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 forms of the chiral and continuum extrapolations to the physical point are not determined. In this brief report, we consider the constraints on the H-dibaryon imposed by two simple chiral extrapolations. In both instances, the extrapolation to the physical pion mass allows for a bound H-dibaryon or a near-threshold scattering state. Further lattice QCD calculations are required to clarify this situation.
| Original language | English |
|---|---|
| Pages (from-to) | 2587-2595 |
| Number of pages | 9 |
| Journal | Modern Physics Letters A |
| Volume | 26 |
| Issue number | 34 |
| DOIs | |
| State | Published - 2011 |
| Externally published | Yes |
Funding
S.R.B. was supported in part by the NSF CAREER grant PHY-0645570. The Albert Einstein Center for Fundamental Physics is supported by the Innovations-und Kooperationsprojekt C-13 of the Schweizerische Universitätskonferenz SUK/CRUS. The work of E.C. and A.P. is supported by the contract FIS2008-01661 from MEC (Spain) and FEDER. A.P. acknowledges support from the RTN Flavianet MRTN-CT-2006-035482 (EU). H.-W.L. and M.J.S. were supported in part by the DOE grant DE-FG03-97ER4014. W.D., K.O. and B.J. were supported in part by DOE grants DE-AC05-06OR23177 (JSA) and DE-FG02-04ER41302. W.D. was also supported by DOE OJI grant DE-SC0001784 and Jeffress Memorial Trust, grant J-968. B.J. was also supported by DOE grants, DE-FC02-06ER41440 and DE-FC02-06ER41449 (SciDAC USQCD) K.O. was also supported in part by NSF grant CCF-0728915, Jeffress Memorial Trust grant J-813 and DOE OJI grant DE-FG02-07ER41527. A.T. was supported by NSF grant PHY-0555234 and DOE grant DE-FC02-06ER41443. The work of T.L. was performed under the auspices of the U.S. Department of Energy by LLNL under Contract DE-AC52-07NA27344. The work of A.W.L. was supported in part by the Director, Office of Energy Research, Office of High Energy and Nuclear Physics, Divisions of Nuclear Physics, of the U.S. DOE under Contract No. DE-AC02-05CH11231.
| Funders | Funder number |
|---|---|
| DOE OJI | DE-SC0001784 |
| Divisions of Nuclear Physics | DE-AC02-05CH11231 |
| Office of Energy Research | |
| Office of High Energy and Nuclear Physics | |
| Schweizerische Universitätskonferenz SUK/CRUS | FIS2008-01661 |
| National Science Foundation | 0728915, 0555234, 0645570, PHY-0645570 |
| U.S. Department of Energy | DE-FG03-97ER4014, DE-FG02-04ER41302, DE-AC05-06OR23177 |
| Lawrence Livermore National Laboratory | DE-AC52-07NA27344 |
| Thomas F. and Kate Miller Jeffress Memorial Trust | DE-FC02-06ER41449, J-968, CCF-0728915, DE-FC02-06ER41443, DE-FC02-06ER41440, PHY-0555234, DE-FG02-07ER41527, J-813 |
| Ministerio de Economía y Competitividad | |
| European Regional Development Fund | MRTN-CT-2006-035482 |
Keywords
- H-dibaryon
- lattice QCD