14th Nordic Meeting on Nuclear Physics

Session

Poster session

22 May 2018, 16:00

UNIS

42. Improvements to Fission Modeling and Evaluations Using Delayed Gamma Ray Modeling with FIER

Eric F Matthews (University of California - Berkeley)

Poster

Several recent forums have highlighted the need for a new fission product yield (FPY) evaluation for a wide variety of applied nuclear science and engineering applications. However, since most measurements of FPYs are made through the observation of decay radiations, any new FPY evaluation requires an integral validation which convolves both FPY and the relevant decay data. FIER is a software...

49. Mass shift of charmonium states in $\bar p A$ collision

Gyorgy Wolf (Wigner FK)

Poster

The masses of the low lying charmonium states, namely, the $J/\Psi$, $\Psi(3686)$, and $\Psi(3770)$ are shifted downwards due to the second order Stark effect. In $\bar p + \text{Au}$ collisions at $6-10$~GeV we study their in-medium propagation. The time evolution of the spectral functions of these charmonium states is studied with a Boltzmann-Uehling-Uhlenbeck (BUU) type transport model. We...

51. Measuring La(p,x) Cross Sections from 35-60 MeV by Stacked Foil Activation

Jonathan Morrell (University of California, Berkeley)

Poster

In this experiment we use the stacked foil activation technique to measure cross sections for the $^{nat}$La(p,x) reaction, with proton energies in the 35-60 MeV range. The primary motivation for this measurement is to quantify the production of $^{134}$Ce, a positron-emitting analogue of the medical isotope $^{225}$Ac, which has applications for kinetic bio-distribution assays of new...

44. Optical potential and knockout reactions

Dr Andrea Idini (Lund University)

Poster

This presentation will show results of nucleon scattering and knockout reactions on medium-mass nuclei making use of optical potentials derived consistently from ab-initio Self Consistent Green Function (SCGF) with saturating Chiral Effective Field Theory ($\chi$-EFT) interaction.

The properties of this self-energy will be discussed in the context of elastic scattering on Ni, Ca and O...

3. Probing TeV physics with precision calculations of nucleon Structure using lattice QCD

Dr Rajan Gupta (Los Alamos National Lab)

Poster

This talk will present a number of high precision results on matrix
elements of quark bilinear operators between nucleon states using
lattice QCD. From these, we extract a number of exciting quantities,
at the intersection of nuclear and particle physics. We show that the
axial charge $g_A$, a fundamental parameter encapsulating the weak
interaction of nucleons, is calculated with a few...

41. Relativistic studies of three-body systems within the Bethe-Salpeter approach

Jorge Nogueira (Instituto Tecnológico de Aeronáutica and 'Sapienza' Università di Roma)

Poster

The influence of relativistic effects on the stability of three-body systems is of great interest.
From a general point of view, understanding the interaction in terms of the fundamental degrees of freedom is very important for nuclear and particle non-perturbative physics. Since that is a very difficult problem, simple models are of great value for understanding the crucial qualitative...

54. Shell Evolution Towards 78Ni: Spectroscopy of 76Cu

Line Pedersen

Poster

How well the nuclear shell model fits for very unstable neutron rich nuclei, is an important question which will help us see whether we have fully understood the neutron-proton interactions that happen within the nucleus. One way to investigate this is to carefully study the energy levels and shell gaps in nuclei close to doubly magic 78Ni. The aim of the present work is to contribute to the...

47. The Multi-Blade $^{10}B$-based neutron detector

Francesco Messi (Lund University)

Poster

The Multi-Blade is a $^{10}B$-based gaseous detector conceived to face the neutron-reflectometry challenge to be presented by the European Spallation Source (ESS), where the instantaneous neutron flux on detectors will be without precedent. Reflectometry instruments in particular require high count-rate capability and excellent spatial resolution.
The detector consists of a stack of Multi Wire...

50. The study and parametrization of longitudinal profiles of gamma ray showers using simulations for Imaging Atmospheric Cherenkov Telescope array

Ms Sarah Nasim (Institute of Space Technology)

Poster

Abstract—Gamma-ray astronomy is the study of astronomical objects using the most energetic form of electromagnetic radiation, gamma-rays. Some of the most violent phenomena in the cosmos emit gamma-rays. This study deals with the detection of high-energy gamma-ray showers using ground-based telescopes. These gamma-rays, upon reaching the Earth’s atmosphere create a cascade of particles,...