Inclusive Production of the X(3872)

Abstract

If the X(3872) is a loosely-bound D^{*0} Dbar^0 / D^0 Dbar^{*0} molecule, its inclusive production rate can be described by the NRQCD factorization formalism that applies to inclusive quarkonium production. We argue that if the molecule has quantum numbers J^{PC} = 1^{++}, the most important term in the factorization formula should be the color-octet ^3S_1 term. This is also one of the two most important terms in the factorization formulas for chi_{cJ}. Since the color-octet ^3S_1 term dominates chi_{cJ} production for many processes, the ratio of the inclusive direct production rates for X and chi_{cJ} should be roughly the same for these processes. The assumption that the ratio of the production rates for X and chi_{cJ} is the same for all processes is used to estimate the inclusive production rate of X in B meson decays, Z^0 decays, and in p pbar collisions.

8 pages, extensively revised to take into account the insight of Voloshin that the c-cbar pair in the X(3872) are in a spin-triplet state

References in corpus (3)

• Study of the B- --> J/psi K- pi+ pi- Decay and Measurement of the B- --> X(3872) K- Branching Fraction
• Heavy quark spin selection rule and the properties of the X(3872)
• Search for a Charmonium Assignment for the X(3872)

Cited by in corpus (12)

• Heavy quarkonium: progress, puzzles, and opportunities
• The hidden-charm pentaquark and tetraquark states
• QCD and strongly coupled gauge theories: challenges and perspectives
• Chiral perturbation theory for heavy hadrons and chiral effective field theory for heavy hadronic molecules
• Production of the X(3872) at the Tevatron and the LHC
• Isospin breaking, coupled-channel effects, and X(3872)
• Estimating the Production Rate of Loosely-bound Hadronic Molecules using Event Generators
• On the scattering of D and D* mesons off the X(3872)
• X(3872) and the bound state problem of $D^0{\bar{D}}^{\ast 0}$ (${\bar{D}}^0{D}^{\ast 0}$) in a chiral quark model
• New Experiments with Antiprotons
• Prospects for Antiproton Experiments at Fermilab
• On the origin of the narrow peak and the isospin symmetry breaking of the $X$(3872)