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

Publication

New GW and Theory group publication

July 28, 2021

Search for a scalar induced stochastic gravitational wave background in the third LIGO-Virgo observing run” by A. Romero-Rodriguez, Mario Martinez, O. Pujolàs, M. Sakellariadou, V. Vaskonen has been uploaded to arXiv.

Conference

IFAE at EPS-HEP 2021

July 27, 2021

The European Physical Society conference on high energy physics 2021 (EPS-HEP 2021), one of the most important conferences in HEP of the year, is taking place online this week. Three IFAE groups are participating:

Conference

The IFAE theory group at HADRON 2021

July 27, 2021

The 19th International Conference on Hadron Spectroscopy and Structure in memoriam Simon Eidelman (HADRON2021) is taking place on July 26 - 31, 2021. The Theory Group at IFAE is contributing 2 talks