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 Hz at around 1 kHz, the expected signal, with Q= f/f∼106, is a narrow peak, f∼1 mHz. Here the detector strain sensitivity is hs∼2×10-21 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 (de+dme) 10-5 around masses mφ=3.6×10-12 eV, for the standard DM halo model with ρDM=0.3 GeV/cm3.

Branca, A., Bonaldi, M., Cerdonio, M., Conti, L., Falferi, P., Marin, F., et al. (2017). Search for an Ultralight Scalar Dark Matter Candidate with the AURIGA Detector. PHYSICAL REVIEW LETTERS, 118(2) [10.1103/PhysRevLett.118.021302].

Search for an Ultralight Scalar Dark Matter Candidate with the AURIGA Detector

Branca A.
;
2017

Abstract

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 Hz at around 1 kHz, the expected signal, with Q= f/f∼106, is a narrow peak, f∼1 mHz. Here the detector strain sensitivity is hs∼2×10-21 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 (de+dme) 10-5 around masses mφ=3.6×10-12 eV, for the standard DM halo model with ρDM=0.3 GeV/cm3.
Articolo in rivista - Articolo scientifico
moduli, alps, AURIGA, resonant detector, dark matter;
English
2017
118
2
021302
none
Branca, A., Bonaldi, M., Cerdonio, M., Conti, L., Falferi, P., Marin, F., et al. (2017). Search for an Ultralight Scalar Dark Matter Candidate with the AURIGA Detector. PHYSICAL REVIEW LETTERS, 118(2) [10.1103/PhysRevLett.118.021302].
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/10281/388671
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