August 23, 2021 to October 7, 2021
Venue: OAC conference center, Kolymbari, Crete, Greece. Participation is possible also via internet.
Europe/Athens timezone

Three-cluster model of $_{\Lambda}^{9}$Be hypernucleus

Sep 1, 2021, 5:00 PM
Room 1

Room 1


Yuliia Lashko (BITP)


We investigate properties of bound and resonance states in the $_{\Lambda}^{9}$Be nucleus. To reveal the nature of these states, we use a three-cluster $2\alpha+\Lambda$ microscopic model. The model treats correctly the Pauli principle and accounts for polarization of two-cluster subsystems of the hypernucleus when the third cluster is close. The model incorporates Gaussian and oscillator basis functions and reduces a three-cluster Schr\"{o}dinger equation to a two-body like many-channel problem with the two-cluster subsystems ($_{\Lambda}^{5}$He and $^8$Be) being in a bound or a pseudo-bound state. Influence of the cluster polarization on the energy and widths of resonance states in $_{\Lambda}^{9}$Be and on elastic and inelastic $_{\Lambda}^{5}$He+$\alpha$ scattering is analysed.


Dr. Yuliia Lashko, Bogolyubov Institute for Theoretical Physics, Kyiv, Ukraine.

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Primary author

Yuliia Lashko (BITP)


Dr Alexander Nesterov (Bogolyubov Institute for Theoretical Physics) Dr Victor Vasilevsky (Bogolyubov Institute for Theoretical Physics)

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