Hidden gauge formalism for the radiative decays of axial-vector mesons

Abstract

The radiative decay of the axial-vector resonances into a pseudoscalar meson and a photon is studied using the vector meson Lagrangian obtained from the hidden gauge symmetry (HGS) formalism. The formalism is well suited to study this problem since it deals with pseudoscalar and vector mesons in a unified way, respecting chiral invariance. We show explicitly the gauge invariance of the set of diagrams that appear in the approach and evaluate the radiative decay width of the a1(1260) and b1(1235) axial vector meson resonances into pi gamma. We also include the contribution of loops involving anomalous couplings and compare the results to those obtained previously within another formalism.

24 pages, 6 tables, 11 figures

References in corpus (18)

• Strong and radiative decays of the Ds0*(2317) meson in the DK-molecule picture
• Origin of resonances in the chiral unitary approach
• Estimate for the X(3872) to gamma J/psi decay width
• Radiative and isospin-violating decays of Ds mesons in the hadrogenesis conjecture
• D* K molecular structure of the Ds1(2460) meson
• Clues for the existence of two $K_1(1270)$ resonances
• On the radiative decays of light vector and axial-vector mesons
• Strong and radiative decays of the scalars f0(980) and a0(980) in a hadronic molecule approach
• Meson loops in the $f_0(980)$ and $a_0(980)$ radiative decays into $\rho$, $\omega$
• Structure of the axial-vector meson $D_{s1}(2460)$ and the strong coupling constant $g_{D_{s1}{D}^{\ast }K}$ with the light-cone QCD sum rules
• Radiative decays of the $D_{s0}(2317)$, $D_{s1}(2460)$ and the related strong coupling constants
• Study on Decays of $D_{sJ}^{\ast }(2317)$ and $D_{sJ}(2460)$ in terms of the CQM Model
• Radiative decay of the dynamically generated open and hidden charm scalar meson resonances D_{s0}^*(2317) and X(3700)
• Quantum loops in radiative decays of the $a_1$ and $b_1$ axial-vector mesons
• On the role of meson loops in the $f_0(1710)$ decay into $V\gamma$
• Radiative decay into $\gamma P$ of the low lying axial-vector mesons
• Magnetic interaction induced by the anomaly in kaon-photoproductions
• Linear Sigma Model predictions for V->Sgamma and S->Vgamma decays

Cited by in corpus (47)

