Nuclearite search with the MACRO detector at Gran Sasso

The MACRO Collaboration:     M. Ambrosio - et al.

doi:doi:10.1007/s100520000142

EPJ

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2018 Impact factor 4.843

Particles and Fields

Eur. Phys. J. C 13, 453-458
DOI 10.1007/s100520000142

Nuclearite search with the MACRO detector at Gran Sasso

The MACRO Collaboration

M. Ambrosio $^{\rm 12}$ - et al.

¹² Dipartimento di Fisica dell'Università di Napoli and INFN, 80125 Napoli, Italy

Abstract
In this paper we present the results of a search for nuclearites in the penetrating cosmic radiation using the scintillator and track-etch subdetectors of the MACRO apparatus. The analyses cover the $\beta =v/c$ range at the detector depth (3700 $\,{\mathrm {hg/cm^2}}$ ) $10^{-5} < \beta < 1$ ; for $\beta = 2 \times 10^{-3}$ the flux limit is $2.7\times 10^{-16} \hbox{$\,{\mathrm {cm^{-2}s^{-1}sr^{-1}}}$ }$ for an isotropic flux of nuclearites, and twice this value for a flux of downgoing nuclearites.

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