Professor Daniela Bortoletto: Publications

Search for single production of a vector-like $T$ quark decaying into a Higgs boson and top quark with fully hadronic final states using the ATLAS detector

ArXiv 2201.07045 (2022)

Search for exotic decays of the Higgs boson into b$$ \overline{b} $$ and missing transverse momentum in pp collisions at $$ \sqrt{s} $$ = 13 TeV with the ATLAS detector

Journal of High Energy Physics Springer 2022:1 (2022) 63

Authors:

G Aad, B Abbott, DC Abbott, A Abed Abud, K Abeling, DK Abhayasinghe, SH Abidi, H Abramowicz, H Abreu, Y Abulaiti, AC Abusleme Hoffman, BS Acharya, B Achkar, L Adam, C Adam Bourdarios, L Adamczyk, L Adamek, SV Addepalli, J Adelman, A Adiguzel, S Adorni, T Adye, AA Affolder, Y Afik, C Agapopoulou

Abstract:

A summary of results in heavy flavour physics from Run 1 of the LHC is presented. Topics discussed include spectroscopy, mixing, CP violation and rare decays of charmed and beauty hadrons.Comment: 25 pages, 9 figures (total 17 subfigures). Invited review for Comptes Rendus de Physique de l'Academie des Science

Latest developments and characterisation results of the MALTA sensors in TowerJazz 180nm for High Luminosity LHC

Sissa Medialab Srl (2022) 818

Authors:

Abhishek Sharma, Phil Allport, Ignacio Asensi, Ivan Berdalović, Daniela Bortoletto, Craig Buttar, Roberto Cardella, Florian Dachs, Valerio Dao, Dominik Dobrijevic, Mateusz Dyndal, Leyre Flores, Patrick Moriishi Freeman, Andrea Gabrielli, Laura Gonella, Matt LeBlanc, Kaan Oyulmaz, Heinz Pernegger, Francesco Piro, Petra Riedler, Milou van Rijnbach, Heidi Sandaker, Carlos Solans, Walter Snoeys, Tomislav Suligoj, Jose Torres, Steven Worm

Operation and performance of the ATLAS semiconductor tracker in LHC Run 2

Journal of Instrumentation IOP Publishing 17:01 (2022) P01013

Authors:

Georges Aad, Brad Abbott, Dale Charles Abbott, L Ambroz, G Artoni, WK Balunas, AJ Barr, D Bortoletto, F Celli, EI Conroy, Amanda Cooper-Sarkar, JA Frost, MG Foti, GE Gallardo, EJ Gallas, JC Grundy, C Gwenlan, YT Harris, CP Hays, TB Huffman, K Karava, Z Li, C Merlassino, M Mironova, Koichi Nagai, RB Nickerson, AP O’Neill, SR Paredes Saenz, CS Pollard, E Schopf, IPJ Shipsey, Y Wei, HA Smith, M Stankaityte, I Veliscek, GHA Viehhauser, AR Weidberg, PJ Windischhofer, R Wölker, KW Woźniak, S Yan, K Potamianos

Abstract:

The semiconductor tracker (SCT) is one of the tracking systems for charged particles in the ATLAS detector. It consists of 4088 silicon strip sensor modules. During Run 2 (2015–2018) the Large Hadron Collider delivered an integrated luminosity of 156 fb-1 to the ATLAS experiment at a centre-of-mass proton-proton collision energy of 13 TeV. The instantaneous luminosity and pile-up conditions were far in excess of those assumed in the original design of the SCT detector. Due to improvements to the data acquisition system, the SCT operated stably throughout Run 2. It was available for 99.9% of the integrated luminosity and achieved a data-quality efficiency of 99.85%. Detailed studies have been made of the leakage current in SCT modules and the evolution of the full depletion voltage, which are used to study the impact of radiation damage to the modules.

Search for long-lived charginos based on a disappearing-track signature using 136 fb$^{-1}$ of $pp$ collisions at $\sqrt{s}$ = 13 TeV with the ATLAS detector

ArXiv 2201.02472 (2022)

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