Search for the rare decays B-->Kl(+)l(-) and B-->K(*)l(+)l(-).

We present results from a search for the flavor-changing neutral current decays B-->Kl(+)l(-) and B-->K(*)l(+)l(-), where l(+)l(-) is either an e(+)e(-) or mu(+)mu(-) pair. The data sample comprises 22.7 x 10(6) Upsilon(4S)-->B(-)B decays collected with the BABAR detector at the...

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Päätekijät: Aubert, B, Boutigny, D, Gaillard, J, Hicheur, A, Karyotakis, Y, Lees, J, Robbe, P, Tisserand, V, Palano, A, Pompili, A, Chen, G, Chen, J, Qi, N, Rong, G, Wang, P, Zhu, Y, Eigen, G, Stugu, B, Abrams, G, Borgland, A, Breon, AB, Brown, D, Button-Shafer, J, Cahn, R, Clark, A
Aineistotyyppi: Journal article
Kieli:English
Julkaistu: 2002
_version_ 1826289216458326016
author Aubert, B
Boutigny, D
Gaillard, J
Hicheur, A
Karyotakis, Y
Lees, J
Robbe, P
Tisserand, V
Palano, A
Pompili, A
Chen, G
Chen, J
Qi, N
Rong, G
Wang, P
Zhu, Y
Eigen, G
Stugu, B
Abrams, G
Borgland, A
Breon, AB
Brown, D
Button-Shafer, J
Cahn, R
Clark, A
author_facet Aubert, B
Boutigny, D
Gaillard, J
Hicheur, A
Karyotakis, Y
Lees, J
Robbe, P
Tisserand, V
Palano, A
Pompili, A
Chen, G
Chen, J
Qi, N
Rong, G
Wang, P
Zhu, Y
Eigen, G
Stugu, B
Abrams, G
Borgland, A
Breon, AB
Brown, D
Button-Shafer, J
Cahn, R
Clark, A
author_sort Aubert, B
collection OXFORD
description We present results from a search for the flavor-changing neutral current decays B-->Kl(+)l(-) and B-->K(*)l(+)l(-), where l(+)l(-) is either an e(+)e(-) or mu(+)mu(-) pair. The data sample comprises 22.7 x 10(6) Upsilon(4S)-->B(-)B decays collected with the BABAR detector at the PEP-II B Factory. We obtain the 90% C.L. upper limits B(B-->Kl(+)l(-))<0.51 x 10(-6) and B(B-->K(*)l(+)l(-))<3.1 x 10(-6), close to standard model predictions for these branching fractions. We have also obtained limits on the lepton-family-violating decays B-->Ke+/-mu(-/+) and B-->K(*)e(+/-)mu(-/+).
first_indexed 2024-03-07T02:25:31Z
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language English
last_indexed 2024-03-07T02:25:31Z
publishDate 2002
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spelling oxford-uuid:a56fb185-9d34-4e71-bee8-221e9f9035d32022-03-27T02:40:41ZSearch for the rare decays B-->Kl(+)l(-) and B-->K(*)l(+)l(-).Journal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:a56fb185-9d34-4e71-bee8-221e9f9035d3EnglishSymplectic Elements at Oxford2002Aubert, BBoutigny, DGaillard, JHicheur, AKaryotakis, YLees, JRobbe, PTisserand, VPalano, APompili, AChen, GChen, JQi, NRong, GWang, PZhu, YEigen, GStugu, BAbrams, GBorgland, ABreon, ABBrown, DButton-Shafer, JCahn, RClark, AWe present results from a search for the flavor-changing neutral current decays B-->Kl(+)l(-) and B-->K(*)l(+)l(-), where l(+)l(-) is either an e(+)e(-) or mu(+)mu(-) pair. The data sample comprises 22.7 x 10(6) Upsilon(4S)-->B(-)B decays collected with the BABAR detector at the PEP-II B Factory. We obtain the 90% C.L. upper limits B(B-->Kl(+)l(-))<0.51 x 10(-6) and B(B-->K(*)l(+)l(-))<3.1 x 10(-6), close to standard model predictions for these branching fractions. We have also obtained limits on the lepton-family-violating decays B-->Ke+/-mu(-/+) and B-->K(*)e(+/-)mu(-/+).
spellingShingle Aubert, B
Boutigny, D
Gaillard, J
Hicheur, A
Karyotakis, Y
Lees, J
Robbe, P
Tisserand, V
Palano, A
Pompili, A
Chen, G
Chen, J
Qi, N
Rong, G
Wang, P
Zhu, Y
Eigen, G
Stugu, B
Abrams, G
Borgland, A
Breon, AB
Brown, D
Button-Shafer, J
Cahn, R
Clark, A
Search for the rare decays B-->Kl(+)l(-) and B-->K(*)l(+)l(-).
title Search for the rare decays B-->Kl(+)l(-) and B-->K(*)l(+)l(-).
title_full Search for the rare decays B-->Kl(+)l(-) and B-->K(*)l(+)l(-).
title_fullStr Search for the rare decays B-->Kl(+)l(-) and B-->K(*)l(+)l(-).
title_full_unstemmed Search for the rare decays B-->Kl(+)l(-) and B-->K(*)l(+)l(-).
title_short Search for the rare decays B-->Kl(+)l(-) and B-->K(*)l(+)l(-).
title_sort search for the rare decays b gt kl l and b gt k l l
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