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Squark and Gluino Production at Hadron Colliders

We have determined the theoretical predictions for the cross-sections of squark and gluino production at $\ppb$ and $pp$ colliders (Tevatron and LHC) in next-to-leading order of supersymmetric QCD. By reducing the dependence on the renormalization/factorizatio n scale considerably, the theoretically...

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Detalles Bibliográficos
Autores principales: Beenakker, W, Höpker, R, Spira, Michael, Zerwas, Peter M
Lenguaje:eng
Publicado: 1996
Materias:
Acceso en línea:https://dx.doi.org/10.1016/S0550-3213(97)80027-2
http://cds.cern.ch/record/313638
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author Beenakker, W
Höpker, R
Spira, Michael
Zerwas, Peter M
author_facet Beenakker, W
Höpker, R
Spira, Michael
Zerwas, Peter M
author_sort Beenakker, W
collection CERN
description We have determined the theoretical predictions for the cross-sections of squark and gluino production at $\ppb$ and $pp$ colliders (Tevatron and LHC) in next-to-leading order of supersymmetric QCD. By reducing the dependence on the renormalization/factorizatio n scale considerably, the theoretically predicted values for the cross-sections are much more stable if these higher-order corrections are implemented. If squarks and gluinos are discovered, this improved stability translates into a reduced error on the masses, as extracted experimentally from the size of the production cross-sections. The cross-sections increase significantly if the next-to-leading order corrections are included at a renormalization/factorization scale near the average mass of the produced massive particles. This rise results in improved lower bounds on squark and gluino masses. By contrast, the shape of the transverse-momentum and rapidity distributions remains nearly unchanged when the next-to-leading order corrections are included.
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institution Organización Europea para la Investigación Nuclear
language eng
publishDate 1996
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spelling cern-3136382019-09-30T06:29:59Zdoi:10.1016/S0550-3213(97)80027-2http://cds.cern.ch/record/313638engBeenakker, WHöpker, RSpira, MichaelZerwas, Peter MSquark and Gluino Production at Hadron CollidersParticle Physics - PhenomenologyWe have determined the theoretical predictions for the cross-sections of squark and gluino production at $\ppb$ and $pp$ colliders (Tevatron and LHC) in next-to-leading order of supersymmetric QCD. By reducing the dependence on the renormalization/factorizatio n scale considerably, the theoretically predicted values for the cross-sections are much more stable if these higher-order corrections are implemented. If squarks and gluinos are discovered, this improved stability translates into a reduced error on the masses, as extracted experimentally from the size of the production cross-sections. The cross-sections increase significantly if the next-to-leading order corrections are included at a renormalization/factorization scale near the average mass of the produced massive particles. This rise results in improved lower bounds on squark and gluino masses. By contrast, the shape of the transverse-momentum and rapidity distributions remains nearly unchanged when the next-to-leading order corrections are included.hep-ph/9610490DESY-96-150CERN-TH-96-215oai:cds.cern.ch:3136381996-10-25
spellingShingle Particle Physics - Phenomenology
Beenakker, W
Höpker, R
Spira, Michael
Zerwas, Peter M
Squark and Gluino Production at Hadron Colliders
title Squark and Gluino Production at Hadron Colliders
title_full Squark and Gluino Production at Hadron Colliders
title_fullStr Squark and Gluino Production at Hadron Colliders
title_full_unstemmed Squark and Gluino Production at Hadron Colliders
title_short Squark and Gluino Production at Hadron Colliders
title_sort squark and gluino production at hadron colliders
topic Particle Physics - Phenomenology
url https://dx.doi.org/10.1016/S0550-3213(97)80027-2
http://cds.cern.ch/record/313638
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AT hopkerr squarkandgluinoproductionathadroncolliders
AT spiramichael squarkandgluinoproductionathadroncolliders
AT zerwaspeterm squarkandgluinoproductionathadroncolliders