Structure of neutron-rich $\Lambda$ hypernuclei

T.Yu. Tretyakova; D.E. Lanskoy

doi:doi:10.1007/s100500050302

EPJ

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2023 Impact factor 2.6

Hadrons and Nuclei

Eur. Phys. J. A 5, 391-398

Structure of neutron-rich $\Lambda$ hypernuclei

T.Yu. Tretyakova¹ - D.E. Lanskoy²

¹ Frank Laboratory of Neutron Physics, JINR, 141980 Dubna, Russia (e-mail: ttretyak@nf.jinr.ru)
² Institute of Nuclear Physics, Moscow State University, 119899 Moscow, Russia (e-mail: lanskoy@npi.msu.su)

Received: 16 December 1998 Communicated by B. Povh

Abstract
Properties of light neutron-rich $\Lambda$ hypernuclei ( $^{16}_{\Lambda}$ C, $^{12}_{\Lambda}$ Be, and $^{11}_{\Lambda}$ Li) are calculated within the Skyrme-Hartree-Fock approach. Interplay between hypernuclear interaction features and properties of these hypernuclei is studied. Response of weakly bound neutron states to hyperon addition depends generally on core distortion by hyperon, and it is essentially different for the different states. This response is especially sensitive to details of the ${\Lambda}N$ interaction for 1p_1/2 states. Implications of the nuclear spin-orbit potential and nuclear incompressibility in the neutron-rich system properties are inferred. Dependence of the $\Lambda$ binding energies in hypernuclei on Z at fixed A is discussed.

PACS
21.80.+a Hypernuclei - 21.60.Jz Hartree-Fock and random-phase approximations - 21.30.Fe Forces in hadronic systems and effective interactions