Challenging the Standard Model with the scrutiny of b to qll transitions

Informazioni relative al progetto

Chiaroscuro

ID dell’accordo di sovvenzione: 101018181

DOI

10.3030/101018181

Data della firma CE 8 Luglio 2021

Data di avvio 1 Ottobre 2021

Data di completamento 30 Settembre 2028

Finanziato da

• EXCELLENT SCIENCE - European Research Council (ERC)

Costo totale

€ 2 221 993,00

Contributo UE

€ 2 221 993,00

Coordinato da

CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE CNRS
France

Periodic Reporting for period 2 - Chiaroscuro (Challenging the Standard Model with the scrutiny of b to qll transitions)

Periodo di rendicontazione: 2023-04-01 al 2024-09-30

Sintesi del contesto e degli obiettivi generali del progetto

The Chiaroscuro project is probing the potential existence of elementary particles beyond those currently known from the Standard Model of Particle Physics.
During its first 30 months, despite external challenges such as the COVID-19 pandemic and the war in Ukraine, the project progresses well using the data already recorded by the LHCb experiment at CERN. Indeed, due to the delay in the recording of physics quality data with the upgraded LHCb detector, the project extracts as much as possible the full information from the previously recorded data. In parallel, the understanding of the new data is on-going.

Lavoro eseguito dall’inizio del progetto fino alla fine del periodo coperto dalla relazione e principali risultati finora ottenuti

We have performed detailled studies on b→see transitions in particuler for the Bs -> Phi ee decay mode and the B0 -> K*0 ee decay mode

Progressi oltre lo stato dell’arte e potenziale impatto previsto (incluso l’impatto socioeconomico e le implicazioni sociali più ampie del progetto fino ad ora)

We have performed detailed studies on b→see transitions which are of great interest because their comparison may help to shade light on tensions seen in transitions b→s mu mu transitions which are already well studied, contrary to modes involving electrons.

One of the billions of events recorded by the LHCb experiment.