Exotic and excited-state meson spectroscopy and radiative transitions from lattice QCD

Conference · Wed Sep 01 04:00:00 EDT 2010 · Chinese Physics C

OSTI ID:985710

Thomas, Christopher

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, 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
• Conference Information: Journal Name: Chinese Physics C Journal Issue: 9 Journal Volume: 34
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
73 NUCLEAR PHYSICS AND RADIATION PHYSICS
CHARMONIUM
EXCITED STATES
FORM FACTORS
ISOVECTORS
MESON SPECTROSCOPY
MESONS
NUCLEAR PHYSICS
QUANTUM CHROMODYNAMICS
QUANTUM NUMBERS
QUARKS
SPIN