2000/08/09 by Eric Braaten, Sean Fleming, Adam K. Leibovich
Physics and Astronomy · #Excited state #Factorization #Fermilab #High-Energy Particle Collisions Research #Large Hadron Collider #Nuclear physics #Observable #Octet #Particle physics #Particle physics theoretical and experimental studies #Physics #Production (economics) #Quantum Chromodynamics and Particle Interactions #Quantum chromodynamics #Quantum mechanics #Quark #Quarkonium #Singlet state #Tevatron #hep-ph
paper · pdf · doi:10.1103/physrevd.63.094006
published as Phys.Rev. D63 (2001) 094006 · 20 pages, 3 figures
arxiv created 2000/08/09 · openalex publication_date 2001/03/30 · arxiv updated 2009/11/30 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05
Recent data from the CDF Collaboration on the production of spin-triplet bottomonium states at the Fermilab Tevatron pp collider are analyzed within the NRQCD factorization formalism. The color-singlet matrix elements are determined from electromagnetic decays and from potential models. The color-octet matrix elements are determined by fitting the CDF data on the cross sections for \ensuremathΥ(1S), \ensuremathΥ(2S), and \ensuremathΥ(3S) at large pT and the fractions of \ensuremathΥ(1S) coming from \ensuremathχb(1P) and \ensuremathχb(2P). We use the resulting matrix elements to predict the cross sections at the Tevatron for the spin-singlet states \ensuremathηb(nS) and hb(nP). We argue that \ensuremathηb(1S) may be observable in run II through the decay \ensuremathηb\ensuremath→J/\ensuremathψ+J/\ensuremathψ.