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This content will become publicly available on May 29, 2019

Title: Experimental study of the γ p π 0 η p reaction with the A2 setup at the Mainz Microtron

Here, the data available from the A2 Collaboration at MAMI were analyzed to select the γp → π 0ηp reaction on an event-by-event basis, which allows for partial-wave analyses of three-body final states to obtain more reliable results, compared to fits to measured distributions. These data provide the world’s best statistical accuracy in the energy range from threshold to E γ = 1.45 GeV, allowing a finer energy binning in the measurement of all observables needed for understanding the reaction dynamics. The results obtained for the measured observables are compared to existing models, and the impact from the new data is checked by the fit with the revised Mainz model.
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Publication Date:
Grant/Contract Number:
SC0016583; FG02-99ER41110; FG02-88ER40415; FG02-01ER41194
Type:
Accepted Manuscript
Journal Name:
Physical Review C
Additional Journal Information:
Journal Volume: 97; Journal Issue: 5; Journal ID: ISSN 2469-9985
Publisher:
American Physical Society (APS)
Research Org:
George Washington Univ., Washington, DC (United States); Kent State Univ., Kent, OH (United States)
Sponsoring Org:
USDOE Office of Science (SC), Nuclear Physics (NP) (SC-26)
Contributing Orgs:
A2 Collaboration at MAMI
Country of Publication:
United States
Language:
English
Subject:
73 NUCLEAR PHYSICS AND RADIATION PHYSICS; meson photoproduction; 72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; Isobar Models
OSTI Identifier:
1439975
Alternate Identifier(s):
OSTI ID: 1439366; OSTI ID: 1439841