NLO corrections to ${\chi }_{bJ}$ to two-$J/\psi$ exclusive decay processes

Abstract

The next-to-leading order QCD corrections for ${\chi }_{bJ}$, the p-wave bottomonium, to $J/\psi$ pair decay processes are evaluated utilizing NRQCD factorization formalism. The scale dependence of ${\chi }_{b2}\to J/\psi J/\psi$ process is depressed with NLO corrections, and hence the uncertainties in the leading order results are greatly reduced. The total branch ratios are found to be the order of $10^{-5}$ for all three ${\chi }_{bJ}\to J/\psi J/\psi$ processes, indicating that they are observable in the LHC and super-B experiments.

To appear in PRD

References in corpus (9)

• Algorithm FIRE -- Feynman Integral REduction
• $Apart: A Generalized Mathematica Apart Function
• QCD corrections to J/psi plus eta_c production in e+e- annihilation at sqrt{s}=10.6 GeV
• $O({\alpha }_s{v}^2)$ correction to $e^{+}{e}^{-}\to J/\psi +{\eta }_c$ at $B$ factories
• 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?
• Pseudoscalar Quarkonium Exclusive Decays to Vector Meson Pair
• Search for double charmonium decays of the P-wave spin-triplet bottomonium states
• Reconciling the nonrelativistic QCD prediction and the $J/\psi \to 3\gamma$ data

Cited by in corpus (4)

• The Exclusive Decay of Upsilon into $h_c$, the $X(3940)$ and $X(4160)$
• NLO QCD Corrections for $J/\psi +c+\bar{c}$ Production in Photon-Photon Collision
• Relativistic corrections to ${\rm Y}$ exclusive decay into double $S-$wave charmonia
• NLO QCD Corrections for ${\chi }_{cJ}$ Inclusive Production at $B$ Factories