In terms of the heavy chiral Lagrangian and unitarized coupled-channel scattering amplitude, interaction between meson light pseudoscalar is studied. By looking for pole matrix on an appropriate Riemann sheet, a $DK$ bound state $D_{s0}^*$ with mass $2.312\pm0.041$ GeV found. This can be associated as narrow $D_{sJ}^*(2317)$ found recently. same way, $B{\bar K}$ $B_{s0}^*$ found, its $5.725\pm0.039$ predicted. The spectra $D_0^*$ $B_0^*$ $I=1/2$ are further investigated. One broad one states...

By using a heavy chiral unitary approach, we study the S wave interactions between vector meson and light pseudoscalar meson. searching for poles of scattering amplitudes in appropriate Riemann sheets, several 1+ states are found. In particular, D∗K bound state with mass 2.462±0.010GeV which should be associated recently observed Ds1(2460) is obtained. same way, B∗K¯ (Bs1) 5.778±0.007GeV bottom sector predicted. The spectra dynamically generated D1 B1 I=1/2 channel also calculated. One broad...

Thermodynamic formulas for investigating systems with density- and/or temperature-dependent particle masses are generally derived from the fundamental derivation equality of thermodynamics. Various problems in previous treatments discussed and modified. Properties strange quark matter bulk strangelets at both zero finite temperature then calculated based on new thermodynamic a mass scaling, which indicates that low-mass near \ensuremath{\beta} equilibrium multiquark states an antistrange...

Using the potentials derived from vector-meson-exchanges, $K\overline{K}$, $DK$, $B\overline{K}$, $D\overline{D}$, $B\overline{B}$, $BD$, $\overline{D}K$, $BK$ and $B\overline{D}$ systems are studied. Possible $S$-wave bound-states of two pseudoscalar mesons discussed. We find that $DB$, $B\overline{B}$ $DK$ with isospin 0 likely to form bound states via strong interactions while others unlikely be by interaction sector alone. With Coulomb potential, ${K}^{+}{K}^{\ensuremath{-}}$ system can...

The decay widths of four-body double-pion decays ${d}^{*}\ensuremath{\rightarrow}pn{\ensuremath{\pi}}^{0}{\ensuremath{\pi}}^{0},\phantom{\rule{0.16em}{0ex}}{d}^{*}\ensuremath{\rightarrow}pn{\ensuremath{\pi}}^{+}{\ensuremath{\pi}}^{\ensuremath{-}}$, and isoscalar parts ${d}^{*}\ensuremath{\rightarrow}pp{\ensuremath{\pi}}^{0}{\ensuremath{\pi}}^{\ensuremath{-}}$ ${d}^{*}\ensuremath{\rightarrow}nn{\ensuremath{\pi}}^{+}{\ensuremath{\pi}}^{0}$ are explicitly calculated with the help ${d}^{*}$ wave...

We discuss the structure of Deltaron dibaryon in chiral SU(3) quark model. The energy is obtained by considering coupling $\Delta\Delta$ and $CC$ (hidden color) channels. effects various parameters on mass are also studied. It shown that lower than but higher $\Delta N \pi$.

In this work, we evaluate the energy spectra of baryons which consist two heavy and one light quarks in MIT bag model. The constitute a scalar or axial vector diquark. Concretely, calculate $|q(QQ')>_{1/2}$ $|q(QQ')>_{3/2}$ where $Q$ $Q'$ stand for $b$ and/or $c$ quarks. Especially, $|q(bc)>_{1/2}$ there can be mixing between $|q(bc)_0>_{1/2}$ $|q(bc)_1>_{1/2}$ subscripts 0 1 refer to spin state diquark (bc), is not calculable framework quantum mechanics (QM) as potential model employed, but...

Abstract The newly confirmed pentaquark state $$P_c(4312)$$ <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:mrow><mml:msub><mml:mi>P</mml:mi><mml:mi>c</mml:mi></mml:msub><mml:mrow><mml:mo>(</mml:mo><mml:mn>4312</mml:mn><mml:mo>)</mml:mo></mml:mrow></mml:mrow></mml:math> has been treated as a weakly bound $$(\Sigma _c\bar{D})$$...

