Determination of neutron halo radii in the first excited states ofC13andBe11with the asymptotic normalization coefficients method

2014 ◽  
Vol 90 (6) ◽  
Author(s):  
T. L. Belyaeva ◽  
R. Perez-Torres ◽  
A. A. Ogloblin ◽  
A. S. Demyanova ◽  
S. N. Ershov ◽  
...  
Keyword(s):  
Excited States ◽  
Neutron Halo ◽  
Asymptotic Normalization ◽  
Asymptotic Normalization Coefficients

Asymptotic normalization coefficients and neutron halo of the excited states in12Band13C

2001 ◽  
Vol 64 (3) ◽  
Author(s):  
Z. H. Liu ◽  
C. J. Lin ◽  
H. Q. Zhang ◽  
Z. C. Li ◽  
J. S. Zhang ◽  
...  
Keyword(s):  
Excited States ◽  
Neutron Halo ◽  
Asymptotic Normalization ◽  
Asymptotic Normalization Coefficients

scholarly journals Neutron Halos in Excited States of 12B

KnE Energy ◽  
2018 ◽  
Vol 3 (1) ◽  
pp. 83
Author(s):  
A Danilov ◽  
A Demyanova ◽  
A Ogloblin ◽  
T Belyaeva ◽  
S Goncharov ◽  
...  
Keyword(s):  
Excited States ◽  
Cross Sections ◽  
Valence Neutron ◽  
Unexpected Result ◽  
Neutron Halo ◽  
Asymptotic Normalization ◽  
Rotational Bands ◽  
Decay Threshold ◽  
The University ◽  
Scattering Chamber

An experiment was done to search for states with a neutron halo in 12B. The measurements were carried out at the cyclotron of the University of Jyvaskyla (Finland) using Large Scattering Chamber (LSC). The idea of the work was to search for two states with the expected neutron halo, 1 ̄ and 2 ̄. Differential cross sections with excitation of 12B states, including abovementioned states, were observed. The preliminary calculations on halo radii by the method of asymptotic normalization coefficients for the 2 ̄ and 1 ̄ states which are in a discrete spectrum gave following values: 5.6 fm and 7.4 fm, which is much larger than the radius of the valence neutron in the ground state. But strictly the presence of a neutron halo can be confirmed only for 1 ̄ state. The 2 ̄ state can be considered only as candidate for halo. An unexpected result was obtained for the 3 ̄, 3.39 MeV state, which is in continuum 19 keV above the decay threshold 12B → 11B + n, preliminary estimation for its halo radius is ∼ 6.5 fm. This indicates that the halo can be present in this state as well. But strict conditions for neutron halo are not fulfilled in the same way as for 2 ̄ state. Until now, the neutron halo in unbound states has been observed only for the members of the rotational bands.

scholarly journals Neutron asymptotic normalization coefficients and halo radii of the first excited states of13C and11Be

2014 ◽  
Vol 66 ◽  
pp. 03009 ◽  
Author(s):  
T. L. Belyaeva ◽  
R. Perez-Torres ◽  
A. S. Demyanova ◽  
S. A. Goncharov ◽  
A. A. Ogloblin
Keyword(s):  
Excited States ◽  
Asymptotic Normalization ◽  
Asymptotic Normalization Coefficients
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