Ab-initio calculations of charge symmetry breaking in the A=4 hypernuclei

Abstract

We report on ab-initio NCSM calculations of the A=4 mirror Lambda hypernuclei Lambda-4H and Lambda-4He, using the Bonn-Juelich LO chiral EFT YN potentials plus a CSB Lambda0--Sigma0 mixing vertex. In addition to reproducing rather well the 0+ (g.s.) and 1+ (exc.) binding energies, these four-body calculations demonstrate for the first time that the observed CSB splitting of mirror levels, reaching hundreds of keV for 0+ (g.s.), can be reproduced using realistic theoretical interaction models, although with a non-negligible momentum cutoff dependence. Our results are discussed in relation to recent measurements of the Lambda-4H (0+ g.s.) binding energy [MAMI A1 Collaboration, Phys. Rev. Lett. 114, 232501 (2015)] and the Lambda-4He (1+ exc.) excitation energy [J-PARC E13 Collaboration, Phys. Rev. Lett. 115, 222501 (2015)].

arXiv commentv4 matches PRL publication, also updating Ref. [30], with more details and further discussion relegated to arXiv:1604.03434

References in corpus (19)

• Accurate Charge-Dependent Nucleon-Nucleon Potential at Fourth Order of Chiral Perturbation Theory
• Soft-core hyperon-nucleon potentials
• Ab initio calculation of the neutron-proton mass difference
• Hyperon-nucleon interaction at next-to-leading order in chiral effective field theory
• Local three-nucleon interaction from chiral effective field theory
• Hyperon-nucleon interactions - a chiral effective field theory approach
• Few-nucleon systems in translationally invariant harmonic oscillator basis
• Baryon-baryon interactions in the SU6 quark model and their applications to light nuclear systems
• The Hypernuclei ${}_{\Lambda }^4$He and ${}_{\Lambda }^4$H: Challenges for Modern Hyperon-Nucleon Forces
• Charge Symmetry Breaking and QCD
• Ab initio approach to s-shell hypernuclei 3H_Lambda, 4H_Lambda, 4He_Lambda and 5He_Lambda with a Lambda N-Sigma N interaction
• Observation of Lambda H-4 hyperhydrogen by decay-pion spectroscopy in electron scattering
• Observation of Spin-Dependent Charge Symmetry Breaking in $\Lambda N$ Interaction: Gamma-Ray Spectroscopy of ${}_{\Lambda }^4$He
• Nucleon-Nucleon Scattering Parameters in the Limit of SU(3) Flavor Symmetry
• Ab Initio Description of p-Shell Hypernuclei
• `` $\Lambda -\Sigma$ conversion in ${}_{\Lambda }^4$He and ${}_{\Lambda }^4$H based on four-body calculation
• Charge symmetry breaking in $\Lambda$ hypernuclei revisited
• Leading three-baryon forces from SU(3) chiral effective field theory
• No-Core Shell Model for Nuclear Systems with Strangeness

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