In this work, we employ the effective vertices for interaction between diquarks (scalar or axial-vector) and gluon where form factors are derived in terms of B-S equation, to obtain potential baryons including a light quark heavy diquark. The concerned phenomenological parameters obtained by fitting data $B^{(*)}-$mesons instead quarkonia. operator ordering problem quantum mechanics is discussed. Our numerical results indicate that mass splitting $B_{3/2}(V), B_{1/2}(V)$ $B_{1/2}(S)$ very...

Based on symmetry consideration, more generalized chiral field terms are proposed to restore the SU(2${)}_{\mathit{L}}$\ifmmode\times\else\texttimes\fi{}SU(2${)}_{\mathit{R}}$ of strong interaction. As a result, modified quark-quark interaction is obtained. Applying this nucleon-nucleon scattering, agreement between theoretical phase shifts partial waves and experimental data improved.

The width of three-body single-pion decay process d⁎→NNπ0,± is calculated by using the d⁎ wave function obtained from our chiral SU(3) constituent quark model calculation. effect dynamical structure on taken into account in both single ΔΔ channel and coupled ΔΔ+CC two-channel approximations. Our numerical result shows that coupled-channel approximation, namely, hidden-color configuration being considered, partial d⁎→NNπ about several hundred keV, while it just 2∼3 MeV. We, therefore,...

There are many advantages to using the J/Ψ decay process in studying structures of hadrons. In order reveal N* resonances → pω data at Beijing Electron Positron Collider, we provide a theoretical formalism and Monte Carlo study partial wave analysis for this channel. We derive amplitudes various intermediate resonant states framework relativistic covariant tensor formalism. By performing simulation, obtain angular distributions, pω(ω) invariant mass spectra Dalitz plots waves pω.

The structure of ${d}^{*}(2380)$ is restudied with the single cluster in chiral SU(3) quark model which has successfully been employed to explain $N\ensuremath{-}N$ scattering data and binding energy deuteron. behavior such a six system solved by using variational method. trial wave function chosen be combination basic spherical symmetric component $[(0s{)}^{6}{]}_{\mathrm{orb}}$ orbital space $0\ensuremath{\hbar}\ensuremath{\omega}$ excitation an inner structural deformation...

In the framework of heavy baryon perturbation theory, in which two-pion exchange is considered, physical properties and anti-heavy systems are revisited. The potentials between extracted a holonomic form. Based on potentials, $S$-wave scattering phase shifts lengths ${\ensuremath{\Lambda}}_{c}--{\overline{\ensuremath{\Lambda}}}_{c}$ ${\ensuremath{\Sigma}}_{c}--{\overline{\ensuremath{\Sigma}}}_{c}$ calculated. From these features, it found that system can be bound only when value coupling...

The chiral constituent quark model is applied to predict the magnetic $M1$ and electric $E2$ amplitudes of $\ensuremath{\Delta}\ensuremath{\leftrightarrow}\ensuremath{\gamma}N$ transition. It found that one-meson-exchange quark-quark potential due fields enhances $E2/M1$ ratio by a factor about 2. predicted ${M}_{{1}^{+}}$ amplitude $\ensuremath{\simeq}\ensuremath{-}1.0%$ are within range determined from recent analysis data pion photoproduction.

We calculate the charge distributions of $d^*(2380)$. Two different interpretations $d^*$ are considered for a comparison. One is compact explanation with coupled $\Delta\Delta+CC$ two-channel approximation in chiral constituent quark model. Another resonance state $D_{12}\pi$. The remarkable differences two pictures shown and it expected that future experiments may provide clear test theoretical interpretations.

In order to explore the possible physical quantities for judging different structures of newly observed resonance ${d}^{*}(2380)$, we study its electromagnetic form factors. addition electric charge monopole $C0$, calculate quadrupole $E2$, magnetic dipole $M1$, and octupole $M3$ factors on base realistic coupled $\mathrm{\ensuremath{\Delta}}\mathrm{\ensuremath{\Delta}}+{C}_{8}{C}_{8}$ channel ${d}^{*}$ wave function with both $S$- $D$-partial waves. The results show that moment deformation...

The H dihyperon (DH) is studied in the framework of SU(3) chiral quark model. It shown that except $\sigma$ field, overall effect other fields destructive forming a stable DH. resultant mass DH three coupled channel calculation ranged from 2225 $MeV$ to 2234 $MeV$.