Nuclear Structure and Dynamics - NSD 2019

Session

Session III

3

13 May 2019, 15:00

Venice, Centro Culturale Don Orione Artigianelli

Conveners

Session III: Session III

• Wilton Catford (University of Surrey)

16. An Analysis of the 18g,m F (d,p)19F Reactions in the Rotational Model*

Augusto Macchiavelli (Lawrence Berkeley National Laboratory)

13/05/2019, 15:00

Invited

In this work we discuss the results of a recent HELIOS [1] measurement of the (d,p) reaction on 18F, from both the ground (1+ ) and isomeric (5+) states, to the members of the 19F ground-state band [2] in the rotational model

We consider the structure of 18,19F in terms of Nilsson single-particle orbits originating from the sd spherical levels coupled to a deformed core, and calculate the...

29. Halo and unbound light nuclei from ab initio theory

Dr Petr Navratil (TRIUMF)

13/05/2019, 15:30

Oral

In recent years, significant progress has been made in ab initio nuclear structure and reaction calculations based on input from QCD employing Hamiltonians constructed within chiral effective field theory. One of the modern approaches is the No-Core Shell Model with Continuum (NCSMC) [1,2], capable of describing both bound and scattering states in light nuclei simultaneously. We will present...

44. Analysis of excited states in 13C and their cluster structure

Dr Ivano Lombardo (INFN - Sezione di Catania)

13/05/2019, 15:50

Oral

Accurate studies on 13C spectroscopy have great impact in the present understanding of the role played by extra-neutrons in stabilizing alpha-cluster structures formed in light nuclei. 13C excited states are in fact the simplest systems that can be formed by adding a neutron to a triple-alpha molecular-like structure. Their spectroscopic properties are therefore a fundamental benchmark for...

78. Neutron Interaction With 7Be at the SARAF: Evidence for Cluster Shell Model p-h States in 8Be and Implication for Big Bang Nucleosynthesis.

Moshe Gai (University of Connecticut)

13/05/2019, 16:10

Oral

The interaction of neutrons with 7Be that was measured at the SARAF in Israel with a quasi-Maxwellian neutron beam at 49.5 keV reveals a strong B(E1: 2- ---> 2+) ~ 0.04 W.u., decay of the 2- state at 18.91 MeV in 8Be to the alpha-cluster 2+ state at 3.03 MeV [1]. This strong E1 decay leads to large cross section of the 7Be(n,g_1)*8Be(3.03) reaction at the “BBN window". It implies s-waves...