NEWS: Nuclear emulsion WIMP search

Alexandrov, A. and Asada, T. and D'Ambrosio, N. and De Lellis, G. and Di Crescenzo, A. and Di Marco, N. and Furuya, S. and Gentile, V. and Hakamata, K. and Ishikawa, M. and Katsuragawa, T. and Kuwabara, K. and Machii, S. and Naka, T. and Pupilli, F. and Sirignano, C. and Tawara, Y. and Tioukov, V. and Umemoto, A. and Yoshimoto, M. (2015) NEWS: Nuclear emulsion WIMP search. Il nuovo cimento C, 38 (1). pp. 1-5. ISSN 1826-9885

ncc10895.pdf - Published Version

Download (359kB) | Preview
Official URL:


The most convincing candidate as main constituent of the dark matter in the Universe consists of Weakly Interacting Massive Particles (WIMPs). WIMPs must be electrically neutral and interact with a very low cross-section (σ < 10 −40 cm2) which makes them detectable in direct searches only through the observation of nuclear recoils induced by the WIMP rare scatterings. In the experiments carried out so far, recoiled nuclei are searched for as a signal over a background produced by Compton electrons and neutron scatterings. Signal found by some experiments have not been confirmed by other techniques. We propose an R&D program for a new experimental method able to observe the track of the scattered nucleus based on new developments in the nuclear emulsion technique. Nuclear emulsions would act both as the WIMP target and as the tracking detector able to reconstruct the direction of the recoiled nucleus. This unique characteristic would provide a new and unambiguous signature of the presence of the dark matter in our galaxy.

Item Type: Article
Uncontrolled Keywords: Dark matter (stellar, interstellar, galactic, and cosmological)
Subjects: 500 Scienze naturali e Matematica > 530 Fisica
Depositing User: Marina Spanti
Date Deposited: 26 May 2020 10:34
Last Modified: 26 May 2020 10:34

Actions (login required)

View Item View Item