Kaluza–Klein gluon + jets associated production at the Large Hadron Collider

The Kaluza–Klein excitations of gluons offer the exciting possibility of probing bulk Randall–Sundrum (RS) models. In these bulk models either a custodial symmetry or a deformation of the metric away from AdS is invoked in order to deal with electroweak precision tests. Addressing both these models,...

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Main Authors: A.M. Iyer, F. Mahmoudi, N. Manglani, K. Sridhar
Format: Article
Language:English
Published: Elsevier 2016-08-01
Series:Physics Letters B
Online Access:http://www.sciencedirect.com/science/article/pii/S0370269316302453
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author A.M. Iyer
F. Mahmoudi
N. Manglani
K. Sridhar
author_facet A.M. Iyer
F. Mahmoudi
N. Manglani
K. Sridhar
author_sort A.M. Iyer
collection DOAJ
description The Kaluza–Klein excitations of gluons offer the exciting possibility of probing bulk Randall–Sundrum (RS) models. In these bulk models either a custodial symmetry or a deformation of the metric away from AdS is invoked in order to deal with electroweak precision tests. Addressing both these models, we suggest a new channel in which to study the production of KK-gluons (gKK): one where it is produced in association with one or more hard jets. The cross-section for the gKK + jets channel is significant because of several contributing sub-processes. In particular, the 1-jet and the 2-jet associated processes are important because at these orders in QCD the qg and the gg initial states respectively come into play. We have performed a hadron-level simulation of the signal and present strategies to effectively extract the signal from what could potentially be a huge background. We present results for the kinematic reach of the LHC Run-II for different gKK masses in bulk-RS models.
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spelling doaj.art-bb2a84f93743493e9f4584b6ee1ae8182022-12-21T18:53:45ZengElsevierPhysics Letters B0370-26931873-24452016-08-01759C34234810.1016/j.physletb.2016.05.090Kaluza–Klein gluon + jets associated production at the Large Hadron ColliderA.M. Iyer0F. Mahmoudi1N. Manglani2K. Sridhar3Department of Theoretical Physics, Tata Institute of Fundamental Research, Homi Bhabha Road, Colaba, Mumbai 400 005, IndiaUniv Lyon, Univ Lyon 1, ENS de Lyon, CNRS, Centre de Recherche Astrophysique de Lyon UMR5574, F-69230 Saint-Genis-Laval, FranceDepartment of Physics, University of Mumbai, Kalina, Mumbai 400098, IndiaDepartment of Theoretical Physics, Tata Institute of Fundamental Research, Homi Bhabha Road, Colaba, Mumbai 400 005, IndiaThe Kaluza–Klein excitations of gluons offer the exciting possibility of probing bulk Randall–Sundrum (RS) models. In these bulk models either a custodial symmetry or a deformation of the metric away from AdS is invoked in order to deal with electroweak precision tests. Addressing both these models, we suggest a new channel in which to study the production of KK-gluons (gKK): one where it is produced in association with one or more hard jets. The cross-section for the gKK + jets channel is significant because of several contributing sub-processes. In particular, the 1-jet and the 2-jet associated processes are important because at these orders in QCD the qg and the gg initial states respectively come into play. We have performed a hadron-level simulation of the signal and present strategies to effectively extract the signal from what could potentially be a huge background. We present results for the kinematic reach of the LHC Run-II for different gKK masses in bulk-RS models.http://www.sciencedirect.com/science/article/pii/S0370269316302453
spellingShingle A.M. Iyer
F. Mahmoudi
N. Manglani
K. Sridhar
Kaluza–Klein gluon + jets associated production at the Large Hadron Collider
Physics Letters B
title Kaluza–Klein gluon + jets associated production at the Large Hadron Collider
title_full Kaluza–Klein gluon + jets associated production at the Large Hadron Collider
title_fullStr Kaluza–Klein gluon + jets associated production at the Large Hadron Collider
title_full_unstemmed Kaluza–Klein gluon + jets associated production at the Large Hadron Collider
title_short Kaluza–Klein gluon + jets associated production at the Large Hadron Collider
title_sort kaluza klein gluon jets associated production at the large hadron collider
url http://www.sciencedirect.com/science/article/pii/S0370269316302453
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