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Related papers: Toward loop level study of supersymmetric models a…

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Motivated by the shift in experimental attention towards electroweak supersymmetric particle production at the CERN LHC, we update in this paper our precision predictions at next-to-leading order of perturbative QCD matched to resummation…

High Energy Physics - Phenomenology · Physics 2014-02-07 Benjamin Fuks , Michael Klasen , David R. Lamprea , Marcel Rothering

Due to the greater experimental precision expected from the currently ongoing LHC Run 3, equally accurate theoretical predictions are essential. We update the documentation of the Resummino package, a program dedicated to precision cross…

High Energy Physics - Phenomenology · Physics 2023-08-09 J. Fiaschi , B. Fuks , M. Klasen , A. Neuwirth

We have determined the QCD corrections to the production of squark-antisquark pairs in $p\bar p$ collisions at the Tevatron. If the next-to-leading order corrections are taken into account, the renormalization/factorization scale dependence…

High Energy Physics - Phenomenology · Physics 2009-10-28 W. Beenakker , R. Höpker , M. Spira , P. M. Zerwas

We examine various aspects of supersymmetric particle production at linear $e^+e^-$ colliders operating at a centre of mass energy of $\sqrt{s}=500$ GeV, and integrated luminosity of $\int {\cal L}dt=20-50$ fb$^{-1}$. Working within the…

High Energy Physics - Phenomenology · Physics 2014-11-17 Howard Baer , Ray Munroe , Xerxes Tata

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 have calculated the one-loop supersymmetric corrections to the 2 to 2 parton scattering subprocesses antiq q to antiq q, antiq q to g g, g q to g q and g g to g g, including form-factor corrections and box diagrams with internal squarks…

High Energy Physics - Phenomenology · Physics 2009-09-11 John Ellis , Douglas Ross

We investigate the potentials of future high energy lepton-proton colliders to detect supersymmetric particles in the charged current type $lp\to\tilde\nu_l\tilde qX$, $l=e,\mu$, reactions. We also study their decays by using the mass…

High Energy Physics - Phenomenology · Physics 2009-11-07 A. T. Alan , S. Sultansoy

Very precise measurements of masses and cross sections are expected to be achievable with a future linear collider. With such an accuracy one must incorporate loop corrections in order to make meaningful predictions for the underlying new…

High Energy Physics - Phenomenology · Physics 2013-09-26 Aoife Bharucha

The data recorded by the ALEPH detector at centre-of-mass energies of 161, 170, and 172 GeV are analysed for signals of chargino and neutralino production. No evidence of a signal is found, although candidate events consistent with the…

High Energy Physics - Experiment · Physics 2012-08-27 The ALEPH Collaboration

We propose a new method of detecting supersymmetry at LEP2 when R-parity is violated by an LLE operator. We consider the processes $e\gamma\ra\snu_j e_k$ and $e\gamma \ra \slep_k \bar{\nu}_j$. These are sensitive to seven of the nine…

High Energy Physics - Phenomenology · Physics 2011-07-19 B. C. Allanach , H. Dreiner , P. Morawitz , M. D. Williams

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

The sensitivity of future electron-proton colliders, the LHeC and FCC-eh, to weakly-produced supersymmetric particles is evaluated in this article. Supersymmetric scenarios where charginos ($\tilde{\chi}_1^{\pm}$) and neutralinos…

High Energy Physics - Phenomenology · Physics 2020-05-26 Georges Azuelos , Monica D'Onofrio , Sho Iwamoto , Kechen Wang

We present a first and extensive study of threshold resummation effects for supersymmetric (SUSY) particle production at hadron colliders, focusing on Drell-Yan like slepton-pair and slepton-sneutrino associated production. After confirming…

High Energy Physics - Phenomenology · Physics 2008-11-26 G. Bozzi , B. Fuks , M. Klasen

A case study will be presented to investigate width effects in the precise determination of slepton masses at the e+e- TESLA Linear Collider.

High Energy Physics - Phenomenology · Physics 2007-05-23 Hans-Ulrich Martyn

We present the calculations of the complete next-to-leading order (NLO) inclusive total cross sections for the associated production processes $pp\to \tilde{t}_i\tilde{\chi}_k^-+X$ in the Minimal Supersymmetric Standard Model at the CERN…

High Energy Physics - Phenomenology · Physics 2011-09-13 Li Gang Jin , Chong Sheng Li , Jian Jun Liu

We analyze the associated production at future high--energy $e^+e^-$ colliders, of first generation sleptons with neutralinos and charginos in the modes $e^+ e^-$ and $e \gamma$, in the framework of the Minimal Supersymmetric extension of…

High Energy Physics - Phenomenology · Physics 2009-01-07 Aseshkrishna Datta , Abdelhak Djouadi , Margarete Muhlleitner

A measurement of observables sensitive to spin correlations in $t\bar{t}$ production is presented, using 36.1 fb$^{-1}$ of $pp$ collision data at $\sqrt{s} = 13$ TeV recorded with the ATLAS detector at the Large Hadron Collider.…

High Energy Physics - Experiment · Physics 2020-11-11 ATLAS Collaboration

We compute total cross sections for various slepton pair production reactions in next-to-leading order QCD. For pbarp collisions at root S=2TeV, we find leading order cross sections to be enhanced by typically 35% to 40%. For pp collisions…

High Energy Physics - Phenomenology · Physics 2009-10-30 Howard Baer , B. W. Harris , Mary Hall Reno

We present a calculation of slepton pair production at the LHC at next-to-next-to-leading logarithmic (NNLL) accuracy, matched to approximate next-to-next-to-leading order (aNNLO) QCD corrections. We collect the relevant analytical…

High Energy Physics - Phenomenology · Physics 2019-11-07 J. Fiaschi , M. Klasen , M. Sunder

We investigate what can be learned at a linear collider about the sector of electroweak symmetry breaking from a precise measurement of the Higgs boson production cross section through the process e+e- -> hZ. We focus on deviations from the…

High Energy Physics - Phenomenology · Physics 2009-11-20 S. Dawson , S. Heinemeyer