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Please use this identifier to cite or link to this item: http://acervodigital.unesp.br/handle/11449/24741
Title: 
Measurement of the production cross section for pairs of isolated photons 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
  • 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)
  • Suez Canal Univ
  • Cairo Univ
  • British Univ
  • Fayoum Univ
  • Ain Shams Univ
  • Univ Haute Alsace
  • Brandenburg Tech Univ Cottbus
  • Eotvos Lorand Univ
  • Univ Cyprus
  • Soltan Inst Nucl Studies
  • Univ Visva Bharati
  • Sharif Univ Technol
  • Isfahan Univ Technol
  • Shiraz Univ
  • Univ Roma
  • Univ Basilicata
  • Lab Nazl Legnaro INFN
  • Univ Siena
  • Scuola Normale & Sez INFN
  • Gaziosmanpasa Univ
  • Lab Instrumentacao & Fis Expt Particulas
  • Charles Univ Prague
  • Adiyaman Univ
  • Mersin Univ
  • Kafkas Univ
  • Suleyman Demirel Univ
  • Ege Univ
  • Univ Southampton
  • Utah Valley Univ
  • Los Alamos Natl Lab
  • Erzincan Univ
  • Joint Inst Nucl Res
  • Egyptian Network High Energy Phys
  • NICPB
  • Univ Helsinki
  • Helsinki Inst Phys
  • Lappeenranta Univ Technol
  • IN2P3 CNRS
  • CEA Saclay
  • Univ Haute Alsace Mulhouse
  • Inst Natl Phys Nucl & Phys Particules IN2P3
  • Petersburg Nucl Phys Inst
  • Univ Claude Bernard Lyon 1
  • Tbilisi State Univ
  • RWTH Aachen University
  • Deutsches Elektronen Synchrotron
  • Univ Hamburg
  • Inst Expt Kernphys
  • Inst Nucl Phys Demokritos
  • Univ Athens
  • Inst Nucl Res
  • Univ Ioannina
  • KFKI Res Inst Particle & Nucl Phys
  • Inst Nucl Res ATOMKI
  • Univ Debrecen
  • Panjab Univ
  • University of Delhi
  • Saha Inst Nucl Phys
  • Bhabha Atom Res Ctr
  • Tata Inst Fundamental Res EHEP
  • Tata Inst Fundamental Res HECR
  • Institute for Theoretical and Experimental Physics (ITEP)
  • Inst Res & Fundamental Sci IPM
  • INFN Sez Bari
  • Univ Bari
  • Politecn Bari
  • INFN Sez Bologna
  • Univ Bologna
  • INFN Sez Catania
  • Univ Catania
  • INFN Sez Firenze
  • Univ Florence
  • Moscow MV Lomonosov State Univ
  • Ist Nazl Fis Nucl
  • INFN Sez Genova
  • INFN Sez Milano Bicocca
  • Univ Milano Bicocca
  • INFN Sez Napoli
  • Univ Napoli Federico II
  • INFN Sez Padova
  • Univ Padua
  • Univ Trent
  • INFN Sez Pavia
  • PN Lebedev Phys Inst
  • Univ Pavia
  • INFN Sez Perugia
  • Univ Perugia
  • INFN Sez Pisa
  • Univ Pisa
  • Scuola Normale Super Pisa
  • INFN Sez Roma
  • Univ Roma La Sapienza
  • INFN Sez Torino
  • Univ Turin
  • Inst High Energy Phys
  • Univ Piemonte Orientale Novara
  • INFN Sez Trieste
  • Univ Trieste
  • Kangwon Natl Univ
  • Kyungpook Natl Univ
  • Chonnam Natl Univ
  • Konkuk Univ
  • Korea University
  • Univ Seoul
  • Sungkyunkwan Univ
  • University of Belgrade
  • Vilnius Univ
  • IPN
  • Univ Iberoamer
  • Benemerita Univ Autonoma Puebla
  • Univ Autonoma San Luis Potosi
  • Univ Auckland
  • Univ Canterbury
  • Quaid I Azam Univ
  • Univ Warsaw
  • Inst Nucl Energy Res
  • Vinca Inst Nucl Sci
  • CIEMAT
  • Univ Autonoma Madrid
  • Univ Oviedo
  • Univ Cantabria
  • European Org Nucl Res
  • Paul Scherrer Inst
  • Swiss Fed Inst Technol
  • Univ Zurich
  • Natl Cent Univ
  • Univ Sofia
  • Natl Taiwan Univ NTU
  • Cukurova Univ
  • Middle E Tech Univ
  • Bogazici Univ
  • Kharkov Inst Phys & Technol
  • Univ Bristol
  • Rutherford Appleton Lab
  • Imperial Coll
  • 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
  • Peking Univ
  • Univ Colorado Boulder
  • Cornell Univ
  • Fairfield Univ
  • Fermilab Natl Accelerator Lab
  • Univ Florida
  • Florida Int Univ
  • Florida State University
  • Florida Inst Technol
  • Univ Illinois Chicago UIC
  • Univ Iowa
  • Universidad de los Andes
  • 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 Lincoln
  • SUNY Buffalo
  • Tech Univ Split
  • Northeastern University
  • Northwestern University (NU)
  • Univ Notre Dame
  • Ohio State Univ
  • Princeton University
  • Univ Puerto Rico
  • Purdue Univ
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  • Rice University
  • University of Rochester
  • Univ Split
  • Rockefeller Univ
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  • Texas A&M Univ
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  • University of Virginia (UVA)
  • Wayne State Univ
  • Univ Wisconsin
  • Inst Rudjer Boskovic
ISSN: 
1126-6708
Sponsorship: 
  • Helmholtz Gemeinschaft
  • Deutsche Forschungsgemeinschaft (DFG)
  • European Commission
Sponsorship Process Number: 
  • Helmholtz Gemeinschaft: VH-HA-101
  • European Commission: PITN-GA-2010-264564
Abstract: 
The integrated and differential cross sections for the production of pairs of isolated photons is measured in proton-proton collisions at a centre-of-mass energy of 7TeV with the CMS detector at the LHC. A data sample corresponding to an integrated luminosity of 36 pb(-1) is analysed. A next-to-leading-order perturbative QCD calculation is compared to the measurements. A discrepancy is observed for regions of the phase space where the two photons have an azimuthal angle difference Delta phi less than or similar to 2.8 rad.
Issue Date: 
1-Jan-2012
Citation: 
Journal of High Energy Physics. New York: Springer, n. 1, p. 145, 2012.
Time Duration: 
145
Publisher: 
Springer
Keywords: 
Hadron-Hadron Scattering
Source: 
http://dx.doi.org/10.1007/JHEP01(2012)133
URI: 
http://hdl.handle.net/11449/24741
Access Rights: 
Acesso aberto
Type: 
outro
Source:
http://repositorio.unesp.br/handle/11449/24741
Appears in Collections:Artigos, TCCs, Teses e Dissertações da Unesp

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