Production of the predicted K*(4307) in B decays

Abstract

In this work we study the production of K Ã ð4307Þ in B decays by determining the J=ψπ þð0Þ K 0 and J=ψπ − K þ invariant mass distributions of the processes B þ → J=ψπ þ π 0 K 0 and B þ → J=ψπ þ π − K þ , respectively. Such K Ã ð4307Þ has been recently predicted as a three-body state originating from the dynamics involved in the KDD Ã system, with the KD subsystem forming the D Ã s0 ð2317Þ in isospin 0, and the DD Ã subsystem generating the Xð3872Þ in isospin 0 and the Z c ð3900Þ in isospin 1. The hidden charm content of K Ã ð4307Þ favors its decay to a state like J=ψπK and the study of B decays with these particles in their final states can constitute a way of finding experimental evidence for such an exotic vector meson, whose width-in spite of its large mass-is still quite narrow (around 18 MeV).

Kaon, Nucleon and $Δ^*$ Resonances with Hidden Charm

“…Studies of further properties of * (4307) can be found in Refs. [36,37]. Figure 2 shows the results for the → and → transitions with ( ) = 1/2 (1/2 + ) and Fig.…”

Exotic heavy hadrons with a three-body nature

“…The fact of having an important (3900) molecular component in the wave function of * (4307) indicates that the state can also easily decay to a channel like / . In this way, the reconstruction on the / invariant mass in processes involving these particles in their final states can be a promising way of observing this * (4307) [29].…”

Kaon, Nucleon and $\Delta^*$ Resonances with Hidden Charm

“…Studies of further properties of 𝐾 * (4307) can be found in Refs. [36,37]. Figure 2 shows the results for the 𝑁 𝑋 → 𝑁 𝑋 and 𝑁 𝑍 𝑐 → 𝑁 𝑍 𝑐 transitions with 𝐼 (𝐽 𝑃 ) = 1/2 (1/2 + ) and Fig.…”