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순수물리이론 연구단
순수물리이론 연구단
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Discovering heavy new physics in boosted Z channels: Z -> l(+)l(-) vs Z ->nu(nu)over-tilde

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dc.contributor.authorBackovic, Mko
dc.contributor.authorFlacke, Tko
dc.contributor.authorJeong Han Kimko
dc.contributor.authorLee, SJko
dc.date.available2016-01-07T09:12:21Z-
dc.date.created2015-09-08ko
dc.date.issued201507ko
dc.identifier.issn1550-7998ko
dc.identifier.urihttp://pr.ibs.re.kr/handle/8788114/1962ko
dc.description.abstractWe propose a strategy for new physics searches in channels which contain a boosted Z boson and a boosted massive jet in the final state. Our proposal exploits the previously overlooked advantages of boosted Z -> nu(nu) over bar topologies, where collimated neutrinos result in signals with large missing energy. We illustrate the advantage of this channel in a case study of singly produced TeV scale charge 2/3 fermionic top partners (T') which decay to tZ final states. A comparison with the di-leptonic channel reveals that, despite the large t(t)over bar> background, signals with missing energy combined with jet substructure techniques offer superior probes of new physics at TeV scales. The effect can be attributed to a factor of similar to 3 enhancement in the signal cross section, coming from the branching ratio of Z -> nu(nu) over bar We exploit the unique event topology of singly produced top partners to suppress the t(t)over bar> background, as well as further improve on the existing proposals to detect T' in the boosted di-lepton channel. Our conclusions on advantages of Z -> nu(nu) over bar can be extended to most resonance searches which utilize a boosted Z boson in the final stateko
dc.languageENGko
dc.publisherAMER PHYSICAL SOCko
dc.titleDiscovering heavy new physics in boosted Z channels: Z -> l(+)l(-) vs Z ->nu(nu)over-tildeko
dc.typeARTICLEko
dc.type.rimsAko
dc.identifier.wosid000358604700001ko
dc.identifier.scopusid2-s2.0-84939125298ko
dc.identifier.pid466null
dc.description.wostc10-
dc.date.scptcdate2018-10-01-
dc.identifier.doi10.1103/PhysRevD.92.011701ko
dc.identifier.bibliographicCitationPHYSICAL REVIEW D, v.92, no.1, pp.011701 -ko
dc.date.tcdate2018-10-01-
dc.description.scptc9-
dc.type.docTypeArticle-
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Center for Fundamental Theory(순수물리이론 연구단) > Journal Papers (저널논문)
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