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Closing in on New Physics in light-quark flavour transitions: from tau decays to the LHC

Objective

This action studies the synergy of the Energy and the Intensity Frontiers, with the focus on non-standard effects involving leptons and light quarks. The project starts with an unprecedented Effective-Field-Theory (EFT) analysis of hadronic tau decays including non-standard effects. Their discovery potential and complementarity with direct LHC searches will be assessed in a model-independent approach. The results will be combined with d(s)→u l nu (l=e,mu) transitions and eq → eq (q=u,d,s) processes in a comprehensive EFT flavour fit that will close in on New Physics involving leptons and light quarks.

The obtained model-independent results will be particularised to specific New Physics scenarios that are of phenomenological or theoretical interest. Special attention will be paid to symmetries, symmetry-breaking patterns and classes of models with well-defined power-counting schemes. The emerging correlations between the studied observables will be analysed in detail. Finally, the EFT matching to a general Leptoquark parametrisation will be carried out, along with a phenomenological analysis. The implications for specific models proposed in the recent literature to accommodate various Standard Model tensions will be studied.

Fields of science (EuroSciVoc)

Programme(s)

Topic(s)

Funding Scheme

MSCA-IF-EF-ST - Standard EF

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Call for proposal

(opens in new window) H2020-MSCA-IF-2016

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Coordinator

ORGANISATION EUROPEENNE POUR LA RECHERCHE NUCLEAIRE
Net EU contribution
€ 187 419,60
Address
ESPLANADE DES PARTICULES 1 PARCELLE 11482 DE MEYRIN BATIMENT CADASTRAL 1046
1211 GENEVE 23
Switzerland
Region
Schweiz/Suisse/Svizzera Région lémanique Genève
Activity type
Research Organisations
Links
Total cost
€ 187 419,60