Is fX(1500) observed in the B→π(K)KK decays ρ0(1450)?

We suggest that the uncertain state fX(1500) observed by Belle and BABAR more than a decade ago, which has been viewed as a single scalar or a combination of several even spin resonances, is the vector ρ0(1450) reported recently by LHCb. Adopting the perturbative QCD approach, we determine the dikaon distribution amplitudes with the ρ0(1450) resonance from the LHCb data for the quasi-two-body decays B±→π±ρ0(1450)→π±K+K-. It is then shown that the B+→K+K+K- decay spectrum around the invariant mass M(K+K-)∼1.5  GeV measured by BABAR can be well described by the resonant contribution from ρ0(1450). The broad structure in the B+→K+KSKS spectrum around the invariant mass 1.5 GeV of a KSKS pair, which ρ0(1450) cannot decay into because of Bose-Einstein statistics, can be accounted for by a nonresonant S-wave contribution alone. The branching fractions and/or the direct CP asymmetries of the B±→π±ρ0(1450)→π±K+K-, B+→K+ρ0(1450)→K+K+K- and B0→K0ρ0(1450)→K0K+K- modes are predicted, which can be tested at the ongoing LHCb and Belle-II experiments. We encourage experimental colleagues to scrutinize our postulation by analyzing relevant data with higher precision. [ABSTRACT FROM AUTHOR]