%0 Journal Article %1 Fleischer2011Exploring %A Fleischer, Robert %A Knegjens, Robert %A Ricciardi, Giulia %D 2011 %K eta %T Exploring CP Violation and \$\eta\$-\$\eta'\$ Mixing with the \$B^0\_s,d J/\eta^(\prime)\$ Systems %U http://arxiv.org/abs/1110.5490 %X The \$B^0\_s,d J/\eta^(\prime)\$ decays provide new terrain for exploring CP violation. After briefly discussing \$\eta\$-\$\eta'\$ mixing, we analyse the effective lifetimes and CP-violating observables of the \$B\_s\$ channels, which allow us to probe New-Physics effects in \$B^0\_s\$-\$B^0\_s\$ mixing. We have a critical look at these observables and show how hadronic corrections can be controlled by means of the \$B\_d\$ decays. Using measurements of the \$B^0\_s,dJ/\eta^(\prime)\$ branching ratios by the Belle collaboration, we discuss tests of the \$SU(3)\_F\$ flavour symmetry of strong interactions, obtain the first constraints on the hadronic parameters entering the \$B^0\_s,d J/\eta\$ system, and predict the \$B^0\_dJ/\eta'\$ branching ratio at the \$5\times10^-6\$ level. Furthermore, we present strategies for the determination of the \$\eta\$-\$\eta'\$ mixing parameters from the \$B^0\_s,d J/\eta^(\prime)\$ observables. We also observe that the \$B^0\_s,d J/\eta\$ and \$B^0\_s,d J/\eta'\$ decays are - from a formal point of view - analogous to the quark-antiquark and tetraquark descriptions of the \$f\_0(980)\$ in the \$B^0\_s,d J/f\_0(980)\$ channels, respectively.

@article{Fleischer2011Exploring, abstract = {The \$B^0\_{s,d} \to J/\psi \eta^{(\prime)}\$ decays provide new terrain for exploring CP violation. After briefly discussing \$\eta\$-\$\eta'\$ mixing, we analyse the effective lifetimes and CP-violating observables of the \$B\_s\$ channels, which allow us to probe New-Physics effects in \$B^0\_s\$-\$\bar B^0\_s\$ mixing. We have a critical look at these observables and show how hadronic corrections can be controlled by means of the \$B\_d\$ decays. Using measurements of the \$B^0\_{s,d}\to J/\psi \eta^{(\prime)}\$ branching ratios by the Belle collaboration, we discuss tests of the \$SU(3)\_F\$ flavour symmetry of strong interactions, obtain the first constraints on the hadronic parameters entering the \$B^0\_{s,d} \to J/\psi \eta\$ system, and predict the \$B^0\_d\to J/\psi \eta'\$ branching ratio at the \$5\times10^{-6}\$ level. Furthermore, we present strategies for the determination of the \$\eta\$-\$\eta'\$ mixing parameters from the \$B^0\_{s,d} \to J/\psi \eta^{(\prime)}\$ observables. We also observe that the \$B^0\_{s,d} \to J/\psi \eta\$ and \$B^0\_{s,d} \to J/\psi \eta'\$ decays are - from a formal point of view - analogous to the quark-antiquark and tetraquark descriptions of the \$f\_0(980)\$ in the \$B^0\_{s,d} \to J/\psi f\_0(980)\$ channels, respectively.}, added-at = {2019-02-23T22:09:48.000+0100}, archiveprefix = {arXiv}, author = {Fleischer, Robert and Knegjens, Robert and Ricciardi, Giulia}, biburl = {https://www.bibsonomy.org/bibtex/29606c7f21a15312cb8ec4357e6424503/cmcneile}, citeulike-article-id = {9946675}, citeulike-linkout-0 = {http://arxiv.org/abs/1110.5490}, citeulike-linkout-1 = {http://arxiv.org/pdf/1110.5490}, day = 25, eprint = {1110.5490}, interhash = {fab0d6f19c28c3e4001a5e2a83122086}, intrahash = {9606c7f21a15312cb8ec4357e6424503}, keywords = {eta}, month = oct, posted-at = {2011-10-26 08:36:32}, priority = {2}, timestamp = {2019-02-23T22:15:27.000+0100}, title = {Exploring CP Violation and \$\eta\$-\$\eta'\$ Mixing with the \$B^0\_{s,d} \to J/\psi \eta^{(\prime)}\$ Systems}, url = {http://arxiv.org/abs/1110.5490}, year = 2011 }