Search of 1^P_1 charmonium in B decay

Abstract

While experiment produced a candidate for the 1^P_1 chamonium in the past, it still requires a confirmation. Given the recent progress in the exclusive B decay into charmonia, we now have an opportunity to detect this charmonium (h_c) by measuring the final state of the cascade decay B \to h_c K/K^* \to γη_c K/K^*. Confirmation of h_c may turn out to be much easier in the B decay than at charm factories though one will have to work a little harder for a high precision in mass determination.