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dc.contributor.authorAzizi, Kazem
dc.contributor.authorOlgun, Asiye Tuğba
dc.contributor.authorTavukoğlu, Zeynep
dc.date.accessioned2016-03-11T20:19:36Z
dc.date.available2016-03-11T20:19:36Z
dc.date.issued2015-12-30
dc.identifier.citationAzizi, K., Olgun, A. T., & Tavukoğlu, Z. (2015). Comparative analysis of the Λb → Λℓ+ℓ- decay in the SM, SUSY, and RS model with custodial protection. Physical Review D - Particles, Fields, Gravitation and Cosmology, 92(11), 1-27. http://dx.doi.org/10.1103/PhysRevD.92.115025en_US
dc.identifier.issn1550-7998
dc.identifier.other115025 (Scopus)
dc.identifier.urihttp://dx.doi.org/10.1103/PhysRevD.92.115025
dc.identifier.urihttp://hdl.handle.net/11376/2410
dc.descriptionAzizi, Kazem (Dogus Author)en_US
dc.description.abstractWe comparatively analyze the rare Λb→Λℓ+ℓ- channel in the standard model, supersymmetry, and Randall-Sundrum model with custodial protection (RSc). Using the parametrization of the matrix elements entering the low-energy effective Hamiltonian in terms of form factors, we calculate the corresponding differential decay width and lepton forward-backward asymmetry in these models. We compare the results obtained with the most recent data from LHCb as well as lattice QCD results on the considered quantities. It is obtained that the standard model, with the form factors calculated in light-cone QCD sum rules, cannot reproduce some experimental data on the physical quantities under consideration, but the supersymmetry model can do it. The RSc model predictions are roughly the same as the standard model, and there are no considerable differences between the predictions of these two models. In the case of differential decay rate, the data in the range 4 GeV2/c4≤q2≤6 GeV2/c4 cannot be described by any of the considered models.en_US
dc.language.isoengen_US
dc.publisherAmerican Physical Societyen_US
dc.relation.isversionof10.1103/PhysRevD.92.115025en_US
dc.rightsinfo:eu-repo/semantics/openAccessen_US
dc.subjectRandall-Sundrum Modelen_US
dc.subjectQCD Sum Rulesen_US
dc.subjectEffective Hamiltonianen_US
dc.subjectDecay Rateen_US
dc.subjectLattice Field Theoryen_US
dc.titleComparative analysis of the Λb → Λℓ+ℓ- decay in the SM, SUSY, and RS model with custodial protectionen_US
dc.typearticleen_US
dc.relation.journalPhysical Review D - Particles, Fields, Gravitation and Cosmologyen_US
dc.contributor.departmentDoğuş Üniversitesi, Fen Edebiyat Fakültesi, Fizik Bölümüen_US
dc.contributor.authorIDTR231472en_US
dc.contributor.authorIDTR231471en_US
dc.identifier.volume92en_US
dc.identifier.issue11en_US
dc.identifier.startpage1en_US
dc.identifier.endpage27en_US


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