Dijet Angular Distributions in Photoproduction of Charm at HERA

ZEUS Collaboration; Margarita Mattingly

doi:10.1016/S0370-2693(03)00752-4

Dijet Angular Distributions in Photoproduction of Charm at HERA

ZEUS Collaboration
, Margarita Mattingly

Department of Physics

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

Abstract

Dijet angular distributions of photoproduction events in which a D*± meson is produced in association with one of two energetic jets have been measured with the ZEUS detector at HERA, using an integrated luminosity of 120 pb-1. Differential cross sections as a function of the angle between the charm-jet and the proton-beam direction in the dijet rest frame have been measured for samples enriched in direct or resolved photon events. The results are compared with predictions from leading-order parton-shower Monte Carlo models and with next-to-leading-order QCD calculations. The angular distributions show clear evidence for the existence of charm originating from the photon.

Original language	American English
Pages (from-to)	87-101
Journal	Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
Volume	565
DOIs	https://doi.org/10.1016/S0370-2693(03)00752-4
State	Published - Jul 17 2003

Disciplines

Physics

Access to Document

10.1016/S0370-2693(03)00752-4License: Unspecified

Dijet Angular Distributions in Photoproduction of Charm at HERAFinal published version, 573 KBLicense: Unspecified

Cite this

@article{3fe76a9d7e344869815f41c97c491c8e,

title = "Dijet Angular Distributions in Photoproduction of Charm at HERA",

abstract = "Dijet angular distributions of photoproduction events in which a D*± meson is produced in association with one of two energetic jets have been measured with the ZEUS detector at HERA, using an integrated luminosity of 120 pb-1. Differential cross sections as a function of the angle between the charm-jet and the proton-beam direction in the dijet rest frame have been measured for samples enriched in direct or resolved photon events. The results are compared with predictions from leading-order parton-shower Monte Carlo models and with next-to-leading-order QCD calculations. The angular distributions show clear evidence for the existence of charm originating from the photon. ",

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

year = "2003",

month = jul,

day = "17",

doi = "10.1016/S0370-2693(03)00752-4",

language = "American English",

volume = "565",

pages = "87--101",

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

}

TY - JOUR

T1 - Dijet Angular Distributions in Photoproduction of Charm at HERA

AU - ZEUS Collaboration

AU - Mattingly, Margarita

PY - 2003/7/17

Y1 - 2003/7/17

N2 - Dijet angular distributions of photoproduction events in which a D*± meson is produced in association with one of two energetic jets have been measured with the ZEUS detector at HERA, using an integrated luminosity of 120 pb-1. Differential cross sections as a function of the angle between the charm-jet and the proton-beam direction in the dijet rest frame have been measured for samples enriched in direct or resolved photon events. The results are compared with predictions from leading-order parton-shower Monte Carlo models and with next-to-leading-order QCD calculations. The angular distributions show clear evidence for the existence of charm originating from the photon.

AB - Dijet angular distributions of photoproduction events in which a D*± meson is produced in association with one of two energetic jets have been measured with the ZEUS detector at HERA, using an integrated luminosity of 120 pb-1. Differential cross sections as a function of the angle between the charm-jet and the proton-beam direction in the dijet rest frame have been measured for samples enriched in direct or resolved photon events. The results are compared with predictions from leading-order parton-shower Monte Carlo models and with next-to-leading-order QCD calculations. The angular distributions show clear evidence for the existence of charm originating from the photon.

UR - https://digitalcommons.andrews.edu/pubs/2206

U2 - 10.1016/S0370-2693(03)00752-4

DO - 10.1016/S0370-2693(03)00752-4

M3 - Article

VL - 565

SP - 87

EP - 101

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

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

ER -

Dijet Angular Distributions in Photoproduction of Charm at HERA

Abstract

Disciplines

Access to Document

Other files and links

Cite this