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The calculation of the next-to-leading order SUSY-QCD corrections to the production of squarks, gluinos and gauginos at the Tevatron is reviewed. The NLO corrections stabilize the theoretical predictions of the various production cross…

High Energy Physics - Phenomenology · Physics 2007-05-23 W. Beenakker , M. Kraemer , T. Plehn , M. Spira

Large double-logarithmic corrections are induced by soft gluon emissions near threshold in the semi-inclusive $e^+e^-$ annihilation (SIA) distributions, and must be resummed to all-orders in perturbation theory for reliable theoretical…

High Energy Physics - Phenomenology · Physics 2024-11-19 Zhen Xu , Hua Xing Zhu

We present the differential predictions for the rapidity distribution of a pair of leptons through the Drell-Yan (DY) process at the LHC taking into account the soft-virtual (SV) as well as next-to-soft virtual (NSV) resummation effects in…

High Energy Physics - Phenomenology · Physics 2023-06-07 A. H. Ajjath , Pooja Mukherjee , V. Ravindran , Aparna Sankar , Surabhi Tiwari

We present predictions of the total cross sections for pair production of squarks and gluinos at the LHC, including the stop-antistop production process. Our calculation supplements full fixed-order NLO predictions with resummation of…

High Energy Physics - Phenomenology · Physics 2012-07-03 P. Falgari , C. Schwinn , C. Wever

High-precision analyses are presented for the production of scalar sleptons, selectrons and smuons in supersymmetric theories, at future e+e- and e-e- linear colliders. Threshold production can be exploited for measurements of the selectron…

High Energy Physics - Phenomenology · Physics 2007-05-23 A. Freitas , A. von Manteuffel , P. M. Zerwas

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 present a formalism that resums threshold-enhanced logarithms to all orders in perturbative QCD for the rapidity distribution of any colorless particle produced in hadron colliders. We achieve this by exploiting the factorization…

High Energy Physics - Phenomenology · Physics 2018-04-18 Pulak Banerjee , Goutam Das , Prasanna K. Dhani , V. Ravindran

I present a unified approach to calculating the next-to-next-to-leading order (NNLO) soft and virtual QCD corrections to cross sections for electroweak, Higgs, QCD, and SUSY processes. I derive master formulas that can be used for any of…

High Energy Physics - Phenomenology · Physics 2009-11-10 Nikolaos Kidonakis

I discuss threshold resummation at NNLL accuracy in the standard moment-space approach in perturbative QCD for top-pair and single-top production. For top quark pair production I present new approximate NNLO results for the total cross…

High Energy Physics - Phenomenology · Physics 2014-07-04 Nikolaos Kidonakis

We present the resummed predictions for inclusive cross-section for Drell-Yan (DY) production as well as onshell $Z,W^\pm$ productions at next-to-next-to-next-to leading logarithmic (N$^{3}$LL) accuracy. Using the standard techniques, we…

High Energy Physics - Phenomenology · Physics 2020-01-31 Ajjath A. H. , Goutam Das , M. C. Kumar , Pooja Mukherjee , V. Ravindran , Kajal Samanta

We present three loop soft-plus-virtual (SV) corrections to the spin-2 production at the Large Hadron Collider (LHC). For this calculation, we make use of the recently computed quark and gluon three loop form factors for the spin-2…

High Energy Physics - Phenomenology · Physics 2020-12-02 Goutam Das , M. C. Kumar , Kajal Samanta

The high statistics that will be collected during the LHC Run-II (and beyond) open the path to precision measurements at the TeV scale, where the PDFs will play a crucial role in BSM searches. In the di-lepton final state accurate…

High Energy Physics - Phenomenology · Physics 2018-05-03 Juri Fiaschi , Elena Accomando , Francesco Hautmann , Michael Klasen , Stefano Moretti

We study the single hadron inclusive production in the forward rapidity region in proton-nucleus collisions. We find the long-standing negative cross section at next-to-leading-order (NLO) is driven by the large negative threshold…

High Energy Physics - Phenomenology · Physics 2020-12-01 Hao-Yu Liu , Zhong-Bo Kang , Xiaohui Liu

Resummation of large infrared logarithms in perturbation theory can, in certain circumstances, enhance the sensitivity to small gluon momenta and introduce spurious nonperturbative contributions. In particular, different procedures --…

High Energy Physics - Phenomenology · Physics 2015-06-25 M. Beneke , V. M. Braun

We calculate NLO QCD corrections to the lightest neutral Higgs boson production associated with top quark pair at hadron colliders in the minimal supersymmetric standard model(MSSM). Our calculation shows that the total QCD correction…

High Energy Physics - Phenomenology · Physics 2007-05-23 Wu Peng , Ma Wen-Gan , Hou Hong-Sheng , Zhang Ren-You , Han Liang , Jiang Yi

We calculate the complete next-to-leading-order (NLO) QCD corrections (including SUSY QCD corrections) to the inclusive total cross sections of the associated production processes $pp\rightarrow A^{0}\gamma+X$ in the minimal supersymmetric…

High Energy Physics - Phenomenology · Physics 2015-03-17 Liang Dai , Ding Yu Shao , Chong Sheng Li , Jun Gao , Hao Zhang

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

The first results on the complete next-to-next-to-leading order (NNLO) Quantum Chromodynamic (QCD) corrections to the production of di-leptons at hadron colliders in large extra dimension models with spin-2 particles are reported in this…

High Energy Physics - Phenomenology · Physics 2018-10-29 Taushif Ahmed , Pulak Banerjee , Prasanna K. Dhani , M. C. Kumar , Prakash Mathews , Narayan Rana , V. Ravindran

We consider the production of SUSY scalar pairs at lepton colliders, for c.m. energies much larger than the mass of the heaviest SUSY (real or virtual) particle involved in the process. In that energy regime, we derive the leading and…

High Energy Physics - Phenomenology · Physics 2009-11-07 M. Beccaria , M. Melles , F. M. Renard , C. Verzegnassi

We present state-of-the art predictions for the production of supersymmetric squarks and gluinos at the Large Hadron Collider (LHC), including soft-gluon resummation up to next-to-next-to-leading logarithmic (NNLL) accuracy, the resummation…

High Energy Physics - Phenomenology · Physics 2017-02-01 Wim Beenakker , Christoph Borschensky , Michael Krämer , Anna Kulesza , Eric Laenen