Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Understanding the MiniBooNE and the muon and electron $g-2$ anomalies
  with a light $Z'$ and a second Higgs doublet   Two of the most widely studied extensions of the Standard Model (SM) are $a)$
the addition of a new $U(1)$ symmetry to its existing gauge groups, and $b)$
the expansion of its scalar sector to incorporate a second Higgs doublet. We
show that when combined, they allow us to understand the electron-like event
excess seen in the MiniBooNE (MB) experiment as well as account for the
observed anomalous values of the muon magnetic moment. A light $Z'$ associated
with an additional $U(1)$ coupled to baryons and to the dark sector, with
flavor non-universal couplings to leptons, in conjunction with a second Higgs
doublet is capable of explaining the MB excess. The $Z'$ obtains its mass from
a dark singlet scalar, which mixes with the two Higgs doublets. Choosing
benchmark parameter values, we show that $U(1)_{B-3L_\tau}$, which is
anomaly-free, and $U(1)_B$, both provide (phenomenologically) equally good
solutions to the excess. We also point out the other (anomaly-free) $U(1)$
choices that may be possible upon fuller exploration of the parameter space. We
obtain very good matches to the energy and angular distributions for neutrinos
and anti-neutrinos in MB. The extended Higgs sector has two light CP-even
scalars, $h'$ and $H$, and their masses and couplings are such that in
principle, both contribute to help explain the MB excess as well as the present
observed values of the muon and electron $g-2$. We discuss the constraints on
our model as well as future tests. Our work underlines the role that light
scalars may play in understanding present-day low-energy anomalies. It also
points to the possible existence of portals to the dark sector, i.e., a light
gauge boson field $(Z')$ and a dark neutrino which mixes with the active
neutrinos, as well as a dark sector light scalar which mixes with the extended
Higgs sector.

18
The categories of this paper are: econ
13
The categories of this paper are: quant-ph
16
The categories of this paper are: stat
21
The categories of this paper are: adap-org
37
The categories of this paper are: supr-con
27
The categories of this paper are: comp-gas
1
The categories of this paper are: cs
17
The categories of this paper are: q-fin
35
The categories of this paper are: mtrl-th
11
The categories of this paper are: hep-lat
29
The categories of this paper are: funct-an
31
The categories of this paper are: ao-sci
30
The categories of this paper are: q-alg
2
The categories of this paper are: math
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The categories of this paper are: astro-ph
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The categories of this paper are: q-bio