The boson-boson bound state in the massive Schwinger model
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✦ hep-ph
hep-th
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massstateboundboson-bosonfermionlowestmassivemodel
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We use (fermion) mass perturbation theory for the massive Schwinger model to compute the boson-boson bound state mass in lowest order. For small fermion mass the lowest possible Fock state turns out to give the main contribution and leads to a second order result for the bound state mass.
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