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

Projektinformationen

Chiaroscuro

ID Finanzhilfevereinbarung: 101018181

DOI

10.3030/101018181

EK-Unterschriftsdatum 8 Juli 2021

Startdatum 1 Oktober 2021

Enddatum 30 September 2028

Finanziert unter

• EXCELLENT SCIENCE - European Research Council (ERC)

Gesamtkosten

€ 2 221 993,00

EU-Beitrag

€ 2 221 993,00

Koordiniert durch

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)

Berichtszeitraum: 2023-04-01 bis 2024-09-30

Zusammenfassung vom Kontext und den Gesamtzielen des Projekts

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.

Arbeit, die ab Beginn des Projekts bis zum Ende des durch den Bericht erfassten Berichtszeitraums geleistet wurde, und die wichtigsten bis dahin erzielten Ergebnisse

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

Fortschritte, die über den aktuellen Stand der Technik hinausgehen und voraussichtliche potenzielle Auswirkungen (einschließlich der bis dato erzielten sozioökonomischen Auswirkungen und weiter gefassten gesellschaftlichen Auswirkungen des Projekts)

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.