A modified naturalness principle and its experimental tests
Abstract
Motivated by LHC results, we modify the usual criterion for naturalness by ignoring the uncomputable power divergences. The Standard Model satisfies the modified criterion ('finite naturalness') for the measured values of its parameters. Extensions of the SM motivated by observations (Dark Matter, neutrino masses, the strong CP problem, vacuum instability, inflation) satisfy finite naturalness in special ranges of their parameter spaces which often imply new particles below a few TeV. Finite naturalness bounds are weaker than usual naturalness bounds because any new particle with SM gauge interactions gives a finite contribution to the Higgs mass at two loop order.
Cite
@article{arxiv.1303.7244,
title = {A modified naturalness principle and its experimental tests},
author = {Marco Farina and Duccio Pappadopulo and Alessandro Strumia},
journal= {arXiv preprint arXiv:1303.7244},
year = {2015}
}
Comments
17 pages, 3 figures. v3: final version uploaded, references added, numerical error in the last column of table 1 fixed