Production of an electron-positron pair and a photon from the vacuum in a radiation-dominated universe

Details Production of an electron-positron pair and a photon from the vacuum in a radiation-dominated universe Production of an electron-positron pair and a photon from the vacuum in a radiation-dominated universe

Feb 1991

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1991svphj..34..136t&link_type=abstract

Soviet Physics Journal, Volume 34, Issue 2, pp.136-140

Physics

Scientific paper

A study is made of the production of an electron-positron pair and a photon from the vacuum in a Robertson-Walker space with metric ds2=a2(η)(dη2-dx2-dy2-dx2). In Minkowski space, this process is forbidden by the conservation laws. The differential probability of the process is calculated, and its behavior in various kinematic regions is investigated. The probability of the process is estimated numerically for times close to the electron Compton time, and the probability of production of a pair and photon from the vacuum is compared with the probability of pair production in the absence of radiative coupling.

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