The status of naturalness

by Prof. Gian Francesco Giudice (CERN)

Wednesday 9 Aug 2023, 15:30 → 17:00 Asia/Shanghai

Naturalness arguments have been a powerful guiding principle for physicists as they try to construct new theories. When applied to our current description of the microscopic world in terms of quantum field theory, naturalness leads to the apparent paradox of the smallness of the electroweak scale and the cosmological constant, as compared to the Planck scale. The hypotheses on which naturalness rests, the consequences of relaxing some of these hypotheses, and the current attempts to develop new paradigms beyond naturalness will be discussed.

Bio:
Gian Francesco Giudice is an Italian theoretical physicist working at CERN in particle physics and cosmology. After graduating in physics from the University of Padua in 1984, Giudice obtained in 1988 his PhD in theoretical physics from the International School for Advanced Studies in Trieste. Between 1988 and 1990 he was Research Associate at the Fermi National Accelerator Laboratory near Chicago. Between 1990 and 1992 he was Research Fellow in the Physics Department of the University of Texas at Austin, in the group led by Steven Weinberg. After being employed by the Istituto Nazionale di Fisica Nucleare of Italy, in 1993 he moved to CERN, where he is currently the Head of the Theoretical Physics Department. Academician of the Istituto Veneto di Scienze, Lettere ed Arti, of Accademia Galileiana and the Accademia dei Lincei, he has been awarded the 2013 Jacques Solvay Chair in Physics.

Gian Francesco Giudice是一名意大利理论物理学家，从事粒子物理学和宇宙学研究，目前在欧洲核子研究组织（CERN）工作。1984年，Giudice从帕多瓦大学物理专业毕业后，于1988年在意大利高等国际研究学院获得了理论物理博士学位。在接下来的两年，他作为研究助理在芝加哥附近的费米国家加速器实验室进行研究工作。随后，他于1990年至1992年间担任德克萨斯大学奥斯汀分校物理系的研究员，加入了由Steven Weinberg领导的研究小组。在1993年加入意大利国家核物理研究所后，Giudice转入了欧洲核子中心（CERN），目前担任理论物理学部主任一职。他是威尼托科学、文学和艺术学院、伽利略科学院以及林契学院院士，并获得了2013年雅克·索尔维物理学讲座奖。

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