Observation of Isolated High-ET Photons in Deep Inelastic Scattering

ZEUS Collaboration

doi:10.1016/j.physletb.2004.05.033

Observation of Isolated High-E_T Photons in Deep Inelastic Scattering

ZEUS Collaboration

Department of Physics

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

Abstract

First measurements of cross sections for isolated prompt photon production in deep inelastic ep scattering have been made using the ZEUS detector at the HERA electron-proton collider using an integrated luminosity of 121 pb -1. A signal for isolated photons in the transverse energy and rapidity ranges 5<ETγ<10GeV and -0.7<ηγ<0.9 was observed for virtualities of the exchanged photon of Q2>35GeV2. Cross sections are presented for inclusive prompt photons and for those accompanied by a single jet in the range ETjet≥6GeV and -1. 5≤ηjet<1.8. Calculations at order α 3αs describe the data reasonably well. © 2004 Elsevier B.V. All rights reserved.

Original language	American English
Pages (from-to)	86-100
Journal	Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
Volume	595
Issue number	1-4
DOIs	https://doi.org/10.1016/j.physletb.2004.05.033
State	Published - Aug 12 2004

Disciplines

Physics

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Cite this

@article{654cc81d8b2e4b34914eac0426d45fab,

title = "Observation of Isolated High-ET Photons in Deep Inelastic Scattering",

abstract = "First measurements of cross sections for isolated prompt photon production in deep inelastic ep scattering have been made using the ZEUS detector at the HERA electron-proton collider using an integrated luminosity of 121 pb -1. A signal for isolated photons in the transverse energy and rapidity ranges 535GeV2. Cross sections are presented for inclusive prompt photons and for those accompanied by a single jet in the range ETjet≥6GeV and -1. 5≤ηjet<1.8. Calculations at order α 3αs describe the data reasonably well. {\textcopyright} 2004 Elsevier B.V. All rights reserved.",

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

year = "2004",

month = aug,

day = "12",

doi = "10.1016/j.physletb.2004.05.033",

language = "American English",

volume = "595",

pages = "86--100",

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

number = "1-4",

}

TY - JOUR

T1 - Observation of Isolated High-ET Photons in Deep Inelastic Scattering

AU - ZEUS Collaboration

AU - Mattingly, Margarita C. K.

PY - 2004/8/12

Y1 - 2004/8/12

N2 - First measurements of cross sections for isolated prompt photon production in deep inelastic ep scattering have been made using the ZEUS detector at the HERA electron-proton collider using an integrated luminosity of 121 pb -1. A signal for isolated photons in the transverse energy and rapidity ranges 535GeV2. Cross sections are presented for inclusive prompt photons and for those accompanied by a single jet in the range ETjet≥6GeV and -1. 5≤ηjet<1.8. Calculations at order α 3αs describe the data reasonably well. © 2004 Elsevier B.V. All rights reserved.

AB - First measurements of cross sections for isolated prompt photon production in deep inelastic ep scattering have been made using the ZEUS detector at the HERA electron-proton collider using an integrated luminosity of 121 pb -1. A signal for isolated photons in the transverse energy and rapidity ranges 535GeV2. Cross sections are presented for inclusive prompt photons and for those accompanied by a single jet in the range ETjet≥6GeV and -1. 5≤ηjet<1.8. Calculations at order α 3αs describe the data reasonably well. © 2004 Elsevier B.V. All rights reserved.

UR - https://digitalcommons.andrews.edu/pubs/2198

U2 - 10.1016/j.physletb.2004.05.033

DO - 10.1016/j.physletb.2004.05.033

M3 - Article

VL - 595

SP - 86

EP - 100

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 - 1-4

ER -