Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
2011-10-17
Physics
High Energy Physics
High Energy Physics - Phenomenology
4 pages, 5figures, proceedings of APFB2011
Scientific paper
In the X(3872) decay, both of the J/\psi\pi\pi\ and J/\psi\pi\pi\pi\ branching fractions are observed experimentally, and their sizes are comparable to each other. In order to clarify the mechanism to cause such a large isospin violation, we investigate X(3872) employing a model of coupled-channel two-meson scattering with a ccbar core. The two-meson states consist of D0Dbar*0, D+Dbar*-, J/\psi\rho, and J/\psi\omega. The effects of the \rho\ and \omega\ meson width are also taken into account. We calculate the transfer strength from the ccbar core to the final two-meson states. It is found that very narrow J/\psi\rho\ and J/\psi\omega\ peaks appear very close to the D0Dbar*0 threshold for a wide range of variation in the parameter sets. The size of the J/\psi\rho\ peak is almost the same as that of J/\psi\omega, which is consistent with the experiments. The large width of the \rho\ meson makes the originally small isospin violation by about five times larger.
Shimizu Kiyotaka
Takeuchi Sachiko
Takizawa Makoto
No associations
LandOfFree
Charmonium and meson-molecule hybrid tetraquarks - Vector meson width and the isospin breaking in the X(3872) decay does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Charmonium and meson-molecule hybrid tetraquarks - Vector meson width and the isospin breaking in the X(3872) decay, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Charmonium and meson-molecule hybrid tetraquarks - Vector meson width and the isospin breaking in the X(3872) decay will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-318730