Beyond the adiabatic approximation: The Impact of thresholds on the hadronic spectrum

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Beyond the adiabatic approximation: The Impact of thresholds on the hadronic spectrum

In the adiabatic approximation, most of the effects of quark-antiquark loops on spectroscopy can be absorbed into a static interquark potential. I develop a formalism which can be used to treat the residual nonadiabatic effects associated with the presence of nearby hadronic thresholds for heavy quarks. I then define a potential which includes additional high energy corrections to the adiabatic limit which would be present for finite quark masses. This "improved" potential allows a systematic low energy expansion of the impact of thresholds on hadronic spectra.

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Unit Title: Beyond the adiabatic approximation: The Impact of thresholds on the hadronic spectrum

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Creator: Isgur, Nathan

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Language: en

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Other Descriptive Data: JLAB-THY-99-01, nucl-th/9901032Phys.Rev.D 60 (1999) 054013https://doi.org/10.1103/PhysRevD.60.054013

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