The role of radioactive ion beams in nuclear astrophysics

2013 ◽  
Vol T152 ◽  
pp. 014011 ◽  
Author(s):  
Karlheinz Langanke ◽  
Hendrik Schatz
Keyword(s):  
Nuclear Astrophysics ◽  
Ion Beams ◽  
Radioactive Ion Beams

scholarly journals Understanding the origin of the positron annihilation line and the physics of supernova explosions

2021 ◽  
Author(s):  
F. Frontera ◽  
E. Virgilli ◽  
C. Guidorzi ◽  
P. Rosati ◽  
R. Diehl ◽  
...  
Keyword(s):  
Positron Annihilation ◽  
Large Scale ◽  
Gamma Ray ◽  
Nuclear Astrophysics ◽  
High Energy ◽  
Radioactive Isotopes ◽  
Fusion Reactions ◽  
Dark Matter Annihilation ◽  
Annihilation Line ◽  
Supernova Explosions

AbstractNuclear astrophysics, and particularly nuclear emission line diagnostics from a variety of cosmic sites, has remained one of the least developed fields in experimental astronomy, despite its central role in addressing a number of outstanding questions in modern astrophysics. Radioactive isotopes are co-produced with stable isotopes in the fusion reactions of nucleosynthesis in supernova explosions and other violent events, such as neutron star mergers. The origin of the 511 keV positron annihilation line observed in the direction of the Galactic Center is a 50-year-long mystery. In fact, we still do not understand whether its diffuse large-scale emission is entirely due to a population of discrete sources, which are unresolved with current poor angular resolution instruments at these energies, or whether dark matter annihilation could contribute to it. From the results obtained in the pioneering decades of this experimentally-challenging window, it has become clear that some of the most pressing issues in high-energy astrophysics and astro-particle physics would greatly benefit from significant progress in the observational capabilities in the keV-to-MeV energy band. Current instrumentation is in fact not sensitive enough to detect radioactive and annihilation lines from a wide variety of phenomena in our and nearby galaxies, let alone study the spatial distribution of their emission. In this White Paper (WP), we discuss how unprecedented studies in this field will become possible with a new low-energy gamma-ray space experiment, called ASTENA (Advanced Surveyor of Transient Events and Nuclear Astrophysics), which combines new imaging, spectroscopic and polarization capabilities. In a separate WP (Guidorzi et al. 39), we discuss how the same mission concept will enable new groundbreaking studies of the physics of Gamma–Ray Bursts and other high-energy transient phenomena over the next decades.

New Advances in the Trojan Horse Method as an Indirect Approach to Nuclear Astrophysics

2012 ◽  
Vol 54 (5-6) ◽  
pp. 745-753 ◽  
Author(s):  
A. Tumino ◽  
C. Spitaleri ◽  
S. Cherubini ◽  
M. Gulino ◽  
M. La Cognata ◽  
...  
Keyword(s):  
Nuclear Astrophysics ◽  
Trojan Horse ◽  
Indirect Approach ◽  
Trojan Horse Method

scholarly journals Bubble chambers for experiments in nuclear astrophysics

2015 ◽  
Vol 781 ◽  
pp. 96-104 ◽  
Author(s):  
B. DiGiovine ◽  
D. Henderson ◽  
R.J. Holt ◽  
R. Raut ◽  
K.E. Rehm ◽  
...  
Keyword(s):  
Nuclear Astrophysics ◽  
Bubble Chambers

Trojan horse particle invariance: The impact on nuclear astrophysics

2014 ◽  
Author(s):  
R. G. Pizzone ◽  
C. Spitaleri ◽  
C. A. Bertulani ◽  
A. M. Mukhamedzhanov ◽  
L. D. Blokhintsev ◽  
...  
Keyword(s):  
Nuclear Astrophysics ◽  
Trojan Horse ◽  
The Impact

UNDERGROUND LABORATORIES AND THEIR PHYSICS REACH

2012 ◽  
Vol 27 (08) ◽  
pp. 1230008
Author(s):  
E. COCCIA
Keyword(s):  
Dark Matter ◽  
Cosmic Rays ◽  
Nuclear Astrophysics ◽  
Astroparticle Physics ◽  
The World ◽  
Radioactive Background ◽  
Earth's Crust ◽  
Silence Condition ◽  
Rare Phenomena ◽  
Fundamental Forces

Underground laboratories, shielded by the Earth's crust from the particles that rain down on the surface in the form of cosmic rays, provide the low radioactive background environment necessary to host key experiments in the field of particle and astroparticle physics, nuclear astrophysics and other disciplines that can profit of their characteristics and of their infrastructures. The cosmic silence condition existing in these laboratories allows the search for extremely rare phenomena and the exploration of the highest energy scales that cannot be reached with accelerators. Major fundamental challenges are within the scope of these laboratories, notably, understanding the properties of neutrinos and dark matter, and exploring the unification of the fundamental forces of nature. I will review the physics reach and briefly describe the main underground facilities that are presently in operation around the world.

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