QCD corrections to inclusive $ΔS=1,2$ transitions

Details QCD corrections to inclusive $ΔS=1,2$ transitions QCD corrections to inclusive $ΔS=1,2$ transitions

1994-09-05

arxiv.org/abs/hep-ph/9409222v1

Nucl.Phys.Proc.Suppl. 39BC (1995) 260-262

Physics

High Energy Physics

High Energy Physics - Phenomenology

3 pages, Invited talk presented at ``QCD'94'', Montpellier, France, July 7 - 13, 1994, hep-ph/yymmnnn

Scientific paper

10.1016/0920-5632(95)00082-K

The talk summarises a calculation of the two-point functions for $\Delta S=1$ current-current and QCD-penguin operators, as well as for the $\Delta S=2$ operator, at the next-to-leading order. The size of the gluonic corrections to current-current operators is large, providing a qualitative understanding of the observed enhancement in $\Delta I=1/2$ transitions. In the $\Delta S=2$ sector the QCD corrections are quite moderate ($\approx -20\%$). This work has been done in collaboration with Antonio Pich.

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