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QCD corrections to inclusive ΔS=1,2 transitions at the next-to-leading order

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QCD corrections to inclusive ΔS=1,2 transitions at the next-to-leading order

dc.contributor.author	Jamin, Matthias
dc.contributor.author	Pich Zardoya, Antonio
dc.date.accessioned	2015-02-25T12:31:31Z
dc.date.available	2015-02-25T12:31:31Z
dc.date.issued	1994
dc.identifier.uri	http://hdl.handle.net/10550/42286
dc.description.abstract	The two-point functions for DELTAS = 1 current-current and QCD-penguin operators, as well as for the DELTAS = 2 operator, are calculated at the next-to-leading order. The calculation is performed in two different renormalization schemes for gamma5, and the compatibility of the results obtained in the two schemes is verified. The scale- and scheme-invariant combinations of spectral two-point functions and corresponding Wilson coefficients are constructed and analyzed. For DELTAS = 1, the QCD corrections to the CP-conserving part, dominated by current-current operators, are 40-120% at q2 = (1-3 GeV)2, Whereas the corrections to the imaginary part, mainly coming from the penguin operator Q6, are 100-240%. The large size of the gluonic corrections to current-current operators provides a qualitative understanding of the observed enhancement of DELTAI = 1/2 transitions. In the DELTAS = 2 sector the QCD corrections are quite moderate (almost-equal-to -20%).
dc.language.iso	eng
dc.relation.ispartof	Nuclear Physics B, 1994, vol. 425, num. 1-2, p. 15-38
dc.source	Jamin, Matthias Pich Zardoya, Antonio 1994 QCD corrections to inclusive ΔS=1,2 transitions at the next-to-leading order Nuclear Physics B 425 1-2 15 38
dc.subject	Física
dc.title	QCD corrections to inclusive ΔS=1,2 transitions at the next-to-leading order
dc.type	journal article	es_ES
dc.date.updated	2015-02-25T12:31:31Z
dc.identifier.doi	http://dx.doi.org/10.1016/0550-3213(94)90171-6
dc.identifier.idgrec	081666
dc.rights.accessRights	open access	es_ES