Evidence for 6ΛH

Abstract

Evidence for the neutron-rich hypernucleus 6ΛH is presented from the FINUDA experiment at DAΦNE, Frascati, studying (π+, π-) pairs in coincidence from the K- +6Li \rightarrow 6 H+π+ production reaction followed by 6ΛH \rightarrow 6He + π- weak decay. The production rate of 6ΛH undergoing this two-body π- decay is determined to be (2.9\pm2.0)\cdot10-6/K-. Its binding energy, evaluated jointly from production and decay, is BΛ(6ΛH) = (4.0\pm1.1) MeV with respect to 5H+Λ. A systematic difference of (0.98 \pm 0.74) MeV between BΛ values derived separately from decay and from production is tentatively assigned to the 6ΛH 0+g.s. \rightarrow 1+ excitation.

5 pages, 3 figures

References in corpus (2)

• Hypernuclear Physics for Neutron Stars
• The $A(K_{stop}^{-},{\pi }^{\pm }{\Sigma }^{\mp })A^{\prime }$ reaction on p-shell nuclei

Cited by in corpus (25)

• Equations of state for supernovae and compact stars
• Strangeness in nuclear physics
• Strangeness in Nuclei and Neutron Stars
• Accurate determination of the interaction between $\Lambda$ hyperons and nucleons from auxiliary field diffusion Monte Carlo calculations
• Halos and related structures
• Strangeness nuclear physics: a critical review on selected topics
• Three-body structure of the $nn\Lambda$ system with $\Lambda N-\Sigma N$ coupling
• On the Binding Energy and the Charge Symmetry Breaking in A<=16 Lambda-hypernuclei
• Search for ${}_{\Lambda }^6$H hypernucleus by the ${}^6$Li$({\pi }^{-},K^{+})$ reaction at $p_{{\pi }^{-}}$ = 1.2 GeV/$c$
• First observation of the hyper superheavy hydrogen 6ΛH
• Neutron-rich hypernuclei: Lambda-6H and beyond
• Four-body structure of neutron-rich hypernucleus ${}_{\Lambda }^6$H
• Hadron Physics at J-PARC
• Missing-mass spectroscopy with the ${}^6$Li(${\pi }^{-},K^{+}$)X reaction to search for ${}_{\Lambda }^6$H
• Novel method for producing very-neutron-rich hypernuclei via charge-exchange reactions with heavy ion projectiles
• Comparative aspects of spin-dependent interaction potentials for spin-1/2 and spin-1 matter fields
• Production of light hypernuclei with light-ion beams and targets
• Spectroscopy of $A=9$ hyperlithium by the $(e,e^{\prime }{K}^{+})$ reaction
• Auxiliary Field Diffusion Monte Carlo study of the Hyperon-Nucleon interaction in $\Lambda$-hypernuclei
• Search for the neutron-rich hypernucleus 9ΛHe
• Experimental nuclear astrophysics in Italy
• Low-lying hypernuclei in the relativistic quark-gluon model
• Modeling of ${}_{\Lambda }^6$He hypernucleus within configuration space Faddeev approach
• Effects of isovector scalar $\delta$-meson on hypernuclei
• Neutron Rich Hypernuclei in Chiral Soliton Model