Actions for Exploring Hyperons and Hypernuclei with Lattice QCD [electronic resource].

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Exploring Hyperons and Hypernuclei with Lattice QCD [electronic resource].

Published
Washington, D.C. : United States. Dept. of Energy, 2005.
Oak Ridge, Tenn. : Distributed by the Office of Scientific and Technical Information, U.S. Dept. of Energy.
Physical Description
page(s) 322.3 Kilobytes : digital, PDF file
Additional Creators
Thomas Jefferson National Accelerator Facility (U.S.), United States. Department of Energy, United States. Department of Energy. Office of Energy Research, and United States. Department of Energy. Office of Scientific and Technical Information
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Summary
In this work we outline a program for lattice QCD that would provide a first step toward understanding the strong and weak interactions of strange baryons. The study of hypernuclear physics has provided a significant amount of information regarding the structure and weak decays of light nuclei containing one or two Lambda's, and Sigma's. From a theoretical standpoint, little is known about the hyperon-nucleon interaction, which is required input for systematic calculations of hypernuclear structure. Furthermore, the long-standing discrepancies in the P-wave amplitudes for nonleptonic hyperon decays remain to be understood, and their resolution is central to a better understanding of the weak decays of hypernuclei. We present a framework that utilizes Luscher's finite-volume techniques in lattice QCD to extract the scattering length and effective range for Lambda-N scattering in both QCD and partially-quenched QCD. The effective theory describing the nonleptonic decays of hyperons using isospin symmetry alone, appropriate for lattice calculations, is constructed.
Report Numbers
E 1.99:jlab-thy-03-229
E 1.99: doe/er/40150-3135
E 1.99: nucl-th/0311027
nucl-th/0311027
doe/er/40150-3135
jlab-thy-03-229
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Other Subject(s)
Note
Published through SciTech Connect.
01/01/2005.
"jlab-thy-03-229"
" doe/er/40150-3135"
" nucl-th/0311027"
Nuclear Physics, A 747 ISSN 0375-9474; NUPABL FT
M.J. Savage; A. Parreno; S.R. Beane; P.F. Bedaque.
Funding Information
AC05-84ER40150
View MARC record | catkey: 13824777