Improved Bounds on the Heavy Neutrino Productions at the LHC

Show simple item record

dc.contributor.author Okada, Nobuchika
dc.date.accessioned 2019-05-14T20:35:48Z
dc.date.available 2019-05-14T20:35:48Z
dc.date.copyright 2016
dc.date.issued 2016-02-05
dc.identifier.citation Das, A., Okada, N. {2016): Improved Bounds on the Heavy Neutrino Productions at the LHC. Physical Review D, 93(3). DOI: https·//doi org/J o 1103/PbysRevD 93 033003 en_US
dc.identifier.issn 2470-0010
dc.identifier.uri http://ir.ua.edu/handle/123456789/5540
dc.description.abstract The Majorana neutrino in the type-I seesaw and the pseudo-Dirac neutrinos in the inverse seesaw can have sizable mixings with the light neutrinos in the standard model, through which the heavy neutrinos can be produced at the LHC. In producing the heavy neutrinos, we study a variety of initial states such as quark-quark, quark-gluon and gluon-gluon as well as photon mediated processes. For the Majorana heavy neutrino production, we consider a same-sign dilepton plus dijet as the signal events. Using the recent ATLAS and CMS data at √s=8  TeV with 20.3 and 19.7  fb−1 luminosities, respectively, we obtain direct upper bounds on the light-heavy neutrino mixing angles. For the pseudo-Dirac heavy neutrino production we consider the final sate with a trilepton plus missing energy as the signal events. Using the recent anomalous multilepton search by CMS at √s=8  TeV with 19.5  fb−1 luminosity, we obtain upper bounds on the mixing angles. Taking the varieties of initial states into account, the previously obtained upper bounds on the mixing angles have been improved. We scale our results at the 8 TeV LHC to obtain a prospective search reach at the 14 TeV LHC with high luminosities. en_US
dc.format.mimetype application/pdf en_US
dc.language English en_US
dc.publisher American Physical Society en_US
dc.title Improved Bounds on the Heavy Neutrino Productions at the LHC en_US
dc.type text en_US
dc.rights.holder American Physical Society en_US


Files in this item

This item appears in the following Collection(s)

Show simple item record

Search DSpace


Browse

My Account