Search for new physics with long-lived particles decaying to photons and missing energy in pp collisions at ?s=7 TeV

Basit Öğe Kaydı
dc.contributor.authorCMS Collaboration
dc.contributor.authorCiftci
dc.contributor.authorR.
dc.date.accessioned2019-10-27T08:00:33Z
dc.date.available2019-10-27T08:00:33Z
dc.date.issued2012
dc.departmentEge Üniversitesien_US
dc.description.abstractA search is performed for long-lived neutral particles decaying into a photon and invisible particles. An example of such a signature is the decay of the lightest neutralino with nonzero lifetime into a gravitino and a photon in gauge-mediated supersymmetry, with the neutralino as the next-to-lightest supersymmetric particle and the gravitino as the lightest. The search uses events containing photons, missing transverse energy, and jets. The impact parameter of the photon relative to the beam-beam collision point can be reconstructed using converted photons. The method is sensitive to lifetimes of the order of 0.1 to 1 ns. The data sample corresponds to an integrated luminosity of 2.23 fb-1 in pp collisions at ?s=7 TeV, recorded in the first part of 2011 by the CMS experiment at the LHC. Cross-section limits are presented on pair production for such particles, each of which decays into a photon and invisible particles. The observed 95% confidence level limits vary between 0.11 and 0.21 pb, depending on the neutral particle lifetime.[Figure not available: see fulltext.] © 2012 CERN for the benefit of the CMS collaboration.en_US
dc.description.sponsorshipScience and Technology Facilities Council, STFC: CMS Science and Technology Facilities Council, STFC: GRIDPP Science and Technology Facilities Council, STFC: PP/D004284/1 Science and Technology Facilities Council, STFC: PP/E002722/1 Science and Technology Facilities Council, STFC: ST/F006748/1 Science and Technology Facilities Council, STFC: ST/F007094/1 Science and Technology Facilities Council, STFC: ST/F007434/1 Science and Technology Facilities Council, STFC: ST/G502347/1 Science and Technology Facilities Council, STFC: ST/G502412/1 Science and Technology Facilities Council, STFC: ST/H000925/1 Science and Technology Facilities Council, STFC: ST/I000410/1 Science and Technology Facilities Council, STFC: ST/I002200/1 Science and Technology Facilities Council, STFC: ST/I002839/1 Science and Technology Facilities Council, STFC: ST/I005912/1 Science and Technology Facilities Council, STFC: ST/I505572/1 Science and Technology Facilities Council, STFC: ST/I505580/1 Science and Technology Facilities Council, STFC: ST/J004820/1 Science and Technology Facilities Council, STFC: ST/J004901/1 Science and Technology Facilities Council, STFC: ST/J005614/1 Science and Technology Facilities Council, STFC: ST/J005665/1 Science and Technology Facilities Council, STFC: ST/K000616/1 Science and Technology Facilities Council, STFC: ST/K001256/1 Science and Technology Facilities Council, STFC: ST/K001604/1 Science and Technology Facilities Council, STFC: ST/L001225/1en_US
dc.identifier.doi10.1007/JHEP11(2012)172
dc.identifier.issn1126-6708
dc.identifier.issn1126-6708en_US
dc.identifier.issue11en_US
dc.identifier.scopusqualityN/Aen_US
dc.identifier.urihttps://doi.org/10.1007/JHEP11(2012)172
dc.identifier.urihttps://hdl.handle.net/11454/24764
dc.identifier.volume2012en_US
dc.indekslendigikaynakScopusen_US
dc.language.isoenen_US
dc.relation.ispartofJournal of High Energy Physicsen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/openAccessen_US
dc.subjectHadron-Hadron Scatteringen_US
dc.titleSearch for new physics with long-lived particles decaying to photons and missing energy in pp collisions at ?s=7 TeVen_US
dc.typeArticleen_US

Dosyalar

Koleksiyon

Scopus İndeksli Yayınlar Koleksiyonu