Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: The $\hat{H}$-Parameter: An Oblique Higgs View   We study, from theoretical and phenomenological angles, the Higgs boson
oblique parameter $\hat{H}$, as the hallmark of off-shell Higgs physics.
$\hat{H}$ is defined as the Wilson coefficient of the sole dimension-6 operator
that modifies the Higgs boson propagator, within a Universal EFT.
Theoretically, we describe self-consistency conditions on Wilson coefficients,
derived from the K\"{a}ll\'{e}n-Lehmann representation. Phenomenologically, we
demonstrate that the process $gg\to h^\ast \to VV$ is insensitive to propagator
corrections from $\hat{H}$, and instead advertise four-top production as an
effective high-energy probe of off-shell Higgs behaviour, crucial to break flat
directions in the EFT.

30
The categories of this paper are: q-alg
5
The categories of this paper are: gr-qc
37
The categories of this paper are: supr-con
18
The categories of this paper are: econ
8
The categories of this paper are: hep-ex
14
The categories of this paper are: math-ph
20
The categories of this paper are: acc-phys
21
The categories of this paper are: adap-org
12
The categories of this paper are: nucl-th
29
The categories of this paper are: funct-an
16
The categories of this paper are: stat
25
The categories of this paper are: patt-sol
33
The categories of this paper are: plasm-ph
6
The categories of this paper are: astro-ph
28
The categories of this paper are: alg-geom
4
The categories of this paper are: cond-mat