SU(2) × U(1) vacuum and the centauro events

Details SU(2) × U(1) vacuum and the centauro events SU(2) × U(1) vacuum and the centauro events

Jul 1984

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1984phlb..142...23k&link_type=abstract

Physics Letters B, Volume 142, Issue 1-2, p. 23-27.

Physics

2

Scientific paper

We propose that the ``fireballs'' invoked to explain the Centauro events are bubbles of a metastable superdense state of nuclear matter, created in high energy (E ~ 1015 eV) cosmic ray collisions at the top of the atmosphere. If these bubbles are created with a Lorentz factor γ ⋍ 10 at their Cm frame, the objections against the origin of these events in cosmic ray interactions are overcome. Assuming further, that the Centauro events are due to the explosive decay of these metastable ``bubbles'', a relationship between their lifetime, τ, and the threshold energy for bubble formation, Eth, is derived. The minimum lifetime consistent with such an interpretation is τ ~ 10-8 s, while the Eth appears to be insensitive to the value of τ and always close to Eth~ 1015 eV. Finally it is speculated that if the available CM energy is thermalized in such collisions, these bubbles might be manifestations of excitations of the SU(2) × U(1) false vacuum. The absence of π0's in the Centauro events is then explained by the decay modes of these excitations.

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