Speaker
Description
The Borexino experiment, unique in the world for its radiopurity, in the last 15 years has answered to the humanity's primordial question about the nature of the Sun and the stars.
Already in the ‘30s of the last century, Hans Bethe and Carl Friedrich von Weizsäcker hypothesized the chain and the cycle of fusion reactions that power Sun and stars. The individual fusion reactions never have been measured, identified and confirmed (except one of them) until the Borexino experiment succeeded to measure the reactions of the pp chain, which produces 99% of the Sun energy, and of the CNO cycle, subdominant in the Sun (1%), but primary channel for hydrogen burning in massive stars, and in fact primary channel for hydrogen burning in the Universe. Also the CNO cycle never had a confirmation up to the Borexino experimental determination, allowing also to solve the long standing metallicity puzzle of the Standard Solar Model.
In this talk the experimental and analysis techniques are presented as well as the final results that have allowed to reach these historic breakthroughs.
Details
Prof. Gianpaolo Bellini - University and Infn Milano (Italy)
| Is this abstract from experiment? | Yes |
|---|---|
| Name of experiment and experimental site | BOREXINO |
| Is the speaker for that presentation defined? | Yes |
| Internet talk | Yes |
