Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Measuring properties of a Heavy Higgs boson in the $H\to ZZ \to 4\ell$
  decay   In many extensions of the standard model, there exist a few extra Higgs
bosons. Suppose a heavy neutral Higgs boson H is discovered at the LHC, one
could then investigate CP and CPT~ properties of its couplings to a pair of $Z$
bosons through $H \to ZZ \to 4\ell$. We use the helicity-amplitude method to
write down the most general form for the angular distributions of the four
final-state leptons, which can cover the case of CP-even, -odd, and -mixed
state for the Higgs boson. We figure out there are 9 types of angular
observables and all the $H$ couplings to $Z$ bosons can be fully determined by
exploiting them. A Higgs-boson mass of 260 GeV below the $t\bar t$ threshold is
illustrated with full details. With a total of $10^3$ events of $H \to ZZ \to
4\ell$, one can determine the couplings up to 12-20\% uncertainties.

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The categories of this paper are: hep-th
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The categories of this paper are: mtrl-th
25
The categories of this paper are: patt-sol
27
The categories of this paper are: comp-gas
34
The categories of this paper are: chem-ph
31
The categories of this paper are: ao-sci
18
The categories of this paper are: econ
14
The categories of this paper are: math-ph
4
The categories of this paper are: cond-mat
22
The categories of this paper are: chao-dyn
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The categories of this paper are: nlin
29
The categories of this paper are: funct-an
26
The categories of this paper are: bayes-an
28
The categories of this paper are: alg-geom
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The categories of this paper are: astro-ph
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The categories of this paper are: solv-int