Semileptonic decay of $B_c^{-}$ into $X(3930)$, $X(3940)$, $X(4160)$

Abstract

We study the semileptonic decay of $B_c^{-}$ meson into $\bar{\nu }{l}^{-}$ and the isospin zero $X(3930)(2^{++})$, $X(3940)(0^{++})$, $X(4160)(2^{++})$ resonances. We look at the reaction from the perspective that these resonaces appear as dynamically generated from the vector-vector interaction in the charm sector, and couple strongly to $D^{\ast }\overline{D^{\ast }}$ and $D_s^{\ast }\overline{D_s^{\ast }}$. We also look into the $B_c^{-}\to {\bar{\nu }}_l{l}^{-}{D}^{\ast }\overline{D^{\ast }}$ and $B_c^{-}\to {\bar{\nu }}_l{l}^{-}{D}_s^{\ast }\overline{D_s^{\ast }}$ reactions close to threshold and relate the $D^{\ast }\overline{D^{\ast }}$ and $D_s^{\ast }\overline{D_s^{\ast }}$ mass distribution to the rate of production of the $X$ resonances.

7 pages, 9 figures

References in corpus (15)

• The hidden-charm pentaquark and tetraquark states
• Multiquark Resonances
• Constituent quark model study of the meson spectra
• Evidence for a Narrow Near-Threshold Structure in the $J/\psi \varphi$ Mass Spectrum in $B^{+}\to J/\psi \varphi K^{+}$ Decays
• The Exotic XYZ Charmonium-like Mesons
• Search for new charmonium states in the processes e+ e- --> J/psi D(*) D(*) at sqrt{s} ~ 10.6 GeV
• Hadronic molecule structure of the Y(3940) and Y(4140)
• Analysis of the Y(4140) with QCD sum rules
• Could the $X(3915)$ and the $X(3930)$ Be the Same Tensor State?
• Understanding the internal structures of the $X(4140)$, $X(4274)$, $X(4500)$ and $X(4700)$
• Exotic resonances due to $\eta$ exchange
• Analysis of the $B^{+}\to J/\psi \varphi K^{+}$ data at low $J/\psi \varphi$ invariant masses and the $X(4140)$ and $X(4160)$ resonances
• Semileptonic ${\Lambda }_b\to {\bar{\nu }}_{l}l{\Lambda }_c(2595)$ and ${\Lambda }_b\to {\bar{\nu }}_{l}l{\Lambda }_c(2625)$ decays in the molecular picture of ${\Lambda }_c(2595)$ and ${\Lambda }_c(2625)$
• Chiral Symmetry Breaking by Monopole Condensation
• The Production of $X(3940)$ and $X(4160)$ in $B_c$ decays

Cited by in corpus (2)

• Pentaquark and Tetraquark states
• Meson exchange between initial and final state and the $R_D$ ratio in the $\bar{B}\to D\bar{\nu }\ell ({\bar{\nu }}_{\tau }\tau )$ reactions