Prompt and non-prompt J/psi production in pp collisions at sqrt(s)=7TeV

Volker Adler; Stephanie Beauceron; Freya Blekman; Stijn Blyweert; Jorgen D'Hondt; Olivier Devroede; Alexis Kalogeropoulos; Joris Maes; Michael Maes; Stefaan Tavernier; Walter Van Doninck; Petra Van Mulders; Gerrit Van Onsem; Ilaria Villella

Prompt and non-prompt J/psi production in pp collisions at sqrt(s)=7TeV

Volker Adler, Stephanie Beauceron, Freya Blekman, Stijn Blyweert, Jorgen D'Hondt, Olivier Devroede, Alexis Kalogeropoulos, Joris Maes, Michael Maes, Stefaan Tavernier, Walter Van Doninck, Petra Van Mulders, Gerrit Van Onsem, Ilaria Villella

Physics

Research output: Contribution to journal › Article › peer-review

Abstract

The production of J/psi mesons is studied in pp collisions at sqrt(s)=7 TeV with the CMS experiment at the LHC. The measurement is based on a dimuon sample corresponding to an integrated luminosity of 314 inverse nanobarns. The J/psi differential cross section is determined, as a function of the J/psi transverse momentum, in three rapidity ranges. A fit to the decay length distribution is used to separate the prompt from the non-prompt (b hadron to J/psi) component. Integrated over J/psi transverse momentum from 6.5 to 30 GeV/c and over rapidity in the range |y| <2.4, the measured cross sections, times the dimuon decay branching fraction, are 70.9 \pm 2.1 (stat.) \pm 3.0 (syst.) \pm 7.8(luminosity) nb for prompt J/psi mesons assuming unpolarized production and 26.0 \pm 1.4 (stat.) \pm 1.6 (syst.) \pm 2.9 (luminosity) nb for J/psi mesons from b-hadron decays.

Original language	English
Article number	1575
Journal	Eur. Phys.j.c
Volume	71
Publication status	Published - 2011

Keywords

dimuon : final state
differential cross section
rapidity
transverse momentum
CERN LHC coll
CMS
J/psi(3100) : hadroproduction : measured

Cite this

Adler, Volker ; Beauceron, Stephanie ; Blekman, Freya ; Blyweert, Stijn ; D'Hondt, Jorgen ; Devroede, Olivier ; Kalogeropoulos, Alexis ; Maes, Joris ; Maes, Michael ; Tavernier, Stefaan ; Van Doninck, Walter ; Van Mulders, Petra ; Van Onsem, Gerrit ; Villella, Ilaria. / Prompt and non-prompt J/psi production in pp collisions at sqrt(s)=7TeV. In: Eur. Phys.j.c. 2011 ; Vol. 71.

@article{6efa4c2013674d3a9c2565960ce2e755,

title = "Prompt and non-prompt J/psi production in pp collisions at sqrt(s)=7TeV",

abstract = "The production of J/psi mesons is studied in pp collisions at sqrt(s)=7 TeV with the CMS experiment at the LHC. The measurement is based on a dimuon sample corresponding to an integrated luminosity of 314 inverse nanobarns. The J/psi differential cross section is determined, as a function of the J/psi transverse momentum, in three rapidity ranges. A fit to the decay length distribution is used to separate the prompt from the non-prompt (b hadron to J/psi) component. Integrated over J/psi transverse momentum from 6.5 to 30 GeV/c and over rapidity in the range |y| <2.4, the measured cross sections, times the dimuon decay branching fraction, are 70.9 \pm 2.1 (stat.) \pm 3.0 (syst.) \pm 7.8(luminosity) nb for prompt J/psi mesons assuming unpolarized production and 26.0 \pm 1.4 (stat.) \pm 1.6 (syst.) \pm 2.9 (luminosity) nb for J/psi mesons from b-hadron decays.",

keywords = "dimuon : final state, differential cross section, rapidity, transverse momentum, CERN LHC coll, CMS, J/psi(3100) : hadroproduction : measured",

