Constraints on a seesaw model leading to quasidegenerate neutrinos and signatures at the LHC

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dc.contributor.author Bambhaniya, Gulab
dc.contributor.author Khan, Subrata
dc.contributor.author Konar, Partha
dc.contributor.author Mondal, Tanmoy
dc.date.accessioned 2015-06-19T10:43:04Z
dc.date.available 2015-06-19T10:43:04Z
dc.date.issued 2015-05
dc.identifier.citation Bambhaniya, Gulab; Khan, Subrata; Konar, Partha and Mondal, Tanmoy and Mondal, Tanmoy, “Constraints on a seesaw model leading to quasidegenerate neutrinos and signatures at the LHC”, Physical Review D, DOI: 10.1103/PhysRevD.91.095007, vol. 91, no. 9, May 2015. en_US
dc.identifier.issn 1550-2368
dc.identifier.uri http://dx.doi.org/10.1103/PhysRevD.91.095007
dc.identifier.uri https://repository.iitgn.ac.in/handle/123456789/1763
dc.description.abstract We consider a variant of TeV-scale seesaw models in which three additional heavy right-handed neutrinos are added to the standard model to generate the quasidegenerate light neutrinos. This model is theoretically interesting since it can be fully rebuilt from the experimental data of neutrino oscillations except for an unknown factor in the Dirac-Yukawa coupling. We study the constraints on this coupling coming from metastability of electroweak vacuum. An even stronger bound comes from the lepton flavor violating decays on this model, especially in a heavy neutrino mass scenario which is within the collider’s reach. Bestowed with these constrained parameters, we explore the production and discovery potential coming from these heavy neutrinos at the 14 TeV run of the Large Hadron Collider. Signatures with trilepton final state together with backgrounds are considered in a realistic simulation. en_US
dc.description.statementofresponsibility by Gulab Bambhaniya, Subrata Khan, Partha Konar and Tanmoy Mondal
dc.format.extent vol. 91, no. 9
dc.language.iso en en_US
dc.publisher American Physical Society en_US
dc.subject Hadron Collider en_US
dc.subject Quasidegenerate en_US
dc.subject TeV-scale en_US
dc.subject Trilepton en_US
dc.title Constraints on a seesaw model leading to quasidegenerate neutrinos and signatures at the LHC en_US
dc.type Article en_US
dc.relation.journal Physical Review D


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