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 · 07 October 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, Newport News, VA (United States)

Sponsoring Organization:: USDOE; USDOE Office of Science (SC), Nuclear Physics (NP) (SC-26)

Grant/Contract Number:: AC05-06OR23177

OSTI ID:: 1222940

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

Journal Information:: Physical Review. D, Particles, Fields, Gravitation and Cosmology, Journal Name: Physical Review. D, Particles, Fields, Gravitation and Cosmology Journal Issue: 7 Vol. 92; ISSN PRVDAQ; ISSN 1550-7998

Publisher:: American Physical Society (APS)Copyright Statement

Country of Publication:: United States

Language:: English

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Cited By (3)

Measurement of the beam asymmetry Σ for π 0 and η photoproduction on the proton at E γ = 9 GeV Al Ghoul, H.; Anassontzis, E. G.; Austregesilo, A. Physical Review C, Vol. 95, Issue 4 https://doi.org/10.1103/physrevc.95.042201	journal	April 2017
Photoproduction of Axionlike Particles Aloni, Daniel; Fanelli, Cristiano; Soreq, Yotam Physical Review Letters, Vol. 123, Issue 7 https://doi.org/10.1103/physrevlett.123.071801	journal	August 2019
Measurement of the beam asymmetry Σ for π0 and η photoproduction on the proton at Eγ=9 GeV Al Ghoul, H.; Anassontzis, E. G.; Austregesilo, A. Figshare https://doi.org/10.1184/r1/4926080	text	January 2017

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