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Please use this identifier to cite or link to this item: http://acervodigital.unesp.br/handle/11449/111318
Title: 
Study of the underlying event at forward rapidity in pp collisions at root s=0.9, 2.76, and 7 TeV
Author(s): 
Institution: 
  • Yerevan Phys Inst
  • 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
  • Egyptian Network High Energy Phys
  • NICPB
  • Univ Helsinki
  • Helsinki Inst Phys
  • Lappeenranta Univ Technol
  • CEA Saclay
  • Ecole Polytech
  • Univ Haute Alsace Mulhouse
  • Univ Lyon 1
  • Tbilisi State Univ
  • RWTH Aachen University
  • DESY
  • Univ Hamburg
  • Univ Karlsruhe
  • Inst Nucl Phys Demokritos
  • Univ Athens
  • Univ Ioannina
  • KFKI Res Inst Particle & Nucl Phys
  • Inst Nucl Res ATOMKI
  • Debrecen Univ Med
  • Panjab Univ
  • University of Delhi
  • Saha Inst Nucl Phys
  • Bhabha Atom Res Ctr
  • Tata Inst Fundamental Res
  • 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
  • Ist Nazl Fis Nucl
  • 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
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  • 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 State Univ
  • IPN
  • Univ Iberoamer
  • Benemerita Univ Autonoma Puebla
  • Univ Autonoma 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
  • State Res Ctr Russian Federat
  • University of Belgrade
  • CIEMAT
  • Univ Autonoma Madrid
  • Univ Oviedo
  • Univ Cantabria
  • CERN
  • Paul Scherrer Inst
  • Swiss Fed Inst Technol
  • Univ Zurich
  • Natl Cent Univ
  • Natl Taiwan Univ
  • 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
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  • Carnegie Mellon Univ
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  • Fermilab Natl Accelerator Lab
  • Univ Florida
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  • Florida Inst Technol
  • Univ Illinois
  • Univ Iowa
  • Johns Hopkins Univ
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  • Kansas State University
  • Lawrence Livermore Natl Lab
  • University of Maryland
  • MIT
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  • Northeastern University
  • Northwestern University (NU)
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  • Universidade Estadual de Campinas (UNICAMP)
  • Suez Canal Univ
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  • British Univ Egypt
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  • Univ Haute Alsace
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  • Eotvos Lorand Univ
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  • Sharif Univ Technol
  • Isfahan Univ Technol
  • Shiraz Univ
  • Islamic Azad Univ
  • Univ Siena
  • Univ Bucharest
  • Sezione Ist Nazl Fis Nucl
  • Albert Einstein Ctr Fundamental Phys
  • Gaziosmanpasa Univ
  • Adiyaman Univ
  • Izmir Inst Technol
  • Mersin Univ
  • Ozyegin Univ
  • Kafkas Univ
  • Suleyman Demirel Univ
  • Ege Univ
  • Mimar Sinan Univ
  • Kahramanmaras Sutcu Imam Univ
  • Univ Southampton
  • Utah Valley Univ
  • Vinca Inst Nucl Sci
  • Argonne Natl Lab
  • Erzincan Univ
ISSN: 
1029-8479
Sponsorship: 
  • BMWF (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)
  • MEYS (Bulgaria)
  • CERN
  • CAS (China)
  • MoST (China)
  • NSFC (China)
  • COLCIENCIAS (Colombia)
  • MSES (Croatia)
  • RPF (Cyprus)
  • MoER (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)
  • NKTH (Hungary)
  • DAE (India)
  • DST (India)
  • IPM (Iran)
  • SFI (Ireland)
  • INFN (Italy)
  • NRF (Republic of Korea)
  • WCU (Republic of Korea)
  • LAS (Lithuania)
  • CINVESTAV (Mexico)
  • CONACYT (Mexico)
  • SEP (Mexico)
  • UASLP-FAI (Mexico)
  • MST (New Zealand)
  • PAEC (Pakistan)
  • MSHE (Poland)
  • NSC (Poland)
  • FCT (Portugal)
  • JINR (Armenia)
  • JINR (Belarus)
  • JINR (Georgia)
  • JINR (Ukraine)
  • JINR (Uzbekistan)
  • MON (Russia)
  • RosAtom (Russia)
  • RAS (Russia)
  • RFBR (Russia)
  • MSTD (Serbia)
  • SEIDI (Spain)
  • CPAN (Spain)
  • Swiss Funding Agencies (Switzerland)
  • NSC (Taipei)
  • ThEPCenter (Thailand)
  • IPST (Thailand)
  • NSTDA (Thailand)
  • TUBITAK (Turkey)
  • TAEK (Turkey)
  • NASU (Ukraine)
  • STFC (United Kingdom)
  • DOE (USA)
  • NSF (USA)
  • A.G. Leventis Foundation
  • Helmholtz Association
  • Russian Foundation for Basic Research
  • Russian Federation
  • Russian Ministry of Education and Science
  • Belgian Federal Science Policy Office
Sponsorship Process Number: 
  • Russian FederationN1456.2008.2
  • Russian FederationN4142.2010.2
  • Russian FederationN3920.2012.2
  • SF0690030s09
Abstract: 
The underlying event activity in proton-proton collisions at forward pseudorapidity (-6.6 < eta < -5.2) is studied with the CMS detector at the LHC, using a novel observable: the ratio of the forward energy density, dE/d(eta), for events with a charged-particle jet produced at central pseudorapidity (vertical bar eta(jet)vertical bar < 2) to the forward energy density for inclusive events. This forward energy density ratio is measured as a function of the central jet transverse momentum, p(T), at three different pp centre-of-mass energies (root s = 0.9, 2.76, and 7 TeV). In addition, the root s evolution of the forward energy density is studied in inclusive events and in events with a central jet. The results are compared to those of Monte Carlo event generators for pp collisions and are discussed in terms of the underlying event. Whereas the dependence of the forward energy density ratio on jet p(T), at each root s separately can be well reproduced by some models, all models fail to simultaneously describe the increase of the forward energy density with root s in both inclusive events and in events with a central jet.
Issue Date: 
1-Apr-2013
Citation: 
Journal Of High Energy Physics. New York: Springer, n. 4, 36 p., 2013.
Time Duration: 
36
Publisher: 
Springer
Keywords: 
Hadron-Hadron Scattering
Source: 
http://dx.doi.org/10.1007/JHEP04(2013)072
URI: 
Access Rights: 
Acesso aberto
Type: 
outro
Source:
http://repositorio.unesp.br/handle/11449/111318
Appears in Collections:Artigos, TCCs, Teses e Dissertações da Unesp

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