The inclusive J/ψ production cross-section and fraction of J/ψ mesons produced in B-hadron decays are measured in proton–proton collisions at √s = 7 TeV with the ATLAS detector at the LHC, as a function of the transverse momentum and rapidity of the J/ψ, using 2.3 pb^(−1) of integrated luminosity. The cross-section is measured from a minimum pT of 1 GeV to a maximum of 70 GeV and for rapidities within |y|<2.4 giving the widest reach of any measurement of J/ψ production to date. The differential production cross-sections of prompt and non-prompt J/ψ are separately determined and are compared to Colour Singlet NNLO^★, filled, Colour Evaporation Model, and FONLL predictions

Aad, G.

Marshall, Z.

Mateos, D. Lopez

Perez, K.

Nuclear Physics B

English

Caltech Authors - Main

Measurement of the differential cross-sections of

inclusive, prompt and non-prompt J/ψ production in proton–proton collisions at √s = 7 TeV

The inclusive J/psi production cross-section and fraction of J/psi mesons produced in B-hadron decays are measured in proton proton collisions at root s = 7 TeV with the ATLAS detector at the LHC, as a function of the transverse momentum and rapidity of the J/psi, using 2.3 pb(-1) of integrated luminosity. The cross-section is measured from a minimum P-T of 1 GeV to a maximum of 70 GeV and for rapidities within vertical bar y vertical bar < 2.4 giving the widest reach of any measurement of J/psi production to date. The differential production cross-sections of prompt and non-prompt J/psi are separately determined and are compared to Colour Singlet NNLO*, Colour Evaporation Model, and FONLL predictions

Çetin, Serkant Ali

ATLAS Collaboration

Dogus University Institutional Repository

Measurement of the differential cross-sections of inclusive, prompt and non-prompt J/psi production in proton-proton collisions at root s=7 TeV

(a)INFN Sezione di Bologna; (b)Dipartimento di Fisica, Università di Bologna,

(a)INFN Sezione di Genova; (b)Dipartimento di Fisica, Università di Genova,

(a)INFN Sezione di Lecce; (b)Dipartimento di Fisica, Università del Salento,

(a)INFN Sezione di Milano; (b)Dipartimento di Fisica, Università di

(a)INFN Sezione di Napoli; (b)Dipartimento di Scienze Fisiche, Università di Napoli,

(a)INFN Sezione di Pavia; (b)Dipartimento di Fisica Nucleare e Teorica,

(a)INFN Sezione di Pisa; (b)Dipartimento di Fisica E. Fermi, Università di

(a)INFN Sezione di Roma I; (b)Dipartimento di Fisica,

(a)INFN Sezione di Roma Tor Vergata; (b)Dipartimento di Fisica, Università di Roma Tor Vergata,

(a)INFN Sezione di Roma Tre; (b)Dipartimento di Fisica, Università Roma Tre,

(a)Institute of High Energy Physics, Chinese Academy of Sciences, Beijing;

(a)Universidade Federal do Rio De Janeiro COPPE/EE/IF, Rio de Janeiro; (b)Instituto de Fisica, Universidade de Sao Paulo,

[20] ATLASCollaboration, Determination of the muon reconstruction efﬁciency in ATLASat the Z resonance in proton– proton collisions at √ s =

15, arXiv:0807.3666 [hep-ph]. [2] ATLAS Collaboration, Measurement of the centrality dependence of J/ψ yields and observation of Z production in lead-lead collisions with the ATLAS detector at the LHC,

553, arXiv:0711.2473 [hep-ph]. [15]

Ankara; (e)Turkish Atomic Energy Authority,

BC; (b)Department of Physics and Astronomy,

Centre de Calcul CNRS/IN2P3, Villeurbanne Cedex, France a Also at Laboratorio de Instrumentacao e Fisica Experimental de Particulas

Collegato di Cosenza; (b)Dipartimento di Fisica, Università della Calabria, Arcavata di

Collegato di Udine; (b)ICTP, Trieste; (c)Dipartimento di Fisica, Università di Udine,

de Recherches sur les Lois Fondamentales de l’Univers), CEA Saclay (Commissariat a l’Energie Atomique),

Departamento de Fisica Teorica C-15, Universidad Autonoma de Madrid,

Energy Accelerator Research Organization,

Fakultät für Mathematik und Physik,

Fakultät für Physik und Astronomie,

Física d’Altes Energies and Universitat Autònoma de Barcelona and ICREA,

Institut für Astro- und Teilchenphysik,

Instituto de Física Corpuscular (IFIC) and Departamento de Física Atómica,

Instrumentacao e Fisica Experimental de Particulas – LIP, Lisboa, Portugal; (b)Departamento de Fisica Teorica y del Cosmos and CAFPE, Universidad de Granada,

Lunds universitet,

Max-Planck-Institut für Physik (Werner-Heisenberg-Institut),

Paris-Sud and CNRS/IN2P3,

Physique Corpusculaire, Clermont Université and Université Blaise Pascal and CNRS/IN2P3, Aubiere Cedex,

Physique Nucléaire et de Hautes Energies, UPMC and Université Paris-Diderot and CNRS/IN2P3,

Physique Subatomique et de Cosmologie,

Pontiﬁcia Universidad Católica de Chile, Santiago; (b)Departamento de Física, Universidad Técnica Federico Santa María,

Réseau Universitaire de Physique des Hautes Energies – Université Hassan II, Casablanca; (b)Centre National de l’Energie des Sciences Techniques Nucleaires, Rabat; (c)Université Cadi Ayyad,

Ruprecht-Karls-Universität Heidelberg, Heidelberg; (b)Physikalisches Institut, Ruprecht-Karls-Universität Heidelberg, Heidelberg; (c)ZITI Institut für technische Informatik,

Total J/ψ production cross-section at the LHC, arXiv:1006.2750 [hep-ph];

Universidad de Buenos Aires, Buenos Aires,

Université and CNRS/IN2P3,

http://authors.library.caltech.edu/24730/1/Aad2011p15426Nucl_Phys_B.pdf

Measurement of the differential cross-sections of inclusive, prompt and non-prompt J/ψ production in proton–proton collisions at √s = 7 TeV

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