1998/04/07 by George Chiladze, Adam F. Falk, Alexey A. Petrov · 2 citations
Mathematics · Physics and Astronomy · #Branching fraction #High-Energy Particle Collisions Research #Lattice (music) #Mathematics #Operator (biology) #Operator product expansion #Particle physics #Particle physics theoretical and experimental studies #Physics #Production (economics) #Pure mathematics #Quantum Chromodynamics and Particle Interactions #Quantum chromodynamics #Tensor product #hep-lat #hep-ph
paper · pdf · doi:10.1103/physrevd.58.034013
published as Phys. Rev. D 58, 034013 (1998) · 15 pages, uses REVTeX
arxiv created 1998/04/07 · openalex publication_date 1998/07/08 · openalex created_date 2016/06/24 · arxiv updated 2016/08/24 · openalex updated_date 2026/08/05
We study the production of charmonium hybrids in B decays. We use the operator product expansion and nonrelativistic QCD to organize the various contributions to this process. We express the decay rate in terms of a few matrix elements which eventually will be fixed by experimental measurements or calculated on the lattice. While the Fock state expansion is problematic for hybrids, in that there is no perturbative large mass limit, the operator product expansion still provides a model independent framework for phenomenological calculations of hybrid production and decay. We then use a simple flux tube model to estimate the branching ratio \stackrel\ensuremath→B\ensuremathψg+X, where \ensuremathψg is a JPC=0^+\ensuremath- hybrid, the large production of which could help resolve the low charm multiplicity and semileptonic branching ratio observed in B decays. We also investigate the possible contributions of tensor charmonium production. We observe that it is unlikely for either effect to be large enough to play a significant role in resolving these problems.