Open AccessAbsence of cosmological constant problem in special relativistic field theory of gravity: one-loop renormalization group
Author(s) -
Raúl Carballo-Rubio,
Carlos Barceló,
Luis J. Garay
Publication year - 2015
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/600/1/012032
Subject(s) - physics , cosmological constant , renormalization group , loop (graph theory) , mathematical physics , renormalization , constant (computer programming) , quantum electrodynamics , field theory (psychology) , field (mathematics) , theoretical physics , mathematics , computer science , combinatorics , pure mathematics , programming language
There exists a nonlinear theory of gravity which is not structurally equivalent to general relativity and that, in the non-interacting limit, describes a free massless particle with helicity ±2. We have recently shown that this theory can be understood as the result of self-coupling, in complete parallelism to the well-known case of general relativity. This special relativistic field theory of gravity exhibits a decoupling of vacuum zero-point energies of matter and passes all the known experimental tests in gravitation. It is explicitly demonstrated that there is no flow of the effective cosmological constant under the action of the renormalization group at one-loop level, while simple symmetry arguments show that this would continue to be true for higher-loop corrections. The important lesson is that just mild local assumptions concerning the nature of the particle mediating the gravitational interactions are enough to motivate theories which are free of the cosmological constant problem. © Published under licence by IOP Publishing Ltd.Peer Reviewe