Measurement of the jet fragmentation function and transverse profile in proton–proton collisions at a center-of-mass energy of 7 TeV with the ATLAS detector
G. AadFakultät für Mathematik und Physik, Albert-Ludwigs-Universität, Freiburg i.Br., GermanyBraden Keim AbbottHomer L. Dodge Department of Physics and Astronomy, University of Oklahoma, Norman, OK, United States of AmericaJ. AbdallahInstitut de Física d’Altes Energies and Departament de Física de la Universitat Autònoma de Barcelona and ICREA, Barcelona, SpainA. A. AbdelalimSection de Physique, Université de Genève, Geneva, SwitzerlandA. AbdesselamDepartment of Physics, Oxford University, Oxford, United KingdomO. AbdinovInstitute of Physics, Azerbaijan Academy of Sciences, Baku, AzerbaijanB. AbiDepartment of Physics and Astronomy, Michigan State University, East Lansing, MI, United States of AmericaM. AbolinsDepartment of Physics and Astronomy, Michigan State University, East Lansing, MI, United States of AmericaH. AbramowiczRaymond and Beverly Sackler School of Physics and Astronomy, Tel Aviv University, Tel Aviv, IsraelH. AbreuLAL, Univ. Paris-Sud and CNRS/IN2P3, Orsay, FranceE. AcerbiINFN Sezione di Milano, Milano, ItalyB. S. AcharyaINFN Gruppo Collegato di Udine, Udine, ItalyD. L. AdamsPhysics Department, Brookhaven National Laboratory, Upton, NY, United States of AmericaT. N. AddyDepartment of Physics, Hampton University, Hampton, VA, United States of AmericaJahred AdelmanDepartment of Physics, Yale University, New Haven, CT, United States of AmericaM. AderholzMax-Planck-Institut für Physik (Werner-Heisenberg-Institut), München, GermanyS. AdomeitFakultät für Physik, Ludwig-Maximilians-Universität München, München, GermanyP. AdragnaDepartment of Physics, Queen Mary University of London, London, United KingdomTim AdyeParticle Physics Department, Rutherford Appleton Laboratory, Didcot, United KingdomS. AefskyDepartment of Physics, Brandeis University, Waltham, MA, United States of AmericaJ. A. Aguilar–SaavedraDepartamento de Fisica Teorica y del Cosmos and CAFPE, Universidad de Granada, Granada, SpainM. AharroucheInstitut für Physik, Universität Mainz, Mainz, GermanyS. AhlenDepartment of Physics, Boston University, Boston, MA, United States of AmericaF. AhlesFakultät für Mathematik und Physik, Albert-Ludwigs-Universität, Freiburg i.Br., GermanyA. AhmadDepartment of Physics and Astronomy, Stony Brook University, Stony Brook, NY, United States of AmericaM. AhsanPhysics Department, University of Texas at Dallas, Richardson, TX, United States of AmericaGiulio AielliINFN Sezione di Roma Tor Vergata, Roma, ItalyT. AkdoğanDepartment of Physics, Bogazici University, Istanbul, TurkeyTorsten AkessonFysiska Institutionen, Lunds Universitet, Lund, SwedenG. AkimotoInternational Center for Elementary Particle Physics and Department of Physics, The University of Tokyo, Tokyo, JapanA. V. AkimovP.N. Lebedev Institute of Physics, Academy of Sciences, Moscow, RussiaA. AkiyamaGraduate School of Science, Kobe University, Kobe, JapanM. S. AlamUniversity at Albany, Albany, NY, United States of AmericaM. A. AlamUniversity at Albany, Albany, NY, United States of AmericaJ. AlbertDepartment of Physics and Astronomy, University of Victoria, Victoria, BC, CanadaS. AlbrandLaboratoire de Physique Subatomique et de Cosmologie, Université Joseph Fourier and CNRS/IN2P3 and Institut National Polytechnique de Grenoble, Grenoble, FranceMartin AleksaCERN, Geneva, SwitzerlandI. N. AleksandrovJoint Institute for Nuclear Research, JINR Dubna, Dubna, RussiaF. AlessandriaINFN Sezione di Milano, Milano, ItalyC. AlexaG. AlexanderRaymond and Beverly Sackler School of Physics and Astronomy, Tel Aviv University, Tel Aviv, IsraelG. AlexandreSection de Physique, Université de Genève, Geneva, SwitzerlandT. AlexopoulosPhysics Department, National Technical University of Athens, Zografou, GreeceMuhammad AlhroobPhysikalisches Institut, University of Bonn, Bonn, GermanyM. AlievDepartment of Physics, Humboldt University, Berlin, GermanyGianluca AlimontiINFN Sezione di Milano, Milano, ItalyJ. AlisonDepartment of Physics, University of Pennsylvania, Philadelphia, PA, United States of AmericaM. AliyevInstitute of Physics, Azerbaijan Academy of Sciences, Baku, AzerbaijanPhilip Patrick AllportOliver Lodge Laboratory, University of Liverpool, Liverpool, United KingdomS. E. Allwood-SpiersSUPA—School of Physics and Astronomy, University of Glasgow, Glasgow, United KingdomJ. AlmondSchool of Physics and Astronomy, University of Manchester, Manchester, United KingdomA. AloisioINFN Sezione di Napoli, Napoli, ItalyR. AlonDepartment of Particle Physics, The Weizmann Institute of Science, Rehovot, IsraelA. AlonsoFysiska Institutionen, Lunds