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Improved search for B(0)S anti-B(0)S oscillations

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Improved search for B(0)S anti-B(0)S oscillations. / Heister, A.; ALEPH Collaboration, The; Bouhova-Thacker, Evelina et al.
In: The European Physical Journal C (EPJ C) - Particles and Fields, Vol. 29, No. 2, 07.2003, p. 143-170.

Research output: Contribution to Journal/MagazineJournal articlepeer-review

Harvard

Heister, A, ALEPH Collaboration, T, Bouhova-Thacker, E, Bowdery, C, Finch, A, Foster, F, Hughes, G & Jones, R 2003, 'Improved search for B(0)S anti-B(0)S oscillations', The European Physical Journal C (EPJ C) - Particles and Fields, vol. 29, no. 2, pp. 143-170. https://doi.org/10.1140/epjc/s2003-01230-5

APA

Heister, A., ALEPH Collaboration, T., Bouhova-Thacker, E., Bowdery, C., Finch, A., Foster, F., Hughes, G., & Jones, R. (2003). Improved search for B(0)S anti-B(0)S oscillations. The European Physical Journal C (EPJ C) - Particles and Fields, 29(2), 143-170. https://doi.org/10.1140/epjc/s2003-01230-5

Vancouver

Heister A, ALEPH Collaboration T, Bouhova-Thacker E, Bowdery C, Finch A, Foster F et al. Improved search for B(0)S anti-B(0)S oscillations. The European Physical Journal C (EPJ C) - Particles and Fields. 2003 Jul;29(2):143-170. doi: 10.1140/epjc/s2003-01230-5

Author

Heister, A. ; ALEPH Collaboration, The ; Bouhova-Thacker, Evelina et al. / Improved search for B(0)S anti-B(0)S oscillations. In: The European Physical Journal C (EPJ C) - Particles and Fields. 2003 ; Vol. 29, No. 2. pp. 143-170.

Bibtex

@article{05305525eed64a2dacddf316ac902d85,
title = "Improved search for B(0)S anti-B(0)S oscillations",
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 at Δms>10.9 ps-1 at 95% C.L., significantly lower than the expected limit of 15.2 ps-1.",
author = "A. Heister and {ALEPH Collaboration}, The and Evelina Bouhova-Thacker and Christopher Bowdery and Alexander Finch and Frank Foster and Gareth Hughes and Roger Jones",
year = "2003",
month = jul,
doi = "10.1140/epjc/s2003-01230-5",
language = "English",
volume = "29",
pages = "143--170",
journal = "The European Physical Journal C (EPJ C) - Particles and Fields",
issn = "1434-6052",
publisher = "SPRINGER",
number = "2",

}

RIS

TY - JOUR

T1 - Improved search for B(0)S anti-B(0)S oscillations

AU - Heister, A.

AU - ALEPH Collaboration, The

AU - Bouhova-Thacker, Evelina

AU - Bowdery, Christopher

AU - Finch, Alexander

AU - Foster, Frank

AU - Hughes, Gareth

AU - Jones, Roger

PY - 2003/7

Y1 - 2003/7

N2 - 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 at Δms>10.9 ps-1 at 95% C.L., significantly lower than the expected limit of 15.2 ps-1.

AB - 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 at Δms>10.9 ps-1 at 95% C.L., significantly lower than the expected limit of 15.2 ps-1.

U2 - 10.1140/epjc/s2003-01230-5

DO - 10.1140/epjc/s2003-01230-5

M3 - Journal article

VL - 29

SP - 143

EP - 170

JO - The European Physical Journal C (EPJ C) - Particles and Fields

JF - The European Physical Journal C (EPJ C) - Particles and Fields

SN - 1434-6052

IS - 2

ER -