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

Abstract

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.

Authors:
; ; ;
Publication Date:
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 Org.:
Joint Physics Analysis Center
OSTI Identifier:
1262726
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
Country of Publication:
United States
Language:
English

Citation Formats

Fernández-Ramírez, César, Danilkin, Igor V., Mathieu, Vincent, and Szczepaniak, Adam P. Understanding the nature of Λ(1405) through Regge physics. United States: N. p., 2016. Web. doi:10.1103/PhysRevD.93.074015.
Fernández-Ramírez, César, Danilkin, Igor V., Mathieu, Vincent, & Szczepaniak, Adam P. Understanding the nature of Λ(1405) through Regge physics. United States. doi:10.1103/PhysRevD.93.074015.
Fernández-Ramírez, César, Danilkin, Igor V., Mathieu, Vincent, and Szczepaniak, Adam P. Fri . "Understanding the nature of Λ(1405) through Regge physics". United States. doi:10.1103/PhysRevD.93.074015. https://www.osti.gov/servlets/purl/1262726.
@article{osti_1262726,
title = {Understanding the nature of Λ(1405) through Regge physics},
author = {Fernández-Ramírez, César and Danilkin, Igor V. and Mathieu, Vincent and Szczepaniak, Adam P.},
abstractNote = {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.},
doi = {10.1103/PhysRevD.93.074015},
journal = {Physical Review D},
number = 7,
volume = 93,
place = {United States},
year = {Fri Apr 01 00:00:00 EDT 2016},
month = {Fri Apr 01 00:00:00 EDT 2016}
}