You are here


Pere Mato studied physics at University of Barcelona, Spain, where he obtained the Ph.D. in 1990. Since 1986 has been working at CERN in a number of projects. Started with the 3081/E emulator project at the DD division, and later moved to the Aleph experiment in the area of DAQ and slow controls. In 1994 he took the overall responsibility of the Aleph TPC detector until the end of LEP. From 1998 he led the development of the core software and framework for the LHCb experiment (Gaudi). In 2005 has been appointed Applications Area manager of the LCG project,  and later he has been leading the Software Development for Experiments (SFT) group in the Physics department.

Starting off as a physicist, Axel studied physics and math in Muenster, Germany. In 2000, he got a Ph.D. position for high energy physics in Nijmegen, The Netherlands. They sent him to Fermilab at Chicago, where he worked with the D0 experiment - which also meant writing software from PCI drivers to data analysis code. During that time he got involved with ROOT, slowly converting from a user to a developer. He contributed to whatever he needed, e.g. the statistics part, the documentation engine, and porting it to cygwin. After a position with the Fermilab Computing Division in 2005 he ended up at CERN in the ROOT development team.

Bertrand was primary working in Aluminum industry as process engineer, developing software for data acquisition, data analysis, statistical process control (SPC) and for X-Ray spectrometry. He has been involved in ROOT development since 2001 by porting ROOT to Windows. Bertrand is a member of the ROOT development team at CERN since August 2005. He's currently working on GUI (Graphical User Interface), core (mainly Windows support), and support of PROOF (Parallel Root Facility) on Windows.

Danilo is an experimental HEP physicist. As a member of the      CMS collaboration, he graduated in 2007 but already during his studies he worked for the CERN IT department. He obtained his PhD at the Karlsruhe Institute of Technology in 2010 to then immediately join CERN as responsible of many software operations of the CMS experiment. The high performance and parallel software expert of the SFT group, he joined the ROOT team in 2013. His main responsibility is the I/O subsystem but he is actively involved in the development and support of reflection and mathematical libraries.

Enric Tejedor received his Ph.D. from the Technical University of Catalonia (UPC, Spain) in 2013. He conducted his doctorate research as a member of the Grid Computing and Clusters group of the Barcelona Supercomputing Center, where he participated in several EU research projects. As part of his Ph.D., he also carried out two internships at the IBM T.J. Watson Research Center (NY, USA). In 2015 he joined the CERN PH-SFT group as a senior fellow. He is currently working on ROOT parallelization and ROOT as a Service (ROOTaaS).

Gerri Ganis is an experimental high-energy physicist. He graduated in Physics at the University of Trieste, Italy, in 1988. He worked for many years in the ALEPH experiment at LEP in particular in the fields of offline data analysis and software development. In 2002, he joined the CERN PH-SFT group and the ROOT development team. He is currently the main developer and architect of the PROOF system. He is also responsible for the security infrastructure of the ROOT and XROOTD/SCALLA systems.

Lorenzo started working in 1989 as an experimental physicist for the ALEPH experiment working for data analysis and software event reconstruction. He graduated in Pisa in 1990 and he received his Ph.D. in particle physics in 1994 at the University of Florence. Afterwards, since 1997, he was working for data analysis of the CDF experiments and online software for the ATLAS experiment. In 2002 he joined the physics application software group of CERN, and since 2005 he joined the ROOT team with the responsibility of the Math work package, which provides development and support for the ROOT mathematical and statistical libraries. 

Olivier Couet received a Physic's Master from the  Strasbourg University and a Master’s Degree in Engineering from the "Ecole Nationale Supérieure de Physique de Strasbourg" (ENSPS) on work in computer graphics and image processing in 1985. He then performed his Ph.D work (in Computer Graphics) at the "Laboratoire D'Annecy le Vieux de Physique des Particules" (LAPP) on the PAW project. He has been employed by CERN since 1988. He was one of the main authors of the PAW system, more precisely its graphical components (HIGZ and HPLOT). HIGZ has been the standard graphics package in High Energy Physics for years and is still being used. He was responsible for the PAW system from 1995 until he joined the ROOT team in 2002 and took responsibility of the graphics work package.

Philippe Canal has been working in the FNAL Computing Division since 1995. Philippe graduated from Ecole Centrale Paris and has a Master in Computer Science from Northwestern University. Philippe is responsible for the development of the I/O sub-system and the Tree query mechanism and oversee the overall architecture of ROOT.  Philippe coordinates the support for ROOT for all FNAL experiments.

Vassil graduated from the University of Plovdiv "Paisii Hilendarski", Bulgaria. He received a MSc in Software Technologies and a PhD in Computer Science with specialization in programming languages and visual programming. He joined the ROOT team in 2010, authoring Cling - the interactive, LLVM-based C++ interpreter. He was one of the core engineers involved in ROOT6.

Vassil is responsible for the implementation and adoption of clang's C++ modules (PCMs) in ROOT. He also helps with interpreter and reflection related activities in the ROOT project. He works on the CMS interests in the ROOT collaboration including development, trouble shooting, and any other activities as may be required.   

From January, 2017, Vassil is employed by Princeton University and part of the Princeton Intel Parallel Computing Center (IPCC) project, which focuses on code modernization in ROOT.