I - 34151 Trieste Italy

*(+39) 040 2240 111*

*pio@ictp.it*

- Joint ICTP/SISSA PhD Programme in Physics and Mathematics
- Joint PhD Programme, Earth Science and Fluid Mechanics
- Physics PhD Program
- Joint Masters in Physics
- Joint ICTP/Collegio Carlo Alberto Program in Economics
- International Master, Physics of Complex Systems
- Master of Advanced Studies in Medical Physics
- Masters in High Performance Computing

- Home
- About ICTP
- Prizes & Awards
- The Dirac Medal
- The Medallists
- Dirac Medallists 1996

**Tullio Regge**, Politecnico di Torino, Italy

for crucial contributions in theoretical and mathematical physics starting with his seminal investigation of the asymptotic behaviour of potential scattering processes through the analytic continuation of the angular momentum to the complex plane. This technique has found many applications in the study of differential equations while in the physics of the Strong Interactions, the so-called Regge trajectories have helped in the classification of particles and resonances by grouping together entities with different spin. The so-called Regge behaviour was, and still is, an important ingredient in the construction of String theories. In addition, Regge is also known for having introduced the first discretisation of space-time with a simple Einstein dynamics (the so-called Regge Calculus) and for his formulation of supergravity theories in the geometric language of differential forms.

**Martinus J.G. Veltman**, University of Michigan,
Ann Arbor, USA

for his pioneering investigations on the renormalisability of gauge theories and consequently, his analysis of the sensitivity of radiative corrections to both the mass differences in fermion doublets and the Higgs particle mass. These calculations provided the basic prediction in the search for the Top quark mass. Towards this goal, Veltman was one of the first to use the computer in Feynman diagram calculations. His software package for manipulations of algebraic symbols has been a privileged tool for a full generation of physicists.

**Tullio Regge**: Programme of the ceremony

**Martinus J.G. Veltman**: Programme of the ceremony

Press articles [INTRANET ONLY]

ICTP is governed by UNESCO, IAEA, and Italy, and is a UNESCO Category 1 Institute

http://library.ictp.it/ejds.aspx