The Threshold Expansion of the 2-loop Sunrise Selfmass Master Amplitudes
classification
✦ hep-ph
keywords
amplitudesmasterthresholdexpansionloopsunriseanalyticallyarbitrary
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The threshold behavior of the master amplitudes for two loop sunrise self-mass graph is studied by solving the system of differential equations, which they satisfy. The expansion at the threshold of the master amplitudes is obtained analytically for arbitrary masses.
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