Kinetic Description of Vacuum Creation of Massive Vector Bosons
- Fachbereich Physik, Universitaet Rostock (Germany)
- Saratov State University, Saratov (Russian Federation)
In the simple model of massive vector field in a flat spacetime, we derive the kinetic equation of non-Markovian type describing the vacuum pair creation under action of external fields of different nature. We use for this aim the nonperturbative methods of kinetic theory in combination with a new element when the transition of the instantaneous quasiparticle representation is realized within the oscillator (holomorphic) representation. We study in detail the process of vacuum creation of vector bosons generated by a time-dependent boson mass in accordance with the framework of a conformal-invariant scalar-tensor gravitational theory and its cosmological application. It is indicated that the choice of the equation of state allows one to obtain a number density of vector bosons that is sufficient to explain the observed number density of photons in the cosmic microwave background radiation.
- OSTI ID:
- 20692811
- Journal Information:
- Physics of Atomic Nuclei, Vol. 68, Issue 6; Other Information: Translated from Yadernaya Fizika, ISSN 0044-0027, 68, 1087-1094 (No. 6, 2005); DOI: 10.1134/1.1954833; (c) 2005 Pleiades Publishing, Inc; Country of input: International Atomic Energy Agency (IAEA); TN:; ISSN 1063-7788
- Country of Publication:
- United States
- Language:
- English
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