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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Bibliographic Details
Main Authors: Fernandez Ramirez, Cesar, Donnelly, T William, Bernstein, Aron M.
Other Authors: Massachusetts Institute of Technology. Department of Physics
Format: Article
Published: American Physical Society (APS) 2018
Online Access:http://hdl.handle.net/1721.1/116185
https://orcid.org/0000-0002-5665-3081
https://orcid.org/0000-0002-3524-1432