LUNA
In 1991, the LUNA collaboration proposed a new, pioneering approach to nuclear astrophysics, that allowed to study a number of crucial nuclear reactions of astrophysical interest thanks to the extremely low background at LNGS. Since 2001, the LUNA experiment is equipped with a 400 kV accelerator and in the 2021 a new 3.5 MV machine will be installed.
Nuclear fusion reactions produce most of the energy irradiated by stars and are responsible for the synthesis of the elements in the Universe. In fact, through a complex network of nuclear reactions, stars forge most of the elements observed in the Universe starting from primordial hydrogen and helium left from the Big Bang. In addition, nuclear reactions determine stellar evolution and the flux of stellar neutrinos.
At typical astrophysical temperatures, nuclear fusion reactions can only take place in a relatively narrow energy window, called the Gamow peak. In most cases, such energy region lies far below the Coulomb repulsion barrier. As a consequence, fusion cross sections drop exponentially with decreasing energy, to the point that it takes millions or even billions particle collisions to give rise to a single fusion reaction. These extremely low cross sections are often inaccessible in laboratories at the Earth's surface, because the expected counting rate is much smaller than the background in a detector. Over the last decades, LUNA has provided valuable contribution to our present understanding of primordial nucleosynthesis, as well as stellar hydrogen and helium burning.
Websites:
Thesis Opportunities:
If you are interested in working with us at LUNA, we can offer some opportunities for PhD studentships and Post-Doctoral Fellowships, for further details, please visit our website.
If interested in applying, please contact: Carlo Gustavino and Alba Formicola.
Local Coordinator
Carlo Gustavino| Name | Surname | Role | Position |
|---|---|---|---|
| Alba | Formicola | Dipendente | Prima Ricercatrice |
| Carlo | Gustavino | Dipendente | Primo Ricercatore |