Strange and heavy flavoured hypernuclei in chiral soliton models

Kopeliovich, V.B.; Shunderuk, A. M.

doi:10.1140/epja/i2007-10466-6

Cited by 10 publications

(7 citation statements)

References 22 publications

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“…The experiments for searching charmed hypernuclei are becoming realistic and may be performed in coming years at Hall C of JPARC [12], at the FAIR experiment [13], or at the SuperB collider [14]. All these experimental prospects have reinvigorated twenty years later the study of charmed hypernuclei [15][16][17] and also more recently theoretical studies of charmed dibaryons [18,19]. We show in 2 ) feasible at modern factories, that has been proposed to study the existence of charmed hypernuclei at JPARC [12].…”

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confidence: 88%

J=3/2charmed hypertriton

2015

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By solving exact three-body equations, we study the three-baryon system with charm +1. We look for possible bound states using baryon-baryon interactions obtained from a chiral constituent quark model. The smaller effect of the Λ c ↔ Σ c conversion reverses the order of the (I, J) = (0, 1/2) and (I, J) = (0, 3/2) states, rather close on the strange sector. The diminishing of the kinetic energy due to the large reduced mass gives rise to a bound state in the (I, J) = (0, 3/2) channel. After correcting for Coulomb effects the binding energy would be between 140 and 715 keV.

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confidence: 88%

J=3/2charmed hypertriton

2015

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“…Indeed, the understanding of the flavor dependence of hadron-hadron forces is a key element in the study of charmed dibaryons [3] and exotic hadronic molecules [4]. The lack of knowledge on the Y c N interaction also hinders progress in the long-standing a e-mail: j.haidenbauer@fz-juelich.de (corresponding author) issue regarding the existence of charmed nuclei [5][6][7][8][9][10][11][12][13][14][15][16][17][18][19][20][21][22]-for recent reviews see [23][24][25]. These are nuclei containing a Y c hyperon, similar to the more familiar hypernuclei which are formed with a strange baryon, Λ and/or Σ (Y ).…”

Section: Introductionmentioning

confidence: 99%

Femtoscopic correlations and the $$\varLambda _c N$$ interaction

2020

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We study the prospects for deducing constraints on the interaction of charmed baryons with nucleons from measurements of two-particle momentum correlation functions for Λ c p. The correlation functions are calculated for Λ c N and Σ c N interactions that have been extrapolated from lattice QCD simulations at unphysical masses of m π = 410 − 570 MeV to the physical point using chiral effective field theory as guideline. In addition, we consider phenomenological Y c N models from the literature to explore the sensitivity of the results to the properties of the interaction in detail. We find that a measurement of the Λ c p correlation functions could indeed allow one to discriminate between strongly attractive Λ c N forces, as predicted by some phenomenological models, and a weakly attractive interaction as suggested by the presently available lattice simulations.

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“…This resulted in several theoretical estimates about the binding energy and the potential-well depth of charmed hypernuclei based on one-boson exchange potentials for the charmed baryon−nucleon interaction [18][19][20][21][22]. The current experimental prospects have reinvigorated studies of the low-energy Y c N interactions [23][24][25][26][27][28][29][30][31][32]. See also the recent reviews [33,34].…”

Section: Introductionmentioning

confidence: 99%

Charmed baryon–nucleon interaction

2019

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We present a comparative study of the charmed baryon−nucleon interaction based on different theoretical approaches. For this purpose, we make use of i) a constituent quark model tuned in the light-flavor baryon−baryon interaction and the hadron spectra, ii) existing results in the literature based both on hadronic and quark-level descriptions, iii) (2+1)-flavor lattice QCD results of the HAL QCD Collaboration at unphysical pion masses and their effective field theory extrapolation to the physical pion mass. There is a general qualitative agreement among the different available approaches to the charmed baryon−nucleon interaction. Different from hadronic models based on one-boson exchange potentials, quark−model based results point to soft interactions without twobody bound states. They also support a negligible channel coupling, due either to tensor forces or to transitions between different physical channels, Λ c N − Σ c N . Short-range gluon and quarkexchange dynamics generate a slightly larger repulsion in the 1 S 0 than in the 3 S 1 Λ c N partial wave.A similar asymmetry between the attraction in the two S waves of the Λ c N interaction also appears in hadronic approaches. A comparative detailed study of Pauli suppressed partial waves, as the 1 S 0 (I = 1/2) and 3 S 1 (I = 3/2) Σ c N channels, would help to disentangle the short-range dynamics of two-baryon systems containing heavy flavors. The possible existence of charmed hypernuclei is discussed. * Electronic address: humberto@esfm.ipn.mx † Electronic address: valcarce@usal.es ‡ Electronic address: carames@usal.es

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Strange and heavy flavoured hypernuclei in chiral soliton models

Cited by 10 publications

References 22 publications

J=3/2charmed hypertriton

J=3/2charmed hypertriton

Femtoscopic correlations and the $$\varLambda _c N$$ interaction

Charmed baryon–nucleon interaction

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