Neutral pion photoproduction in a Regge model

Mathieu, Vincent; Fox, G.; Szczepaniak, Adam P.

doi:10.1103/PhysRevD.92.074013

Title: Neutral pion photoproduction in a Regge model

Journal Article · Thu Oct 08 00:00:00 EDT 2015 · Physical Review. D, Particles, Fields, Gravitation and Cosmology

DOI:https://doi.org/10.1103/PhysRevD.92.074013· OSTI ID:1222940

Mathieu, Vincent ^[1]; Fox, G. ^[1]; Szczepaniak, Adam P. ^[2]

Indiana Univ., Bloomington, IN (United States)
Indiana Univ., Bloomington, IN (United States); Thomas Jefferson National Accelerator Facility (TJNAF), Newport News, VA (United States)

The reaction $$\gamma p \to \pi^0 p$$ is investigated in the energy range above the resonance region. The amplitudes include the leading Regge singularities in the cross-channel and correctly describe the differential cross section for beam energies above 4 GeV and for momentum transferred above $$-3\mbox{ GeV}^2$$. Furthermore, the energy dependence of the beam asymmetry and the reaction $$\gamma n \to \pi^0 n$$ seem is quantitative consistent with the Regge-pole dominance.

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Research Organization:: Thomas Jefferson National Accelerator Facility (TJNAF), Newport News, VA (United States)

Sponsoring Organization:: USDOE Office of Science (SC), Nuclear Physics (NP)

Grant/Contract Number:: AC05-06OR23177

OSTI ID:: 1222940

Alternate ID(s):: OSTI ID: 1223147

Report Number(s):: JLAB-THY-15-2058; DOE/OR/23177-3370; arXiv:1505.02321; PRVDAQ

Journal Information:: Physical Review. D, Particles, Fields, Gravitation and Cosmology, Vol. 92, Issue 7; Conference: Switzlerland, 8-12 Oct 2010; ISSN 1550-7998

Publisher:: American Physical Society (APS)Copyright Statement

Country of Publication:: United States

Language:: English

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Cited by: 31 works

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