Extracting Electric Polarizabilities from Lattice QCD

Journal Article · Fri May 01 00:00:00 EDT 2009 · Physical Review D

DOI:https://doi.org/10.1103/PhysRevD.79.094505· OSTI ID:977170

Will Detmold, William Detmold, Brian Tiburzi, Andre Walker-Loud

Charged and neutral, pion and kaon electric polarizabilities are extracted from lattice QCD using an ensemble of anisotropic gauge configurations with dynamical clover fermions. We utilize classical background fields to access the polarizabilities from two-point correlation functions. Uniform background fields are achieved by quantizing the electric field strength with the proper treatment of boundary flux. These external fields, however, are implemented only in the valence quark sector. A novel method to extract charge particle polarizabilities is successfully demonstrated for the first time.

• Research Organization: Thomas Jefferson National Accelerator Facility (TJNAF), Newport News, VA (United States)
• Sponsoring Organization: USDOE Office of Science (SC)
• DOE Contract Number: AC05-06OR23177
• OSTI ID: 977170
• Report Number(s): JLAB-THY-09-965; DOE/OR/23177-0709; PRVDAQ; TRN: US1002804
• Journal Information: Physical Review D, Vol. 79; ISSN 1550-7998
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
CLOVER
CORRELATION FUNCTIONS
ELECTRIC FIELDS
FERMIONS
KAONS
PIONS
QUANTUM CHROMODYNAMICS
QUARKS
VALENCE