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Please use this identifier to cite or link to this item: http://acervodigital.unesp.br/handle/11449/111349
Title: 
Measurements of the t(t)Overbar charge asymmetry using the dilepton decay channel in pp collisions at root s=7 TeV
Author(s): 
Institution: 
  • Yerevan Phys Inst
  • Inst Hochenergiephys OeAW
  • Natl Ctr Particle & High Energy Phys
  • Univ Antwerp
  • Vrije Univ Brussel
  • Univ Libre Brussels
  • Univ Ghent
  • Catholic Univ Louvain
  • Univ Mons
  • Centro Brasileiro de Pesquisas Físicas (CBPF)
  • Universidade do Estado do Rio de Janeiro (UERJ)
  • Universidade Estadual Paulista (UNESP)
  • Universidade Federal do ABC (UFABC)
  • Bulgarian Acad Sci
  • Univ Sofia
  • Inst High Energy Phys
  • Peking Univ
  • Universidad de los Andes
  • Tech Univ Split
  • Univ Split
  • Rudjer Boskovic Inst
  • Univ Cyprus
  • Charles Univ Prague
  • Acad Sci Res & Technol Arab Republ Egypt
  • NICPB
  • Univ Helsinki
  • Helsinki Inst Phys
  • Lappeenranta Univ Technol
  • CEA Saclay
  • Ecole Polytech
  • Univ Haute Alsace Mulhouse
  • CNRS IN2P3
  • Univ Lyon 1
  • Tbilisi State Univ
  • RWTH Aachen University
  • DESY
  • Univ Hamburg
  • Univ Karlsruhe
  • NCSR Demokritos
  • Univ Athens
  • Univ Ioannina
  • Wigner Res Ctr Phys
  • Inst Nucl Res ATOMKI
  • Debrecen Univ Med
  • Natl Inst Sci Educ & Res
  • Panjab Univ
  • University of Delhi
  • Saha Inst Nucl Phys
  • Bhabha Atom Res Ctr
  • Tata Inst Fundamental Res EHEP
  • Tata Inst Fundamental Res HECR
  • Inst Res Fundamental Sci IPM
  • Univ Coll Dublin
  • INFN Sez Bari
  • Univ Bari
  • Politecn Bari
  • INFN Sez Bologna
  • Univ Bologna
  • INFN Sez Catania
  • Univ Catania
  • CSFNSM
  • INFN Sez Firenze
  • Univ Florence
  • INFN Lab Nazl Frascati
  • INFN Sez Genova
  • Univ Genoa
  • INFN Sez Milano Bicocca
  • Univ Milano Bicocca
  • INFN Sez Napoli
  • Univ Naples Federico II
  • Univ Basilicata Potenza
  • Univ G Marconi Roma
  • INFN Sez Padova
  • Univ Padua
  • Univ Trento Trento
  • INFN Sez Pavia
  • Univ Pavia
  • INFN Sez Perugia
  • Univ Perugia
  • INFN Sez Pisa
  • Univ Pisa
  • Scuola Normale Super Pisa
  • INFN Sez Roma
  • Univ Rome
  • INFN Sez Torino
  • Univ Turin
  • Univ Piemonte Orientale Novara
  • INFN Sez Trieste
  • Univ Trieste
  • Kangwon Natl Univ
  • Kyungpook Natl Univ
  • Chonnam Natl Univ
  • Korea University
  • Univ Seoul
  • Sungkyunkwan Univ
  • Vilnius Univ
  • Univ Malaya
  • Ctr Invest & Estudios Avanzados IPN
  • Univ Iberoamer
  • Benemerita Univ Autonoma Puebla
  • Univ Autnoma San Luis Potosi
  • Univ Auckland
  • Univ Canterbury
  • Quaid I Azam Univ
  • Natl Ctr Nucl Res
  • Univ Warsaw
  • Lab Instrumentacao & Fis Expt Particulas
  • Joint Inst Nucl Res
  • Petersburg Nucl Phys Inst
  • Russian Acad Sci
  • Institute for Theoretical and Experimental Physics (ITEP)
  • PN Lebedev Phys Inst
  • Moscow MV Lomonosov State Univ
  • University of Belgrade
  • Ctr Invest Energet Medioambientales & Technol CIE
  • Univ Autonoma Madrid
  • Univ Oviedo
  • CSIC Univ Cantabria
  • CERN
  • Paul Scherrer Inst
  • Swiss Fed Inst Technol
  • Univ Zurich
  • Natl Cent Univ
  • NTU
  • Chulalongkorn Univ
  • Cukurova Univ
  • Middle E Tech Univ
  • Bogazici Univ
  • Istanbul Tech Univ
  • Kharkov Inst Phys & Technol
  • Univ Bristol
  • Rutherford Appleton Lab
  • Univ London Imperial Coll Sci Technol & Med
  • Brunel Univ
  • Baylor Univ
  • Univ Alabama
  • Boston University
  • Brown University
  • Univ Calif Davis
  • Univ Calif Los Angeles
  • University of California, Riverside (UCR)
  • Univ Calif San Diego
  • Univ Calif Santa Barbara
  • CALTECH
  • Carnegie Mellon Univ
  • Univ Colorado
  • Cornell Univ
  • Fairfield Univ
