Recalibration of the binding energy of hypernuclei measured in emulsion experiments and its implications

Abstract

The $\Lambda$ separation energy for $\Lambda$-hypernuclei, denoted $B_{\Lambda }$, measured in 1967, 1968, and 1973 are recalibrated using the current best mass estimates for particles and nuclei. The recalibrated $B_{\Lambda }$ are systematically larger (except in the case of ${}_{\Lambda }^6$He) than the original published values by about 100 keV. The effect of this level of recalibration is very important for light hypernuclei, especially for the hypertriton. The early $B_{\Lambda }$ values measured in 1967, 1968, and 1973 are widely used in theoretical research, and the new results provide better constraints on the conclusions from such studies.

To be published in Chinese Physics C

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Cited by in corpus (6)

• Measurements of ${}_{\Lambda }^3\mathrm{H}$ and ${}_{\Lambda }^4\mathrm{H}$ Lifetimes and Yields in Au+Au Collisions in the High Baryon Density Region
• Measurement of ${}_{\mathrm{\Lambda }}^4\mathrm{H}$ and ${}_{\mathrm{\Lambda }}^4\mathrm{He}$ binding energy in Au+Au collisions at $\sqrt{s_{\mathrm{NN}}}$ = 3 GeV
• Yield ratio of hypertriton to light nuclei in heavy-ion collisions from $\sqrt{{\mathrm{s}}_{\mathrm{NN}}}$ = 4.9 GeV to 2.76 TeV
• Network structure of thermonuclear reactions in nuclear landscape
• Reaction rate weighted multilayer nuclear reaction network
• Hypernuclei and Antihypernuclei Production in Heavy-Ion Collisions