2000 character limit reached
Electric dipole transitions in pNRQCD (1301.1308v1)
Published 7 Jan 2013 in hep-ph, hep-ex, and hep-lat
Abstract: We present a theroretical treatment of electric dipole (E1) transitions of heavy quarkonia based on effective field theories. Within the framework of potential nonrelativistic QCD (pNRQCD) we derive the complete set of relativistic corrections at relative order $v2$ to the decay rate in a systematic, model-independent way. Former results from potential model calculations will be scrutinized and a phenomenological analysis with lattice input in relation to experimental data will be presented.
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