Extracting electric polarizabilities from lattice QCD

Journal Article · Fri May 01 04:00:00 EDT 2009 · Physical Review. D, Particles Fields

DOI:https://doi.org/10.1103/PHYSREVD.79.094505· OSTI ID:21308439

Detmold, W ^[1]; Tiburzi, B C ^[2]; Walker-Loud, A ^[1]

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1. Department of Physics, College of William and Mary, Williamsburg, Virginia 23187-8795 (United States)
2. Maryland Center for Fundamental Physics, Department of Physics, University of Maryland, College Park, Maryland 20742-4111 (United States)

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.

• OSTI ID: 21308439
• Journal Information: Physical Review. D, Particles Fields, Journal Name: Physical Review. D, Particles Fields Journal Issue: 9 Vol. 79; ISSN PRVDAQ; ISSN 0556-2821
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
ANISOTROPY
CONFIGURATION
CORRELATION FUNCTIONS
ELECTRIC FIELDS
KAONS
PIONS NEUTRAL
POLARIZABILITY
QUANTUM CHROMODYNAMICS
QUARKS