Evidence for a bound H-dibaryon using lattice QCD

Conference · Sun Apr 01 04:00:00 EDT 2012 · AIP Conf. Proc.

DOI:https://doi.org/10.1063/1.3700546· OSTI ID:1038770

Detmold, Will

The H-dibaryon, a J = 0 state with the valence quark content udsuds, has long been hypothesized to exist because of the attractive nature of color magnetic gluon exchange in the flavor- singlet channel. Using lattice QCD the NPLQCD collaboration have investigated this system and evidence is presented for the existence of a stable H-dibaryon, albeit at a quark mass somewhat larger than that in nature. This calculation is reviewed and combined with subsequent calculations by the HALQCD collaboration at the SU(3) flavor symmetric point to identify bounds on the H-dibaryon mass at the physical quark masses.

• Research Organization: Thomas Jefferson National Accelerator Facility, Newport News, VA (United States)
• Sponsoring Organization: USDOE Office of Science (SC)
• DOE Contract Number: AC05-06OR23177
• OSTI ID: 1038770
• Report Number(s): JLAB-THY-11-1414; DOE/OR/23177-1753
• Conference Information: Journal Name: AIP Conf. Proc. Journal Volume: 1441
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
COLOR
GLUONS
QUANTUM CHROMODYNAMICS
QUARKS
VALENCE