Publication

New IFAE-ATLAS Publication

February 24, 2021

Collider Physics Group

“Search for new phenomena in events with an energetic jet and missing transverse momentum in pp collisions at √s=13 TeV with the ATLAS detector” has been submitted to PRD.

Search for new phenomena in events with an energetic jet and missing transverse momentum in pp collisions at √s=13 TeV with the ATLAS detector ” has been submitted to PRD.

This paper describes a search for new physics in final states with an energetic jet and large missing transverse momentum (MET) in proton-proton collisions at √s=13 TeV at the LHC, based on data corresponding to an integrated luminosity of 139 fb−1 collected by the ATLAS detector during 2015-2018. In addition to an increase of almost a factor of four in the data size, the analysis implements a number of improvements in the signal selection and the background determination leading to enhanced sensitivity. The analysis also reached high precision in the background prediction uncertainty of 1.5% at low MET and 4.2% at high MET. The measurements are compatible with the SM predictions, the results are interpreted as an exclusion limit for different signal models.

From the IFAE-ATLAS team, Mario Martinez Perez, Jose Luis Munoz Martinez, Rachel Rosten, Sergio Gonzalez Fernandez and Danijela Bogavac have contributed to this publication. Jose Luis is one of the main analyzers, Mario is the corresponding editor for the paper.

Latest Group News

IFAE organization

New positions in the IFAE Organization

January 16, 2023

Mario Martinez, ICREA professor at IFAE and head of the Gravitational Waves Group, is the new Director of the Experimental Division and takes on the role of IFAE Deputy Director. Martine Bosman, retiring Director of the Experimental Division, assumes the status of IFAE Emeritus.

New Publication

New ATLAS group paper

January 12, 2023

The paper “Search for a new scalar resonance in flavour-changing neutral-current top-quark decays 𝒕 → 𝒒𝑿 (𝒒 = 𝒖, 𝒄), with 𝑿 → 𝒃𝒃bar, in proton-proton collisions at sqrt(s) = 13 TeV with the ATLAS detector” has been submitted to JHEP.

New Member

New Member in the ATLAS group

January 12, 2023

Javier Montejo Berlingen has joined the ATLAS group at IFAE as tenure-track Ramon y Cajal Researcher.