We compute on the lattice the on-shell proton matrix element of the topological charge density in the quenched approximation. Our calculation makes use of a nonperturbative means of determining the multiplicative renormalization of the topological charge density. This work is a first step towards a computation of the proton spin structure function, the so-called spin content of the proton, in full QCD.

THE PROTON MATRIX ELEMENT OF THE TOPOLOGICAL CHARGE IN QUENCHED QCD

VICARI, ETTORE
1994

Abstract

We compute on the lattice the on-shell proton matrix element of the topological charge density in the quenched approximation. Our calculation makes use of a nonperturbative means of determining the multiplicative renormalization of the topological charge density. This work is a first step towards a computation of the proton spin structure function, the so-called spin content of the proton, in full QCD.
Alles, B; Campostrini, M; Deldebbio, L; Digiacomo, A; Panagopoulos, H; Vicari, Ettore
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Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/11568/24783
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