Updated Bounds on Milli-Charged Particles

Details Updated Bounds on Milli-Charged Particles Updated Bounds on Milli-Charged Particles

2000-01-18

arxiv.org/abs/hep-ph/0001179v2

JHEP 0005:003,2000

Physics

High Energy Physics

High Energy Physics - Phenomenology

15 pages, 1 figure, minor changes, matches version to be published in JHEP

Scientific paper

10.1088/1126-6708/2000/05/003

We update the bounds on fermions with electric charge $\epsilon e$ and mass $m_\epsilon$. For $m_\epsilon\lsim m_e$ we find $10^{-15}\lsim\epsilon<1$ is excluded by laboratory experiments, astrophysics and cosmology. For larger masses, the limits are less restrictive and depend on $m_\epsilon$. For milli-charged neutrinos, the limits are stronger, especially if the different flavors mix as suggested by current experimental evidence.

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