Author
Khachatryan, V., Işıldak, Bora
Publication Date
2016-06
Publication Place
-
Springer Nature
Type
Periodical
Language
English
Digital
Yes
Manuscript
No
Library
Özyeğin University
Library Asset ID
1434-6052
Record ID
ba197985-7e88-4688-933f-a399a2d6d206
Library Location
Natural and Mathematical Sciences
Date
2016-06
Notes
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 ; European Union ; the Leventis Foundation ; the A. P. Sloan Foundation ; the Alexander von Humboldt Foundation ; the Belgian Federal Science Policy Office ; the Fonds pour la Formation a` la Recherche dans l’Industrie et dans l’Agriculture (FRIA-Belgium); the Agentschap voor Innovatie door Wetenschap en Technologie (IWTBelgium); the Ministry of Education, Youth and Sports (MEYS) of Czech Republic; the Council of Science and Industrial Research, India; the Compagnia di San Paolo (Torino); the HOMING PLUS program of Foundation for Polish Science, cofinanced by EU, Regional Development Fund; and the Thalis and Aristeia programs cofinanced by EU-ESF and the Greek NSRF ; Qatar National Research Fund;
the Rachadapisek Sompot Fund for Postdoctoral Fellowship ; Chulalongkorn University ; the Welch Foundation.
Sample Text
A search for narrow resonances decaying to an electron and a muon is presented. The ee μμ mass spectrum is also investigated for non-resonant contributions from the production of quantum black holes (QBHs). The analysis is performed using data corresponding to an integrated luminosity of 19.7 fb-1 fb-1 collected in proton-proton collisions at a centre-of-mass energy of 8 TeV TeV with the CMS detector at the LHC. With no evidence for physics beyond the standard model in the invariant mass spectrum of selected eμeμ pairs, upper limits are set at 95 %% confidence level on the product of cross section and branching fraction for signals arising in theories with charged lepton flavour violation. In the search for narrow resonances, the resonant production of a ττ sneutrino in R-parity violating supersymmetry is considered. The ττ sneutrino is excluded for masses below 1.28 TeV TeV for couplings λ132=λ231=λ′311=0.01λ132=λ231=λ311′=0.01 , and below 2.30 TeV TeV for λ132=λ231=0.07λ132=λ231=0.07 and λ′311=0.11λ311′=0.11 . These are the most stringent limits to date from direct searches at high-energy colliders. In addition, the resonance searches are interpreted in terms of a model with heavy partners of the ZZ boson and the photon. In a framework of TeV-scale quantum gravity based on a renormalization of Newton’s constant, the search for non-resonant contributions to the ee μμ mass spectrum excludes QBH production below a threshold mass MthMth of 1.99 TeV TeV . In models that invoke extra dimensions, the bounds range from 2.36 TeV TeV for one extra dimension to 3.63 TeV TeV for six extra dimensions. This is the first search for QBHs decaying into the ee μμ final state.
DOI
10.1140/epjc/s10052-016-4149-y
