Electroweak production of hybrid mesons in a flux-tube simulation of lattice QCD.

Journal article

We make the first calculation of the electroweak couplings of hybrid mesons to conventional mesons appropriate to photoproduction and to the decays of B or D mesons. E1 amplitudes are found to be large and may contribute in charge exchange gammap-->nH(+) allowing production of (among others) the charged 1(-+) exotic hybrid off a(2) exchange. Axial hybrid meson photoproduction is predicted to be large courtesy of pi exchange, and its strange hybrid counterpart is predicted in B-->psiK(H)(1(+)) with branching ratio B approximately 10(-4). Higher multipoles and some implications for hybrid charmonium are briefly discussed.

Authors: Close, F; Dudek, J

• Publication status: Published
• Journal: Physical Review Letters
• Volume: 91
• Issue: 14
• Pages: 142001
• Publication date: 2003-10-01
• DOI: 10.1103/physrevlett.91.142001
• EISSN: 1079-7114
• ISSN: 0031-9007
• Language: English