22–26 Jun 2015
Paraninfo, Universidad de Zaragoza
Europe/Berlin timezone

Hidden photon CDM search at Tokyo

25 Jun 2015, 17:40
20m
Aula Magna (Paraninfo, Universidad de Zaragoza)

Aula Magna

Paraninfo, Universidad de Zaragoza

Plaza Basilio Paraiso 4, 50004 Zaragoza

Speaker

Mr Jun'ya Suzuki (Department of Physics, School of Science, The University of Tokyo)

Description

We report on a search for hidden photon cold dark matter (HP CDM) using a novel technique with a dish antenna. We constructed two independent apparatus: one is aiming at the detection of the HP with a mass of $\sim5\times10^{-5}\,\rm{eV}$ utilizing a commercially available parabolic antenna facing on a plane reflector, and the other is for a mass of $\sim\,\rm{eV}$ which employs optical instruments. From the result of the measurement, we found no evidence for the existence of HP CDM and set upper limits on the photon-HP mixing parameter $\chi$.

Primary author

Mr Jun'ya Suzuki (Department of Physics, School of Science, The University of Tokyo)

Co-authors

Prof. Makoto Minowa (Department of Physics, School of Science, The University of Tokyo) Mr Tomoki Horie (Department of Physics, School of Science, The University of Tokyo) Mr Yoshizumi Inoue (International Center for Elementary Particle Physics, The University of Tokyo)

Presentation materials