Understanding the nature of $\mathrm{\Lambda }\left(1405\right)$ through Regge physics

Journal Article · Fri Apr 01 00:00:00 EDT 2016 · Physical Review D

DOI:https://doi.org/10.1103/PhysRevD.93.074015· OSTI ID:1262726

Fernández-Ramírez, César; Danilkin, Igor V.; Mathieu, Vincent; Szczepaniak, Adam P.

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.

• Research Organization: Thomas Jefferson National Accelerator Facility (TJNAF), Newport News, VA (United States)
• Sponsoring Organization: USDOE Office of Science (SC), Nuclear Physics (NP)
• Contributing Organization: Joint Physics Analysis Center
• DOE Contract Number: FG0287ER40365; PHY-1415459; PHY-1205019; AC05-06OR23177
• OSTI ID: 1262726
• Report Number(s): JLAB-THY-15-2182; DOE/OR/23177-3614; arXiv:1512.03136; PRVDAQ
• Journal Information: Physical Review D, Vol. 93, Issue 7; ISSN 2470-0010
• Country of Publication: United States
• Language: English