Thursday, 29 September 2016 back

Bellini awarded the International Prize “Bruno Pontecorvo”

Friday September 13, 2016 the presence of the Council of the Joint Institute of Nuclear Research in Dubna (J.I.N.R.), Prof. V.A. Mateev, Director of J.I.N.R has given to Gianpaolo Bellini the Bruno Pontecorvo Prize 2016.

Bellini has been awarded by an International Committee for the following reasons:

“For his outstanding contributions to the development of low-energy neutrino detection methods, their realization in the Borexino detector, and the important solar and geo-neutrino results obtained in this experiment”. The Committee was composed of Art McDonald (Nobel Prize 2015), Yoichiro Suzuki (spokesman of the experiment SuperKamiokande), Luciano Maiani, Alexander Olshevski.

This award, one of the most prestigious in the field of Physics is awarded to scientists who have contributed with very important breaktroughs to the Particle Physics and in particular to the Neutrino Physics. 

The experiment BOREXINO, chaired by Gianpaolo Bellini from 1990 to 2011, has demonstrated that the Sun operates according to a cycle of nuclear reactions by measuring the flows of the emitted neutrinos and showed the Sun stability at 10time scale. In addition BOREXINO reached for the first time evidence of the phenomenon of  neutrino oscillation in vacuum, by measuring the ratio between the survival probability of survival in a vacuum and in matter of the electron neutrino.

 


 

Consegnato al fisico Gianpaolo Bellini il premio internazionale "Bruno Pontecorvo" 2016. La cerimonia di conferimento si è svolta a Dubna, presso il Joint Institute for Nuclear Research (JINR). A consegnare il prestigioso riconoscimento scientifico il Direttore del JINR V.A. Mateev. Il premio è stato assegnato da un Comitato Internazionale - composto da Art McDonald (Premio Nobel 2015), Yoichiro Suzuki (spokesperson dell’esperimento Superkamiokande), Luciano Maiani (vincitore del premio Pontecorvo nel 2014) e Alexander Olshevski -, con la seguente motivazione: "Per i suoi eccezionali contributi allo sviluppo di metodi di rivelazione di neutrini a bassa energia, la loro realizzazione nel rivelatore Borexino e gli importanti risultati sui neutrini solari e i geo-neutrini ottenuti da questo esperimento".

Il premio Pontecorvo, uno dei più prestigiosi in fisica, viene assegnato a scienziati che abbiano dato un rilevante contribuito nel campo della fisica delle particelle e, in particolare, con importanti scoperte sulla fisica del neutrino. In passato, è stato assegnato ad altri quattro scienziati italiani: Ugo Amaldi, Antonino Zichichi, Luciano Maiani ed Ettore Fiorini.

Scienziato emerito dell’Istituto Nazionale di Fisica Nucleare (INFN) e professore ordinario, attualmente in pensione, presso l’Università di Milano, Bellini è un fisico sperimentale delle particelle elementari e della fisica astroparticellare. Dal 1990 al 2011 ha ideato e guidato nei Laboratori Nazionali del Gran Sasso (LNGS) dell'INFN l'esperimento Borexino, di cui è stato spokesperson per più di vent’anni. Un esperimento unico al mondo per la sua ineguagliata radiopurezza, che misura i neutrini fin dalle bassissime energie.

Tra i successi di Borexino, la prima misura della luminosità solare attraverso i neutrini - risultato nominato fra i “Top Ten Breakthroughs 2014” dal britannico Institute of Physics -, la misura dell’oscillazione dei neutrini nel regime di vuoto e dei flussi solari provenienti da tutte le reazioni nucleari attive nel Sole, risultati che hanno permesso di confermare le previsioni del Modello Solare Standard. Infine, la misura dei geo-neutrini con una evidenza maggiore del 99,9999993% di probabilità. Attualmente, Borexino è al lavoro per ottenere una nuova importante misura riguardante le stelle massive.

 



22 February 2016

The prestigious International Prize “Bruno Pontecorvo” 2016 was awarded to the Italian physicist Gianpaolo Bellini “for his outstanding contributions to the development of low-energy neutrino detection methods, their realization in the Borexino detector, and the important solar and geo-neutrino results obtained in this experiment”.

The Jury members were Samoil Bilenky, Luciano Maiani, Arthur McDonald (Nobel Prize 2015), Alexander Olshevskiy (chair), Yoichiro Suzuki.

Emeritus Scientist of the italian National Institute of Nuclear Physics (INFN) and Full Professor (now retired) at the University of Milan, Bellini is an experimental physicist of the Elementary Particle and Astroparticle Physics.

In the various experiments he carried out at the major international laboratories Bellini reached many important original results, some of which are actual discoveries. We can remember: in the 70s, the physics of “Coherent Productions of high-energy particles on nuclei”, written almost completely by the Bellini’s works, which clarified important aspects on the mechanism of the interaction and production within the nuclear matter, and led, among other things, to the discovery of the first and second radial excitation of the p-meson (CERN and IHEP of Serphukov-Russia); in the 80s, the first measure of the lifetime of a particle with Charm with exponential method (CERN), and the first measure of the lifetimes of all particles with Charm (Fermilab-USA), achieved thanks to the active Silicon target, designed by Bellini, and to the first microvertex constructed in his laboratory.

Since 1990, Bellini has designed, installed in the Gran Sasso Laboratory, and managed as spokesman during more than 20 years the Borexino experiment, unique in the world for its ever achieved radio-purity, able to measure neutrinos from very low energies. Borexino has measured for the first time: the solar luminosity through neutrinos (result nominated among the “Top Ten Breakthroughs 2014” by the British Institute of Physics), the neutrino oscillation in vacuum regime, the solar fluxes from all nuclear reactions active in the Sun, confirming the Solar Standard Model predictions, and measured the geo-neutrinos with an evidence of more than 99.9999993% of probability.

Currently Borexino is working to get a new important measure concerning the massive stars and to test the existence of a fourth neutrino (sterile neutrino).