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
Instrumentation
First Pre-production Modules for the ATLAS upgrades for the LH-LHC Assembled at IFAE
February 21, 2024
The first pre-production triplet module for the ATLAS upgrades for the LH-LHC has been assembled this week at IFAE. The IFAE ATLAS Pixels group is building modules for the innermost pixel layer of the tracking detector (ITk) and the new high granularity timing detector (HGTD).