Grinstein , Sebastian

Institut de Física d'Altes Energies (IFAE)

Experimental Sciences & Mathematics

I completed my Masters of Science at the University of Buenos Aires in 1998 working on the measurement of the production cross section of direct photons at the D0 experiment (Fermilab, USA). Afterwards, I worked in Sweden as a member of the Astroparticle Group of the Royal Institute of Technology studying cosmic rays. Back with the University of Buenos Aires, I did my PhD (2003) measuring the properties of quarks in high energy collisions at D0. In 2003 I became a postdoctoral Fellow at Harvard University where I worked mainly at the CDF experiment (Fermilab) on top-quark physics. In 2008 I joined the IFAE (Institut de Física d'Altes Energies) LHC-ATLAS experiment group as an ICREA Researcher. I am currently leading the ATLAS Pixel Detector upgrade effort at IFAE. In 2012 I became an ICREA Research Professor.

Research interests

My research has been focused on high-energy experimental particle physics: understanding which are the fundamental constitutes of nature and how they interact. At the Fermilab Tevatron accelerator I have performed studies of QCD and the properties of the heaviest quark, the top quark. At the LHC (CERN) I am conducting searches for new physics in the top sector, which may play a special role in the mass generation mechanisms of elementary particles. I am also interested in detector R&D and challenges related with the next generation of high energy accelerators and detectors. Currently I lead a coordinated project between IMB-CNM and IFAE on the ATLAS pixel detector upgrade. As a result of this project, 3D pixel silicon sensors designed and produced at Barcelona have been included in the new innermost detector layer of the ATLAS experiment at the LHC. On going work aims to develop radiation hard technologies for the high luminosity LHC era.

Selected publications

– Lange J & Grinstein S et al. 2016, ‘Beam tests of an integrated prototype of the ATLAS Forward Proton detector’, Journal Of Instrumentation, 11, P09005.

Grinstein S 2016, ‘The ATLAS Forward Proton Detector (AFP)‘, Nuclear and Particle Physics Proceedings, Volumes 273–275, Pages 1180–1184.

– Lange J & Grinstein S et al. 2016 ‘3D silicon pixel detectors for the High-Luminosity LHC‘, Journal of Instrumentation, 11.C11024.

Selected research activities

* Principal investigator of the ATLAS-Upgrade group at IFAE (FPA, MINECO).

* Principal investigator of the Instrumentation group at IFAE (SGR, AGAUR).

* Co-principal investigator of the 3D Biopsy on Tomosynthesis project (RIS3CAT, ACCIO).

* Coordinator of AIDA-2020 activities at IFAE (H2020, EU)

* Co-directed one PhD thesis. Suppervising other five PhD theses.

* Directed one MSc thesis and one undergraduate thesis (Treball de Grau).

Talks at Conferences:

* ‘3D Sensors fro the HL-LHC’, 11th Trento Meeting on Advanced Silicon Radiation Detectors, Feb 2016, Paris, France.

* ‘The AFP 3D Silicon Pixel Tracker’, 8th International Workshop on Semiconductor Pixel Detectors for Particles and Imaging (PIXEL), Sep 2016, Sestri-Levante, Italy.

* ‘Spanish activities in the ATLAS upgrade’, VIII CPAN Days, Nov 2016, Zaragoza, Spain.