Direct photon production in polarized hadron collisions at collider and fixed target energies

Abstract

Recently determined next-to-leading order sets of polarized parton distributions are used to study large-p_T $\vec{p}\vec{p}\to \gamma +X$ at $\sqrt{s}=38,100and500GeV$. Certain conversion terms, necessary to use the above sets, are determined. It is concluded that, to distinguish between the above sets, planned RHIC experiments should be successful, in particular at c.m. photon pseudorapidity $\simeq 1$, and that a proposed HERA-$\vec{N}$ fixed target experiment should have rather large accuracy at relatively large $x_T(=2p_T/\sqrt{s})$.

9 pages, 5 figures available from authors. To be published in Phys. Rev. D

References in corpus (7)

• Polarized Parton Distributions in the Nucleon
• The Calculation of the Two-Loop Spin Splitting Functions $P_{ij}^{(1)}(x)$
• The spin-dependent two-loop splitting functions
• Leading Order QCD Corrections to $b\to s\gamma$ and $b\to sg$ Decays in Three Regularization Schemes
• Dimensional Reduction in Non-Supersymmetric Theories
• QCD Corrections to Spin Dependent Drell-Yan and a Global Subtraction Scheme
• Inclusive Prompt Photon Production in Polarized pp Collisions at HERA-N

Cited by in corpus (9)

• Prospects for Spin Physics at RHIC
• Next-to-leading order QCD corrections to high-p_T pion production in longitudinally polarized pp collisions
• Spin Physics and Polarized Structure Functions
• Towards a global analysis of polarized parton distributions
• x-Dependent Polarized Parton Distributions
• Isolated-photon production in polarized pp collisions
• Next-to-Leading Order Corrections to Heavy Flavour Production in Longitudinally Polarized Photon-Nucleon Collisions
• Isolated Photons at Hadron Colliders at O(αalpha_s^2) (II): Spin Dependent Case
• Exploring the polarization of gluons in the nucleon