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Search for light scalar Dark Matter candidate with AURIGA detector

A search for a new scalar field, called moduli, has been performed using the cryogenic resonant-mass AURIGA detector. Predicted by string theory, moduli may provide a significant contribution to the dark matter (DM) component of our universe. If this is the case, the interaction of ordinary matter w...

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Published in:arXiv.org 2016-07
Main Authors: Branca, Antonio, Bonaldi, Michele, Cerdonio, Massimo, Conti, Livia, Falferi, Paolo, Marin, Francesco, Mezzena, Renato, Ortolan, Antonello, Prodi, Giovanni A, Taffarello, Luca, Vedovato, Gabriele, Vinante, Andrea, Vitale, Stefano, Zendri, Jean-Pierre
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creator Branca, Antonio
Bonaldi, Michele
Cerdonio, Massimo
Conti, Livia
Falferi, Paolo
Marin, Francesco
Mezzena, Renato
Ortolan, Antonello
Prodi, Giovanni A
Taffarello, Luca
Vedovato, Gabriele
Vinante, Andrea
Vitale, Stefano
Zendri, Jean-Pierre
description A search for a new scalar field, called moduli, has been performed using the cryogenic resonant-mass AURIGA detector. Predicted by string theory, moduli may provide a significant contribution to the dark matter (DM) component of our universe. If this is the case, the interaction of ordinary matter with the local DM moduli, forming the Galaxy halo, will cause an oscillation of solid bodies with a frequency corresponding to the mass of moduli. In the sensitive band of AURIGA, some \(100\,\mathrm{Hz}\) at around \(1\,\mathrm{kHz}\), the expected signal, with a \(Q=\tfrac{\triangle f}{f}\sim10^{6}\), is a narrow peak, \(\triangle f\sim1\,\mathrm{mHz}\). Here the detector strain sensitivity is \(h_{s}\sim2\times10^{-21}\,\mathrm{Hz^{-1/2}}\), within a factor of \(2\). These numbers translate to upper limits at \(95\%\,C.L.\) on the moduli coupling to ordinary matter \(d_{e}\lesssim10^{-5}\) around masses \(m_{\phi}=3.6\cdot10^{-12}\,\mathrm{eV}\), for the standard DM halo model with \(\rho_{DM}=0.3\,\mathrm{GeV/cm^{3}}\).
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subjects Dark matter
Galaxies
Sensors
String theory
Universe
title Search for light scalar Dark Matter candidate with AURIGA detector
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