Physics
Scientific paper
Jul 1987
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1987phlb..193..168c&link_type=abstract
Physics Letters B, Volume 193, Issue 2-3, p. 168-170.
Physics
72
Scientific paper
A mirror universe consisting of particles and forces isomorphic to ordinary particles and forces would couple to our universe only through gravity. Hypothetical particles displaying both types of forces would forge an additional link between the two universes. Due to radiative corrections, mirror particles would carry conventional charges of order ɛe {10-3-10-6. This seems to offer a possible explanation of the anomalous observed value for the positronium decay rate [3]. However, ɛ<3×10-8 can be deduced from the successful standard model prediction of the primordial 4He abundance. A mirror-model explanation of the positronium anomaly is thereby ruled out, as is any other observable link to a hypothetical mirror universe.
Carlson Eric D.
Glashow Sheldon L.
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