Measurement of J/ψ Helicity Distributions in Inelastic Photoproduction at HERA

ZEUS Collaboration

doi:10.1088/1126-6708/2009/12/007

Measurement of J/ψ Helicity Distributions in Inelastic Photoproduction at HERA

ZEUS Collaboration

Department of Physics

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

Abstract

The J/ψ decay angular distributions have been measured in inelastic photo-production in ep collisions with the ZEUS detector at HERA, using an integrated luminosity of 468 pb-1. The range in photon-proton centre-of-mass energy, W, was 50 < W < 180 GeV. The J/ψ mesons were identified through their decay into muon pairs. The polar and azimuthal angles of the μ+ were measured in the J/ψ rest frame and compared to theoretical predictions at leading and next-to-leading order in QCD.

Original language	American English
Article number	007
Journal	Journal of High Energy Physics
Issue number	12
DOIs	https://doi.org/10.1088/1126-6708/2009/12/007
State	Published - Dec 2009

Keywords

Lepton-Nucleon scattering

Disciplines

Physics

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Measurement of J Helicity Distributions in Inelastic PhotoproduFinal published version, 459 KBLicense: Unspecified

Cite this

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title = "Measurement of J/ψ Helicity Distributions in Inelastic Photoproduction at HERA",

abstract = "The J/ψ decay angular distributions have been measured in inelastic photo-production in ep collisions with the ZEUS detector at HERA, using an integrated luminosity of 468 pb-1. The range in photon-proton centre-of-mass energy, W, was 50 < W < 180 GeV. The J/ψ mesons were identified through their decay into muon pairs. The polar and azimuthal angles of the μ+ were measured in the J/ψ rest frame and compared to theoretical predictions at leading and next-to-leading order in QCD.",

keywords = "Lepton-Nucleon scattering",

author = "\{ZEUS Collaboration\} and Mattingly, \{Margarita C. K.\}",

year = "2009",

month = dec,

doi = "10.1088/1126-6708/2009/12/007",

language = "American English",

journal = "Journal of High Energy Physics",

number = "12",

}

TY - JOUR

T1 - Measurement of J/ψ Helicity Distributions in Inelastic Photoproduction at HERA

AU - ZEUS Collaboration

AU - Mattingly, Margarita C. K.

PY - 2009/12

Y1 - 2009/12

N2 - The J/ψ decay angular distributions have been measured in inelastic photo-production in ep collisions with the ZEUS detector at HERA, using an integrated luminosity of 468 pb-1. The range in photon-proton centre-of-mass energy, W, was 50 < W < 180 GeV. The J/ψ mesons were identified through their decay into muon pairs. The polar and azimuthal angles of the μ+ were measured in the J/ψ rest frame and compared to theoretical predictions at leading and next-to-leading order in QCD.

AB - The J/ψ decay angular distributions have been measured in inelastic photo-production in ep collisions with the ZEUS detector at HERA, using an integrated luminosity of 468 pb-1. The range in photon-proton centre-of-mass energy, W, was 50 < W < 180 GeV. The J/ψ mesons were identified through their decay into muon pairs. The polar and azimuthal angles of the μ+ were measured in the J/ψ rest frame and compared to theoretical predictions at leading and next-to-leading order in QCD.

KW - Lepton-Nucleon scattering

UR - https://digitalcommons.andrews.edu/pubs/1857

U2 - 10.1088/1126-6708/2009/12/007

DO - 10.1088/1126-6708/2009/12/007

M3 - Article

JO - Journal of High Energy Physics

JF - Journal of High Energy Physics

IS - 12

M1 - 007

ER -

Measurement of J/ψ Helicity Distributions in Inelastic Photoproduction at HERA

Abstract

Keywords

Disciplines

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