Search for decays of stopped long-lived particles produced in proton-proton collisions at root s=8TeV
dc.contributor.author | Khachatryan, V. | |
dc.contributor.author | Işıldak, Bora | |
dc.date.accessioned | 2016-08-04T08:47:48Z | |
dc.date.available | 2016-08-04T08:47:48Z | |
dc.date.issued | 2015-04 | |
dc.identifier.issn | 1434-6052 | |
dc.identifier.uri | http://hdl.handle.net/10679/4399 | |
dc.identifier.uri | http://link.springer.com/article/10.1140/epjc/s10052-015-3367-z | |
dc.description.abstract | A search has been performed for long-lived particles that could have come to rest within the CMS detector, using the time intervals between LHC beam crossings. The existence of such particles could be deduced from observation of their decays via energy deposits in the CMS calorimeter appearing at times that are well separated from any proton–proton collisions. Using a data set corresponding to an integrated luminosity of 18.6 fb-1fb-1 of 8 TeVTeV proton–proton collisions, and a search interval corresponding to 281 h of trigger livetime, 10 events are observed, with a background prediction of 13.2+3.6−2.513.2−2.5+3.6 events. Limits are presented at 95 % confidence level on gluino and top squark production, for over 13 orders of magnitude in the mean proper lifetime of the stopped particle. Assuming a cloud model of R-hadron interactions, a gluino with mass ≲≲ 1000 GeVGeV and a top squark with mass ≲≲ 525 GeVGeV are excluded, for lifetimes between 1 μμ s and 1000 ss . These results are the most stringent constraints on stopped particles to date. | |
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 Compagnia di San Paolo (Torino); and the Thalis and Aristeia programs cofinanced by EU-ESF and the Greek NSRF ; and the National Priorities Research Program by Qatar National Research Fund. | |
dc.language.iso | eng | en_US |
dc.publisher | Springer Nature | |
dc.relation | info:turkey/grantAgreement/TUBITAK | |
dc.relation.ispartof | European Physical Journal C | |
dc.rights | restrictedAccess | |
dc.title | Search for decays of stopped long-lived particles produced in proton-proton collisions at root s=8TeV | en_US |
dc.type | Article | en_US |
dc.peerreviewed | yes | |
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 | 75 | |
dc.identifier.issue | 4 | |
dc.identifier.wos | WOS:000355670100001 | |
dc.identifier.doi | 10.1140/epjc/s10052-015-3367-z | |
dc.contributor.authorMale | 1 |
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