Higgs boson decays to $B_c$ meson in the fragmentation-function approach

Abstract

In the paper, we present a calculation of the decay widths for the Higgs boson decays to the $B_c$, $B_c^{\ast }$, $B_c(2^1{S}_0)$ and $B_c^{\ast }(2^3{S}_1)$ mesons using the fragmentation-function approach. In the calculation, the fragmentation functions up to order ${\alpha }_s^3$ based on the nonrelativistic QCD factorization theory are used, and the decay widths for $H\to Q+X$ and $H\to g+X$ at the partonic level are calculated up to order ${\alpha }_s$. The large logarithms of $m_H^2/m_{Bc}^2$ are resummed up to next-to-leading logarithmic accuracy by solving the evolution equations for the running quark masses and the fragmentation functions. Compared to the leading-order decay widths based on the nonrelativistic QCD approach, the decay widths based on the fragmentation-function approach that include the higher-order QCD corrections are reduced significantly. Our numerical results show that there are about $1.2\times 10^5$ $B_c$ events via the Higgs decays to be produced at the HL-LHC with $3a{b}^{-1}$, and about $1.6\times 10^6$ $B_c$ events via the Higgs decays to be produced at the HE-LHC with $15a{b}^{-1}$.

arXiv comment12 pages, 9 figures

References in corpus (56)

• Observation of a new particle in the search for the Standard Model Higgs boson with the ATLAS detector at the LHC
• Observation of a new boson at a mass of 125 GeV with the CMS experiment at the LHC
• Rigorous QCD Analysis of Inclusive Annihilation and Production of Heavy Quarkonium
• Generating Feynman Diagrams and Amplitudes with FeynArts 3
• Measurements of the Higgs boson production and decay rates and constraints on its couplings from a combined ATLAS and CMS analysis of the LHC $pp$ collision data at $\sqrt{s}=$ 7 and 8 TeV
• New Developments in FeynCalc 9.0
• The 4-loop quark mass anomalous dimension and the invariant quark mass
• Combined measurements of Higgs boson production and decay using up to $80$ fb${}^{-1}$ of proton-proton collision data at $\sqrt{s}=$ 13 TeV collected with the ATLAS experiment
• The three loop relation between the \bar {MS} and the pole quark masses
• Combined measurements of Higgs boson couplings in proton-proton collisions at $\sqrt{s}=$ 13 TeV
• Quarkonium Wave Functions at the Origin
• Quark Mass Anomalous Dimension to alpha_s**4
• Observation of Higgs boson production in association with a top quark pair at the LHC with the ATLAS detector
• Observation of Higgs boson decay to bottom quarks
• Observation of $H\to b\bar{b}$ decays and $VH$ production with the ATLAS detector
• Version 3 of {\tt RunDec} and {\tt CRunDec}
• Quark mass relations to four-loop order
• Observation of $\mathrm{t}\overline{\mathrm{t}}$H production
• Observation of the Higgs boson decay to a pair of tau leptons with the CMS detector
• Scalar Correlator at O(alpha_s^4), Higgs Decay into b-quarks and Bounds on the Light Quark Masses
• Correlator of the quark scalar currents and Γ_{tot}(H --> hadrons) at O(α_s^3) in pQCD
• Short Distance Mass of a Heavy Quark at Order α_s^3
• Perturbative QCD Fragmentation Functions for $B_c$ and $B_c^{\ast }$ Production
• Higgs boson decays to quarkonia and the Hccbar coupling
• Second Order QCD Corrections to Scalar and Pseudoscalar Higgs Decays into Massive Bottom Quarks
• The large top quark mass expansion for Higgs boson decays into bottom quarks and into gluons
• Measurements of properties of the Higgs boson decaying to a W boson pair in pp collisions at $\sqrt{s}=$ 13 TeV
• Exclusive Radiative Higgs Decays as Probes of Light-Quark Yukawa Couplings
• Quark Mass Effects in Fermionic Decays of the Higgs Boson in $O({\alpha }_s^2)$ Perturbative QCD
• Relativistic corrections to Higgs boson decays to quarkonia
• Mesons with Beauty and Charm: New Horizons in Spectroscopy
• Comparative Study of the Hadronic Production of $B_c$ Mesons
• The excited bottom-charmed mesons in a nonrelativistic quark model
• Study of $(W/Z)H$ production and Higgs boson couplings using $H\to W{W}^{\ast }$ decays with the ATLAS detector
• Combined measurement of differential and total cross sections in the $H\to \gamma \gamma$ and the $H\to Z{Z}^{\ast }\to 4\ell$ decay channels at $\sqrt{s}=13$ TeV with the ATLAS detector
• Calculating Fragmentation Functions from Definitions
• The QCD NLO fragmentation functions for $c$ or $\bar{b}$ quark to $B_c$ or $B_c^{\ast }$ meson and their application
• New approach to the resummation of logarithms in Higgs-boson decays to a vector quarkonium plus a photon
• Numerical solution of $Q^2$ evolution equations for fragmentation functions
• $B_c$ Production in Higgs Boson Decays
• Order $v^4$ corrections to Higgs boson decay into $J/\psi +\gamma$
• Constraining wrong-sign $hbb$ couplings with $h\to {\rm Y}\gamma$
• Addendum: New approach to the resummation of logarithms in Higgs-boson decays to a vector quarkonium plus a photon [Phys. Rev. D 95, 054018 (2017)]
• Fragmentation functions for gluon into $B_c$ or $B_c^{\ast }$ meson
• Heavy $P$-wave quarkonium production via Higgs decays
• Higgs boson decays into a pair of heavy vector quarkonia
• Gluon fragmentation into $B_c^{(\ast )}$ in NRQCD factorization
• Quarkonium production in SM Higgs decays
• Excited heavy quarkonium production in Higgs boson decays
• Next-to-leading order QCD corrections to Higgs boson decay to quarkonium plus a photon
• Next-to-leading order QCD corrections to the production of $B_c$ and $B_c^{\ast }$ through $W^{+}$-boson decays
• Probing the charm-Higgs Yukawa coupling via Higgs boson decay to $h_c$ plus a photon
• Higgs boson decay to charmonia via $c$-quark fragmentation
• Next-to-leading order QCD corrections to the decay of Higgs to vector meson and Z boson
• $J/\psi$ associated production with a bottom quark pair from the Higgs boson decay in next-to-leading order QCD
• Inclusive productions of ${\rm Y}(1S,2S,3S)$ and ${\chi }_b(1P,2P,3P)$ via the Higgs boson decay

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