Fate of the charm baryon 
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 in cold and hot nuclear matter

Yasui, Shigehiro

doi:10.1103/physrevc.100.065201

Cited by 7 publications

(8 citation statements)

References 75 publications

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“…The prospect of an ample production of baryons with charm offered by facilities such as the LHC at CERN [1][2][3], RHIC at BNL [4], J-PARC and KEK in Japan [5,6], or FAIR in Germany [7][8][9] has led to a renewed interest in the in-medium properties of such baryons [10][11][12][13] and also in the question whether they, and notably the lightest charmed baryon, the Λ c (2286), could form bound states with ordinary matter [14][15][16][17][18][19]. In fact, there is a long history of speculations about possible bound systems involving the Λ c [20][21][22][23][24][25][26][27][28][29][30][31][32][33][34][35][36] that started soon after the discovery of charmed baryons [37,38] (see also the recent reviews [39,40]).…”

Section: Introductionmentioning

confidence: 99%

Predictions for charmed nuclei based on $$Y_c N$$ forces inferred from lattice QCD simulations

2020

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Charmed nuclei are investigated utilizing $$\varLambda _c N$$ Λ c N and $$\varSigma _c N$$ Σ c N interactions that have been extrapolated from lattice QCD simulations at unphysical masses of $$m_\pi = 410$$ m π = 410 –570 MeV to the physical point using chiral effective field theory as guideline. Calculations of the energies of $$\varLambda _c$$ Λ c single-particle bound states for various charmed nuclei from $$^{\ 5}_{\varLambda _c}$$ Λ c 5 Li to $$^{209}_{\varLambda _c}$$ Λ c 209 Bi are performed using a perturbative many-body approach. This approach allows one to determine the finite nuclei $$\varLambda _c$$ Λ c self-energy from which the energies of the different bound states can be obtained. Though the $$\varLambda _c N$$ Λ c N interaction inferred from the lattice results is only moderately attractive, it supports the existence of charmed nuclei. Already the lightest nucleus considered is found to be bound. The spin-orbit splitting of the p- and d-wave states turns out to be small, as in the case of single $$\varLambda $$ Λ hypernuclei. Additional calculations based on the Faddeev-Yakubovsky equations suggest that also $$A=4$$ A = 4 systems involving a $$\varLambda _c$$ Λ c baryon are likely to be bound, but exclude a bound $$^{\, 3}_{\varLambda _c}\hbox {He}$$ Λ c 3 He state.

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Section: Introductionmentioning

confidence: 99%

Predictions for charmed nuclei based on $$Y_c N$$ forces inferred from lattice QCD simulations

2020

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“…Λc Li, 13 Λc N , 17 Λc F, 41 Λc Sc, 91 Λc Nb and 209 Λc Bi are summarized in Table 4 for the Λ c N interaction from Ref. [49] and the two potentials Y c N -A and Y c N -B with inclusion of a direct Σ c N interaction.…”

Section: Results Formentioning

confidence: 99%

“…The prospect of an ample production of baryons with charm offered by facilities such as the LHC at CERN [1][2][3], RHIC at BNL [4], J-PARC and KEK in Japan [5,6], or FAIR in Germany [7][8][9] has led to a renewed interest in the in-medium properties of such baryons [10][11][12][13] and also in the question whether they, and notably the lightest charmed baryon, the Λ c (2286), could form bound states with ordinary matter [14][15][16][17][18][19]. In fact, there is a long history of speculations about possible bound systems involving the Λ c [20][21][22][23][24][25][26][27][28][29][30][31][32][33][34][35] that started soon after the discovery of charmed baryons [36,37] (see also the recent reviews [38,39]).…”

Section: Introductionmentioning

confidence: 99%

Predictions for charmed nuclei based on $Y_c N$ forces inferred from lattice QCD simulations

Haidenbauer,

Nogga,

Vidaña

2020

Preprint

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Charmed nuclei are investigated utilizing ΛcN and ΣcN interactions that have been extrapolated from lattice QCD simulations at unphysical masses of mπ = 410-570 MeV to the physical point using chiral effective field theory as guideline. Calculations of the energies of Λc single-particle bound states for various charmed nuclei from 5Λc Li to 209 Λc Bi are performed using a perturbative many-body approach. This approach allows one to determine the finite nuclei Λc self-energy from which the energies of the different bound states can be obtained. Though the ΛcN interaction inferred from the lattice results is only moderately attractive, it supports the existence of charmed nuclei. Already the lightest nucleus considered is found to be bound. The spin-orbit splitting of the p-and d-wave states turns out to be small, as in the case of single Λ hypernuclei. Additional calculations based on the Faddeev-Yakubovsky equations suggest that also A = 4 systems involving a Λc baryon are likely to be bound, but exclude a bound 3 Λc He state.

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“…Recently, interest in heavy hadrons was renewed as the experiments on them including exotic heavy hadrons have yielded unprecedented findings [18][19][20][21][22] (see a recent review for the status of experiments on nonstandard heavy hadrons [23]). This has also triggered the investigation on heavy baryons in nuclear matter [24][25][26][27][28][29] (see also a review [30]). Since there are no experimental data on how the heavy baryons undergo changes in nuclear medium and in nuclei, it is of great importance to study the medium modification of them theoretically to guide future experiments.…”

Section: Introductionmentioning

confidence: 99%

Singly heavy baryons in nuclear matter from an SU(3) chiral soliton model

Won,

Yakhshiev,

Kim

2021

Preprint

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We investigate how the masses of the singly heavy baryons undergo changes in nuclear matter, based on a medium-modified SU(3) chiral soliton model. Having explained the bulk properties of nuclear matter, we discuss the masses of the singly heavy baryons in nuclear matter. We generalize the vector-meson Lagrangian including the heavy-meson soliton interaction. The mass spectrum of the singly heavy baryon are obtained with the effects of explicit SU(3) symmetry breaking considered as a perturbation. The results show that the mass of the singly heavy baryon mass in nuclear medium is rather sensitive to the medium modifications of the heavy meson mass.

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Fate of the charm baryon Λc in cold and hot nuclear matter

Cited by 7 publications

References 75 publications

Predictions for charmed nuclei based on $$Y_c N$$ forces inferred from lattice QCD simulations

Predictions for charmed nuclei based on $$Y_c N$$ forces inferred from lattice QCD simulations

Predictions for charmed nuclei based on $Y_c N$ forces inferred from lattice QCD simulations

Singly heavy baryons in nuclear matter from an SU(3) chiral soliton model

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