2004/04/30 by Eric Braaten, Masaoki Kusunoki, S. Nussinov +1
Chemistry · Physics and Astronomy · #Branching fraction #Chemistry #Coalescence (physics) #Crystallography #Hadron #High-Energy Particle Collisions Research #Invariant mass #Meson #Particle physics #Particle physics theoretical and experimental studies #Physics #Quantum Chromodynamics and Particle Interactions #X(3872) #hep-ph
paper · pdf · doi:10.1103/physrevlett.93.162001
published as Phys.Rev.Lett.93:162001,2004 · 4 pages, 3 figures, revtex4
arxiv created 2004/08/23 · openalex publication_date 2004/10/12 · arxiv updated 2009/12/01 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05
If the recently discovered charmonium state X(3872) is a looselybound S-wavemolecule of the charm mesons D0D*0 or D*0D0,it can be produced in B-mesondecay by the coalescence of charm mesons. If this coalescence mechanism dominates,the ratio of the differential rate for B+\ensuremath→D0D*0K+ near the D0D*0 thresholdand the rate for B+\ensuremath→XK+ is a function of the D0D*0 invariantmass and hadron masses only. The identification of the X(3872) as a D0D*0/D*0D0 moleculecan be confirmed by observing an enhancement in the D0D*0 invariantmass distribution near the threshold. An estimate of the branching fractionfor B+\ensuremath→XK+ is consistent with observations if X hasquantum numbers JPC=1++ and if J/\ensuremathψ\ensuremathπ+\ensuremathπ^\ensuremath- is one of its major decay modes.