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Type: Journal article
Title: Mass of the H dibaryon
Author: Shanahan, P.
Thomas, A.
Young, R.
Citation: Physical Review Letters, 2011; 107(9):092004-1-092004-4
Publisher: American Physical Soc
Issue Date: 2011
ISSN: 0031-9007
Statement of
P.E. Shanahan, A.W. Thomas and R.D. Young
Abstract: Recent lattice QCD calculations have reported evidence for the existence of a bound state with strangeness -2 and baryon number 2 at quark masses somewhat higher than the physical values. By developing a description of the dependence of this binding energy on the up, down and strange quark masses that allows a controlled chiral extrapolation, we explore the hypothesis that this state is to be identified with the H dibaryon. Taking as input the recent results of the HAL and NPLQCD Collaborations, we show that the H dibaryon is likely to be unbound by 13 _ 14 MeV at the physical point.
Rights: ©2011 American Physical Society
DOI: 10.1103/PhysRevLett.107.092004
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Chemistry and Physics publications

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