期刊
PHYSICAL REVIEW C
卷 98, 期 6, 页码 -出版社
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevC.98.062201
关键词
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资金
- U.K. Science and Technology Facilities Council (STFC)
- Chilean Comision Nacional de Investigacion Cientifica y Tecnologica (CONICYT)
- Italian Istituto Nazionale di Fisica Nucleare
- French Centre National de la Recherche Scientifique
- French Commissariat a lEnergie Atomique
- U.S. National Science Foundation
- National Research Foundation of Korea
- U.S. Department of Energy [DE-AC05-06OR23177]
- Science and Technology Facilities Council [ST/P004458/1] Funding Source: researchfish
- STFC [ST/P004458/1, ST/P004385/2, ST/P004385/1] Funding Source: UKRI
The doubly strange Xi baryons provide an effective way to study a puzzle called the missing-baryons problem where both quark models and lattice guage theory predict more baryon excited states than are seen experimentally. However, few of these excited states have been observed with any certainty. Here, high-mass Xi* states have been searched for in photoproduction with the detector of the CLAS collaboration, and upper limits for the total cross sections have been established from threshold to W = 3.3 GeV. In addition, the total cross sections of the ground-state Xi(-)(1320) and first excited state Xi(-)(1530) are presented, extending significantly the centre-of-mass energy range of previous data.
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