective Lagrangian for the quark-squark-chargino and quark-squark-neutralino interactions is computed. The effective Lagrangian takes into account the loop corrections arising from the exchange of the gluinos,…

High Energy Physics - Phenomenology · Physics 2009-11-10 Tarek Ibrahim , Pran Nath

We perform the all orders resummation of threshold enhanced contributions for the Higgs boson pair production cross section via gluon fusion, including finite top quark mass ($M_t$) effects. We present results for the total cross section…

High Energy Physics - Phenomenology · Physics 2018-09-26 Daniel de Florian , Javier Mazzitelli

The large width of the top quark influences the way gluons are radiated in top events, giving rise to interesting interference effects in top production and decay. We discuss top width effects in soft guon radiation in $\ee \to \tt$ at high…

High Energy Physics - Phenomenology · Physics 2008-02-03 L. H. Orr , Yu. L. Dokshitzer , V. A. Khoze , W. J. Stirling

The momentum spectrum and the polarization of charginos and neutralinos in squark decays are affected by gluon radiation in the decay process \tilde{q} \to q \tilde{\chi} (g). We determine these corrections and study their impact on the…

High Energy Physics - Phenomenology · Physics 2008-11-26 Roman Horsky , Michael Krämer , Alexander Mück , Peter M. Zerwas

With an eye toward LHC processes in which theoretical precisions of 1 percent are desired, we introduce the theory of the simultaneous YFS resummation of QED and QCD to compute the size of the expected resummed soft radiative threshold…

High Energy Physics - Phenomenology · Physics 2011-07-19 B. F. L. Ward , C. Glosser , S. Jadach , S. A. Yost

We present a general formalism for the calculation of finite-width contributions to the differential production cross sections of unstable particles at hadron colliders. In this formalism, which employs an effective-theory description of…

High Energy Physics - Phenomenology · Physics 2015-06-15 P. Falgari , A. S. Papanastasiou , A. Signer

We present threshold enhanced QCD corrections to the bottom quark energy distribution in Higgs boson decay and to hadroproduction in $l^+l^-$ annihilation beyond leading order in the strong coupling constant. This is achieved using the…

High Energy Physics - Phenomenology · Physics 2009-11-11 J. Blümlein , V. Ravindran