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Spectroscopy of the neutron-rich hypernucleus HeΛ7 from electron scattering (CROSBI ID 231235)

Prilog u časopisu | izvorni znanstveni rad | međunarodna recenzija

(HKS (JLab E05-115) Collaboration) Gogami, T. ; ... ; Androić, Darko ; ... ; Furić, Miroslav ; ... ; Petković, Tomislav ; ... ; Ševa, Tomislav ; ... et al. Spectroscopy of the neutron-rich hypernucleus HeΛ7 from electron scattering // Physical review. C, 94 (2016), 2; 021302, 6. doi: 10.1103/PhysRevC.94.021302

Podaci o odgovornosti

Gogami, T. ; ... ; Androić, Darko ; ... ; Furić, Miroslav ; ... ; Petković, Tomislav ; ... ; Ševa, Tomislav ; ... ; Zhu, L.

HKS (JLab E05-115) Collaboration

engleski

Spectroscopy of the neutron-rich hypernucleus HeΛ7 from electron scattering

The missing mass spectroscopy of the HeΛ7 hypernucleus was performed using the Li7(e, e ′K+)HeΛ7 reaction at the Thomas Jefferson National Accelerator Facility Hall C. The Λ- binding energy of the ground-state (1/2+) was determined with a smaller error than that of the previous measurement, being BΛ=5.55±0.10stat.±0.11sys.MeV. The experiment also provided new insight into charge symmetry breaking in p-shell hypernuclear systems. Finally, a peak at BΛ=3.65±0.20stat. ±0.11sys.MeV was observed and assigned as a mixture of 3/2+ and 5/2+ states, confirming the "gluelike" behavior of Λ, which makes an unstable state in He6 stable against neutron emission.

hypernuclei spectroscopy ; Lambda electroproduction ; hypernucleus 7He-Lambda ; Lambda - binding energy ; ground-state mixture ; charge symmetry breaking ; JLab

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Podaci o izdanju

94 (2)

2016.

021302

6

objavljeno

2469-9985

2469-9993

10.1103/PhysRevC.94.021302

Povezanost rada

Elektrotehnika, Fizika, Računarstvo

Poveznice
Indeksiranost