Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
2012-04-09
Physics
High Energy Physics
High Energy Physics - Phenomenology
29 pages, 11 figures, 2 tables
Scientific paper
We study the wave functions of light and heavy mesons in both hard-wall (HW) and soft-wall (SW) holographic models which use AdS/CFT correspondence. In the case of massless constituents, the asymptotic behaviors of the electromagnetic form factor, the distribution amplitudes, and the decay constants for the two models are the same if the relation between the dilaton scale parameter and the size of meson is an inverse proportion. On the other hand, by introducing a quark mass dependence in the wave function, the differences of the distribution amplitudes between the two models are obvious. In addition, for the SW model, the dependences of the decay constants of meson on the dilaton scale parameter $\kappa$ are not alike, especially $f_{Qq}\sim \kappa^3/m_Q^2$ is consistent with the prediction of the heavy quark effective theory if $\kappa\sim m_Q^{1/2}$. Thus the parameters of the two models are fit by the decay constants of the distinct mesons; the distribution amplitudes and the $\xi$-moments are calculated and compared.
No associations
LandOfFree
Meson distribution amplitudes in holographic models 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 Meson distribution amplitudes in holographic models, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Meson distribution amplitudes in holographic models will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-648285