Study of the K+ pi(+) pi(-) final state in B+ -> J/psi K+ pi(+) pi(-) and B+ -> psi ' K+ pi(+) pi(-)

Abstract

Using 535 106 B-meson pairs collected by the Belle detector at the KEKB collider, we measure branching fractions of7:16 0:10stat 0:60systÞ 104 for B J=c Kþþ and 4:31 0:20stat 0:50systÞÞ 104 for Bþ c 0Kþþ. We perform amplitude analyses to determine the resonant structure of the Kþþ final state in Bþ J=c Kþþ and Bþ c 0Kþþ and find that the K1