Navegar

Colección

Datos Estadísticas

Artículo

Estamos trabajando para incorporar este artículo al repositorio
Consulte el artículo en la página del editor
Consulte la política de Acceso Abierto del editor

Abstract:

Distributions sensitive to the underlying event are studied in events containing one or more charged-particle jets produced in pp collisions at √s=7TeV with the ATLAS detector at the Large Hadron Collider (LHC). These measurements reflect 800μb - 1 of data taken during 2010. Jets are reconstructed using the anti-k t algorithm with radius parameter R varying between 0.2 and 1.0. Distributions of the charged-particle multiplicity, the scalar sum of the transverse momentum of charged particles, and the average charged-particle p T are measured as functions of pTjet in regions transverse to and opposite the leading jet for 4GeV<pTjet<100GeV. In addition, the R dependence of the mean values of these observables is studied. In the transverse region, both the multiplicity and the scalar sum of the transverse momentum at fixed pTjet vary significantly with R, while the average charged-particle transverse momentum has a minimal dependence on R. Predictions from several Monte Carlo tunes have been compared to the data; the predictions from Pythia 6, based on tunes that have been determined using LHC data, show reasonable agreement with the data, including the dependence on R. Comparisons with other generators indicate that additional tuning of soft-QCD parameters is necessary for these generators. The measurements presented here provide a testing ground for further development of the Monte Carlo models. © 2012 CERN.

Registro:

Documento: Artículo
Título:Underlying event characteristics and their dependence on jet size of charged-particle jet events in pp collisions at √(s)=7TeV with the ATLAS detector
Autor:Aad, G. et al.
Este artículo contiene 2875 autores, consultelos en el artículo en formato pdf.
Filiación: Este artículo contiene 2875 autores con sus filiaciones, consultelas en el artículo en formato pdf.
Año:2012
Volumen:86
Número:7
DOI: http://dx.doi.org/10.1103/PhysRevD.86.072004
Título revista:Physical Review D - Particles, Fields, Gravitation and Cosmology
Título revista abreviado:Phys Rev D Part Fields Gravit Cosmol
ISSN:15507998
CODEN:PRVDA
Registro:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_15507998_v86_n7_p_Aad

Referencias:

