Publication
New ATLAS group publication
February 3, 2021
Collider Physics Group“Search for pair production of third-generation scalar leptoquarks decaying into a top quark and a τ-lepton in pp collisions at s√=13 TeV with the ATLAS detector” has been submitted to JHEP.
“Search for pair production of third-generation scalar leptoquarks decaying into a top quark and a τ-lepton in pp collisions at s√=13 TeV with the ATLAS detector” has been submitted to JHEP.
This paper presents the first dedicated ATLAS search for pair production of scalar leptoquarks with a significant branching ratio into a top quark and a tau lepton.
Scalar leptoquarks decaying exclusively into tτ are excluded up to masses of 1.43 TeV while, for a branching fraction of 50% into tτ, the lower mass limit is 1.22 TeV. These are the most stringent direct limits to date on such production and decay modes.
Members of the IFAE-ATLAS team have played a leading role in this publication. In particular, Stergios Kazakos is one of the main analyzers, and Aurelio Juste the corresponding editor for the paper.
Link to the arXiv

#cientifiques
Tamara Vázquez Schröder participates in the launch of 'científiques 2026'
January 28, 2026
Tamara Vázquez Schröder, researcher in the Collider Physics Group at the Institut de Física d’Altes Energies (IFAE), took part in the launch event of the 2026 edition of the #científiques programme, held on 27 January 2026 at the UAB Casa Convalescència in Barcelona. The event marked the start of this year’s activities ahead of the International Day of Women and Girls in Science, celebrated on 11 February.
