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Present constraints on the H-dibaryon at the physical point from Lattice QCD

Journal Article · · Modern Physics Letters A
 [1];  [2];  [3];  [4];  [5];  [6];  [3];  [2];  [5];  [7];  [8]
  1. Institut fur theoretische Physik, Bern (Switzerland); Univ. of New Hampshire, Durham, NH (United States)
  2. Univ. de Barcelona (Spain)
  3. College of William and Mary, Williamsburg, VA (United States); Jefferson Lab., Newport News, VA (United States)
  4. Jefferson Lab., Newport News, VA (United States)
  5. Univ. of Washington, Seattle, WA (United States)
  6. Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
  7. Indiana Univ., Bloomington, IN (United States)
  8. Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
The current constraints from Lattice QCD on the existence of the H-dibaryon are discussed. With only two significant Lattice QCD calculations of the H-dibaryon binding energy at approximately the same lattice spacing, the form of the chiral and continuum extrapolations to the physical point are not determined. In this brief report, an extrapolation that is quadratic in the pion mass, motivated by low-energy effective field theory, is considered. An extrapolation that is linear in the pion mass is also considered, a form that has no basis in the effective field theory, but is found to describe the light-quark mass dependence observed in Lattice QCD calculations of the octet baryon masses. In both cases, the extrapolation to the physical pion mass allows for a bound H-dibaryon or a near-threshold scattering state.
Research Organization:
Thomas Jefferson National Accelerator Facility, Newport News, VA (United States)
Sponsoring Organization:
USDOE Office of Science (SC)
Contributing Organization:
NPLQCD Collaboration
Grant/Contract Number:
AC02-05CH11231; AC05-06OR23177; AC52-07NA27344; FC02-06ER41443; FC02-07ER41457; FG02-04ER41302; FG02-07ER41527
OSTI ID:
1028775
Report Number(s):
DOE/OR/23177--1492; JLAB-THY--11-1326; arXiv:1103.2821
Journal Information:
Modern Physics Letters A, Journal Name: Modern Physics Letters A Journal Issue: 34 Vol. 26; ISSN 0217-7323
Publisher:
World Scientific PublishingCopyright Statement
Country of Publication:
United States
Language:
English

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Cited By (19)

Exotic hadrons in heavy ion collisions journal December 2011
Scattering lengths of strangeness S = − 2 baryon-baryon interactions journal January 2012
Nucleon-nucleon scattering parameters in the limit of SU(3) flavor symmetry journal August 2013
Deuteron and exotic two-body bound states from lattice QCD journal March 2012
Light nuclei and hypernuclei from quantum chromodynamics in the limit of SU(3) flavor symmetry journal February 2013
Three-particle scattering amplitudes from a finite volume formalism journal May 2013
Two-particle multichannel systems in a finite volume with arbitrary spin journal April 2014
Multichannel 1 → 2 transition amplitudes in a finite volume journal February 2015
Search for doubly-heavy dibaryons in a quark model journal August 2016
Lattice QCD study of the H dibaryon using hexaquark and two-baryon interpolators journal April 2019
Hyperon-Nucleon Interactions from Quantum Chromodynamics and the Composition of Dense Nuclear Matter journal October 2012
Multi-hadron systems in lattice QCD journal July 2013
Hadrons and nuclei journal November 2019
Foundations of strangeness nuclear physics derived from chiral effective field theory book March 2017
Foundations of strangeness nuclear physics derived from chiral effective field theory journal January 2017
Lattice QCD study of the $H$ dibaryon using hexaquark and two-baryon interpolators text January 2018
Nucleon-Nucleon Scattering Parameters in the Limit of SU(3) Flavor Symmetry text January 2013
Foundations of Strangeness Nuclear Physics derived from chiral Effective Field Theory text January 2016
Search for doubly-heavy dibaryons in a quark model text January 2016

Figures / Tables (1)


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