author = "Volker Adler and Stephanie Beauceron and Freya Blekman and Stijn Blyweert and Jorgen D'Hondt and Olivier Devroede and Alexis Kalogeropoulos and Joris Maes and Michael Maes and Stefaan Tavernier and {Van Doninck}, Walter and {Van Mulders}, Petra and {Van Onsem}, Gerrit and Ilaria Villella",

year = "2011",

language = "English",

volume = "71",

journal = "European Physical Journal C - Particles & Fields",

issn = "1434-6044",

publisher = "Springer Verlag",

}

Prompt and non-prompt J/psi production in pp collisions at sqrt(s)=7TeV. / Adler, Volker; Beauceron, Stephanie; Blekman, Freya; Blyweert, Stijn; D'Hondt, Jorgen ; Devroede, Olivier; Kalogeropoulos, Alexis; Maes, Joris; Maes, Michael; Tavernier, Stefaan; Van Doninck, Walter; Van Mulders, Petra; Van Onsem, Gerrit; Villella, Ilaria.

In: Eur. Phys.j.c, Vol. 71, 1575, 2011.

Research output: Contribution to journal › Article › peer-review

TY - JOUR

T1 - Prompt and non-prompt J/psi production in pp collisions at sqrt(s)=7TeV

AU - Adler, Volker

AU - Beauceron, Stephanie

AU - Blekman, Freya

AU - Blyweert, Stijn

AU - D'Hondt, Jorgen

AU - Devroede, Olivier

AU - Kalogeropoulos, Alexis

AU - Maes, Joris

AU - Maes, Michael

AU - Tavernier, Stefaan

AU - Van Doninck, Walter

AU - Van Mulders, Petra

AU - Van Onsem, Gerrit

AU - Villella, Ilaria

PY - 2011

Y1 - 2011

N2 - The production of J/psi mesons is studied in pp collisions at sqrt(s)=7 TeV with the CMS experiment at the LHC. The measurement is based on a dimuon sample corresponding to an integrated luminosity of 314 inverse nanobarns. The J/psi differential cross section is determined, as a function of the J/psi transverse momentum, in three rapidity ranges. A fit to the decay length distribution is used to separate the prompt from the non-prompt (b hadron to J/psi) component. Integrated over J/psi transverse momentum from 6.5 to 30 GeV/c and over rapidity in the range |y| <2.4, the measured cross sections, times the dimuon decay branching fraction, are 70.9 \pm 2.1 (stat.) \pm 3.0 (syst.) \pm 7.8(luminosity) nb for prompt J/psi mesons assuming unpolarized production and 26.0 \pm 1.4 (stat.) \pm 1.6 (syst.) \pm 2.9 (luminosity) nb for J/psi mesons from b-hadron decays.

AB - The production of J/psi mesons is studied in pp collisions at sqrt(s)=7 TeV with the CMS experiment at the LHC. The measurement is based on a dimuon sample corresponding to an integrated luminosity of 314 inverse nanobarns. The J/psi differential cross section is determined, as a function of the J/psi transverse momentum, in three rapidity ranges. A fit to the decay length distribution is used to separate the prompt from the non-prompt (b hadron to J/psi) component. Integrated over J/psi transverse momentum from 6.5 to 30 GeV/c and over rapidity in the range |y| <2.4, the measured cross sections, times the dimuon decay branching fraction, are 70.9 \pm 2.1 (stat.) \pm 3.0 (syst.) \pm 7.8(luminosity) nb for prompt J/psi mesons assuming unpolarized production and 26.0 \pm 1.4 (stat.) \pm 1.6 (syst.) \pm 2.9 (luminosity) nb for J/psi mesons from b-hadron decays.

KW - dimuon : final state

KW - differential cross section

KW - rapidity

KW - transverse momentum

KW - CERN LHC coll

KW - CMS

KW - J/psi(3100) : hadroproduction : measured

M3 - Article

VL - 71

JO - European Physical Journal C - Particles & Fields

JF - European Physical Journal C - Particles & Fields

SN - 1434-6044

M1 - 1575

ER -

Prompt and non-prompt J/psi production in pp collisions at sqrt(s)=7TeV

Abstract

Keywords

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