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

73   0   0.0 ( 0 )
 نشر من قبل Naoto Tsutsui
 تاريخ النشر 1999
  مجال البحث
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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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