2004/08/31 by Eric Braaten
Mathematics · Physics and Astronomy · #Algorithm #Factorization #Formalism (music) #High-Energy Particle Collisions Research #Mathematics #Meson #Octet #Particle physics #Particle physics theoretical and experimental studies #Physics #Production (economics) #Production rate #Quantum Chromodynamics and Particle Interactions #Quarkonium #X(3872) #hep-ph
paper · pdf · doi:10.1103/physrevd.73.011501
published as Phys.Rev.D73:011501,2006 · 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
openalex publication_date 2006/01/20 · arxiv created 2006/06/13 · arxiv updated 2009/12/01 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05
If the X(3872) is a loosely-bound D*0D0/D0D*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 JPC=1++, the most important term in the factorization formula should be the color-octet 3S1 term. This is also one of the two most important terms in the factorization formulas for \ensuremathχcJ. Since the color-octet 3S1 term dominates \ensuremathχcJ production for many processes, the ratio of the inclusive direct production rates for X and \ensuremathχcJ should be roughly the same for these processes. The assumption that the ratio of the production rates for X and \ensuremathχcJ is the same for all processes is used to estimate the inclusive production rate of X in B meson decays, Z0 decays, and in pp collisions.