Search for contact interactions in μ+μ- events in pp collisions at √s=7 TeV

Please use this identifier to cite or link to this item: https://ir.lib.ncu.edu.tw/handle/987654321/105930

Title:	Search for contact interactions in μ+μ- events in pp collisions at √s=7 TeV
Authors:	余欣珊;Chatrchyan, Serguei;Brochero Cifuentes, Javier Andrés;Cabrillo Bartolomé, José Iban;Calderón Tazón, Alicia;Chuang, S. H;Duarte Campderros, Jorge;Felcini, Marta;Fernández García, Marcos;Gómez Gramuglio, Gervasio;González Sánchez, Francisco Javier;Graziano, Alberto;Jordá Lope, Clara;López Virto, María Amparo;Marco de Lucas, Jesús;Marco de Lucas, Rafael José;Martínez Rivero, Celso;Matorras Weinig, Francisco;Muñoz Sánchez, Francisca Javiela;Rodrigo Anoro, Teresa;Rodríguez Marrero, Ana Yaiza;Ruiz Jimeno, Alberto;Scodellaro, Luca;Sobrón Sañudo, Mar;Vila Álvarez, Iván;Vilar Cortabitarte, Rocío;Cantabria, Universidad de
Contributors:	理學院物理學系
Date:	2013-02-01
Issue Date:	2026-04-23 13:01:18 (UTC+8)
Publisher:	American Physical Society
Abstract:	摘要： Results are reported from a search for the effects of contact interactions using events with a high-mass, oppositely charged muon pair. The events are collected in proton-proton collisions at √s=7 TeV using the Compact Muon Solenoid detector at the Large Hadron Collider. The data sample corresponds to an integrated luminosity of 5.3 fb-1. The observed dimuon mass spectrum is consistent with that expected from the standard model. The data are interpreted in the context of a quark- and muon-compositeness model with a left-handed isoscalar current and an energy scale parameter ꓥ. The 95% confidence level lower limit on ꓥ is 9.5 TeV under the assumption of destructive interference between the standard model and contact-interaction amplitudes. For constructive interference, the limit is 13.1 TeV. These limits are comparable to the most stringent ones reported to date. We congratulate our colleagues in the CERN accelerator departments for the excellent performance of the LHC and thank the technical and administrative staffs at CERN and at other CMS institutes for their contributions to the success of the CMS effort. In addition, we gratefully acknowledge the computing centers and personnel of the Worldwide LHC Computing Grid for delivering so effectively the computing infrastructure essential to our analyses. Finally, we acknowledge the enduring support for the construction and operation of the LHC and the CMS detector provided by the following funding agencies: BMWF and FWF (Austria); FNRS and FWO (Belgium); CNPq, CAPES, FAPERJ, and FAPESP (Brazil); MEYS (Bulgaria); CERN; CAS, MoST, and NSFC (China); COLCIENCIAS (Colombia); MSES (Croatia); RPF (Cyprus); MoER, SF0690030s09 and ERDF (Estonia); Academy of Finland, MEC, and HIP (Finland); CEA and CNRS/IN2P3 (France); BMBF, DFG, and HGF (Germany); GSRT (Greece); OTKA and NKTH (Hungary); DAE and DST (India); IPM (Iran); SFI (Ireland); INFN (Italy); NRF and WCU (Korea); LAS (Lithuania); CINVESTAV, CONACYT, SEP, and UASLP-FAI (Mexico); MSI (New Zealand); PAEC (Pakistan); MSHE and NSC (Poland); FCT (Portugal); JINR (Armenia, Belarus, Georgia, Ukraine, Uzbekistan); MON, RosAtom, RAS and RFBR (Russia); MSTD (Serbia); SEIDI and CPAN (Spain); Swiss Funding Agencies (Switzerland); NSC (Taipei); ThEP, IPST and NECTEC (Thailand); TUBITAK and TAEK (Turkey); NASU (Ukraine); STFC (United Kingdom); DOE and NSF (USA). Individuals have received support from the Marie-Curie programme and the European Research Council (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 (IWT-Belgium); 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); and the HOMING PLUS programme of Foundation for Polish Science, cofinanced by European Union, Regional Development Fund. 出版者： American Physical Society 出版日期： 2013-02 版權： Attribution 3.0. © 2013 CERN, for the CMS Collaboration http://creativecommons.org/licenses/by/3.0/es/ openAccess 識別號： ISSN: 1550-7998 識別號： ISSN: 2470-0029 識別號： ISSN: 2470-0010 識別號： ISSN: 1550-2368 識別號： DOI: 10.1103/PhysRevD.87.032001
Appears in Collections:	[Department of Physics] journal & Dissertation

Files in This Item:

File	Description	Size	Format
index.html		0Kb	HTML	17	View/Open

社群 sharing

Loading...