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Title: Understanding the nature of Λ ( 1405 ) through Regge physics

It appears that there are two resonances with $J^P= 1/2^-$ quantum numbers in the energy region near the $$\Lambda(1405)$$ hyperon. The nature of these states is a topic of current debate. To provide further insight we use Regge phenomenology to access how these two resonances fit the established hyperon spectrum. We find that only one of these resonances is compatible with a three-quark state.
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Publication Date:
OSTI Identifier:
Report Number(s):
JLAB-THY-15-2182; DOE/OR/23177-3614; arXiv:1512.03136
Journal ID: ISSN 2470-0010; PRVDAQ
DOE Contract Number:
FG0287ER40365; PHY-1415459; PHY-1205019; AC05-06OR23177
Resource Type:
Journal Article
Resource Relation:
Journal Name: Physical Review D; Journal Volume: 93; Journal Issue: 7
Research Org:
Thomas Jefferson National Accelerator Facility, Newport News, VA (United States)
Sponsoring Org:
USDOE Office of Science (SC), Nuclear Physics (NP) (SC-26)
Contributing Orgs:
Joint Physics Analysis Center
Country of Publication:
United States