Progress in higher order computations of prompt photon production in e + A DIS at small x

Kaushik Roy; Raju Venugopalan

Progress in higher order computations of prompt photon production in e + A DIS at small x

Kaushik Roy
, Raju Venugopalan

Physics and Astronomy

Stony Brook University
Brookhaven National Laboratory

Research output: Contribution to journal › Conference article › peer-review

Abstract

We compute the differential cross-section for inclusive prompt photon production in deeply inelastic electron-nucleus scattering at small x in the framework of the Color Glass Condensate (CGC) effective field theory (EFT). At leading order in α_s, but all orders in Q²_s/Q², where Q_s is the saturation scale in the nucleus, our result is proportional to universal dipole and quadrupole Wilson line correlators in the nucleus. Leading twist k⊥ and collinearly factorized results are recovered in appropriate limits. We outline recent progress in extending the LO results to NLO+NLLx accuracy.

Original language	English
Article number	053
Journal	Proceedings of Science
Volume	316
State	Published - 2018
Event	26th International Workshop on Deep-Inelastic Scattering and Related Subjects, DIS 2018 - Kobe, Japan Duration: Apr 16 2018 → Apr 20 2018

Cite this

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title = "Progress in higher order computations of prompt photon production in e + A DIS at small x",

abstract = "We compute the differential cross-section for inclusive prompt photon production in deeply inelastic electron-nucleus scattering at small x in the framework of the Color Glass Condensate (CGC) effective field theory (EFT). At leading order in αs, but all orders in Q2s/Q2, where Qs is the saturation scale in the nucleus, our result is proportional to universal dipole and quadrupole Wilson line correlators in the nucleus. Leading twist k⊥ and collinearly factorized results are recovered in appropriate limits. We outline recent progress in extending the LO results to NLO+NLLx accuracy.",

author = "Kaushik Roy and Raju Venugopalan",

note = "Publisher Copyright: {\textcopyright} Copyright owned by the author(s) under the terms of the Creative Commons.; 26th International Workshop on Deep-Inelastic Scattering and Related Subjects, DIS 2018 ; Conference date: 16-04-2018 Through 20-04-2018",

year = "2018",

language = "English",

volume = "316",

journal = "Proceedings of Science",

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T1 - Progress in higher order computations of prompt photon production in e + A DIS at small x

AU - Roy, Kaushik

AU - Venugopalan, Raju

N1 - Publisher Copyright: © Copyright owned by the author(s) under the terms of the Creative Commons.

PY - 2018

Y1 - 2018

N2 - We compute the differential cross-section for inclusive prompt photon production in deeply inelastic electron-nucleus scattering at small x in the framework of the Color Glass Condensate (CGC) effective field theory (EFT). At leading order in αs, but all orders in Q2s/Q2, where Qs is the saturation scale in the nucleus, our result is proportional to universal dipole and quadrupole Wilson line correlators in the nucleus. Leading twist k⊥ and collinearly factorized results are recovered in appropriate limits. We outline recent progress in extending the LO results to NLO+NLLx accuracy.

AB - We compute the differential cross-section for inclusive prompt photon production in deeply inelastic electron-nucleus scattering at small x in the framework of the Color Glass Condensate (CGC) effective field theory (EFT). At leading order in αs, but all orders in Q2s/Q2, where Qs is the saturation scale in the nucleus, our result is proportional to universal dipole and quadrupole Wilson line correlators in the nucleus. Leading twist k⊥ and collinearly factorized results are recovered in appropriate limits. We outline recent progress in extending the LO results to NLO+NLLx accuracy.

UR - https://www.scopus.com/pages/publications/85069976667

M3 - Conference article

AN - SCOPUS:85069976667

SN - 1824-8039

VL - 316

JO - Proceedings of Science

JF - Proceedings of Science

M1 - 053

T2 - 26th International Workshop on Deep-Inelastic Scattering and Related Subjects, DIS 2018

Y2 - 16 April 2018 through 20 April 2018

ER -

Progress in higher order computations of prompt photon production in e + A DIS at small x

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