Testing gravitational phenomena at nuclear scale

2014 Fiscal Year Final Research Report

• Project/Area Number: 24654070
• Research Category: Grant-in-Aid for Challenging Exploratory Research
• Allocation Type: Multi-year Fund
• Research Field: Particle/Nuclear/Cosmic ray/Astro physics
• Research Institution: Rikkyo University
• Principal Investigator: MURATA Jiro 立教大学, 理学部, 教授 (50360649)
• Research Collaborator: TANAKA Saki 立教大学大学院, 理学研究科
• Project Period (FY): 2012-04-01 – 2015-03-31
• Keywords: 原子核（実験） / 原子核スケール / 余剰次元 / 逆二乗則の検証 / 重力

Outline of Final Research Achievements

Test of gravitational inverse law attracts great interest on a scope of searching large extra dimension. In this project, possible strong gravitational field at a very short range around nuclear scale is searched, by means of executing electron nuclear scattering experiments. We also evaluated the maximum allowed strength of gravity, by means of re-analysis of existing data from micron to the LHC scales. The experiment was performed as a double electron scattering measurement to probe a large geodetic precession due to strong gravitational field around nuclei. We succeeded to evaluate the upper limit of the strong gravity at nuclear scale.

Free Research Field

数物系科学