The NΛΛ - ΞnN bound state problem

H. Garcilazo, A. Valcarce, T. F. Caramés

Research output: Contribution to journalArticle

4 Citations (Scopus)

Abstract

© 2014 IOP Publishing Ltd. We use a diagrammatic method to derive the Faddeev equations of the coupled NΛΛ-ΞNN system and apply them to the bound-state problem of the channel. We use as input the nucleon-nucleon, nucleon-hyperon and hyperon-hyperon interactions obtained from a chiral constituent quark model. We explore different parametrizations of the quark-quark interacting potential. While the system alone is unbound, the full coupled channel problem NΛΛ-ΞNN may present a three-baryon bound state just below threshold. Different from double- hypernuclei with four nucleons or more, where the Pauli principle acts strongly because there is no room for more that four nucleons in S wave, in H the full interaction can act in S wave.
Original languageAmerican English
JournalJournal of Physics G: Nuclear and Particle Physics
DOIs
StatePublished - 1 Sep 2014

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nucleons
S waves
quarks
Faddeev equations
hypernuclei
quark models
rooms
baryons
interactions
thresholds

Cite this

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The NΛΛ - ΞnN bound state problem. / Garcilazo, H.; Valcarce, A.; Caramés, T. F.

In: Journal of Physics G: Nuclear and Particle Physics, 01.09.2014.

Research output: Contribution to journalArticle

TY - JOUR

T1 - The NΛΛ - ΞnN bound state problem

AU - Garcilazo, H.

AU - Valcarce, A.

AU - Caramés, T. F.

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AB - © 2014 IOP Publishing Ltd. We use a diagrammatic method to derive the Faddeev equations of the coupled NΛΛ-ΞNN system and apply them to the bound-state problem of the channel. We use as input the nucleon-nucleon, nucleon-hyperon and hyperon-hyperon interactions obtained from a chiral constituent quark model. We explore different parametrizations of the quark-quark interacting potential. While the system alone is unbound, the full coupled channel problem NΛΛ-ΞNN may present a three-baryon bound state just below threshold. Different from double- hypernuclei with four nucleons or more, where the Pauli principle acts strongly because there is no room for more that four nucleons in S wave, in H the full interaction can act in S wave.

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