Espinosa Sedano, JosÉ RamÓn
Research Professor
Social & Behavioural Sciences
Institucio Catalana de Recerca i Estudis Avancats
Spain
Biography
He obtained his PhD (UAM 1994) working on Particle Physics beyond the Standard Model at IEM (CSIC, Madrid) under the supervision of Mariano Quirós. After postdoctoral stays at DESY (Hamburg, Germany), University of Pennsylvania (Philadelphia, USA) and CERN (Geneva, Switzerland), in 1999 he joined IMAFF (CSIC, Madrid) and then IFT-UAM/CSIC (Madrid) with a permanent position as 'Científico Titular' being promoted to 'Investigador Científico' in 2005 and to 'Profesor de Investigación' in 2008. In November of that year he joined ICREA as Research Professor to work at IFAE.
Research Interest
The ultimate goal of his field of research, Particle Physics, is to understand nature at the most fundamental level determining its building blocks and the laws that govern them. In the path (of ever increasing energies) towards that goal, the Standard Model -the theory that describes how all phenomena observed so far can be explained in terms of a small number of particle species interacting according to a well defined mathematical framework- stands as an impressive achievement. In spite of this, it leaves open too many questions to be considered the ultimate theory, and strong reasons lead us to believe in physics beyond this Standard Model. As a theorist, he works at this high energy frontier exploring what theories might supersede the Standard Model and what experimental implications they would have. The Large Hadron Collider now in operation at CERN and a number of other experiments will provide us in coming years with crucial data to guide research in this fundamental field.
Publications
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A Note on the Fate of the Landau-Yang Theorem in Non-Abelian Gauge Theories, with M. Cacciari, L. del Debbio, A.D. Polosa and M. Testa, Phys. Lett. B753 (2016) 476.
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The 750 GeV Diphoton Excess as a First Light on Supersymmetry Breaking, with J.A. Casas and J.M. Moreno, Phys. Lett. B759 (2016) 159.
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Interplay of Infrared Divergences and Gauge-Dependence of the Effective Potential, with M. Garny and T. Konstandin, Phys. Rev. D94 (2016) 5, 055026.