A modified naturalness principle and its experimental tests
By M. Farina, Duccio Pappadopulo, Alessandro Strumia. 2013
151 citations recorded by the source corpus.
A bstractMotivated 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.
Subfields: Astronomy and Astrophysics, Nuclear and High Energy Physics
View Paper: https://www.semanticscholar.org/paper/2d6aec68d40adc70cf8325ac53f8b1404aa32e21
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Citations in the corpus
- Dynamically induced Planck scale and inflation (2015, methodology): “On the contrary, heavy new particles coupled to the Higgs boson would lead to large physical corrections to the Higgs mass: the associated fine-tuning could be probed by experiments [5–7].”
- Accidental composite dark matter (2015, background): “Allowing for techni-quark masses (if lighter than about 1 TeV, they do not induce unnaturally large corrections to the Higgs mass [23]) and for an order one θTC modifies the mass spectrum of the theory, inducing electric dipole moments (EDMs) for TCb that leads to a sizeable Dark Matter direct detec”
- Higgs Boson studies at future particle colliders (2019, background): “Amazingly, this simple and well motivated class of models is hardly directly detectable in view of its loop suppressed spin independent cross section (see Table 1 in [127]).”
- Standard Model—axion—seesaw—Higgs portal inflation. Five problems of particle physics and cosmology solved in one stroke (2016, background): “neutrinos below ∼ 106 GeV (due to their effect in one-loop corrections to m(2)σ [232]), and Q, Q̃ vector quarks below ∼ 105 GeV (as required by two-loop corrections to m(2)H involving hypercharge gauge bosons and Q, Q̃ quarks [233]).”
- Agravity (2014, background): “Vanishing of quadratic divergences leads to a modified version of naturalness, where the weak scale can be naturally small even in absence of new physics at the weak scale [47] designed to protect the Higgs mass, such as supersymmetry or technicolor.”