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- W3178106926 abstract "We consider Riemann-Cartan gravity with minimal Palatini action, which is classically equivalent to Einstein gravity. Following the ideas of L.Lipatov cite{LipGrav} we propose the effective action for this theory aimed at the description of the high-energy scattering of gravitating particles in the multi - Regge kinematics. For that purpose we add to the Palatini action the new terms responsible for the interaction of gravitational quanta with certain collective excitations that replace exchange by multiple gravitational excitations. We propose the heuristic explanation of its particular form based on an analogy to the reggeon field theory of QCD. We argue that Regge kinematics assumes the appearance of an effective two - dimensional model describing the high - energy scattering similar to that of QCD. Such a model may be formulated in a way leading to our final effective theory, which contains interaction between the ordinary quanta of spin connection and vielbein with their effective counterparts that pretend to the role of the gravitational reggeons." @default.
- W3178106926 created "2021-07-19" @default.
- W3178106926 creator A5015618345 @default.
- W3178106926 creator A5039215732 @default.
- W3178106926 creator A5045761826 @default.
- W3178106926 date "2021-07-01" @default.
- W3178106926 modified "2023-09-26" @default.
- W3178106926 title "High energy scattering in Einstein–Cartan gravity" @default.
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