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Physics  2003 

Non-perturbative renormalisation and improvement of the local vector current for quenched and unquenched Wilson fermions

DOI: 10.1016/j.physletb.2003.11.050

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Abstract:

By considering the local vector current between nucleon states and imposing charge conservation, we determine its renormalisation constant and quark mass improvement coefficient for Symanzik $O(a)$ improved Wilson fermions. The computation is first performed for quenched fermions (and for completeness also with unimproved fermions) and compared against known results. The two-flavour unquenched case is then considered.

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