New formulation of γZ box corrections to the weak charge of the proton

We present a new formulation of one of the major radiative corrections to the weak charge of the proton-that arising from the axial-vector hadron part of the γZ box diagram, ℜe□(γZ)(A). This formulation, based on dispersion relations, relates the γZ contributions to moments of the F(3)(γZ) interfere...

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Veröffentlicht in:	Physical review letters 2011-08, Vol.107 (8), p.081801-081801, Article 081801
Hauptverfasser:	Blunden, P G, Melnitchouk, W, Thomas, A W
Format:	Artikel
Sprache:	eng
Schlagworte:	ACCURACY DISPERSION RELATIONS HADRONS PHYSICS OF ELEMENTARY PARTICLES AND FIELDS PROTONS RADIATIVE CORRECTIONS STRUCTURE FUNCTIONS
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