Exploring the $$\Upsilon (6S)\rightarrow \chi _{bJ}\phi $$ Υ ( 6 S ) → χ b J ϕ and $$\Upsilon (6S)\rightarrow \chi _{bJ}\omega $$ Υ ( 6 S ) → χ b J ω hidden-bottom hadronic transitions
European physical journal. C, Particles and fields