Exclusive decay of ${\rm Y}$ into $J/\psi +{\chi }_{c0,1,2}$

Abstract

We study the ${\rm Y}$ exclusive decay into double charmonium, specifically, the $S$-wave charmonium $J/\psi$ plus the $P$-wave charmonium ${\chi }_{c0,1,2}$ in the NRQCD factorization framework. Three distinct decay mechanisms, i.e., the strong, electromagnetic and radiative decay channels are included and their interference effects are investigated. The decay processes ${\rm Y}(1S,2S,3S)\to J/\psi +{\chi }_{c1,0}$ are predicted to have the branching fractions of order $10^{-6}$, which should be observed in the prospective Super $B$ factory.

22 pages, 9 figures, 3 tables

References in corpus (21)

• Heavy quarkonium: progress, puzzles, and opportunities
• Algorithm FIRE -- Feynman Integral REduction
• $Apart: A Generalized Mathematica Apart Function
• Relativistic corrections to $J/\psi$ exclusive and inclusive double charm production at B factories
• QCD corrections to J/psi plus eta_c production in e+e- annihilation at sqrt{s}=10.6 GeV
• Resummation of Relativistic Corrections to e+ e- -> J/psi+eta_c
• Reconciling the light-cone and nonrelativistic QCD approaches to calculating e+ e- -> J/psi + eta_c
• Factorization and NLO QCD correction in e^+ e^- \to J/ψ(ψ(2S))+ χ_{c0} at B Factories}
• $O({\alpha }_s{v}^2)$ correction to $e^{+}{e}^{-}\to J/\psi +{\eta }_c$ at $B$ factories
• Factorization theorems for exclusive heavy-quarkonium production
• Exclusive $et{a}_b$ decay to double $J/\psi$ at next-to-leading order in $alph{a}_s$
• Which hadronic decay modes are good for ${\eta }_b$ searching: double $J/\psi$ or something else?
• QCD corrections to e^+ e^- to J/ψ(ψ(2S))+χ_{cJ} (J=0,1,2) at B Factories
• Exclusive Double Charmonium Production from ${\rm Y}$ Decay
• Pseudoscalar Quarkonium Exclusive Decays to Vector Meson Pair
• $O({\alpha }_s)$ corrections to $J/\psi +{\chi }_{cJ}$ production at $B$ factories
• Relativistic Corrections to the Exclusive Decays of C-even Bottomonia into S-wave Charmonium Pairs
• Exclusive decay of P-wave Bottomonium into double J/ψ
• Search for double charmonium decays of the P-wave spin-triplet bottomonium states
• P-wave Quarkonium Decays to Meson Pairs
• First observation of exclusive ${\rm Y}(1S)$ and ${\rm Y}(2S)$ decays into light hadrons

Cited by in corpus (10)

• QCD and strongly coupled gauge theories: challenges and perspectives
• The Exclusive Decay of Upsilon into $h_c$, the $X(3940)$ and $X(4160)$
• $Z$ boson radiative decays to a $S$-wave quarkonium at NNLO and NLL accuracy
• $Z$ boson radiative decays to a $P$-wave quarkonium at NNLO and LL accuracy
• Evidence of ${\rm Y}(1S)\to J/\psi +{\chi }_{c1}$ and search for double-charmonium production in ${\rm Y}(1S)$ and ${\rm Y}(2S)$ decays
• $\mathcal{O}({\alpha }_s^2)$ corrections to $J/\psi +{\chi }_{c0,1,2}$ production at $B$ factories
• Next-to-leading-order QCD corrections to a vector bottomonium radiative decay into a charmonium
• NLO corrections to ${\chi }_{bJ}$ to two-$J/\psi$ exclusive decay processes
• Relativistic corrections to ${\rm Y}$ exclusive decay into double $S-$wave charmonia
• Experimental review of the ${\rm Y}(1S,2S,3S)$ physics at $e^{+}{e}^{-}$ colliders and the LHC