NA62
The NA62 experiment at CERN SPS was built with the aim of observing the ultra-rare decay of a charged kaon into a charged pion and a neutrino-antineutrino pair, and to measure the decay branching ratio. The Standard Model, predicts that this decay occurs about once every ten billion decays of the charged kaon. The measurement of the probability of decay by NA62 can therefore provide a precision test for the Standard Model, with the possibility of highlighting New Physics effects, if the result of the measurement is significantly different from the theoretical prediction.
The NA62 experiment recently reported the observation of seventeen events compatible with the pnn decay in the data collected in 2018, in addition to the two events observed in the 2017 data and one event observed in the 2016 data. This represents the highest statistic ever collected for the observation of this decay, which allowed the NA62 experiment perform the most precise measurement of decay Branching Ration, which appears to be compatible with Standard model expectations.
The experiment is also active in the search for exotic dark matter candidate particles such as 'Dark Photon', 'Axion like Particle', 'Heavy neutral leptons', activities in which the Rome group is directly involved. The experiment will continue to collect data starting in summer 2021, in order to further improve the accuracy of the measurement. The Rome group is responsible for upgrade of the level 0 trigger for the 2021-23 data taking.
Websites:
Thesis Opportunities:
Multi-lepton signatures of dark sectors in Kaon decays, Mauro Raggi.
Local Coordinator
Mauro Raggi| Name | Surname | Role | Position |
|---|---|---|---|
| Andrea | Biagioni | ||
| Paolo | Cretaro | ||
| Leonardi | |||
| Alessandro | Lonardo | ||
| Ottorino | Frezza | ||
| Pontisso | |||
| Mauro | Raggi | Associato | Prof. Associato |
| Paolo | Valente | Dipendente | Dirigente di Ricerca |
| Piero | Vicini | Dipendente |