期刊
EUROPEAN PHYSICAL JOURNAL A
卷 52, 期 9, 页码 -出版社
SPRINGER
DOI: 10.1140/epja/i2016-16284-9
关键词
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资金
- DFG [SFB/TR 16, SFB 1044]
- DFG (Sino-German CRC) [110]
- Department of Energy (Offices of Science and Nuclear Physics) award [DE-FG02-99-ER41110, DE-SC0016582, DE-AC05-06OR23177]
- National Science Foundation through the NSF/PIF grant [PHY 1415459]
- NSF/Career grant [1452055]
- Chinese Academy of Sciences (CAS) President's International Fellowship Initiative (PIFI) [2015VMA076]
- RSF [16-12-10267]
- Russian Science Foundation [16-12-10267] Funding Source: Russian Science Foundation
- Direct For Mathematical & Physical Scien
- Division Of Physics [1415459] Funding Source: National Science Foundation
- Division Of Physics
- Direct For Mathematical & Physical Scien [1452055] Funding Source: National Science Foundation
New data on pion-photoproduction off the proton have been included in the partial-wave analyses Bonn-Gatchina and SAID and in the dynamical coupled-channel approach Julich-Bonn. All reproduce the recent new data well: the double-polarization data for E, G, H, P and T in gamma p -> pi(0)p from ELSA, the beam asymmetry Sigma for gamma p -> pi(0)p and pi(+)n from Jefferson Laboratory, and the precise new differential cross section and beam asymmetry data Sigma for gamma p -> pi(0)p from MAMI. The new fit results for the multipoles are compared with predictions not taking into account the new data. The mutual agreement is improved considerably but still far from being perfect.
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