Cascade Baryon Spectrum from Lattice QCD

Conference · Mon Dec 01 00:00:00 EST 2008

DOI:https://doi.org/10.22323/1.066.0125· OSTI ID:956139

Mathur, Nilmani; Bulava, John; Edwards, Robert; Engelson, Eric; Joo, Balint; Lichtl, Adam; Lin, Huey-Wen; Morningstar, Colin; Richards, David; Wallace, Stephen

A comprehensive study of the cascade baryon spectrum using lattice QCD affords the prospect of predicting the masses of states not yet discovered experimentally, and determining the spin and parity of those states for which the quantum numbers are not yet known. The study of the cascades, containing two strange quarks, is particularly attractive for lattice QCD in that the chiral effects are reduced compared to states composed only of u/d quarks, and the states are typically narrow. We report preliminary results for the cascade spectrum obtained by using anisotropic Nf = 2 Wilson lattices with temporal lattice spacing 5.56 GeV?1.

• Research Organization: Thomas Jefferson National Accelerator Facility (TJNAF), Newport News, VA (United States)
• Sponsoring Organization: USDOE
• DOE Contract Number: AC05-060R23177
• OSTI ID: 956139
• Report Number(s): JLAB-THY-08-918; DOE/OR/23177-0574; TRN: US1004894
• Resource Relation: Conference: Paper compiled for Lattice 2008
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
BARYONS
PARITY
QUANTUM CHROMODYNAMICS
QUANTUM NUMBERS
QUARKS
SPIN
LATTICE FIELD THEORY