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Title: Structure of pion photoproduction amplitudes

Abstract

We derive and apply the finite energy sum rules to pion photoproduction. We evaluate the low-energy part of the sum rules using several state-of-the-art models. Here, we show how the differences in the low-energy side of the sum rules might originate from different quantum number assignments of baryon resonances. We interpret the observed features in the low-energy side of the sum rules with the expectation from Regge theory. Finally, we present a model, in terms of a Regge-pole expansion, that matches the sum rules and the high-energy observables.

Authors:
; ; ; ; ; ; ; ;
Publication Date:
Research Org.:
Thomas Jefferson National Accelerator Facility (TJNAF), Newport News, VA (United States)
Sponsoring Org.:
USDOE Office of Science (SC), Nuclear Physics (NP) (SC-26); National Science Foundation (NSF)
Contributing Org.:
[Joint Physics Analysis Center]
OSTI Identifier:
1462289
Alternate Identifier(s):
OSTI ID: 1462943
Report Number(s):
[JLAB-THY-18-2755; DOE/OR/-23177-4485; arXiv:1806.08414]
[Journal ID: ISSN 2470-0010; PRVDAQ; 014041]
Grant/Contract Number:  
[AC05-06OR23177; FG02-87ER40365; PHY-1415459; PHY-1205019; PHY-1513524; IA101717; 251817]
Resource Type:
Published Article
Journal Name:
Physical Review D
Additional Journal Information:
[Journal Name: Physical Review D Journal Volume: 98 Journal Issue: 1]; Journal ID: ISSN 2470-0010
Publisher:
American Physical Society (APS)
Country of Publication:
United States
Language:
English
Subject:
73 NUCLEAR PHYSICS AND RADIATION PHYSICS

Citation Formats

Mathieu, V., Nys, J., Fernández-Ramírez, C., Blin, A. N. Hiller, Jackura, A., Pilloni, A., Szczepaniak, A. P., Fox, G., and Joint Physics Analysis Center. Structure of pion photoproduction amplitudes. United States: N. p., 2018. Web. doi:10.1103/PhysRevD.98.014041.
Mathieu, V., Nys, J., Fernández-Ramírez, C., Blin, A. N. Hiller, Jackura, A., Pilloni, A., Szczepaniak, A. P., Fox, G., & Joint Physics Analysis Center. Structure of pion photoproduction amplitudes. United States. doi:10.1103/PhysRevD.98.014041.
Mathieu, V., Nys, J., Fernández-Ramírez, C., Blin, A. N. Hiller, Jackura, A., Pilloni, A., Szczepaniak, A. P., Fox, G., and Joint Physics Analysis Center. Tue . "Structure of pion photoproduction amplitudes". United States. doi:10.1103/PhysRevD.98.014041.
@article{osti_1462289,
title = {Structure of pion photoproduction amplitudes},
author = {Mathieu, V. and Nys, J. and Fernández-Ramírez, C. and Blin, A. N. Hiller and Jackura, A. and Pilloni, A. and Szczepaniak, A. P. and Fox, G. and Joint Physics Analysis Center},
abstractNote = {We derive and apply the finite energy sum rules to pion photoproduction. We evaluate the low-energy part of the sum rules using several state-of-the-art models. Here, we show how the differences in the low-energy side of the sum rules might originate from different quantum number assignments of baryon resonances. We interpret the observed features in the low-energy side of the sum rules with the expectation from Regge theory. Finally, we present a model, in terms of a Regge-pole expansion, that matches the sum rules and the high-energy observables.},
doi = {10.1103/PhysRevD.98.014041},
journal = {Physical Review D},
number = [1],
volume = [98],
place = {United States},
year = {2018},
month = {7}
}

Journal Article:
Free Publicly Available Full Text
Publisher's Version of Record
DOI: 10.1103/PhysRevD.98.014041

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Cited by: 3 works
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