Search for Narrow Resonances in Dijet Final States at root s=8 TeV with the Novel CMS Technique of Data Scouting

V. Khachatryan; Petar Adžić; Predrag Ćirković; Damir Devetak; Jovan Milošević; V. Rekovic; Miloš Đorđević; Predrag Milenović; CMS Collaboration; John Chou

doi:10.1103/PhysRevLett.117.031802

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No. of bitstreams: 0 Previous issue date: 2016-07-14 BMWFW (Austria) FWF (Austria) FNRS (Belgium) FWO (Belgium) Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq) Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES) Fundação de Amparo à Pesquisa do Estado do Rio de Janeiro (FAPERJ) Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP) MES (Bulgaria) CERN CAS (China) MoST (China) NSFC (China) COLCIENCIAS (Colombia) MSES (Croatia) CSF (Croatia) RPF (Cyprus) MoER (Estonia) ERC IUT (Estonia) ERDF (Estonia) Academy of Finland (Finland) MEC (Finland) HIP (Finland) CEA (France) CNRS/IN2P3 (France) BMBF (Germany) DFG (Germany) HGF (Germany) GSRT (Greece) OTKA (Hungary) NIH (Hungary) DAE (India) DST (India) IPM (Iran) SFI (Ireland) INFN (Italy) MSIP (Republic of Korea) NRF (Republic of Korea) LAS (Lithuania) MOE (Malaysia) UM (Malaysia) BUAP (Mexico) CINVESTAV (Mexico) CONACYT (Mexico) LNS (Mexico) SEP (Mexico) UASLP-FAI (Mexico) MBIE (New Zealand) PAEC (Pakistan) MSHE (Poland) NSC (Poland) FCT (Portugal) JINR (Dubna) MON (Russia) RosAtom (Russia) RAS (Russia) RFBR (Russia) MESTD (Serbia) SEIDI (Spain) CPAN (Spain) Swiss Funding Agencies (Switzerland) MST (Taipei) ThEPCenter (Thailand) IPST (Thailand) STAR (Thailand) NSTDA (Thailand) TUBITAK (Turkey) TAEK (Turkey) NASU (Ukraine) SFFR (Ukraine) STFC (United Kingdom) DOE (USA) NSF (USA) A search for narrow resonances decaying into dijet final states is performed on data from proton-proton collisions at a center-of-mass energy of 8 TeV, corresponding to an integrated luminosity of 18.8 fb(-1). The data were collected with the CMS detector using a novel technique called data scouting, in which the information associated with these selected events is much reduced, permitting collection of larger data samples. This technique enables CMS to record events containing jets at a rate of 1 kHz, by collecting the data from the high-level-trigger system. In this way, the sensitivity to low-mass resonances is increased significantly, allowing previously inaccessible couplings of new resonances to quarks and gluons to be probed. The resulting dijet mass distribution yields no evidence of narrow resonances. Upper limits are presented on the resonance cross sections as a function of mass, and compared with a variety of models predicting narrow resonances. The limits are translated into upper limits on the coupling of a leptophobic resonance Z'(B) to quarks, improving on the results obtained by previous experiments for the mass range from 500 to 800 GeV. 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Search for Narrow Resonances in Dijet Final States at root s=8 TeV with the Novel CMS Technique of Data Scouting

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