Double photon production in polarized proton-proton collisions

Journal Article · Tue Sep 01 04:00:00 EDT 1992 · Physical Review, D (Particles Fields); (United States)

DOI:https://doi.org/10.1103/PhysRevD.46.2011· OSTI ID:7157762

Doncheski, M A ^[1]; Robinett, R W ^[2]

---

1. Department of Physics, University of Wisconsin, Madison, Wisconsin 53706 (United States)
2. Department of Physics, The Pennsylvania State University, University Park, Pennsylvania 16802 (United States)

We derive the partonic level longitudinal spin-spin asymmetries for the processes relevant to the hadronic production of isolated double photon events, specifically {ital q{bar q}}{r arrow}{gamma}{gamma} and {ital gg}{r arrow}{gamma}{gamma}. We discuss production rates and observable asymmetries ({ital A}{sub {ital L}{ital L}}) in polarized {ital pp} collisions at the BNL Relativistic Heavy Ion Collider and their dependence on the spin-dependent sea and gluon distributions. Because the decay {ital H}{sup 0}{r arrow}{gamma}{gamma} is a possibly important signal for intermediate mass Higgs-scalar production, we also briefly discuss the spin dependence of standard model Higgs-boson production via {ital gg}{r arrow}{ital H}{sup 0} (low {ital p}{sub {ital T}}) and {ital gg}{r arrow}{ital gH}{sup 0}, {ital qg}{r arrow}{ital qH}{sup 0}, and {ital q{bar q}}{r arrow}{ital gH}{sup 0} (high {ital p}{sub {ital T}}).

• DOE Contract Number: AC02-76ER00881
• OSTI ID: 7157762
• Journal Information: Physical Review, D (Particles Fields); (United States), Journal Name: Physical Review, D (Particles Fields); (United States) Vol. 46:5; ISSN PRVDA; ISSN 0556-2821
• Country of Publication: United States
• Language: English

Related Subjects

662230 -- Quantum Chromodynamics-- (1992-)
662340* -- Hadron Interactions-- (1992-)
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
ANGULAR MOMENTUM
BARYON-BARYON INTERACTIONS
BEAMS
BOSONS
CROSS SECTIONS
DRELL MODEL
ELEMENTARY PARTICLES
EMC EFFECT
FIELD THEORIES
GLUONS
HADRON-HADRON INTERACTIONS
HIGGS BOSONS
INTERACTIONS
MASS
MASSLESS PARTICLES
MATHEMATICAL MODELS
MATRIX ELEMENTS
NUCLEON-NUCLEON INTERACTIONS
PARTICLE INTERACTIONS
PARTICLE MODELS
PARTICLE PRODUCTION
PARTICLE PROPERTIES
PHOTONS
POLARIZED BEAMS
POSTULATED PARTICLES
PROTON-NUCLEON INTERACTIONS
PROTON-PROTON INTERACTIONS
QUANTUM CHROMODYNAMICS
QUANTUM FIELD THEORY
QUARK-ANTIQUARK INTERACTIONS
SPIN
STANDARD MODEL
UNIFIED GAUGE MODELS