• The ρρinteraction in the hidden gauge formalism and the f_0(1370) and f_2(1270) resonances
• Isospin breaking effects in the X(3872) resonance
• Interaction of vector mesons with baryons and nuclei
• Molecular nature of $P_{cs}(4459)$ and its heavy quark spin partners
• On $X(3872)$ production in high energy heavy ion collisions
• Role of a triangle singularity in the $\gamma p\to K^{+}\Lambda (1405)$ reaction
• Coupled-channel effects of the ${\Sigma }_c^{(\ast )}{\bar{D}}^{(\ast )}$-${\Lambda }_c(2595)\bar{D}$ system and molecular nature of the $P_c$ pentaquark states from one-boson exchange model
• Pseudocalar meson and vector meson interactions and dynamically generated axial-vector mesons
• Low-lying even parity meson resonances and spin-flavor symmetry
• Prediction of new $T_{cc}$ states of $D^{\ast }{D}^{\ast }$ and $D_s^{\ast }{D}^{\ast }$ molecular nature
• Heavy-strange meson molecules and possible candidates $D_{s0}^{\ast }(2317)$, $D_{s1}(2460)$, and $X_0(2900)$
• The $Z_{cs}(3985)$ as a threshold effect from the ${\bar{D}}_s^{\ast }D+{\bar{D}}_s{D}^{\ast }$ interaction
• Scalar, axial-vector and tensor resonances from the rho D^*, omega D^* interaction in the hidden gauge formalism
• Revising the $f_1(1420)$ resonance
• Radiative decays of the Y(3940), Z(3930) and the X(4160) as dynamically generated resonances
• ${\bar{K}}^{\ast }$ meson in dense matter
• Study of the decay $D_s^{+}\to K_S^0{K}_S^0{\pi }^{+}$ and observation an isovector partner to $f_0(1710)$
• Heavy Flavour Physics and CP Violation at LHCb: a Ten-Year Review
• Unveiling the $K_1(1270)$ double-pole structure in the $\bar{B}\to J/\psi \rho \bar{K}$ and $\bar{B}\to J/\psi {\bar{K}}^{\ast }\pi$ decays
• Masses and widths of the exotic molecular $B_{(s)}^{(\ast )}{B}_{(s)}^{(\ast )}$ states
• Triangle singularities in $B^{-}\to D^{\ast 0}{\pi }^{-}{\pi }^0\eta$ and $B^{-}\to D^{\ast 0}{\pi }^{-}{\pi }^{+}{\pi }^{-}$
• The $X(3960)$ seen in $D_s^{+}{D}_s^{-}$ as the $X(3930)$ state seen in $D^{+}{D}^{-}$
• Molecular ${\Omega }_{cc}$ , ${\Omega }_{bb}$ and ${\Omega }_{bc}$ states
• $X(3872)$, $X(4014)$, and their bottom partners at finite temperature
• Molecular states of $D^{\ast }{D}^{\ast }{\bar{K}}^{\ast }$ nature
• $Z_{cs}$ states from the $D_s^{\ast }{\bar{D}}^{\ast }$ and $J/\psi K^{\ast }$ coupled channels: Signal in $B^{+}\to J/\psi \varphi K^{+}$ decay
• Theoretical description of the $\mathbf{J}/\mathbf{\psi }\to \mathbf{\eta }({\mathbf{\eta }}^{\prime }){\mathbf{h}}_1(1380)$, $\mathbf{J}/\mathbf{\psi }\to \mathbf{\eta }({\mathbf{\eta }}^{\prime }){\mathbf{h}}_1(1170)$ and $\mathbf{J}/\mathbf{\psi }\to {\mathbf{\pi }}^0{\mathbf{b}}_1(1235{)}^0$ reactions
• Exotic states with triple charm
• Hadronic molecules with four charm or beauty quarks
• $\rho \rho$ scattering revisited with coupled-channels of pseudoscalar mesons
• Decay of vector-vector resonances into $\gamma$ and a pseudoscalar meson
• Hadronic molecular states with the quark contents $bc\bar{s}\bar{q}$, $b\bar{c}s\bar{q}$, and $b\bar{c}\bar{s}q$
• The $\varphi p$ bound state in the unitary coupled-channel approximation
• Searching for femtoscopic signatures of the $D\bar{D}(I=0)[X(3700)]$ bound state
• The $\pi f_0(500)$ decay of the $a_1(1260)$
• ${\chi }_{c1}$ decays into a pseudoscalar meson and a vector-vector molecule
• Exotic molecular meson states of $B^{(\ast )}{K}^{(\ast )}$ nature
• Traces of the new $a_0(1780)$ resonance in the $J/\psi \to \varphi K^{+}{K}^{-}(K^0{\bar{K}}^0)$ reaction
• Tau decay into ${\nu }_{\tau }$ and $a_1(1260)$, $b_1(1235)$, and two $K_1(1270)$
• Production of pentaquarks with hidden charm and double strangeness in ${\Xi }_b$ and ${\Omega }_b$ decays
• The $D_s^{+}\to K^{+}{\pi }^{+}{\pi }^{-}$ reaction and the scalar $f_0(500)$, $f_0(980)$ and $K_0^{\ast }(700)$ resonances
• Pole analysis for the $D^{\ast }\bar{K}$-$D\overline{K^{\ast }}$ coupled-channel system
• Triangle mechanism in the decay process $B_0\to J/\psi K^0{f}_0(980)(a_0(980))$
• Two-photon production of $f_0$ and $a_0$ resonances as hadronic molecules composed of two vector mesons
• A note on the tensor and vector exchange contributions to $K\bar{K}\to K\bar{K},D\bar{D}\to D\bar{D}$ and ${\pi }^{+}{\pi }^{-}\to {\pi }^{+}{\pi }^{-}$ reactions
• Role of $a_0(1710)$ in the $J/\psi \to {\rho }^{+}{\rho }^{-}\omega$ and $J/\psi \to \gamma {\rho }^0\omega$ reactions
• 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