6533b85afe1ef96bd12b9ec8

RESEARCH PRODUCT

DirectX(3872)production ine+e−collisions

Achim DenigChristoph HanhartFeng-kun GuoA. V. NefedievA. V. Nefediev

subject

Nuclear physicsPhysicsNuclear and High Energy PhysicsDirect productionHigh Energy Physics::ExperimentVector meson dominanceProduction (computer science)ElectronExotic hadronVector mesonNuclear theoryX(3872)

description

Abstract Direct production of the charmonium-like state X ( 3872 ) in e + e − collisions is considered in the framework of the vector meson dominance model. An order-of-magnitude estimate for the width Γ ( X → e + e − ) is found to be ≳0.03 eV. The same approach applied to the χ c 1 charmonium decay predicts the corresponding width of the order 0.1 eV in agreement with earlier estimates. Experimental perspectives for the direct production of the 1 + + charmonia in e + e − collisions are briefly discussed.

https://doi.org/10.1016/j.physletb.2014.07.027