Search for top-squark pairs decaying into Higgs or Z bosons in pp collisions at root s=8 TeV
dc.contributor.author | Chatrchyan, S. | |
dc.contributor.author | Işıldak, Bora | |
dc.date.accessioned | 2014-11-25T14:54:20Z | |
dc.date.available | 2014-11-25T14:54:20Z | |
dc.date.issued | 2014-09-07 | |
dc.identifier.issn | 0370-2693 | |
dc.identifier.uri | http://www.sciencedirect.com/science/article/pii/S0370269314005553 | |
dc.identifier.uri | http://hdl.handle.net/10679/682 | |
dc.description.abstract | A search for supersymmetry through the direct pair production of top squarks, with Higgs (H) or Z bosons in the decay chain, is performed using a data sample of proton-proton collisions at root s = 8 TeVcollected in 2012 with the CMS detector at the LHC. The sample corresponds to an integrated luminosity of 19.5 fb(-1). The search is performed using a selection of events containing leptons and bottom-quark jets. No evidence for a significant excess of events over the standard model background prediction is observed. The results are interpreted in the context of simplified supersymmetric models with pair production of a heavier top-squark mass eigenstate (t) over tilde (2) decaying to a lighter top-squark mass eigenstate (t) over tilde (1) via either (t) over tilde (2) -> H (t) over tilde (1) or (t) over tilde (2) -> Z (t) over tilde (1), followed in both cases by (t) over tilde (1) -> t (chi) over tilde (0)(1), where (chi) over tilde (0)(1) is an undetected, stable, lightest supersymmetric particle. The interpretation is performed in the region where the mass difference between the (t) over tilde (1) and (chi) over tilde (0)(1) states is approximately equal to the top-quark mass (m((t) over tilde )1) - m((chi) over tilde 10) similar or equal to m(t)) which is not probed by searches for direct (t) over tilde (1) squark pair production. The analysis excludes top squarks with masses m((t) over tilde2) < 575 GeVand m(<(t)over tilde>1) < 400 GeVat a 95% confidence level. | en_US |
dc.description.sponsorship | BMWF ; FWF ; FNRS ; FWO ; CNPq ; CAPES ; FAPERJ ; FAPESP ; MEYS ; CERN ; CAS ; MoST ; NSFC ; COLCIENCIAS ; MSES ; RPF ; MoER ; SF0690030s09 ; ERDF ; Academy of Finland ; MEC ; HIP ; CEA ; CNRS/IN2P3 ; BMBF ; DFG ; HGF ; GSRT ; OTKA ; NKTH ; DAE ; DST ; IPM ; SFI ; INFN ; NRF ; WCU ; LAS ; CINVESTAV ; CONACYT ; SEP ; UASLP-FAI ; MSI ; PAEC ; MSHE ; NSC ; FCT ; JINR ; MON ; RosAtom ; RAS ; RFBR ; MSTD ; SEIDI ; CPAN ; Swiss Funding Agencies ; NSC ; ThEPCenter ; IPST ; NSTDA ; TUBITAK ; TAEK ; NASU ; STFC ; University of California Institute for Mexico and the United States ; the Marie-Curie programme and the European Research Council and EPLANET ; DOE and NSF ; the Leventis Foundation ; the A. P. Sloan Foundation ; the Alexander von Humboldt Foundation ; the Belgian Federal Science Policy Office ; the Fonds pour la Formation à la Recherche dans l’Industrie et dans l’Agriculture ; the Agentschap voor Innovatie door Wetenschap en Technologie ; the Ministry of Education, Youth and Sports of Czech Republic ; the Agence Nationale de la Recherche ANR-12-JS05-002-01 ; the Council of Science and Industrial Research, India; the Compagnia di San Paolo ; the HOMING PLUS programme of Foundation for Polish Science, cofinanced by EU ; Regional Development Fund ; the Thalis and Aristeia programmes cofinanced by EU-ESF and the Greek NSRF. | |
dc.language.iso | eng | en_US |
dc.publisher | Elsevier | en_US |
dc.relation | info:turkey/grantAgreement/TUBITAK | en_US |
dc.relation.ispartof | Physics Letters B | |
dc.rights | openAccess | |
dc.title | Search for top-squark pairs decaying into Higgs or Z bosons in pp collisions at root s=8 TeV | en_US |
dc.type | Article | en_US |
dc.description.version | publisher version | |
dc.peerreviewed | yes | en_US |
dc.publicationstatus | published | en_US |
dc.contributor.department | Özyeğin University | |
dc.contributor.authorID | (ORCID 0000-0002-0283-5234 & YÖK ID 124605) Işıldak, Bora | |
dc.contributor.ozuauthor | Işıldak, Bora | |
dc.creator | The CMS Collaboration | |
dc.identifier.volume | 736 | |
dc.identifier.startpage | 371 | |
dc.identifier.endpage | 397 | |
dc.identifier.wos | WOS:000341487800057 | |
dc.identifier.doi | 10.1016/j.physletb.2014.07.053 | |
dc.subject.keywords | CMS | en_US |
dc.subject.keywords | SUSY | en_US |
dc.subject.keywords | Stop | en_US |
dc.subject.keywords | Higgs | en_US |
dc.identifier.scopus | SCOPUS:2-s2.0-84907327700 | |
dc.contributor.authorMale | 1 |
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