263 citations · 1.6k across the 25 of their papers we have counts for
16 papers · 1 filter
Dynamically generated 1^+ heavy mesons
Feng-Kun Guo, Peng-Nian Shen, Huan-Ching Chiang
By using a heavy chiral unitary approach, we study the wave interactions between heavy vector meson and light pseudoscalar meson. By searching for poles of the unitary scatteri…
Possible S-wave Bound-States of Two Pseudoscalar Mesons
Yin-Jie Zhang, Huan-Ching Chiang, Peng-Nian Shen +1
Using the potentials derived from vector-meson-exchanges, the , , , , , , , and systems are studied. Possible S…
Chromo-polarizability and pipi final state interaction
Feng-Kun Guo, Peng-Nian Shen, Huan-Ching Chiang
The chromo-polarizability of a quarkonium state is a measure of the amplitude of the - chromo-electric interaction of the quarkonium with soft gluon fields and can be measu…
On the structure of the pi pi invariant mass spectra of the Upsilon(4S)-->Upsilon(1S,2S) pi^+ pi^- decays
Feng-Kun Guo, Peng-Nian Shen, Huan-Ching Chiang +1
We perform a model-independent analysis for recently reported data of the invariant mass spectra in the decays and point out that there does exist…
S wave Kπscattering and effects of κin J/ψ\to {\bar K}^{*0}(892)K^+π^-
Feng-Kun Guo, Rong-Gang Ping, Peng-Nian Shen +2
wave scattering is studied using a chiral unitary approach (ChUT) taking into account coupled channels. With the amplitudes derived from the lowest order chiral Lagrangian…
Unitary chiral dynamics in decays into and the role of the scalar mesons
L. Roca, J. E. Palomar, E. Oset +1
We make a theoretical study of the $\J$ decays into , , and using the techniques of the chiral unitary approach stressing the important role of t…
Heavy Quarkonium π^+π^- Transitions and a Possible b\bar{b}q\bar{q} State
F. -K. Guo, P. -N. Shen, H. -C. Chiang +1
transitions of heavy quarkonia, especially the decay process, are revisited. In the framework of the Chiral Unitary Theory (ChUT), the wave …
Unitary chiral dynamics in J/Psi to VPP decays and the role of scalar mesons
L. Roca, J. E. Palomar, E. Oset +1
We make a theoretical study of the J/Psi decays into ωππ, ϕππ, ωK \bar{K} and ϕK\bar{K} using the techniques of the chiral unitary approach stressing the important role of the scal…
One-pion-exchange final-state-interaction and the pbar p near threshold enhancement in J/psi -> gamma pbar p decays
B. S. Zou, H. C. Chiang
For the Nbar N system, the one-pion-exchange (OPE) interaction gives the largest attractive force for Nbar N with isospin I=0 and spin S=0, while a near threshold enhancement was o…
Chiral Condensates in Quark and nuclear Matter
G. X. Peng, U. Lombardo, M. Loewe +2
We present a novel treatment for calculating the in-medium quark condensates. The advantage of this approach is that one does not need to make further assumptions on the derivative…
Thermodynamics, strange quark matter, and strange stars
G. X. Peng, H. C. Chiang, P. Z. Ning
Because of the mass density-dependence, an extra term should be added to the expression of pressure. However, it should not appear in that of energy according to both the general e…
Mass formulas and thermodynamic treatment in the mass-density-dependent model of strange quark matter
G. X. Peng, H. C. Chiang, J. J. Yang +2
The previous treatments for strange quark matter in the quark mass-density-dependent model have unreasonable vacuum limits. We provide a method to obtain the quark mass parametriza…
Study of N*(1440) from J/Psi Decays
B. S. Zou, G. X. Peng, R. G. Ping +3
For and , the and systems are limited to be pure isospin 1/2 due to isospin conservation. This is a big advantage in studying $N…
Charge and critical density of strange quark matter
G. X. Peng, H. C. Chiang, P. Z. Ning +1
The electric charge of strange quark matter is of vital importance to experiments. A recent investigation shows that strangelets are most likely highly negatively charged, rather t…
Mass formulae and strange quark matter
G. X. Peng, P. Z. Ning
We have derived the popularly used parametrization formulae for quark masses at low densities and modified them at high densities within the mass-density-dependent model. The resul…
Finite size vertex corrections to the three-gluon decay widths of and and a redetermination of at and
H. C. Chiang, J. Hüfner, H. J. Pirner
We calculate the corrections to the three-gluon decay widths of and quarkonia due to the finite extension of the vertex function. The…