期刊
PHYSICS LETTERS B
卷 753, 期 -, 页码 526-532出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.physletb.2015.12.060
关键词
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资金
- Chinese Academy of Science [2013T2J0012]
- National Natural Science Foundation of China [11505158, 11475227]
- Spanish Ministerio de Economia y Competitividad
- European FEDER funds [FIS2011-28853-C02-01, FIS2011-28853-C02-02]
- Generalitat Valenciana [2014/068]
- State Key Laboratory of Theoretical Physics, Institute of Theoretical Physics, Chinese Academy of Sciences, China [Y5KF151CJ1]
- China Postdoctoral Science Foundation [2015M582197]
- European Community under EU [283286]
We present the theoretical study of the process chi(c0)(1P) -> (Sigma) over bar Sigma pi decay, by taking into account the pi Sigma and pi(Sigma) over bar final state interactions of the final meson-baryon pair based on the chiral unitary approach. We show that the process filters the isospin I = 1 in the pi Sigma channel and offers a reaction to test the existence of an I = 1 state with strangeness S = -1 and spin-parity J(p) = 1/2(-) around the (K) over barN threshold predicted by some theories and supported by some experiments. (C) 2015 The Authors. Published by Elsevier B.V. This is an open access article under the CC BY license (http://creativecommons.org/licenses/by/4.0/).
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