2012/02/29 by Shunsuke Ohkoda, Yasuhiro Yamaguchi, Shigehiro Yasui +2 · 1 citation
Chemistry · Physics and Astronomy · #Charm (quantum number) #Chemistry #Flavor #High-Energy Particle Collisions Research #Meson #Nuclear physics #Particle physics #Particle physics theoretical and experimental studies #Physics #Quantum Chromodynamics and Particle Interactions #hep-ph
paper · pdf · doi:10.1103/physrevd.86.034019
24 pages, 3 figures
arxiv created 2012/07/17 · openalex publication_date 2012/08/21 · arxiv updated 2013/05/29 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
We study exotic mesons with double charm and bottom flavor (|C|=|B|=2), whose quark configuration is QQqq. This quark configuration has no annihilation process of quark and antiquark, and hence is a genuinely exotic state. We take a hadronic picture by considering the molecular states composed of a pair of heavy mesons, such as DD, DD*, and D*D* for charm flavor, and BB, BB*, and B*B* for bottom flavor. The interactions between heavy mesons are derived from the heavy quark effective theory. All molecular states are classified by I(JP) quantum numbers, and are systematically studied up to the total angular momentum J\ensuremath≤2. By solving the coupled channel Schr"odinger equations, due to the strong tensor force of one-pion exchange, we find bound and/or resonant states of various quantum numbers.