Note on X(3872) production at hadron colliders and its molecular structure

TL;DR

This paper clarifies the production mechanism of X(3872) at hadron colliders, arguing that its production at high transverse momentum does not exclude a molecular structure, contrary to previous claims.

Contribution

It challenges prior conclusions by analyzing the relevant scales and using the deuteron as an example to support the molecular interpretation of X(3872).

Findings

High $p_T$ production does not rule out a molecular structure.

Relevant scales in production are identified and analyzed.

Deuteron wave function properties are used as a benchmark.

Abstract

The production of the X(3872) as a hadronic molecule in hadron colliders is clarified. We show that the conclusion of Bignamini et al., Phys. Rev. Lett. 103 (2009) 162001, that the production of the X(3872) at high $p_T$ implies a non-molecular structure, does not hold. In particular, using the well understood properties of the deuteron wave function as an example, we identify the relevant scales in the production process.