Hyperon-nucleon interaction

Swart, J. J. de; Nagels, M. M.; Rijken, Th. A.; Verhoeven, P.

doi:10.1007/bfb0044916

Cited by 46 publications

(28 citation statements)

References 66 publications

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“…[32]. Introducing [33] q = 1 2 (p + p), k = p − p, n = p × p , (2.31) with, of course, n = q × k, we choose for the operators P j in spin space…”

Section: Lippmann-schwinger Equationmentioning

confidence: 99%

Extended-soft-core baryon-baryon model. I. Nucleon-nucleon scattering with the ESC04 interaction

Rijken

2006

Phys. Rev. C

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The NN results are presented from the extended-soft-core (ESC) interactions. They consist of local and nonlocal potentials due to (i) one-boson-exchanges (OBE), which are the members of nonets of pseudoscalar, vector, scalar, and axial mesons, (ii) diffractive exchanges, (iii) two-pseudoscalar exchanges (PS-PS), and (iv) meson-pair exchanges (MPE). We describe a fit to the pp and np data for 0 T lab 350 MeV, having a typical χ 2 /N data = 1.155. Here, we used ∼20 quasi-free physical parameters, which are coupling constants and cutoff masses. A remarkable feature of the couplings is that we were able to require them to follow rather closely the pattern predicted by the 3 P 0 quark-pair-creation (QPC) model. As a result the 11 OBE couplings are rather constrained, i.e., quasi free. Also, the deuteron binding energy and the several NN scattering lengths are fitted.

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“…[32]. Introducing [33] q = 1 2 (p + p), k = p − p, n = p × p , (2.31) with, of course, n = q × k, we choose for the operators P j in spin space…”

Section: Lippmann-schwinger Equationmentioning

confidence: 99%

Extended-soft-core baryon-baryon model. I. Nucleon-nucleon scattering with the ESC04 interaction

Rijken

2006

Phys. Rev. C

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“…Because of rotational invariance and parity conservation, the potential can be expanded into the following set of 8 spinor invariants, see for example [38,39]. Introducing…”

Section: B Partial Wave Projectionmentioning

confidence: 99%

Hyperon–nucleon interactions—a chiral effective field theory approach

2006

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“…It has been known for a long time [19] that the available data do not allow for a unique effective range analysis. This is due (apart from the large error bars) to the absence of truly low-energy cross sections.…”

Section: A the Two-body Subsystemsmentioning

confidence: 99%

Strange tribaryons

et al. 2006

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We use two-body potentials derived from a constituent quark cluster model to analyze the bound-state problem of the ΣN N system. The observables of the two-body subsystems, N N and ΣN , are well reproduced. We do not find ΣN N bound states, but there are two attractive channels with a resonance close above the three-body threshold. These channels are the (I, J) = (1, 1/2) and (0, 1/2), their quantum numbers, widths and energy ordering consistent with the recently measured strange tribaryons from the 4 He(K

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Hyperon-nucleon interaction

Cited by 46 publications

References 66 publications

Extended-soft-core baryon-baryon model. I. Nucleon-nucleon scattering with the ESC04 interaction

Extended-soft-core baryon-baryon model. I. Nucleon-nucleon scattering with the ESC04 interaction

Hyperon–nucleon interactions—a chiral effective field theory approach

Strange tribaryons

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