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Search for disappearing tracks as a signature of new long-lived particles in proton-proton collisions at √s=13 TeV

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dc.contributor.author CMS Collaboration en_US
dc.contributor.author Sirunyan, A. M. en_US
dc.contributor.author CHAUHAN, S. en_US
dc.contributor.author DUBE, SOURABH en_US
dc.contributor.author HEGDE, V. en_US
dc.contributor.author KAPOOR, A. en_US
dc.contributor.author KOTHEKAR, K. en_US
dc.contributor.author PANDEY, S. en_US
dc.contributor.author RANE, A. en_US
dc.contributor.author SHARMA, SEEMA et al. en_US
dc.date.accessioned 2019-09-11T05:58:41Z
dc.date.available 2019-09-11T05:58:41Z
dc.date.issued 2018-08 en_US
dc.identifier.citation Journal of High Energy Physics, 2018(8). en_US
dc.identifier.issn 1126-6708 en_US
dc.identifier.issn 1029-8479 en_US
dc.identifier.uri http://dr.iiserpune.ac.in:8080/xmlui/handle/123456789/4071
dc.identifier.uri https://doi.org/10.1007/JHEP08(2018)016 en_US
dc.description.abstract A search is presented for long-lived charged particles that decay within the CMS detector and produce the signature of a disappearing track. A disappearing track is an isolated track with missing hits in the outer layers of the silicon tracker, little or no energy in associated calorimeter deposits, and no associated hits in the muon detectors. This search uses data collected with the CMS detector in 2015 and 2016 from proton-proton collisions at a center-of-mass energy of 13 TeV at the LHC, corresponding to an integrated luminosity of 38.4 fb−1. The results of the search are interpreted in the context of the anomaly-mediated supersymmetry breaking model. The data are consistent with the background-only hypothesis. Limits are set on the product of the cross section for direct production of charginos and their branching fraction to a neutralino and a pion, as a function of the chargino mass and lifetime. At 95% confidence level, charginos with masses below 715 (695) GeV are excluded for a lifetime of 3 (7) ns, as are charginos with lifetimes from 0.5 to 60 ns for a mass of 505 GeV. These are the most stringent limits using a disappearing track signature on this signal model for chargino lifetimes above ≈0.7 ns. en_US
dc.language.iso en en_US
dc.publisher Springer Nature en_US
dc.subject Disappearing tracks en_US
dc.subject Singly produced en_US
dc.subject Third-generation en_US
dc.subject Scalar leptoquark decaying en_US
dc.subject lepton and a bottom quark en_US
dc.subject Proton-proton collisions en_US
dc.subject 2018 en_US
dc.title Search for disappearing tracks as a signature of new long-lived particles in proton-proton collisions at √s=13 TeV en_US
dc.type Article en_US
dc.contributor.department Dept. of Physics en_US
dc.identifier.sourcetitle Journal of High Energy Physics en_US
dc.publication.originofpublisher Foreign en_US


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