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

Abstract

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.

Authors:
 [1];  [2];  [3];  [4];  [5];  [6];  [3];  [2];  [5];  [7];  [8]
+ Show Author Affiliations
  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)
Publication Date:
Research Org.:
Thomas Jefferson National Accelerator Facility (TJNAF), Newport News, VA (United States)
Sponsoring Org.:
USDOE Office of Science (SC)
Contributing Org.:
NPLQCD Collaboration
OSTI Identifier:
1028775
Report Number(s):
JLAB-THY-11-1326; DOE/OR/23177-1492; arXiv:1103.2821
Journal ID: ISSN 0217-7323; TRN: US1105493
Grant/Contract Number:  
FG03-97ER4014; AC05-06OR23177; FG02-04ER41302; FG02-07ER41527; FC02-06ER41443; AC52-07NA27344; FC02-07ER41457; AC02-05CH11231
Resource Type:
Accepted Manuscript
Journal Name:
Modern Physics Letters A
Additional Journal Information:
Journal Volume: 26; Journal Issue: 34; Journal ID: ISSN 0217-7323
Publisher:
World Scientific Publishing
Country of Publication:
United States
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; BARYONS; BINDING ENERGY; EXTRAPOLATION; PIONS; QUANTUM CHROMODYNAMICS; SCATTERING; H-dibaryon; Lattice QCD

Citation Formats

Beane, S. R., Chang, E., Detmold, W., Joo, B., Lin, H. -W., Luu, T. C., Orginos, K., Parreno, A., Savage, M. J., Torok, A., and Walker-Loud, A. Present constraints on the H-dibaryon at the physical point from Lattice QCD. United States: N. p., 2011. Web. doi:10.1142/S0217732311036978.
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Beane, S. R., Chang, E., Detmold, W., Joo, B., Lin, H. -W., Luu, T. C., Orginos, K., Parreno, A., Savage, M. J., Torok, A., & Walker-Loud, A. Present constraints on the H-dibaryon at the physical point from Lattice QCD. United States. https://doi.org/10.1142/S0217732311036978
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Beane, S. R., Chang, E., Detmold, W., Joo, B., Lin, H. -W., Luu, T. C., Orginos, K., Parreno, A., Savage, M. J., Torok, A., and Walker-Loud, A. Thu . "Present constraints on the H-dibaryon at the physical point from Lattice QCD". United States. https://doi.org/10.1142/S0217732311036978. https://www.osti.gov/servlets/purl/1028775.
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@article{osti_1028775,
title = {Present constraints on the H-dibaryon at the physical point from Lattice QCD},
author = {Beane, S. R. and Chang, E. and Detmold, W. and Joo, B. and Lin, H. -W. and Luu, T. C. and Orginos, K. and Parreno, A. and Savage, M. J. and Torok, A. and Walker-Loud, A.},
abstractNote = {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.},
doi = {10.1142/S0217732311036978},
journal = {Modern Physics Letters A},
number = 34,
volume = 26,
place = {United States},
year = {Thu Nov 10 00:00:00 EST 2011},
month = {Thu Nov 10 00:00:00 EST 2011}
}
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https://doi.org/10.1142/S0217732311036978
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    Works referencing / citing this record:

    Scattering lengths of strangeness S = − 2 baryon-baryon interactions
    journal, January 2012

    Search for doubly-heavy dibaryons in a quark model
    journal, August 2016

    Multi-hadron systems in lattice QCD
    journal, July 2013

    Hadrons and nuclei
    journal, November 2019

    • Detmold, William; Edwards, Robert G.; Dudek, Jozef J.
    • The European Physical Journal A, Vol. 55, Issue 11
    • DOI: 10.1140/epja/i2019-12902-4

    Foundations of strangeness nuclear physics derived from chiral effective field theory
    book, March 2017

    Lattice QCD study of the $H$ dibaryon using hexaquark and two-baryon interpolators
    text, January 2018

    • Francis, A.; Green, Jeremy; Junnarkar, P. M.
    • Deutsches Elektronen-Synchrotron, DESY, Hamburg
    • DOI: 10.3204/pubdb-2018-01963

    Nucleon-Nucleon Scattering Parameters in the Limit of SU(3) Flavor Symmetry
    text, January 2013

    Search for doubly-heavy dibaryons in a quark model
    text, January 2016

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