Recent results related to excited states of 6Be and 10He
Paper i proceeding, 2012

The 1H(6Li,6Be)n charge-exchange reaction and the 3H(8He, p)10He two-neutron transfer reaction were recently carried out at the ACCULINNA fragment separator (FLNR, Dubna) to populate the ground and excited states of 6Be and 10He nuclei, respectively. The 6Be ET spectrum (ET is the 6Be energy above its 4He+p+p decay threshold) was obtained with high statistics and described by the well-known 0+ ground state of 6Be at ET = 1.37 MeV, the 2+ state at ET = 3.05 MeV and a broad structure extending from 4 to 16 MeV which could be interpreted as the isovector soft dipole mode associated with the 6Li ground state. In the 10He case the 0+ ground state was found at about 2.1(2) MeV (T ∼ 2 MeV) above the 8He+n+n breakup threshold. Angular correlations observed for 10He decay products show prominent interference patterns allowing to draw conclusions about the structure of low-energy excited states: 1- (E T ∼ 5 MeV) and 2+ (ET > 6 MeV).

Författare

A. S. Fomichev

Joint Institute for Nuclear Research

A.A. Bezbakh

Joint Institute for Nuclear Research

V. Chudoba

Slezska univerzita v Opave

Joint Institute for Nuclear Research

I. A. Egorova

Joint Institute for Nuclear Research

S.N. Ershov

Joint Institute for Nuclear Research

M. S. Golovkov

Joint Institute for Nuclear Research

A. V. Gorshkov

Joint Institute for Nuclear Research

L.V. Grigorenko

Joint Institute for Nuclear Research

GSI Helmholtzzentrum für Schwerionenforschung

National Research Centre "Kurchatov Institute"

P. Jalůvková

Slezska univerzita v Opave

Joint Institute for Nuclear Research

G. Kaminski

Joint Institute for Nuclear Research

Henryk Niewodniczanski Institute of Nuclear Physics of the Polish Academy of Sciences

S. A. Krupko

Joint Institute for Nuclear Research

E.A. Kuzmin

National Research Centre "Kurchatov Institute"

E.Y. Nikolskii

RIKEN

National Research Centre "Kurchatov Institute"

I. G. Mukha

GSI Helmholtzzentrum für Schwerionenforschung

Y. L. Parfenova

Joint Institute for Nuclear Research

P.G. Sharov

Joint Institute for Nuclear Research

S. I. Sidorchuk

Joint Institute for Nuclear Research

R. S. Slepnev

Joint Institute for Nuclear Research

S. V. Stepantsov

Joint Institute for Nuclear Research

G. M. Ter-Akopian

Joint Institute for Nuclear Research

R. Wolski

Henryk Niewodniczanski Institute of Nuclear Physics of the Polish Academy of Sciences

Joint Institute for Nuclear Research

Mikhail Zhukov

Chalmers, Teknisk fysik, Subatomär fysik

A.A. Yukhimchuk

All-Russian Research Institute of Experimental Physics

S.V. Filchagin

All-Russian Research Institute of Experimental Physics

A.A. Kirdyashkin

All-Russian Research Institute of Experimental Physics

I.P. Maksimkin

All-Russian Research Institute of Experimental Physics

O.P. Vikhlyantsev

All-Russian Research Institute of Experimental Physics

EPJ Web of Conferences

21016275 (ISSN) 2100014X (eISSN)

Vol. 38 Art. no. 15002- 15002

Ämneskategorier

Fysik

DOI

10.1051/epjconf/20123815002