Energy Spectra and Energy Correlations in the Decay $H\to ZZ\to {\mu }^{+}{\mu }^{-}{\mu }^{+}{\mu }^{-}$

Abstract

It is shown that in the sequential decay $H\to ZZ\to (f_1\overline{f_1})+(f_2\overline{f_2})$, the energy distribution of the final state particles provides a simple and powerful test of the $HZZ$ vertex. For a standard Higgs boson, the energy spectrum of any final fermion, in the rest frame of $H$, is predicted to be $d\Gamma /dx\sim 1+{\beta }^4-2(x-1{)}^2$, with $\beta =\sqrt{1-4m_Z^2/m_H^2}$ and $1-\beta \le x=4E/m_H\le 1+\beta$. By contrast, the spectrum for a pseudoscalar Higgs is $d\Gamma /dx\sim {\beta }^2+(x-1{)}^2$. There are characteristic energy correlations between $f_1$ and $f_2$ and between $f_1$ and $\overline{f_2}$. These considerations are applied to the ``gold--plated'' reaction $H\to ZZ\to {\mu }^{+}{\mu }^{-}{\mu }^{+}{\mu }^{-}$, including possible effects of CP--violation in the $HZZ$ coupling. Our formalism also yields the energy spectra and correlations of leptons in the decay $H\to W^{+}{W}^{-}\to l^{+}{\nu }_l{l}^{-}\overline{{\nu }_l}$.

14 pages + 4 figures

References in corpus (6)

• Higgs Bosons: Intermediate Mass Range at e+e- Colliders
• CP--odd Correlation in the Decay of Neutral Higgs Boson into $ZZ$, $W^{+}{W}^{-}$, or $t\bar{t}$
• Probing CP Violation Via Higgs Decays to Four Leptons
• CP Violation in the Decay of Neutral Higgs Boson into $t-\bar{t}$ or $W^{+}-W^{-}$
• Angular and energy correlations in Higgs decay
• Energy correlation and asymmetry of secondary leptons in $H\to t\bar{t}$ and $H\to W^{+}{W}^{-}$

Cited by in corpus (27)

• Constraints on the spin-parity and anomalous HVV couplings of the Higgs boson in proton collisions at 7 and 8 TeV
• Precise predictions for the Higgs-boson decay H -> W W/Z Z -> 4 leptons
• Radiative corrections to the semileptonic and hadronic Higgs-boson decays H -> W W/Z Z -> 4 fermions
• Beyond Geolocating: Constraining Higher Dimensional Operators in $H\to 4\ell$ with Off-Shell Production and More
• Constraints on anomalous Higgs boson couplings to vector bosons and fermions in its production and decay using the four-lepton final state
• Higgs CP properties using the tau decay modes at the ILC
• Precision studies of the Higgs boson decay channel H -> ZZ -> 4l with MEKD
• Can the 126 GeV boson be a pseudoscalar?
• Determination of the Higgs CP mixing angle in the tau decay channels at the LHC including the Drell-Yan background
• Probing the Higgs Couplings to Photons in $h\to 4\ell$ at the LHC
• Geolocating the Higgs Boson Candidate at the LHC
• Precision calculations for h->WW/ZZ->4 fermions in the Two-Higgs-Doublet Model with PROPHECY4F
• Pseudoscalar Higgs Bosons at the LHC: Production and Decays into Electroweak Gauge Bosons Revisited
• The role of interference in unraveling the ZZ-couplings of the newly discovered boson at the LHC
• Vector boson polarizations in the decay of the Standard Model Higgs
• QCD Corrections to Decay Distributions of Neutral Higgs Bosons with (In)definite CP Parity
• Testing $CP$ in the Bjorken process
• Golden Probe of Electroweak Symmetry Breaking
• Golden Probe of the Top Yukawa
• Precision calculations for $h\to WW/ZZ\to 4$ fermions in a Singlet Extension of the Standard Model with Prophecy4f
• The Higgs Boson in the Standard Model - From LEP to LHC: Expectations, Searches, and Discovery of a Candidate
• Probing Higgs Sector CP Violation with Top Quarks at a Photon Linear Collider
• Polarized Z bosons from the decay of a Higgs boson produced in association with two jets at the LHC
• Constraining anomalous Higgs boson couplings to virtual photons
• Adding Pseudo-Observables to the Four-Lepton Experimentalist's Toolbox
• CP violation from spin-1 resonances in a left-right dynamical Higgs context
• NLO EW and QCD corrections to polarized ZZ production in the four-charged-lepton channel at the LHC