scholarly journals Light nuclei in the hadron resonance gas

2020 ◽  
Vol 29 (05) ◽  
pp. 2040001 ◽  
Author(s):  
Benjamin Dönigus

The description of the production of light (anti-)(hyper-)nuclei in a hadron resonance gas, or statistical-thermal model approach, has proven to be rather successful, despite the fact that the binding energies of these compound objects are small compared to the emitting fireball temperature. We summarize some recent developments and findings in this approach.

2019 ◽  
Vol 69 (1) ◽  
pp. 279-305 ◽  
Author(s):  
J.E. Lynn ◽  
I. Tews ◽  
S. Gandolfi ◽  
A. Lovato

In recent years, the combination of precise quantum Monte Carlo (QMC) methods with realistic nuclear interactions and consistent electroweak currents, in particular those constructed within effective field theories (EFTs), has led to new insights in light and medium-mass nuclei, neutron matter, and electroweak reactions. For example, with the same chiral interactions, QMC calculations can reproduce binding energies and radii for light nuclei, n–α scattering phase shifts, and the neutron matter equation of state. This compelling new body of work has been made possible both by advances in QMC methods for nuclear physics, which push the bounds of applicability to heavier nuclei and to asymmetric nuclear matter, and by the development of local chiral EFT interactions up to next-to-next-to-leading order and minimally nonlocal interactions including Δ degrees of freedom. In this review, we discuss these recent developments and give an overview of the exciting results for nuclei, neutron matter and neutron stars, and electroweak reactions.


2021 ◽  
Vol 68 (4) ◽  
pp. 2919-2930 ◽  
Author(s):  
Hengliang Zhang ◽  
Paolo Giangrande ◽  
Giacomo Sala ◽  
Zeyuan Xu ◽  
Wei Hua ◽  
...  

2009 ◽  
Vol 5 (S268) ◽  
pp. 469-471
Author(s):  
Hubert Reeves

AbstractMy aim is to show how the abundance ratios of the light elements (6 to 11) are related to the properties of the strong nuclear interaction and, in particular, to the major influence of closed shells of neutrons and protons, (the magic numbers : 2, 8, etc) on the binding energies of the nuclei.


1965 ◽  
Vol 43 (7) ◽  
pp. 1248-1258 ◽  
Author(s):  
A. Gilbert ◽  
F. S. Chen ◽  
A. G. W. Cameron

There has been discussion in the literature as to whether the cumulative number of levels in light nuclei varies more nearly as exp(const. [Formula: see text]) or exp(const. E), where E is the excitation energy. The question is examined in this paper. It is found that if one constructs "step diagrams" by plotting the cumulative number versus the energy, both formulas represent the data almost equally well. However, additional consideration of levels counted above neutron and proton binding energies shows that exp(const. [Formula: see text]) fails badly to represent the data, whereas exp(const. E) continues to give good fits. In either case E may be measured above an arbitrary ground-state energy E0. If the satisfactory formula is written in the form exp(E–E0)/T, then it is found that the dependence of the slope on mass number may be expressed in approximately the form T−1 = 0.0165A MeV−1, but there are significant deviations from this relation apparently related to shell structure. The intercepts E0 are quite variable but are roughly clustered according to the oddness or evenness of the neutron and proton numbers of the nucleus.


1951 ◽  
Vol 83 (3) ◽  
pp. 663-663 ◽  
Author(s):  
Jyumpei Sanada ◽  
Yasukazu Yoshizawa

1955 ◽  
Vol 14 (5) ◽  
pp. 490-492
Author(s):  
Shôta Suekane ◽  
Wataro Watari

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