Limits on millicharged matter from beam-dump experiments

E. Golowich, R. W. Robinett

Research output: Contribution to journalArticlepeer-review

39 Scopus citations


It has been proposed by Goldberg and Hall that the dark matter in galactic halos may be a type of shadow matter which interacts electromagnetically with ordinary matter (via a mixing effect) with effective charge Q=2e where 1. We put constraints on the mass (ms) and effective charge (i.e., ) of such particles by examining their possible production and detection in high-statistics proton beam-dump experiments. We find, for example, that 2×10-2 for 1ms200 MeV.

Original languageEnglish (US)
Pages (from-to)391-393
Number of pages3
JournalPhysical Review D
Issue number1
StatePublished - 1987

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy (miscellaneous)


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