QSSR estimate of the B$_{B}$ parameter at next-to-leading order

We compute the leading .alpha.sub(s) corrections to the two-point correlator of the $O_{\Delta B=2}$ operator which controls the B.sup(0) B.bar.sup(0) mixing. Using this result within the QCD spectral sum rules approach and some phenomenologically reasonable assumptions in the parametrization of the...

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Detalles Bibliográficos
Autores principales: Narison, Stéphan, Pivovarov, A A
Lenguaje:eng
Publicado: 1994
Materias:
Particle Physics - Theory
Acceso en línea:https://dx.doi.org/10.1016/0370-2693(94)90739-0
http://cds.cern.ch/record/259852
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author Narison, Stéphan
Pivovarov, A A
author_facet Narison, Stéphan
Pivovarov, A A
author_sort Narison, Stéphan
collection CERN
description We compute the leading .alpha.sub(s) corrections to the two-point correlator of the $O_{\Delta B=2}$ operator which controls the B.sup(0) B.bar.sup(0) mixing. Using this result within the QCD spectral sum rules approach and some phenomenologically reasonable assumptions in the parametrization of the spectral function, we conclude that the vacuum saturation values $B_B\simeq B_{B^*}\simeq 1$ are satisfied within 15\%.
id cern-259852
institution Organización Europea para la Investigación Nuclear
language eng
publishDate 1994
record_format invenio
spelling cern-2598522019-09-30T06:29:59Zdoi:10.1016/0370-2693(94)90739-0http://cds.cern.ch/record/259852engNarison, StéphanPivovarov, A AQSSR estimate of the B$_{B}$ parameter at next-to-leading orderParticle Physics - TheoryWe compute the leading .alpha.sub(s) corrections to the two-point correlator of the $O_{\Delta B=2}$ operator which controls the B.sup(0) B.bar.sup(0) mixing. Using this result within the QCD spectral sum rules approach and some phenomenologically reasonable assumptions in the parametrization of the spectral function, we conclude that the vacuum saturation values $B_B\simeq B_{B^*}\simeq 1$ are satisfied within 15\%.hep-ph/9403225CERN-TH-7140-94PM-93-16oai:cds.cern.ch:2598521994-03-04
spellingShingle Particle Physics - Theory
Narison, Stéphan
Pivovarov, A A
QSSR estimate of the B$_{B}$ parameter at next-to-leading order
title QSSR estimate of the B$_{B}$ parameter at next-to-leading order
title_full QSSR estimate of the B$_{B}$ parameter at next-to-leading order
title_fullStr QSSR estimate of the B$_{B}$ parameter at next-to-leading order
title_full_unstemmed QSSR estimate of the B$_{B}$ parameter at next-to-leading order
title_short QSSR estimate of the B$_{B}$ parameter at next-to-leading order
title_sort qssr estimate of the b$_{b}$ parameter at next-to-leading order
topic Particle Physics - Theory
url https://dx.doi.org/10.1016/0370-2693(94)90739-0
http://cds.cern.ch/record/259852
work_keys_str_mv AT narisonstephan qssrestimateofthebbparameteratnexttoleadingorder
AT pivovarovaa qssrestimateofthebbparameteratnexttoleadingorder

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