Exploring Hyperons and Hypernuclei with Lattice QCD
Journal Article
·
· Nuclear Physics, A
OSTI ID:836836
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.
- Research Organization:
- Thomas Jefferson National Accelerator Facility, Newport News, VA (US)
- Sponsoring Organization:
- US Department of Energy; USDOE Office of Energy Research (ER) (US)
- DOE Contract Number:
- AC05-84ER40150
- OSTI ID:
- 836836
- Report Number(s):
- JLAB-THY-03-229; DOE/ER/40150-3135; nucl-th/0311027
- Journal Information:
- Nuclear Physics, A, Journal Name: Nuclear Physics, A Vol. 747; ISSN 0375-9474; ISSN NUPABL
- Country of Publication:
- United States
- Language:
- English
Similar Records
Exploring hyperons and hypernuclei with lattice QCD
Nucleon-Hyperon (and YY) Scattering on the Lattice
Polarizations and weak decays of hypernuclei
Journal Article
·
Tue Dec 31 23:00:00 EST 2002
· Nuclear Physics
·
OSTI ID:909506
Nucleon-Hyperon (and YY) Scattering on the Lattice
Conference
·
Thu Sep 01 00:00:00 EDT 2011
·
OSTI ID:1029990
Polarizations and weak decays of hypernuclei
Conference
·
Thu Apr 25 00:00:00 EDT 1991
· AIP Conference Proceedings (American Institute of Physics); (United States)
·
OSTI ID:6134448