Updated bounds on milli-charged particles

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Published 19 May 2000 • Published under licence by IOP Publishing Ltd
, , Citation Sacha Davidson et al JHEP05(2000)003 DOI 10.1088/1126-6708/2000/05/003

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Author affiliations

1 Theoretical Physics, Oxford University, 1 Keble Road, Oxford OX1 3NP, Great Britain

2 NORDITA, Blegdamsvej 17, 2100 Copenhagen, Denmark

3 Max-Planck-Institut für Physik (Werner-Heisenberg-Institut), Föhringer Ring 6, 80805 München, Germany

Dates

  1. Received 18 January 2000
  2. Accepted 2 May 2000
  3. Published

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1126-6708/2000/05/003

Abstract

We update the bounds on fermions with electric charge epsilone and mass mepsilon. For mepsilon ≲ me we find 10−15 ≲ epsilon < 1 is excluded by laboratory experiments, astrophysics and cosmology. For larger masses, the limits are less restrictive and depend on mepsilon. For milli-charged neutrinos, the limits are stronger, especially if the different flavors mix as suggested by current experimental evidence.

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Two erratum pages were added to the end of the published paper on 17 October 2000.

10.1088/1126-6708/2000/05/003