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dc.contributor.author
ALEPH Collaboration
dc.contributor.author
Heister, Arno
dc.contributor.author
Dissertori, Günther
dc.contributor.author
et al.
dc.date.accessioned
2019-04-30T11:17:07Z
dc.date.available
2017-06-10T08:00:50Z
dc.date.available
2018-03-12T10:19:05Z
dc.date.available
2019-04-25T08:10:06Z
dc.date.available
2019-04-30T11:17:07Z
dc.date.issued
2003-07
dc.identifier.issn
1434-6044
dc.identifier.issn
1434-6052
dc.identifier.other
10.1140/epjc/s2003-01230-5
en_US
dc.identifier.uri
http://hdl.handle.net/20.500.11850/54463
dc.identifier.doi
10.3929/ethz-b-000054463
dc.description.abstract
An improved search for B s 0 oscillations is performed in the ALEPH data sample collected during the first phase of LEP, and reprocessed in 1998. Three analyses based on complementary event selections are presented. First, decays of B s 0 mesons into hadronic flavour eigenstates are fully reconstructed. This selection yields a small sample of candidates with excellent decay length and momentum resolution and hi gh average B s 0 purity. Semileptonic decays with a reconstructed D s - meson provide a second sample with larger statistics, high average B s 0 purity, but a poorer momentum and decay length resolution due to the partial decay reconstruction. Finally, semileptonic b-hadron decays are inclusively selected and yield the data sample with the highest sensitivity to B s 0 oscillations, as the much higher statistics compensate for the low average B s 0 purity and poorer time resolution. A lower limit is set atΔms>10.9ps-1 at 95% C.L., significantly lower than the expected limit of 15.2 ps-1.
en_US
dc.format
application/pdf
en_US
dc.language.iso
en
en_US
dc.publisher
Springer
en_US
dc.rights.uri
http://creativecommons.org/licenses/by/4.0/
dc.title
Improved search for B-S(0)-(B)over-bar(S)(0) oscillations
en_US
dc.type
Journal Article
dc.rights.license
Creative Commons Attribution 4.0 International
dc.date.published
2003-06-11
ethz.journal.title
The European Physical Journal C
ethz.journal.volume
29
en_US
ethz.journal.issue
2
en_US
ethz.journal.abbreviated
Eur. Phys. J. C
ethz.pages.start
143
en_US
ethz.pages.end
170
en_US
ethz.version.deposit
publishedVersion
en_US
ethz.identifier.wos
ethz.identifier.nebis
001879220
ethz.publication.place
Heidelberg
en_US
ethz.publication.status
published
en_US
ethz.date.deposited
2017-06-10T08:02:04Z
ethz.source
ECIT
ethz.identifier.importid
imp59364fa9b6dae49054
ethz.ecitpid
pub:87905
ethz.eth
yes
en_US
ethz.availability
Open access
en_US
ethz.rosetta.installDate
2017-07-14T12:45:56Z
ethz.rosetta.lastUpdated
2019-04-30T11:17:12Z
ethz.rosetta.exportRequired
true
ethz.rosetta.versionExported
true
ethz.COinS
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