Study on supersymmetric theories with R-symmetry and its experimental implications.

2015 Fiscal Year Final Research Report

• Project/Area Number: 24740151
• Research Category: Grant-in-Aid for Young Scientists (B)
• Allocation Type: Multi-year Fund
• Research Field: Particle/Nuclear/Cosmic ray/Astro physics
• Research Institution: The University of Tokyo
• Principal Investigator: Ibe Masahiro 東京大学, 宇宙線研究所, 准教授 (50599008)
• Project Period (FY): 2012-04-01 – 2016-03-31
• Keywords: 素粒子理論 / 超対称性 / 宇宙論

Outline of Final Research Achievements

The R-symmetry is a symmetry in a supersymmetric theory which is not commutative with supersymmetry. Due to its peculiar nature, R-symmetry puts strong constraints on supersymmetric models. In this project, we achieved substantial results as for generic aspect of the R-symmetry, as well as its effects on particle phenomenology and cosmology.
Some of those results are, generic constraints on the R-symmetry in a large class of supersymmetric grand unified theory, consistent treatment of the quantum anomaly of the R-symmetry in the superspace formalism of supergravity, and cosmological consequences of spontaneous breaking of a discrete R-symmetry.
In addition, we also made substantial progress on how to test the so-called pure gravity mediation model by the LHC experiments and the cosmic ray experiments, where the R-symmetry plays important roles.

Free Research Field

素粒子理論