A=4−7 Ξ hypernuclei based on interactions from chiral effective field theory
Pre-published on:
February 07, 2024
Published on:
March 07, 2024
Abstract
In this contribution, we report on an investigation of the possible existence of bound Ξ states in systems with A=4−7 baryons using the Jacobi NCSM approach in combination with chiral NN and ΞN interactions. Three shallow bound states for the NNNΞ system (with (Jπ,T)=(1+,0), (0+,1) and (1+,1)) with quite similar binding energies are found. The 5ΞH(12+,12) and 7ΞH(12+,32) hypernuclei are also clearly bound with respect to the thresholds 4He+Ξ and 6He+Ξ, respectively. It is also found that the binding of these systems is predominantly due the attraction of the chiral ΞN potential particularly in the 33S1 channel. Furthermore, a perturbative estimate suggests that the decay widths of all the bound states could be small enough for them to be observed in experiment.
DOI: https://doi.org/10.22323/1.413.0086
How to cite
Metadata are provided both in
article format (very
similar to INSPIRE)
as this helps creating very compact bibliographies which
can be beneficial to authors and readers, and in
proceeding format which
is more detailed and complete.