Leading neutrons from polarized pp collisions

Journal Article · Mon Oct 13 00:00:00 EDT 2008 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.3013042· OSTI ID:21251450

Kopeliovich, B Z ^[1]; Potashnikova, I K; Schmidt, Ivan ^[1]; Soffer, J ^[2]

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1. Departamento de Fisica y Centro de Estudios Subatomicos, Universidad Tecnica Federico Santa Maria, Casilla 110-V, Valparaiso (Chile)
2. Department of Physics, Temple University, Philadelphia, PA 19122-6082 (United States)

We calculate the cross section and single-spin azimuthal asymmetry, A{sub n}(t) for inclusive neutron production in pp collisions at forward rapidities relative to the polarized proton. Absorptive corrections to the pion pole generate a relative phase between the spin-flip and non-flip amplitudes, which leads to an appreciable spin asymmetry. However, the asymmetry observed recently in the PHENIX experiment at RHIC at very small |t|{approx}0.01 GeV{sup 2} cannot be explained by this mechanism.

• OSTI ID: 21251450
• Journal Information: AIP Conference Proceedings, Vol. 1056, Issue 1; Conference: 6. international conference on perspectives in hadronic physics, Trieste (Italy), 12-16 May 2008; Other Information: DOI: 10.1063/1.3013042; (c) 2008 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); ISSN 0094-243X
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
ASYMMETRY
BROOKHAVEN RHIC
CROSS SECTIONS
INCLUSIVE INTERACTIONS
NEUTRONS
PARTICLE RAPIDITY
PION-NUCLEON INTERACTIONS
PIONS
PROTON-PROTON INTERACTIONS
PROTONS
QUANTUM CHROMODYNAMICS
SPIN
SPIN FLIP