New experimental results

LHCb results strengthen hints of a violation of lepton flavour universality

April 7, 2021

Theory Division

LHCb has overcome the 3 sigma barrier in the tension between the measurement of the observable RK and the prediction of the SM, reaching 3.1 sigmas. This observable tests the universality (or not) of leptonic flavor. The SM predicts a value of 1 very accurately for this observable.

Marcel Algueró on behalf of the group led by Joaquim Matias presented the implications of this new data in the global analyzes of observables governed by b-> sll in the (virtual) conference of Moriond QCD 2021.

Joaquim Matias is quoted in an article about the results in Diaria Ara

Link to CERN Press release

Latest Group News

New Publication

Theory group paper on Scientific American

May 2, 2024

Scientific American has published the article interviewing Ricardo Z. Ferreira, former postdoc in the Theory Group.

New Member

New Member in the Theory Division

January 17, 2024

Bernat Capdevila has joined the Theory Group at IFAE and the UAB Physics Department as Postdoc Researcher.

Award

Researcher Fabrizio Rompineve receives the Buchalter Cosmology Prize

January 16, 2024

Fabrizio Rompineve, researcher at the UAB Department of Physics and at the Institut de Física d’Altes Energies (IFAE), has been awarded the Buchalter Cosmology Prize for his research on gravitational waves from the early universe.