Binding energy of the dihyperon in the quark cluster model

Sträub, U.; Zhang, Z. Y.; Bräuer, K.; Faessler, Amand; Khadkikar, S.B.

doi:10.1016/0370-2693(88)90763-0

Cited by 91 publications

(47 citation statements)

References 21 publications

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“…3) Using H 2 , we find a weak binding energy of 24 MeV which is consistent with previous reports of weak binding in Ref. [6]. (Note that, in…”

supporting

confidence: 91%

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Some new results on the H dibaryon in the quark cluster model

Wolfe¹,

Maltman²

1997

Physics Letters B

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The H dibaryon channel, (I = 0, J = 0, S = −2), is revisited in the nonrelativistic quark cluster model (NRQCM) using a basis extended beyond the usual set of baryon cluster pairs to include an explicit spatially symmetric 6q state, analogous in structure to the MIT bag model H. We find that the binding predicted using the two-baryon basis alone is significantly deepened by the addition of the additional 6q configuration. The NRQCM thus appears, contrary to earlier findings, to be incompatible with the experimental information available for this channel.

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“…3) Using H 2 , we find a weak binding energy of 24 MeV which is consistent with previous reports of weak binding in Ref. [6]. (Note that, in…”

supporting

confidence: 91%

“…In addition to numerous experimental searches (see Ref. [2] for a recent review of searches for doubly strange systems, including the H, as well as other references cited therein), a variety of models have been employed to study the H channel [3][4][5][6]. In most, though not all of these models, a deeply bound H also occurs.…”

mentioning

confidence: 99%

Some new results on the H dibaryon in the quark cluster model

Wolfe¹,

Maltman²

1997

Physics Letters B

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“…The calculated total binding energies of 8 Be and 9 Be underestimate the observed values by about 5 MeV. The underestimation is common to all other hypernuclei, and can be resolved by performing angular momentum projection and the generator coordinate method (GCM), which are usually performed in the study of normal nuclei by AMD.…”

Section: B Discussion On Each Hypernucleusmentioning

confidence: 97%

“…Many theoretical works have suggested that such phenomena, caused by a particle, result in changes of deformation [1][2][3][4][5], shrinkage of the intercluster distance [1,2], and creation of the supersymmetric (genuine) hypernuclear state [2,[6][7][8][9]. Owing to experimental developments, some of these phenomena have been observed in light p-shell hypernuclei.…”

Section: Introductionmentioning

confidence: 99%

Deformation of hypernuclei studied with antisymmetrized molecular dynamics

et al. 2011

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An extended version of antisymmetrized molecular dynamics was developed to study the structure of p-sd shell hypernuclei. By using an effective N interaction, we investigated the energy curves of 9 Be, 13 C, and 20,21 Ne as a function of nuclear quadrupole deformation. The changes to nuclear deformation caused by particles are discussed. We found that in the p wave enhances nuclear deformation, while that in the s wave reduces it. This effect is most prominent in 13 C. The possibility of parity inversion in 20 Ne is also examined.

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“…The same situation occurs in Refs. [25], where a resonance 26 MeV above threshold is found in a OGE + PSE model. However, the addition of a scalar exchange at the baryonic level provides large attraction so that the binding becomes B H = 20 MeV.…”

Section: A Pieces Of the Interactionmentioning

confidence: 99%

Examination of the H dibaryon within a chiral constituent quark model

Caramés

Valcarce

2012

Phys. Rev. C

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We perform a coupled-channel calculation of the H dibaryon within a chiral constituent quark model. The problem is solved within a quark model constrained by the experimental data of strangeness -1 and -2 two-baryon systems. We examine in detail the role played by the different contributions of the interacting potential as well as the number of coupled channels considered. Special attention has been payed to the parameter dependence, flavor symmetry breaking and spatial configurations. The value extracted for the binding energy of the H dibaryon, being compatible with the restrictions imposed by the Nagara event, falls within a plausible extrapolation of recent lattice QCD results.

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Binding energy of the dihyperon in the quark cluster model

Cited by 91 publications

References 21 publications

Some new results on the H dibaryon in the quark cluster model

Some new results on the H dibaryon in the quark cluster model

Deformation of hypernuclei studied with antisymmetrized molecular dynamics

Examination of the H dibaryon within a chiral constituent quark model

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