Exotic and excited-state meson spectroscopy and radiative transitions from lattice QCD
We discuss recent progress in extracting the excited meson spectrum and radiative transition form factors using lattice QCD. We mention results in the charmonium sector, including the first lattice QCD calculation of radiative transition rates involving excited charmonium states, highlighting results for high spin and exotic states. We present recent results on a highly excited isovector meson spectrum from dynamical anisotropic lattices. Using carefully constructed operators we show how the continuum spin of extracted states can be reliably identified and confidently extract excited states, states with exotic quantum numbers and states of high spin. This spectrum includes the first spin-four state extracted from lattice QCD. We conclude with some comments on future prospects.
- Research Organization:
- Thomas Jefferson National Accelerator Facility (TJNAF), Newport News, VA (United States)
- Sponsoring Organization:
- USDOE Office of Science (SC)
- DOE Contract Number:
- AC05-06OR23177
- OSTI ID:
- 985710
- Report Number(s):
- JLAB-THY-09-1115; DOE/OR/23177-1171; TRN: US1006182
- Journal Information:
- Chinese Physics C, Vol. 34, Issue 9; Conference: 5th International Conference On Quarks And Nuclear Physics (QNP09), 21-26 Sep 2009, Beijing, China
- Country of Publication:
- United States
- Language:
- English
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