  • Fermilab Natl Accelerator Lab
  • Univ Florida
  • Florida Int Univ
  • Florida State University
  • Florida Inst Technol
  • UIC
  • Univ Iowa
  • Johns Hopkins Univ
  • University of Kansas (KU)
  • Kansas State University
  • Lawrence Livermore Natl Lab
  • University of Maryland
  • MIT
  • Univ Minnesota
  • University of Mississippi
  • Univ Nebraska
  • SUNY Buffalo
  • Northeastern University
  • Northwestern University (NU)
  • Univ Notre Dame
  • Ohio State Univ
  • Princeton University
  • Univ Puerto Rico
  • Purdue Univ
  • Purdue University Calumet
  • Rice University
  • University of Rochester
  • Rockefeller Univ
  • Rutgers State Univ
  • Univ Tennessee
  • Texas A&M Univ
  • Texas Tech Univ
  • Vanderbilt Univ
  • University of Virginia (UVA)
  • Wayne State Univ
  • Univ Wisconsin
  • Vienna Univ Technol
  • Universidade Estadual de Campinas (UNICAMP)
  • Zewail City Sci & Technol
  • Suez Canal Univ
  • British Univ Egypt
  • Cairo Univ
  • Fayoum Univ
  • Univ Haute Alsace
  • Brandenburg Tech Univ Cottbus
  • Eotvos Lorand Univ
  • Visva Bharati Univ
  • Univ Ruhuna
  • Isfahan Univ Technol
  • Sharif Univ Technol
  • Islamic Azad Univ
  • Univ Siena
  • CNRS
  • Univ Michoacana
  • St Petersburg State Polytech Univ
  • Scuola Normale & Sez INFN
  • Albert Einstein Ctr Fundamental Phys
  • Gaziosmanpasa Univ
  • Adiyaman Univ
  • Cag Univ
  • Mersin Univ
  • Izmir Inst Technol
  • Ozyegin Univ
  • Kafkas Univ
  • Istanbul Univ
  • Mimar Sinan Univ
  • Kahramanmaras Sutcu Imam Univ
  • Univ Southampton
  • Utah Valley Univ
  • Argonne Natl Lab
  • Erzincan Univ
  • Yildiz Tekn Univ
  • Texas A&M Univ Qatar
ISSN: 
1029-8479
Sponsorship: 
  • BMWF
  • FWF
  • FNRS
  • FWO
  • 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)
  • CERN
  • CAS
  • MoST
  • NSFC
  • COLCIENCIAS
  • MSES
  • CSF
  • RPF
  • MoER
  • ERDF
  • Academy of Finland
  • MEC
  • HIP
  • CEA
  • CNRS/ IN2P3
  • BMBF
  • DFG
  • HGF
  • GSRT
  • OTKA and NIH
  • DAE and DST
  • IPM
  • SFI
  • INFN
  • NRF
  • WCU
  • LAS
  • MOE
  • UM
  • CINVESTAV
  • CONACYT
  • CONACYT, SEP
  • UASLP- FAI (Mexico)
  • MBIE
  • PAEC
  • MSHE and NSC
  • FCT
  • JINR
  • MON, RosAtom, RAS and RFBR
  • MESTD
  • SEIDI and CPAN
  • Swiss Funding Agencies
  • NSC
  • ThEPCenter, IPST, STAR and NSTDA (Thailand)
  • TUBITAK and TAEK (Turkey)
  • NASU
  • STFC
  • DOE and NSF (USA)
Sponsorship Process Number: 
MoERSF0690030s09
Abstract: 
The t(t)Overbar charge asymmetry in proton-proton collisions root s = 7TeV is measured using the dilepton decay channel (ee, e mu, or mu mu). The data correspond to a total integrated luminosity of 5.0 fb(-1), collected by the CMS experiment at the LHC. The t(t) Overbar and lepton charge asymmetries, defined as the differences in absolute values of the rapidities between the reconstructed top quarks and antiquarks and of the pseudorapidities between the positive and negative leptons, respectively, are measured to be A(C) = -0.010 +/- 0.017 (stat.) +/- 0.008 (syst.) and A(C)(lep) = 0.009 +/- 0.010 (stat.) +/- 0.006 (syst.). The lepton charge asymmetry is also measured as a function of the invariant mass, rapidity, and transverse momentum of the system. All measurements are consistent with the expectations of the standard model.
Issue Date: 
30-Apr-2014
Citation: 
Journal Of High Energy Physics. New York: Springer, n. 4, 35 p., 2014.
Time Duration: 
35
Publisher: 
Springer
Keywords: 
  • Hardon-Hadron Scattering
  • Top physics
Source: 
http://dx.doi.org/10.1007/JHEP04(2014)191
URI: 
Access Rights: 
Acesso aberto
Type: 
outro
Source:
http://repositorio.unesp.br/handle/11449/111349
Appears in Collections:Artigos, TCCs, Teses e Dissertações da Unesp

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