Flavour physics played an important role for the establishment of the Standard Model (SM) of particle physics. Charge-Parity (CP) violations or suppressions of the Flavour Changing Neutral Current (FCNC) are indeed naturally explained by the SM. In modern particle physics experiments with much higher luminosities, flavour physics aims at the discovery of signals from physics beyond the SM, in...
The oscillations of neutrinos was discovered only 2 decades ago, when the Super-Kamiokande collaboration observed the disappearance of atmospheric neutrinos. In less than two decades, the physics of neutrino oscillations has been the fertile field for tremendous progresses. In 2012 and 2013
respectively, Daya Bay, Reno and T2K (Toka-To-Kamioka) completed the first puzzle of neutrino...
Over the last 25 years since the discovery of neutrino oscillations, the standard PMNS paradigm, mirroring the CKM mixing in quarks, has been consolidated and is able to describe almost all neutrino oscillation data. With this consolidation, neutrino oscillation physics is entering a new era of precision measurements in search for subdominant contributions that may hint at new physics. In this...
The violation of the Charge and Parity symmetries (CP) is a necessary conditions
to explain the imbalance between matter and antimatter in our universe. In the
Standard Model the phase of the Cabibbo-Kobayashi-Maskawa (CKM) matrix is the
only source of CP violation, it is however orders of magnitudes too small to
explain the observed imbalance. 2023 marks not only the 150th anniversary of...
Kaon physics has been a source of many discoveries and was essential for the establishment of the Standard Model of particle physics as a viable theory of nature. In recent years the kaon physics community is concentrated on measuring the very rare $K \rightarrow \pi \nu \bar{\nu}$ decays, which are considered golden modes in flavour physics.
The charged $K^+ \rightarrow \pi^+ \nu \bar{\nu}$...
The Large Hadron Collider beauty (LHCb) experiment has been designed to study the properties of particles containing beauty quarks. The rare and beyond Standard Model (BSM) decays of these particles provide a unique window to search for new physics beyond the Standard Model. In this talk, we review recent results on rare and BSM decays at LHCb. We discuss the observation of several rare decay...
The Belle II detector, located at the SuperKEKB accelerator, is designed for direct and indirect searches of New Physics beyond the Standard Model via precision measurements of $e^+e^-$ collisions. Belle II has already recorded half of the data collected by its predecessor, aiming at collecting $50\, \text{ab}^{-1}$ of integrated luminosity at the end of operations,
and reached a world-record...
L’origine des masses des neutrinos est l'un des grands mystères de la physique des particules, qui est indissociable de celui de leur nature (fermions de Dirac ou de Majorana) et pourrait être lié à la question de la prévalence de la matière sur l’antimatière dans l’Univers. Dans cet exposé, je ferai le point sur nos connaissances sur les masses des neutrinos, sur les mécanismes susceptibles...
Neutrinoless Double Beta Decay is a hypothetical nuclear process in which two neutrons simultaneously decay into two protons plus two electrons and no antineutrino emission. If this decay were observed, it would point to new physics beyond the Standard Model of Particle Physics and it would allow us to establish the nature of neutrinos.
Today, the lower limits on the half-life of this...
The ATLAS and CMS experiments have carried out a rich heavy flavor physics program since the start of the LHC data taking.
Topics discussed in this contribution include spectroscopy, rare decays of beauty hadrons and other decays highly sensitive to physics beyond the Standard Model. Searches in the lepton sector of flavor physics are also discussed.
Results obtained by the ATLAS and CMS...
