4.7 Article

The 2-+ assignment for the X(3872)

Journal

PHYSICAL REVIEW D
Volume 82, Issue 7, Pages -

Publisher

AMER PHYSICAL SOC
DOI: 10.1103/PhysRevD.82.074003

Keywords

-

Ask authors/readers for more resources

Very recently the BABAR collaboration has put forward a claim that the X(3872) is not a 1(++) resonance, as most of the phenomenological work on the subject was relying on, but rather a 2(-+) one. We examine the consequences of this quantum number assignment for the solution of the X(3872) puzzle. The molecular interpretation appears less likely, and the conventional charmonium interpretation should be reconsidered. There are several well-known difficulties with this interpretation, to which we add a new one: the production cross section at CDF is predicted to be much smaller than that observed. We also confirm, using a relativistic string model, the conclusion from potential models that the mass of the state is not consistent with expectations. In the tetraquark interpretation the 2(-+) assignment implies a rich spectrum of partner states, although the X(3872) may be among the few which are narrow enough to be observable.

Authors

I am an author on this paper
Click your name to claim this paper and add it to your profile.

Reviews

Primary Rating

4.7
Not enough ratings

Secondary Ratings

Novelty
-
Significance
-
Scientific rigor
-
Rate this paper

Recommended

No Data Available
No Data Available