The dynamically generated $h_1$ state by the $K^{\ast }{\bar{K}}^{\ast }$ interaction and its $K_1(1270)\bar{K}$ and $b_1(1235)\pi$ decays

Abstract

We investigate the dynamically generated $h_1$ state with spin-parity $J^P=1^{+}$ and a mass around 1790~MeV, arising from the $K^{\ast }{\bar{K}}^{\ast }$ interaction within the chiral unitary approach. The partial decay widths into the $K_1(1270)\bar{K}$ and $b_1(1235)\pi$ channels are calculated via a triangular loop mechanism. In this mechanism, the $h_1$ state couples to $K^{\ast }{\bar{K}}^{\ast }$, and final-state interactions between $K^{\ast }$ and ${\bar{K}}^{\ast }$ proceed through pseudoscalar-meson exchange, leading to the final states $\bar{K}$ (or $\pi$) and $K_1(1270)$ [or $b_1(1235)$]. We also present the invariant mass distributions of a vector meson and a pseudoscalar meson originating from the decays of $K_1(1270)$ or $b_1(1235)$, along with the corresponding decay widths. Our results show that these decay widths are all of the order of a few MeV. We hope that future experiments can test the predictions presented here, thereby helping to identify this $h_1$ state.

References in corpus (59)

• Hadronic molecules
• The hidden-charm pentaquark and tetraquark states
• The $XYZ$ states: experimental and theoretical status and perspectives
• Non-Standard Heavy Mesons and Baryons, an Experimental Review
• Non perturbative chiral approach to s-wave \bar{K}N interactions
• Pentaquark and Tetraquark states
• Heavy-Quark QCD Exotica
• Chiral Symmetry Amplitudes in the S-Wave Isoscalar and Isovector Channels and the σ, f_0(980), a_0(980) Scalar Mesons
• Chiral symmetry amplitudes in the s-wave isoscalar and isovector channels and the $\sigma ,f_0(980),a_0(980)$ scalar mesons
• Chiral Dynamics of the Two Λ(1405) States
• An updated review of the new hadron states
• Meson-Meson interaction in a non-perturbative chiral approach
• Dynamically Generated Open and Hidden Charm Meson Systems
• Exotic Hadrons with Heavy Flavors -X, Y, Z and Related States-
• Dynamically generated 0^+ heavy mesons in a heavy chiral unitary approach
• Chiral unitary approach to S-wave meson baryon scattering in the strangeness S=0 sector
• Low lying axial-vector mesons as dynamically generated resonances
• Low lying S=-1 excited baryons and chiral symmetry
• Chiral perturbation theory for heavy hadrons and chiral effective field theory for heavy hadronic molecules
• Vector meson-vector meson interaction in a hidden gauge unitary approach
• Exotic hadrons: review and perspectives
• The ρρinteraction in the hidden gauge formalism and the f_0(1370) and f_2(1270) resonances
• Dynamically generated 1^+ heavy mesons
• A Discussion on Triangle Singularities in the ${\Lambda }_b\to J/\psi K^{-}p$ Reaction
• An overview of $XYZ$ new particles
• Baryonic Resonances from Baryon Decuplet-Meson Octet Interaction
• Axial Resonances in the Open and Hidden Charm Sectors
• Hidden gauge formalism for the radiative decays of axial-vector mesons
• The Y(3940), Z(3930) and the X(4160) as dynamically generated resonances from the vector-vector interaction
• A new interpretation for the $D_{s2}^{\ast }(2573)$ and the prediction of novel exotic charmed mesons
• Clues for the existence of two $K_1(1270)$ resonances
• Dynamically generated resonances from the vector octet-baryon decuplet interaction
• Baryon states with open charm in the extended local hidden gauge approach
• $f_1(1285)$ decays into $a_0(980){\pi }^0$, $f_0(980){\pi }^0$ and isospin breaking
• Charm-beauty meson bound states from $B(B^{\ast })D(D^{\ast })$ and $B(B^{\ast })\bar{D}({\bar{D}}^{\ast })$ interaction
• Unitary coupled channel analysis of the $\Lambda (1520)$ resonance
• Study of $B{\bar{B}}^{\ast }$ and $B^{\ast }{\bar{B}}^{\ast }$ interactions in $I=1$ and relationship to the $Z_b(10610)$, $Z_b(10650)$ states
• Hidden beauty baryon states in the local hidden gauge approach with heavy quark spin symmetry
• Pseudocalar meson and vector meson interactions and dynamically generated axial-vector mesons
• A chiral covariant approach to $\rho \rho$ scattering
• Study of J/Psi decays into eta Kstar Kstar-bar
• Signature of an $h_1$ state in the $J/\psi \to \eta h_1\to \eta K^{\ast 0}{\bar{K}}^{\ast 0}$ decay
• Production of $\omega$ and $\varphi$ Mesons in Near-Threshold $\pi N$ Reactions: Baryon Resonances and Validity of the OZI Rule
• Two dynamical generated $a_0$ resonances by interactions between vector mesons
• Theoretical study of the $\Omega (2012)$ state in the ${\Omega }_c^0\to {\pi }^{+}\Omega (2012{)}^{-}\to {\pi }^{+}(\bar{K}\Xi {)}^{-}$ and ${\pi }^{+}(\bar{K}\Xi \pi {)}^{-}$ decays
• Doubly charmed ${\Xi }_{cc}$ molecular states from meson-baryon interaction
• Quantum loops in radiative decays of the $a_1$ and $b_1$ axial-vector mesons
• The $K\bar{K}\pi$ decay of the $f_1(1285)$ and its nature as a $K^{\ast }\bar{K}-cc$ molecule
• Hadronic molecular states from the $K{\bar{K}}^{\ast }$ interaction
• Further study of $f_0(1710)$ with coupled-channel approach and hadron molecular picture
• $\tau$ decay into a pseudoscalar and an axial-vector meson
• Radiative decays of $f_1(1285)$ as the $K^{\ast }\bar{K}$ molecular state
• The three-pion decays of the $a_1(1260)$
• The $K^{-}p\to f_1(1285)\Lambda$ reaction within an effective Lagrangian approach
• The bottomed strange molecules with isospin 0
• The $\pi f_0(500)$ decay of the $a_1(1260)$
• Exotic molecular meson states of $B^{(\ast )}{K}^{(\ast )}$ nature
• Tau decay into ${\nu }_{\tau }$ and $a_1(1260)$, $b_1(1235)$, and two $K_1(1270)$
• Strong decays of $a_0$, $f_0$, $f_2$, and $K_2^{\ast }$ resonances as dynamically generated states of two vector mesons