Riccardo Barbieri
Riccardo Barbieri | |
|---|---|
| Born | 1944 |
| Nationality | Italian |
| Known for | Physics beyond the Standard Model, Supersymmetry, Quantum field theory |
| Scientific career | |
| Fields | Theoretical physicist |
| Institutions | Scuola Normale Superiore di Pisa |
Riccardo Barbieri (born 1944) is an Italian theoretical physicist and a professor at the Scuola Normale Superiore di Pisa. He has written more than two hundred research papers in the field of theoretical elementary particle physics,[1] and has been particularly influential in physics beyond the Standard Model.
Research career
Riccardo Barbieri received his undergraduate education in 1963-67 at the Scuola Normale Superiore in Pisa and at the University of Pisa. His laurea advisor was Pietro Menotti. During his Ph.D. (perfezionamento) in 1967-69 at the Scuola Normale Superiore and in later years he worked on higher-order radiative corrections in Quantum Electrodynamics with Ettore Remiddi. In the 1970s he turned to computations in Quantum Chromodynamics, collaborating in particular with Raoul Gatto and Zoltan Kunszt. In 1976 at CERN, he made the prediction, later experimentally verified, of the hadronic widths of the three charmonium P-waves.[2][3]
In 1980-82, Riccardo Barbieri was a staff member at the CERN Theory Division. The Standard Model of particle physics by then well established, he started focussing on models beyond the Standard Model, in particular supersymmetry. In 1982, he formulated the first realistic model of mediation of supersymmetry breaking via supergravity.[4]
Since 1984 and until now, Riccardo Barbieri has been professor of theoretical physics at Pisa, first at the University of Pisa (1984–97), and then at the Scuola Normale Superiore (1998–present). Some of his most influential results in this period include:
- In 1988, the quantitative formulation of the naturalness concept in supersymmetric models.[5]
- In 1990, the formulation of a reference parametrization of the quantum corrections to the electroweak precision observables.[6]
- In 1995, pointing out the significance of flavour and CP violations in supersymmetric unified theories even in absence of any flavour or CP violation in the input for the soft-supersymmetry breaking parameters.[7]
- In 2006, the proposal of a Dark Matter model based on a second Higgs doublet without vacuum expectation value.[8]
Mentoring
Having taught in Pisa for 30 years, Riccardo Barbieri is acclaimed for creating a numerous and flourishing school of theoretical high energy physics. Among many of his students and postdocs who went on to become professors of theoretical physics in Italy and around the world, are Gian F. Giudice and Michelangelo Mangano (permanent staff members at the CERN), Riccardo Rattazzi (professor at the EPFL), Alessandro Strumia (professor at the University of Pisa), Andrea Romanino (professor at SISSA), Paolo Creminelli (professor at the ICTP), Michele Papucci (professor at the University of Michigan), Gia Dvali (professor at the LMU Munich), Vyacheslav Rychkov (professor at the UPMC Paris).
Famous quotes
“Elementary particle physics is the quadrant of nature whose laws can be written in a few lines with absolute precision and the greatest empirical adequacy.”[9]
Books
Barbieri, R. (2007). Lectures on the Electroweak Interactions, Publications of the Scuola Normale Superiore, Vol. 5[9]
References
- ^ http://inspirehep.net/author/R.Barbieri.1
- ^ Barbieri, R.; R. Gatto; R. Kögerler (1976). "Calculation of the annihilation rate of P wave quark-antiquark bound states". Physics Letters B. 60 (2): 183–188. doi:10.1016/0370-2693(76)90419-6. ISSN 0370-2693.
- ^ Barbieri, R.; R. Gatto; E. Remiddi (1976). "Singular binding dependence in the hadronic widths of 1++ and 1+− heavy quark antiquark bound states". Physics Letters B. 61 (5): 465–468. doi:10.1016/0370-2693(76)90729-2. ISSN 0370-2693.
- ^ Riccardo Barbieri, Sergio Ferrara, Calos Savoy (1982). "Gauge Models with Spontaneously Broken Local Supersymmetry". Phys. Lett. B. 119: 343. doi:10.1016/0370-2693(82)90685-2.
{{cite journal}}: CS1 maint: multiple names: authors list (link) - ^ Riccardo Barbieri, Gian F. Giudice (1988). "Upper Bounds on Supersymmetric Particle Masses". Nucl. Phys. B. 306: 63. doi:10.1016/0550-3213(88)90171-X.
- ^ Riccardo Barbieri, Guido Altarelli (1991). "Vacuum polarization effects of new physics on electroweak processes". Phys. Lett. B. 253: 161. doi:10.1016/0370-2693(91)91378-9.
- ^ Riccardo Barbieri, Lawrence J. Hall, Alessandro Strumia (1995). "Violations of lepton flavor and CP in supersymmetric unified theories". Nucl. Phys. B. 405: 219. doi:10.1016/0550-3213(95)00208-A.
{{cite journal}}: CS1 maint: multiple names: authors list (link) - ^ Barbieri, Riccardo; Lawrence Hall; Vyacheslav Rychkov (2006). "Improved naturalness with a heavy Higgs boson: An alternative road to CERN LHC physics". Physical Review D. 74 (1). doi:10.1103/PhysRevD.74.015007.
- ^ a b Barbieri, Riccardo (2007). Lectures on the electroweak interactions. Pisa, Italy: Edizione della Normale. ISBN 978-88-7642-311-6.