Unexpected impact of D waves in low-energy neutral pion photoproduction from the proton and the extraction of multipoles
Contributions of D waves to physical observables for neutral pion photoproduction from the proton in the near-threshold region are studied and means to isolate them are proposed. Various approaches to describe the multipoles are employed-a phenomenological one, a unitary one, and heavy baryon chiral...
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Format: | Article |
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American Physical Society (APS)
2018
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Online Access: | http://hdl.handle.net/1721.1/116185 https://orcid.org/0000-0002-5665-3081 https://orcid.org/0000-0002-3524-1432 |