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The process of stop-chargino production at LHC has been calculated in the Minimal Supersymmetric Standard Model at the complete electroweak one-loop level, assuming a mSUGRA symmetry breaking scheme. Several properties of the angular and…

High Energy Physics - Phenomenology · Physics 2010-01-26 M. Beccaria , G. Macorini , E. Mirabella , L. Panizzi , F. M. Renard , C. Verzegnassi

We have computed the complete one-loop electroweak effects in the MSSM for single top (and single antitop) production in the $t$-channel at hadron colliders, generalizing a previous analysis performed for the dominant $dt$ final state and…

High Energy Physics - Phenomenology · Physics 2008-11-26 M. Beccaria , C. M. Carloni Calame , G. Macorini , E. Mirabella , F. Piccinini , F. M. Renard , C. Verzegnassi

We compute the complete electroweak one-loop effect on the process of $t$-channel single top production at LHC in the Standard Model and in the MSSM within the mSUGRA symmetry breaking scheme. We find that the one-loop electroweak SM effect…

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

We compute the complete one loop electroweak effects in the MSSM for the eight processes of single top (and single antitop) production in the $t$-channel at hadron colliders, generalizing a previous analysis performed for the dominant $dt$…

High Energy Physics - Phenomenology · Physics 2007-05-23 M. Beccaria , G. Macorini , F. M. Renard , C. Verzegnassi

We compute, in the MSSM framework, the total electroweak contributions at one loop for the process pp -> tW+X, initiated by the parton process bg -> tW. The supersymmetric effect is analyzed for various choices of the SUSY benchmark points.…

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

We present the first complete calculation of the one-loop electroweak effect in the process of semi-inclusive bottom-Higgs production at LHC in the MSSM. The size of the electroweak contribution depends on the choice of the final produced…

High Energy Physics - Phenomenology · Physics 2010-12-23 M. Beccaria , G. O. Dovier , G. Macorini , E. Mirabella , L. Panizzi , F. M. Renard , C. Verzegnassi

We compute, in the MSSM framework, the sum of the one-loop electroweak and of the total QED radiation effects for the process $pp \to t W+X$, initiated by the parton process $bg\to tW$. Combining these terms with the existing NLO…

High Energy Physics - Phenomenology · Physics 2008-11-26 M. Beccaria , C. M. Carloni Calame , G. Macorini , G. Montagna , F. Piccinini , F. M. Renard , C. Verzegnassi

We consider various processes of single top production at LHC in the theoretical framework of the MSSM and examine the role of the supersymmetric electroweak one-loop corrections in a special moderately light SUSY scenario, in an initial…

High Energy Physics - Phenomenology · Physics 2008-11-26 Matteo Beccaria , Fernand M. Renard , Claudio Verzegnassi

For the search for electroweak particles in the Minimal Supersymmetric Standard Model (MSSM) as well as for future precision analyses of these particles an accurate knowledge of their production and decay properties is mandatory. We review…

High Energy Physics - Phenomenology · Physics 2018-01-17 S. Heinemeyer , C. Schappacher

We have found the possible region of parameters of the minimal supersymmetric standard model (MSSM) within the bounds from the experimental results of the Higgs mass, the rare decay mode of $b$-quark, the muon $g-2$, the dark matter…

High Energy Physics - Phenomenology · Physics 2017-05-25 M. Jimbo , T. Kon , Y. Kouda , M. Ichikawa , Y. Kurihara , T. Ishikawa , K. Kato , M. Kuroda

We calculate cross sections for mixed stop-sbottom pair production at the LHC, analogous to single-top production, a weak process involving the W-t(i)-b(j) vertex. While coupling-suppressed relative to QCD same-flavor squark pair…

High Energy Physics - Phenomenology · Physics 2008-11-26 D. Berdine , D. Rainwater

We present a complete 1-loop study of the electroweak corrections to the process $ug\to dW^+$ in MSSM and SM. The occurrence of a number of remarkable properties in the behavior of the helicity amplitudes at high energies is stressed, and…

High Energy Physics - Phenomenology · Physics 2008-11-26 G. J. Gounaris , J. Layssac , F. M. Renard

We discuss several aspects of state-of-the-art calculations of radiative electroweak symmetry breaking in supergravity models. These models have a five-dimensional parameter space in contrast with the 21-dimensional one of the MSSM. We…

High Energy Physics - Phenomenology · Physics 2009-10-22 S. Kelley , J. Lopez , D. Nanopoulos , H. Pois , K. Yuan

Inspired by the recent LHC Higgs data and null search results of supersymmetry (SUSY), we scan the parameter space of the Minimal Supersymmetric Standard Model (MSSM) with relatively heavy sparticles (1-3 TeV). Then in the parameter space…

High Energy Physics - Phenomenology · Physics 2015-06-11 Ning Liu , Lei Wu , Pei Wen Wu , Jin Min Yang

We propose using the lightest CP-even Higgs boson in the minimal supersymmetric standard model (MSSM) to probe the stop sector. Unlike measuring stop masses in production/decay processes which requires knowledge of masses and mixing angles…

High Energy Physics - Phenomenology · Physics 2008-11-26 Radovan Dermisek , Ian Low

Using the data collected during Run I of LHC operation the CMS Collaboration performed multiple analyses searching for the direct electroweak production of supersymmetric particles in proton-proton collisions. Different decay modes of the…

High Energy Physics - Experiment · Physics 2014-09-15 Pieter Everaerts

The complete one-loop electroweak corrections to charged Higgs boson pair production in $\gamma\gamma$ collision mode at linear colliders in the minimal supersymmetric standard model (MSSM), are calculated in this paper. We discuss the…

High Energy Physics - Phenomenology · Physics 2009-11-11 Wang Lei , Jiang Yi , Ma Wen-Gan , Han Liang , Zhang Ren-You

We consider two polarization asymmetries in the process of top-antitop production at LHC. We show that the theoretical predictions for these two quantities, at the strong and electroweak partonic one-loop level, are free of QCD and QED…

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

We describe the computation of the $\mathcal{O}(\alpha^3)$ corrections for single top (and single anti-top) production in the $t$-channel at hadron colliders. We show also The genuine one loop SUSY contribution to these processes. Such…

High Energy Physics - Phenomenology · Physics 2010-11-11 E. Mirabella

The process of charged Higgs production in association with a top quark at the LHC has been calculated at the complete NLO electroweak level both in a Two Higgs Doublets Model and in the Minimal Supersymmetric Standard Model, assuming a…

High Energy Physics - Phenomenology · Physics 2009-10-29 M. Beccaria , G. Macorini , L. Panizzi , F. M. Renard , C. Verzegnassi
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