For Publishers
DiscoveryMetadataPeer reviewHostingPublishing
For Researchers
JoinPublishReviewCollect
Register
Blog
About
Search
Advanced search
My ScienceOpen
Search
For Publishers
For Researchers
Blog
About
19
views
2
references
 Top references
cited by
0
    
0 reviews
 Review
0
comments
 Comment
0
recommends
+1 Recommend
0 collections
    0
    shares
      469
      similar
       All similar
      • Record: found
      • Abstract: found
      • Article: found
      Is Open Access

      Variational Monte Carlo study of pentaquark states in a correlated quark model

      Preprint
      Author(s):
      Publication date Created:

      Read this article at

      ScienceOpenPublisherArXiv
      Bookmark
          There is no author summary for this article yet. Authors can add summaries to their articles on ScienceOpen to make them more accessible to a non-specialist audience.

          Abstract

          Accurate numerical solution of the five-body Schrodinger equation is effected via variational Monte Carlo in a correlated quark model. The spectrum is assumed to exhibit a narrow resonance with strangeness S=+1. A fully antisymmetrized and pair-correlated five-quark wave function is obtained for the assumed non-relativistic Hamiltonian which has spin, isospin, and color dependent pair interactions and many-body confining terms which are fixed by the non-exotic spectra. Gauge field dynamics are modeled via flux tube exchange factors. The energy determined for the ground states with spin-parity 1/2- (1/2+) is 2.22 GeV (2.50 GeV). A lower energy negative parity state is consistent with recent lattice results.

          Related collections

          Most cited references2

          • Record: found
          • Abstract: found
          • Article: found
          Is Open Access

          Quantum Monte Carlo Calculations of \(A\leq6\) Nuclei

          , , … (2009)
          The energies of \(^{3}H\), \(^{3}He\), and \(^{4}He\) ground states, the \({\frac{3}{2}}^{-}\) and \({\frac{1}{2}}^{-}\) scattering states of \(^{5}He\), the ground states of \(^{6}He\), \(^{6}Li\), and \(^{6}Be\) and the \(3^{+}\) and \(0^{+}\) excited states of \(^{6}Li\) have been accurately calculated with the Green's function Monte Carlo method using realistic models of two- and three-nucleon interactions. The splitting of the \(A=3\) isospin \(T=\frac{1}{2}\) and \(A=6\) isospin \(T=1\), \(J^{\pi} = 0^{+}\) multiplets is also studied. The observed energies and radii are generally well reproduced, however, some definite differences between theory and experiment can be identified.
          Article 0 comments Cited 107 times – based on 0 reviews
          Preprint
               Review now
            Bookmark
            • Record: found
            • Abstract: found
            • Article: found
            Is Open Access

            Reviewing the Evidence for Pentaquarks

            A. Dzierba, C. Meyer, A. P. Szczepaniak (2004)
            Several experimental groups have reported evidence for baryons with flavor exotic quantum numbers that cannot be explained as \(qqq\) bound states but require a minimum of five quarks -- \(qqqq \bar q\). These pentaquark states include the \(\theta^{+}\), the \(\Xi^{--}\) and the \(\theta_{c}\). The reported widths of these new states are consistent with experimental resolution and may be as narrow as a few MeV/\(c^2\) or less. Prior to 2003, experimental searches for flavor exotic baryons spanning several decades yielded negative results. There have also been a number of searches carried out since the reports of these new pentaquark states that do not confirm their existence. This review of both the positive and negative reports seeks to understand the current situation regarding the experimental evidence for pentaquarks.
            Article 0 comments Cited 7 times – based on 0 reviews
            Preprint
                 Review now
              Bookmark
              All references

              Author and article information

              Journal
              Publication date Created: 2005-12-21
              Article
              DOI: 10.1063/1.2220303
              ArXiV ID: nucl-th/0512085
              SO-VID: 38c61d27-4d1b-40b0-b80a-358303cce051
              History
              Custom metadata
              Comments 3 pages, PANIC05 conference proceedings
              Categories nucl-th

              ScienceOpen disciplines: Nuclear physics
              Data availability:
              ScienceOpen disciplines: Nuclear physics

              Comments

              Comment on this article