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Title: Search for gauge extensions of the MSSM at the LHC
Authors: Ahmed, Ali
Demir, Durmuş Ali
Frank, Mariana
Turan, İsmail
Keywords: Minimal supersymmetric standard model
Extensions of electroweak gauge sector
Higgs boson
Supersymmetric partners of known particles
Publisher: American Physical Society
Source: Ahmed, A., Demir, D. A., Frank, M., and Turan, İ. (2009). Search for gauge extensions of the MSSM at the LHC. Physical Review D - Particles, Fields, Gravitation and Cosmology, 79(9). doi:10.1103/PhysRevD.79.095001
Abstract: The extensions of the minimal supersymmetric model (MSSM), driving mainly from the need to solve the μ problem, involve novel matter species and gauge groups. These extended MSSM models can be searched for at the LHC via the effects of the gauge and Higgs bosons or their fermionic partners. Traditionally, the focus has been on the study of the extra forces induced by the new gauge and Higgs bosons present in such models. An alternative way of studying such effects is through the superpartners of matter species and the gauge forces. We thus consider a U(1)′ gauge extension of the MSSM, and perform an extensive study of the signatures of the model through the production and decays of the scalar quarks and gluino, which are expected to be produced copiously at the LHC. After a detailed study of the distinctive features of such models with regard to the signatures at the LHC, we carry out a detailed Monte-Carlo analysis of the signals from the process pp→nleptons+mjets+E T, and compare the resulting distributions with those predicted by the MSSM. Our results show that the searches for the extra gauge interactions in the supersymmetric framework can proceed not only through the forces mediated by the gauge and Higgs bosons but also through the superpartner forces mediated by the gauge and Higgs fermions. Analysis of the events induced by the squark/gluino decays presented here is complementary to the direct Z′ searches at the LHC.
ISSN: 1550-7998
Appears in Collections:Physics / Fizik
Scopus İndeksli Yayınlar Koleksiyonu / Scopus Indexed Publications Collection
WoS İndeksli Yayınlar Koleksiyonu / WoS Indexed Publications Collection

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