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- Centre National de la Recherche ScientifiqueFR29 papers
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55 papers · 1 filter
Quadrupole polarizabilities of the pion in the Nambu--Jona-Lasinio model
Brigitte Hiller, Wojciech Broniowski, Alexander A. Osipov +1
The electromagnetic dipole and quadrupole polarizabilities of the neutral and charged pions are calculated in the Nambu--Jona-Lasinio model. Our results agree with the recent exper…
Light Pseudoscalar Meson and Heavy Meson Scattering Lengths
Yan-Rui Liu, Xiang Liu, Shi-Lin Zhu
We have performed a systematical calculation of the pion () and heavy pseudoscalar meson S-wave scattering lengths up to in the chiral perturbation theory…
Interference effects in the X(4260) signal
Eef van Beveren, George Rupp
We show that the long known puzzling branching ratios of open-charm decays in electron-positron annihilation can be reasonably described with a simple form factor, which strongly s…
The hidden charm decay of Y(4140) by the rescattering mechanism
Xiang Liu
Assuming that Y(4140) is the second radial excitation of the P-wave charmonium (), the hidden charm decay mode of Y(4140) is calculated in terms of…
The puzzle of excessive non- component of the inclusive decay and the long-distant contribution
Xiang Liu, Bo Zhang, Xue-Qian Li
In this letter we suggest that the obvious discrepancy between theoretical prediction on the decays of and data is to be alleviated by taking final…
B_{s1}(5830) and B_{s2}^*(5840)
Zhi-Gang Luo, Xiao-Lin Chen, Xiang Liu
In this paper we investigate the strong decays of the two newly observed bottom-strange mesons and in the framework of the quark pair creation model…