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- W4304192783 abstract "The separation energies of the isospin triplet $^7_Lambdamathrm{He}$, $^7_Lambda mathrm{Li^{*}}$, $^7_Lambda$Be, and the $T=1/2$ doublet $^8_Lambda$Li, $^8_Lambda$Be are investigated within the no-core shell model. Calculations are performed based on a hyperon-nucleon potential derived from chiral effective field theory at next-to-leading order. The potential includes the leading charge-symmetry breaking (CSB) interaction in the $Lambda $N channel, whose strength has been fixed to the experimentally known difference of the $Lambda$ separation energies of the mirror hypernuclei $^4_Lambda mathrm{He}$ and $^4_Lambda mathrm{H}$. It turns out that the CSB predicted for the $A=7$ systems is small and agrees with the splittings deduced from the empirical binding energies within the experimental uncertainty. In case of the $A=8$ doublet, the computed CSB is somewhat larger than the available experimental value. Using other experimental input for $A=4$ can change this prediction moving it closer to experiment." @default.
- W4304192783 created "2022-10-11" @default.
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- W4304192783 date "2022-10-07" @default.
- W4304192783 modified "2023-09-30" @default.
- W4304192783 title "Ab initio calculation of charge symmetry breaking in $A=7$ and $8$ $Lambda$-hypernuclei" @default.
- W4304192783 doi "https://doi.org/10.48550/arxiv.2210.03387" @default.
- W4304192783 hasPublicationYear "2022" @default.
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