  • Gross, D.J., Wilczek, F., (1973) Phys. Rev. Lett., 30, p. 1343. , PRLTAO 0031-9007 10.1103/PhysRevLett.30.1343
  • Politzer, H.D., (1973) Phys. Rev. Lett., 30, p. 1346. , PRLTAO 0031-9007 10.1103/PhysRevLett.30.1346
  • Ellis, R.K., Stirling, W.J., Webber, B.R., (1996) QCD and Collider Physics, , Cambridge University Press, Cambridge, England
  • (2004) Phys. Rev. D, 70, p. 072002. , CDF Collaboration, PRVDAQ 1550-7998 10.1103/PhysRevD.70.072002
  • (2010) Phys. Rev. D, 82, p. 034001. , CDF Collaboration, PRVDAQ 1550-7998 10.1103/PhysRevD.82.034001
  • (2010) Eur. Phys. J. C, 70, p. 555. , CMS Collaboration, EPCFFB 1434-6044 10.1140/epjc/s10052-010-1453-9
  • Chatrchyan, S., J. High Energy Phys., 2011 (9), p. 109. , (CMS Collaboration), JHEPFG 1029-8479 10.1007/JHEP09(2011)109
  • (2011) Phys. Rev. D, 83, p. 112001. , ATLAS Collaboration, PRVDAQ 1550-7998 10.1103/PhysRevD.83.112001
  • Abelev, B., J. High Energy Phys., 2012 (7), p. 116. , (ALICE Collaboration), JHEPFG 1029-8479 10.1007/JHEP07(2012)116
  • (2011) Eur. Phys. J. C, 71, p. 1636. , ATLAS Collaboration, EPCFFB 1434-6044 10.1140/epjc/s10052-011-1636-z
  • Cacciari, M., Salam, G.P., Soyez, G., J. High Energy Phys., 2008 (4), p. 063. , JHEPFG 1029-8479 10.1088/1126-6708/2008/04/063
  • (2008) JINST, 3, p. 08003. , ATLAS Collaboration, JIONAS 1748-0221 10.1088/1748-0221/3/08/S08003
  • ATLAS Collaboration, Report No. ATLAS-CONF-2010-068, , http://cdsweb.cern.ch/record/1281343
  • (2011) Phys. Rev. D, 84, p. 054001. , ATLAS Collaboration, PRVDAQ 1550-7998 10.1103/PhysRevD.84.054001
  • Sjöstrand, T., Mrenna, S., Skands, P.Z., J. High Energy Phys., 2006 (5), p. 026. , JHEPFG 1029-8479 10.1088/1126-6708/2006/05/026
  • Sherstnev, A., Thorne, R., (2008) Eur. Phys. J. C, 55, p. 553. , EPCFFB 1434-6044 10.1140/epjc/s10052-008-0610-x
  • (2011) New J. Phys., 13, p. 053033. , ATLAS Collaboration, NJOPFM 1367-2630 10.1088/1367-2630/13/5/053033
  • (2010) Eur. Phys. J. C, 70, p. 823. , ATLAS Collaboration, EPCFFB 1434-6044 10.1140/epjc/s10052-010-1429-9
  • Agostinelli, S., (2003) Nucl. Instrum. Methods Phys. Res., Sect. A, 506, p. 250. , (GEANT4 Collaboration), NIMAER 0168-9002 10.1016/S0168-9002(03)01368-8
  • Pumplin, J., Stump, D.R., Huston, J., Lai, H.-L., Nadolsky, P., Tung, W.-K., J. High Energy Phys., 2002 (7), p. 012. , JHEPFG 1029-8479 10.1088/1126-6708/2002/07/012
  • ATLAS Collaboration, Report No. ATL-PHYS-PUB-2010-002, , http://cdsweb.cern.ch/record/1247375
  • Sjöstrand, T., Mrenna, S., Skands, P.Z., (2008) Comput. Phys. Commun., 178, p. 852. , CPHCBZ 0010-4655 10.1016/j.cpc.2008.01.036
  • ATLAS Collaboration, Report No. ATL-PHYS-PUB-2011-014, , http://cdsweb.cern.ch/record/1400677
  • Rick Field arXiv:1010.3558; Gieseke, S., arXiv:1102.1672; ATLAS Collaboration, Report No. ATLAS-CONF-2011-009, , http://cdsweb.cern.ch/record/1363300
  • Skands, P.Z., (2010) Phys. Rev. D, 82, p. 074018. , PRVDAQ 1550-7998 10.1103/PhysRevD.82.074018
  • Corke, R., Sjöstrand, T., J. High Energy Phys., 2011 (3), p. 032. , JHEPFG 1029-8479 10.1007/JHEP03(2011)032
  • Pumplin, J., Belyaev, A., Huston, J., Stump, D., Tung, W.-K., J. High Energy Phys., 2006 (2), p. 032. , JHEPFG 1029-8479 10.1088/1126-6708/2006/02/032
  • (2010) ATLAS Collaboration, Report No. ATLAS-CONF-2010-069, , http://cdsweb.cern.ch/record/1281344
  • D'Agostini, G., (1995) Nucl. Instrum. Methods Phys. Res., Sect. A, 362, p. 487. , NIMAER 0168-9002 10.1016/0168-9002(95)00274-X
  • Adye, T., (2007), http://hepunx.rl.ac.uk/~adye/software/unfold/RooUnfold.html; (2011) New J. Phys., 13, p. 053033. , ATLAS Collaboration, NJOPFM 1367-2630 10.1088/1367-2630/13/5/053033
  • ATLAS Collaboration, Report No. ATLAS-COM-CONF-2011-046, , http://cdsweb.cern.ch/record/1338575
  • Efron, B., (1979) Ann. Stat., 7, p. 1. , ASTSC7 0090-5364 10.1214/aos/1176344552

Citas:

---------- APA ----------
(2012) . Underlying event characteristics and their dependence on jet size of charged-particle jet events in pp collisions at √(s)=7TeV with the ATLAS detector. Physical Review D - Particles, Fields, Gravitation and Cosmology, 86(7).
http://dx.doi.org/10.1103/PhysRevD.86.072004
---------- CHICAGO ----------
Aad, G. "Underlying event characteristics and their dependence on jet size of charged-particle jet events in pp collisions at √(s)=7TeV with the ATLAS detector" . Physical Review D - Particles, Fields, Gravitation and Cosmology 86, no. 7 (2012).
http://dx.doi.org/10.1103/PhysRevD.86.072004
---------- MLA ----------
Aad, G. "Underlying event characteristics and their dependence on jet size of charged-particle jet events in pp collisions at √(s)=7TeV with the ATLAS detector" . Physical Review D - Particles, Fields, Gravitation and Cosmology, vol. 86, no. 7, 2012.
http://dx.doi.org/10.1103/PhysRevD.86.072004
---------- VANCOUVER ----------
Aad, G. Underlying event characteristics and their dependence on jet size of charged-particle jet events in pp collisions at √(s)=7TeV with the ATLAS detector. Phys Rev D Part Fields Gravit Cosmol. 2012;86(7).
http://dx.doi.org/10.1103/PhysRevD.86.072004