Achenbach, P. and Garibaldi, F. and Gogami, T. and Markowitz, P. (2024) The hypernuclear physics program at Jefferson Lab. Il nuovo cimento C, 47 (4). pp. 1-7. ISSN 1826-9885
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Abstract
Missing mass spectroscopy of Λ hypernuclei using the (e, e' K+) reaction has been performed in the past at the Thomas Jefferson National Accelerator Facility (Jefferson Lab) by several experiments in Halls A and C. A new experimental campaign is expected to start running in 2026 in Hall C and to provide the first study of the isospin dependence in medium-mass hyperisotopes by populating 40 Λ K and 48 Λ K using isotopically enriched calcium targets [E12-15-008]. During this campaign, it will be possible to study Λ interactions in nuclear matter using a lead target [E12-20-013]. Solid-state targets made of lithium, beryllium, boron [LOI12-23-013], and aluminum [LOI12-23-016] are considered to be included in the campaign. The use of the HKS and HES spectrometers together with thin target foils and high beam currents leads to a sub-MeV energy resolution, significantly better than in hadron beam experiments. Valuable information on few-body hyperon systems would be gained if helium targets were used [E12-19-002]. Using an additional spectrometer for measuring the decay-pion spectra could give access to the binding energies of light hyperfragments [LOI12-23-011]. The measurement of precise and accurate energy spectra of different hyperisotopes probes the Λ-N interaction in nuclei including the Λ-N-N interaction. The latter is assumed to play a key role for the stiffness of the nuclear equation of state relevant for the stability of neutron stars.
| Item Type: | Article |
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| Subjects: | 500 Scienze naturali e Matematica > 530 Fisica |
| Depositing User: | Marina Spanti |
| Date Deposited: | 15 Oct 2024 10:16 |
| Last Modified: | 15 Oct 2024 10:16 |
| URI: | http://eprints.bice.rm.cnr.it/id/eprint/23209 |
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