Fully Coupled Channel Approach to Doubly Strange sShell Hypernuclei
Abstract
We describe ab initio calculations of doubly strange, S=2, sshell hypernuclei ({sub {lambda}}{sub {lambda}}{sup 4}H, {sub {lambda}}{sub {lambda}}{sup 5}H, {sub {lambda}}{sub {lambda}}{sup 5}He, and {sub {lambda}}{sub {lambda}}{sup 6}He) as a first attempt to explore the fewbody problem of the fullcoupled channel scheme for these systems. The wave function includes {lambda}{lambda}, {lambda}{sigma}, N{xi}, and {sigma}{sigma} channels. Minnesota NN, D2{sup '} YN, and simulated YY potentials based on the Nijmegen hardcore model are used. Boundstate solutions of these systems are obtained. We find that a set of phenomenological B{sub 8}B{sub 8} interactions among the octet baryons in S=0,1, and 2 sectors, which is consistent with all of the available experimental binding energies of S=0,1, and 2 sshell (hyper)nuclei, can predict a particle stable bound state of {sub {lambda}}{sub {lambda}}{sup 4}H. For {sub {lambda}}{sub {lambda}}{sup 5}H and {sub {lambda}}{sub {lambda}}{sup 5}He, {lambda}N{sigma}N and {xi}N{lambda}{sigma} potentials significantly affect the net {lambda}{lambda}N{xi} coupling, and a large {xi} probability is obtained even for a weaker {lambda}{lambda}N{xi} potential.
 Authors:
 Institute of Particle and Nuclear Studies, KEK, Tsukuba 3050801 (Japan)
 Department of Information Science, Gifu University, Gifu 5011193 (Japan)
 College of Science and Technology, Nihon University, Funabashi 2748501 (Japan)
 Department of Physics, Mandalay University, Mandalay (Myanmar)
 Publication Date:
 OSTI Identifier:
 20696304
 Resource Type:
 Journal Article
 Resource Relation:
 Journal Name: Physical Review Letters; Journal Volume: 94; Journal Issue: 20; Other Information: DOI: 10.1103/PhysRevLett.94.202502; (c) 2005 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA)
 Country of Publication:
 United States
 Language:
 English
 Subject:
 73 NUCLEAR PHYSICS AND RADIATION PHYSICS; BINDING ENERGY; BOUND STATE; COUPLED CHANNEL THEORY; HELIUM 5; HELIUM 6; HYDROGEN 4; HYDROGEN 5; HYPERNUCLEI; LAMBDA BARYONS; MATHEMATICAL SOLUTIONS; NUCLEAR POTENTIAL; NUCLEONHYPERON INTERACTIONS; NUCLEONNUCLEON INTERACTIONS; PROBABILITY; SHELL MODELS; SIGMA BARYONS; WAVE FUNCTIONS; XI BARYONS
Citation Formats
Nemura, H., Shinmura, S., Akaishi, Y., and Myint, Khin Swe. Fully Coupled Channel Approach to Doubly Strange sShell Hypernuclei. United States: N. p., 2005.
Web. doi:10.1103/PhysRevLett.94.202502.
Nemura, H., Shinmura, S., Akaishi, Y., & Myint, Khin Swe. Fully Coupled Channel Approach to Doubly Strange sShell Hypernuclei. United States. doi:10.1103/PhysRevLett.94.202502.
Nemura, H., Shinmura, S., Akaishi, Y., and Myint, Khin Swe. 2005.
"Fully Coupled Channel Approach to Doubly Strange sShell Hypernuclei". United States.
doi:10.1103/PhysRevLett.94.202502.
@article{osti_20696304,
title = {Fully Coupled Channel Approach to Doubly Strange sShell Hypernuclei},
author = {Nemura, H. and Shinmura, S. and Akaishi, Y. and Myint, Khin Swe},
abstractNote = {We describe ab initio calculations of doubly strange, S=2, sshell hypernuclei ({sub {lambda}}{sub {lambda}}{sup 4}H, {sub {lambda}}{sub {lambda}}{sup 5}H, {sub {lambda}}{sub {lambda}}{sup 5}He, and {sub {lambda}}{sub {lambda}}{sup 6}He) as a first attempt to explore the fewbody problem of the fullcoupled channel scheme for these systems. The wave function includes {lambda}{lambda}, {lambda}{sigma}, N{xi}, and {sigma}{sigma} channels. Minnesota NN, D2{sup '} YN, and simulated YY potentials based on the Nijmegen hardcore model are used. Boundstate solutions of these systems are obtained. We find that a set of phenomenological B{sub 8}B{sub 8} interactions among the octet baryons in S=0,1, and 2 sectors, which is consistent with all of the available experimental binding energies of S=0,1, and 2 sshell (hyper)nuclei, can predict a particle stable bound state of {sub {lambda}}{sub {lambda}}{sup 4}H. For {sub {lambda}}{sub {lambda}}{sup 5}H and {sub {lambda}}{sub {lambda}}{sup 5}He, {lambda}N{sigma}N and {xi}N{lambda}{sigma} potentials significantly affect the net {lambda}{lambda}N{xi} coupling, and a large {xi} probability is obtained even for a weaker {lambda}{lambda}N{xi} potential.},
doi = {10.1103/PhysRevLett.94.202502},
journal = {Physical Review Letters},
number = 20,
volume = 94,
place = {United States},
year = 2005,
month = 5
}

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