Nucleon decay matrix elements with the Wilson quark action: an update

Details Nucleon decay matrix elements with the Wilson quark action: an update Nucleon decay matrix elements with the Wilson quark action: an update

1999-10-04

arxiv.org/abs/hep-lat/9910009v1

Nucl.Phys.Proc.Suppl. 83 (2000) 256-258

Physics

High Energy Physics

High Energy Physics - Lattice

LATTICE99(matrixelements), 3 pages, 2 figures

Scientific paper

We present preliminary results of a new lattice computation of hadronic matrix elements of baryon number violating operators which appear in the low-energy effective Lagrangian of (SUSY-)Grand Unified Theories. The contribution of irrelevant form factor which has caused an underestimate of the matrix elements in previous studies is subtracted in this calculation. Our results are 2$\sim$4 times larger than the most conservative values often employed in phenomenological analyses of nucleon decay with specific GUT models.

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