Paraskevas Sphicas
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Paraskevas Andreas Sphicas () is a
particle physicist Particle physics or high-energy physics is the study of fundamental particles and fundamental interaction, forces that constitute matter and radiation. The field also studies combinations of elementary particles up to the scale of protons and ...
who focuses on studies of High energy collisions in the
Large Hadron Collider The Large Hadron Collider (LHC) is the world's largest and highest-energy particle accelerator. It was built by the CERN, European Organization for Nuclear Research (CERN) between 1998 and 2008, in collaboration with over 10,000 scientists, ...
through which he explores
supersymmetry Supersymmetry is a Theory, theoretical framework in physics that suggests the existence of a symmetry between Particle physics, particles with integer Spin (physics), spin (''bosons'') and particles with half-integer spin (''fermions''). It propo ...
and the mechanism of
spontaneous symmetry breaking Spontaneous symmetry breaking is a spontaneous process of symmetry breaking, by which a physical system in a symmetric state spontaneously ends up in an asymmetric state. In particular, it can describe systems where the equations of motion o ...
. He is a senior scientist at
CERN The European Organization for Nuclear Research, known as CERN (; ; ), is an intergovernmental organization that operates the largest particle physics laboratory in the world. Established in 1954, it is based in Meyrin, western suburb of Gene ...
and professor of physics at the
National and Kapodistrian University of Athens The National and Kapodistrian University of Athens (NKUA; , ''Ethnikó kai Kapodistriakó Panepistímio Athinón''), usually referred to simply as the University of Athens (UoA), is a public university in Athens, Greece, with various campuses alo ...
. He was elected a
Fellow of the Royal Society Fellowship of the Royal Society (FRS, ForMemRS and HonFRS) is an award granted by the Fellows of the Royal Society of London to individuals who have made a "substantial contribution to the improvement of natural science, natural knowledge, incl ...
(FRS) in 2019. One or more of the preceding sentences incorporates text from the royalsociety.org website where:


Education

Sphicas received his
Bachelor of Science A Bachelor of Science (BS, BSc, B.S., B.Sc., SB, or ScB; from the Latin ') is a bachelor's degree that is awarded for programs that generally last three to five years. The first university to admit a student to the degree of Bachelor of Scienc ...
and
PhD A Doctor of Philosophy (PhD, DPhil; or ) is a terminal degree that usually denotes the highest level of academic achievement in a given discipline and is awarded following a course of graduate study and original research. The name of the deg ...
degrees in Physics from the
Massachusetts Institute of Technology The Massachusetts Institute of Technology (MIT) is a Private university, private research university in Cambridge, Massachusetts, United States. Established in 1861, MIT has played a significant role in the development of many areas of moder ...
in 1984 and 1988 respectively. Sphicas worked on his PhD thesis at the
UA1 experiment The UA1 experiment (an abbreviation of Underground Area 1) was a high-energy physics experiment that ran at CERN's Proton-Antiproton Collider (SpS), a modification of the one-beam Super Proton Synchrotron (SPS). The data was recorded between 1 ...
in
CERN The European Organization for Nuclear Research, known as CERN (; ; ), is an intergovernmental organization that operates the largest particle physics laboratory in the world. Established in 1954, it is based in Meyrin, western suburb of Gene ...
, looking for new
resonances Resonance is a phenomenon that occurs when an object or system is subjected to an external force or vibration whose frequency matches a resonant frequency (or resonance frequency) of the system, defined as a frequency that generates a maximu ...
that decay into jets and studying the production of multiple particle jets.


Career and research

After obtaining his doctorate, he continued at CERN, researching
top Top most commonly refers to: * Top, a basic term of orientation, distinguished from bottom, front, back, and sides * Spinning top, a ubiquitous traditional toy * Top (clothing), clothing designed to be worn over the torso * Mountain top, a moun ...
and bottom quarks. He moved back to the US in 1990 when appointed a Wilson Fellow by
Fermilab Fermi National Accelerator Laboratory (Fermilab), located in Batavia, Illinois, near Chicago, is a United States Department of Energy United States Department of Energy National Labs, national laboratory specializing in high-energy particle phys ...
. He worked on the
Tevatron The Tevatron was a circular particle accelerator (active until 2011) in the United States, at the Fermilab, Fermi National Accelerator Laboratory (called ''Fermilab''), east of Batavia, Illinois, and was the highest energy particle collider unt ...
at the
Collider Detector at Fermilab The Collider Detector at Fermilab (CDF) experimental collaboration studies high energy particle collisions from the Tevatron, the world's former highest-energy particle accelerator. The goal is to discover the identity and properties of the par ...
(CDF). In 1991, he joined the
Massachusetts Institute of Technology The Massachusetts Institute of Technology (MIT) is a Private university, private research university in Cambridge, Massachusetts, United States. Established in 1861, MIT has played a significant role in the development of many areas of moder ...
(MIT), becoming Associate Professor in 1994 and then Professor in 1997. Sphicas continued work on the CDF through the 1990s as part of MIT's team in the CDF experiments. The MIT Team was responsible for three Collider components: the forward calorimeter, the Data Acquisition System and the Third Level Trigger. The 18 MIT scientists, by then led by Sphicas, were part of the team that produced the first evidence for the
Top quark The top quark, sometimes also referred to as the truth quark, (symbol: t) is the most massive of all observed elementary particles. It derives its mass from its coupling to the Higgs field. This coupling is very close to unity; in the Standard ...
in 1994. Sphicas began participating in the
Compact Muon Solenoid The Compact Muon Solenoid (CMS) experiment is one of two large general-purpose particle physics detectors built on the Large Hadron Collider (LHC) at CERN in Switzerland and France. The goal of the CMS experiment is to investigate a wide range ...
(CMS) experiment at CERN in 1994. His early contributions included the development of the Data Acquisition System and the High Level Trigger for CMS, and also the setting up of the Physics Reconstruction and Selection division. In 2002, he moved from MIT to CERN to focus on the CMS. He was also appointed as Professor of Physics at the
National and Kapodistrian University of Athens The National and Kapodistrian University of Athens (NKUA; , ''Ethnikó kai Kapodistriakó Panepistímio Athinón''), usually referred to simply as the University of Athens (UoA), is a public university in Athens, Greece, with various campuses alo ...
in 2002. He worked in several supervisory roles in the CMS experiment, as it progressed towards the discovery of the
Higgs boson The Higgs boson, sometimes called the Higgs particle, is an elementary particle in the Standard Model of particle physics produced by the excited state, quantum excitation of the Higgs field, one of the field (physics), fields in particl ...
in 2012. He co-chaired the publication committee of the experiment in 2012-13 and was then appointed deputy spokesperson for the experiment for three years beginning in 2014. Sphicas is currently working on the upgrade of the level-1 trigger system of the CMS, preparing for the High Luminosity phase of the Large Hadron Collider at CERN, set to complete by 2026. He has also been serving as the chair of European Committee for Future Accelerators since January 2024.


References

{{DEFAULTSORT:Sphicas, Paraskevas 1963 births Living people Fellows of the Royal Society People associated with CERN Massachusetts Institute of Technology alumni