TY  - JOUR
AU  - Ferreiro, A.
AU  - Navarro-Salas, J.
PY  - 2019
DA  - 2019//
TI  - Running couplings from adiabatic regularization
T2  - Phys. Lett. B
JO  - Physics Letters B
SP  - 81
EP  - 85
VL  - 792
PB  - Elsevier Science Bv
KW  - Adiabatic renormalization
KW  - Running couplings
KW  - Semiclassical Maxwell-Einstein equations
AB  - We extend the adiabatic regularization method by introducing an arbitrary mass scale μin the construction of the subtraction terms. This allows us to obtain, in a very robust way, the running of the coupling constants by demanding mu-invariance of the effective semiclassical (Maxwell-Einstein) equations. In particular, we get the running of the electric charge of perturbative quantum electrodynamics. Furthermore, the method brings about a renormalization of the cosmological constant and the Newtonian gravitational constant. The running obtained for these dimensionful coupling constants has new relevant (non-logarithmic) contributions, not predicted by dimensional regularization.
SN  - 0370-2693
UR  - https://arxiv.org/abs/1812.05564
UR  - https://doi.org/10.1016/j.physletb.2019.03.026
DO  - 10.1016/j.physletb.2019.03.026
LA  - English
N1  - WOS:000466802100015
ID  - Ferreiro+Navarro-Salas2019
ER  -