期刊
PHYSICAL REVIEW C
卷 100, 期 5, 页码 -出版社
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevC.100.052201
关键词
-
资金
- Natural Sciences and Engineering Research Council of Canada [SAPPJ-2018-00021]
- U.S. Department of Energy, Office of Science, Office of Nuclear Physics [DE-FG02-87ER40315, DE-AC05-06OR23177]
- U.S. Department of Energy
- U.S. National Science Foundation
- German Research Foundation
- GSI Helmholtzzentrum fur Schwerionenforschung GmbH
- Russian Foundation for Basic Research
- U.K. Science and Technology Facilities Council
- Chilean Comision Nacional de Investigacion Cientifica y Tecnologica
- National Natural Science Foundation of China
- China Scholarship Council
- STFC [ST/P004458/1] Funding Source: UKRI
We report on the measurement of the beam asymmetry Sigma for the reactions (gamma) over right arrowp -> p eta and (gamma) over right arrowp -> p eta' from the GlueX experiment using an 8.2-8.8-GeV linearly polarized tagged photon beam incident on a liquid hydrogen target in Hall D at Jefferson Laboratory. These measurements are made as a function of momentum transfer -t with significantly higher statistical precision than our earlier. measurements and are the first measurements of eta' in this energy range. We compare the results to theoretical predictions based on t-channel quasiparticle exchange. We also compare the ratio of Sigma(eta) to Sigma(eta)' to these models as this ratio is predicted to be sensitive to the amount of s (s) over bar exchange in the production. We find that photoproduction of both eta and eta' is dominated by natural parity exchange with little dependence on -t.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据