${\rm Z}^{+}(4430)$ and Analogous Heavy Flavor States

Details ${\rm Z}^{+}(4430)$ and Analogous Heavy Flavor States ${\rm Z}^{+}(4430)$ and Analogous Heavy Flavor States

2008-05-25

arxiv.org/abs/0805.3822v2

Phys.Rev.D79:034026,2009

Physics

High Energy Physics

High Energy Physics - Phenomenology

27 pages, 6 figures

Scientific paper

10.1103/PhysRevD.79.034026

The proximity of ${\rm Z}^+(4430)$ to the ${\rm D^{*}\bar{D}_1}$ threshold suggests that it may be a ${\rm D^{*}\bar{D}_1}$ molecular state. The ${\rm D^{*}\bar{D}_1}$ system has been studied dynamically from quark model, and state mixing effect is taken into account by solving the multichannel Schr$\ddot{\rm o}$dinger equation numerically. We suggest the most favorable quantum number is ${\rm J^{P}=0^{-}}$, if future experiments confirm ${\rm Z}^+(4430)$ as a loosely bound molecule state. More precise measurements of ${\rm Z}^+(4430)$ mass and width, partial wave analysis are helpful to understand its structure. The analogous heavy flavor mesons ${\rm Z}^{+}_{bb}$ and ${\rm Z}^{++}_{bc}$ are studied as well, and the masses predicted in our model are in agreement with the predictions from potential model and QCD sum rule. We further apply our model to the ${\rm D\bar{D}^{*}}$ and ${\rm DD^{*}}$ system. We find the exotic ${\rm DD^{*}}$ bound molecule doesn't exist, while the $1^{++}$ ${\rm D\bar{D}^{*}}$ bound state solution can be found only if the screening mass $\mu$ is smaller than 0.17 GeV. The state mixing effect between the molecular state and the conventional charmonium should be considered to understand the nature of X(3872).

Affiliated with

Also associated with

No associations

Rating

${\rm Z}^{+}(4430)$ and Analogous Heavy Flavor States 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 ${\rm Z}^{+}(4430)$ and Analogous Heavy Flavor States, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and ${\rm Z}^{+}(4430)$ and Analogous Heavy Flavor States will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-437382