Measurement of D* ± Meson Production in e± p Scattering at Low Q2

ZEUS Collaboration

doi:10.1016/j.physletb.2007.04.003

Measurement of D^{* ±} Meson Production in e^± p Scattering at Low Q²

ZEUS Collaboration

Department of Physics

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

Abstract

The production of D* ± (2010) mesons in e± p scattering in the range of exchanged photon virtuality 0.05 < Q2 < 0.7 GeV2 has been measured with the ZEUS detector at HERA using an integrated luminosity of 82 pb-1. The decay channels D* + → D0 π+ with D0 → K- π+ and corresponding antiparticle decay were used to identify D* mesons and the ZEUS beampipe calorimeter was used to identify the scattered electron. Differential D* cross sections as functions of Q2, inelasticity, y, transverse momentum of the D* meson, pT (D*), and pseudorapidity of the D* meson, η (D*), have been measured in the kinematic region 0.02 < y < 0.85, 1.5 < pT (D*) < 9.0 GeV and | η (D*) | < 1.5. The measured differential cross sections are in agreement with two different NLO QCD calculations. The cross sections are also compared to previous ZEUS measurements in the photoproduction and DIS regimes.

Original language	American English
Pages (from-to)	111-121
Journal	Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
Volume	649
Issue number	2-3
DOIs	https://doi.org/10.1016/j.physletb.2007.04.003
State	Published - May 2007

Disciplines

Physics

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Cite this

@article{63b00ad4398e47baa41b7229c1e942f0,

title = "Measurement of D* ± Meson Production in e± p Scattering at Low Q2",

abstract = "The production of D* ± (2010) mesons in e± p scattering in the range of exchanged photon virtuality 0.05 < Q2 < 0.7 GeV2 has been measured with the ZEUS detector at HERA using an integrated luminosity of 82 pb-1. The decay channels D* + → D0 π+ with D0 → K- π+ and corresponding antiparticle decay were used to identify D* mesons and the ZEUS beampipe calorimeter was used to identify the scattered electron. Differential D* cross sections as functions of Q2, inelasticity, y, transverse momentum of the D* meson, pT (D*), and pseudorapidity of the D* meson, η (D*), have been measured in the kinematic region 0.02 < y < 0.85, 1.5 < pT (D*) < 9.0 GeV and | η (D*) | < 1.5. The measured differential cross sections are in agreement with two different NLO QCD calculations. The cross sections are also compared to previous ZEUS measurements in the photoproduction and DIS regimes.",

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

year = "2007",

month = may,

doi = "10.1016/j.physletb.2007.04.003",

language = "American English",

volume = "649",

pages = "111--121",

journal = "Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics",

number = "2-3",

}

TY - JOUR

T1 - Measurement of D* ± Meson Production in e± p Scattering at Low Q2

AU - ZEUS Collaboration

AU - Mattingly, Margarita C. K.

PY - 2007/5

Y1 - 2007/5

N2 - The production of D* ± (2010) mesons in e± p scattering in the range of exchanged photon virtuality 0.05 < Q2 < 0.7 GeV2 has been measured with the ZEUS detector at HERA using an integrated luminosity of 82 pb-1. The decay channels D* + → D0 π+ with D0 → K- π+ and corresponding antiparticle decay were used to identify D* mesons and the ZEUS beampipe calorimeter was used to identify the scattered electron. Differential D* cross sections as functions of Q2, inelasticity, y, transverse momentum of the D* meson, pT (D*), and pseudorapidity of the D* meson, η (D*), have been measured in the kinematic region 0.02 < y < 0.85, 1.5 < pT (D*) < 9.0 GeV and | η (D*) | < 1.5. The measured differential cross sections are in agreement with two different NLO QCD calculations. The cross sections are also compared to previous ZEUS measurements in the photoproduction and DIS regimes.

AB - The production of D* ± (2010) mesons in e± p scattering in the range of exchanged photon virtuality 0.05 < Q2 < 0.7 GeV2 has been measured with the ZEUS detector at HERA using an integrated luminosity of 82 pb-1. The decay channels D* + → D0 π+ with D0 → K- π+ and corresponding antiparticle decay were used to identify D* mesons and the ZEUS beampipe calorimeter was used to identify the scattered electron. Differential D* cross sections as functions of Q2, inelasticity, y, transverse momentum of the D* meson, pT (D*), and pseudorapidity of the D* meson, η (D*), have been measured in the kinematic region 0.02 < y < 0.85, 1.5 < pT (D*) < 9.0 GeV and | η (D*) | < 1.5. The measured differential cross sections are in agreement with two different NLO QCD calculations. The cross sections are also compared to previous ZEUS measurements in the photoproduction and DIS regimes.

UR - https://digitalcommons.andrews.edu/pubs/2015

U2 - 10.1016/j.physletb.2007.04.003

DO - 10.1016/j.physletb.2007.04.003

M3 - Article

VL - 649

SP - 111

EP - 121

JO - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics

JF - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics

IS - 2-3

ER -