Universitet, Lund, SwedenMariagrazia AlviggiINFN Sezione di Napoli, Napoli, ItalyK. AmakoKEK, High Energy Accelerator Research Organization, Tsukuba, JapanP. AmaralCERN, Geneva, SwitzerlandC. AmelungDepartment of Physics, Brandeis University, Waltham, MA, United States of AmericaV. V. AmmosovState Research Center Institute for High Energy Physics, Protvino, RussiaA. AmorimLaboratorio de Instrumentacao e Fisica Experimental de Particulas—LIP, Lisboa, PortugalE. RosInstituto de Física Corpuscular (IFIC) and Departamento de Física Atómica, Molecular y Nuclear and Departamento de Ingenierá Electrónica and Instituto de Microelectrónica de Barcelona (IMB-CNM), University of Valencia and CSIC, Valencia, SpainN. AmramRaymond and Beverly Sackler School of Physics and Astronomy, Tel Aviv University, Tel Aviv, IsraelChristos AnastopoulosCERN, Geneva, SwitzerlandL. S. AncuAlbert Einstein Center for Fundamental Physics and Laboratory for High Energy Physics, University of Bern, Bern, SwitzerlandN. AndariLAL, Univ. Paris-Sud and CNRS/IN2P3, Orsay, FranceT. AndeenNevis Laboratory, Columbia University, Irvington, NY, United States of AmericaC. F. AndersPhysikalisches Institut, University of Bonn, Bonn, GermanyK. J. AndersonEnrico Fermi Institute, University of Chicago, Chicago, IL, United States of AmericaA. AndreazzaINFN Sezione di Milano, Milano, ItalyV. AndreiKirchhoff-Institut für Physik, Ruprecht-Karls-Universität Heidelberg, Heidelberg, GermanyM-L. AndrieuxLaboratoire de Physique Subatomique et de Cosmologie, Université Joseph Fourier and CNRS/IN2P3 and Institut National Polytechnique de Grenoble, Grenoble, FranceX. S. AnduagaInstituto de Física La Plata, Universidad Nacional de La Plata and CONICET, La Plata, ArgentinaAaron AngeramiNevis Laboratory, Columbia University, Irvington, NY, United States of AmericaF. AnghinolfiCERN, Geneva, SwitzerlandN. AnjosLaboratorio de Instrumentacao e Fisica Experimental de Particulas—LIP, Lisboa, PortugalAlberto AnnoviINFN Laboratori Nazionali di Frascati, Frascati, ItalyA. AntonakiPhysics Department, University of Athens, Athens, GreeceM. AntonelliINFN Laboratori Nazionali di Frascati, Frascati, ItalyА. АнтоновMoscow Engineering and Physics Institute (MEPhI), Moscow, RussiaJ. AntošDepartment of Subnuclear Physics, Institute of Experimental Physics of the Slovak Academy of Sciences, Kosice, Slovak RepublicFabio AnulliINFN Sezione di Roma I, Roma, ItalyS. AounCPPM, Aix-Marseille Université and CNRS/IN2P3, Marseille, FranceL. Aperio BellaLAPP, CNRS/IN2P3 and Université de Savoie, Annecy-le-Vieux, FranceR. ApolleDepartment of Physics, Oxford University, Oxford, United KingdomG. ArabidzeDepartment of Physics and Astronomy, Michigan State University, East Lansing, MI, United States of AmericaI. AracenaSLAC National Accelerator Laboratory, Stanford, CA, United States of AmericaY. AraiKEK, High Energy Accelerator Research Organization, Tsukuba, JapanA. T. H. ArceDepartment of Physics, Duke University, Durham, NC, United States of AmericaJ. P. ArchambaultDepartment of Physics, Carleton University, Ottawa, ON, CanadaS. ArfaouiCERN, Geneva, SwitzerlandJ-F. ArguinPhysics Division, Lawrence Berkeley National Laboratory and University of California, Berkeley, CA, United States of AmericaE. ArıkDepartment of Physics, Bogazici University, Istanbul, TurkeyM. ArikDepartment of Physics, Bogazici University, Istanbul, TurkeyA. J. ArmbrusterDepartment of Physics, The University of Michigan, Ann Arbor, MI, United States of AmericaO. ArnaezInstitut für Physik, Universität Mainz, Mainz, GermanyC. ArnaultLAL, Univ. Paris-Sud and CNRS/IN2P3, Orsay, FranceA. ArtamonovInstitute for Theoretical and Experimental Physics (ITEP), Moscow, RussiaG. ArtoniINFN Sezione di Roma I, Roma, ItalyD. ArutinovPhysikalisches Institut, University of Bonn, Bonn, Germany
2011en
ABI
Abstract
Abstract The jet fragmentation function and transverse profile for jets with 25 GeV< p T jet <500 GeV and | η jet |<1.2 produced in proton–proton collisions with a center-of-mass energy of 7 TeV are presented. The measurement is performed using data with an integrated luminosity of 36 pb −1 . Jets are reconstructed and their momentum measured using calorimetric information. The momenta of the charged particle constituents are measured using the tracking system. The distributions corrected for detector effects are compared with various Monte Carlo event generators and generator tunes. Several of these choices show good agreement with the measured fragmentation function. None of these choices reproduce both the transverse profile and fragmentation function over the full kinematic range of the measurement.
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