Search for X(3872) and X(3915) decay into chi(c1)pi(0) in B decays at Belle

Abstract

We report a search for X(3872) and X(3915) in B+ ->chi(c1)pi K-0(+) decays. We set an upper limit of B(B+ -> X(3872)K+) x B(X(3872) -> chi(c1)pi(0)) X(3915)K+) x B(X(3915) -> chi(c1)pi(0)) chi(c1)pi(0))/B(X( 3872 ) -> (+)(-)(J/Psi pi)(pi)) < 0.97 at 90% confidence level.

The results reported here are obtained from 772 x 10(6) B (B) over bar events collected at the Upsilon(45) resonance with the Belle detector at the KEKB asymmetric-energy e(+)e(-) collider.

Keywords

• X(3872)
• X(3915)
• decays
• chi(c1)pi(0)
• Belle