An examination of the hierarchy problem beyond the Standard Model

Abstract

As the Higgs field is a weak isospin doublet of the SU(2) symmetry, the Standard Model requires any symmetry solution to the Higgs hierarchy problem to be SU(2) invariant, a constraint on the type of the symmetry. However, the hierarchy problem is about the size. The size of SU(2) for the Higgs boson can be calculated by $|$SU$_2(\ell)|=\ell^3-\ell$, having the Higgs mass $M_H=1/\ell_{H}\approx125$ GeV. To find the origin of the relative smallness of the Higgs mass in Planck units, alternatively, we search for the origin of such a large order assuming that it stems from an unknown field theory X beyond the Standard Model. Accordingly, this order, which corresponds to the quantum of the Higgs field, should determine the order of quantum/core of X symmetry, its automorphism group. We calculate $|$Aut(X)$|\approx8.2\times 10^{53}$, close to the order of the Monster sporadic group, $|\mathbb M|\approx 8.1\times 10^{53}$, the automorphism group of the Monster CFT, which we therefore conjecture to be X. To examine this conjecture, we calculate the mass of a scalar boson whose SU(2) order is determined by $|\mathbb M|$, observing a 125.4 GeV boson mass and a 245.7 GeV VEV. The Monster CFT does not have any spin-1 operators and Kac-Moody symmetry. Therefore, based on the CFT/(A)dS correspondences, it only describes pure gravity without the gauge fields. In search of a gauge theory candidate, we promote SU(2) (double cover of SO(3)), to SO($d$), and show that the same $\mathbb M$-symmetric vacuum configuration reaches the Planck mass of quantum gravity precisely at $d=32$ (with 99\% accuracy). Then, the spin-1 boson mass of the eligible gauge candidates, SO(32) and $E_8\times E_8$, is calculated to be 80.9 GeV. Further, several pieces of evidence are provided supporting the conjecture.