Measurement of the flavour-specific CP-violating asymmetry a(sl)(s) in B-s(0) decays

R. Aaij; J.F.J. van den Brand; L.C. Garcia; K. De Bruyn; C. Farinelli; V.A.M. Heijne; T.J. Ketel; R. Koopman; D.M. Lambert; R.W. Lambert; J. van Leerdam; Y.J. Li; M.H.M. Merk; S. Oggero; H.G. Raven; M. Schiller; V. Syropoulos; S. Tolk; M. Garcia; S. Wu

doi:10.1016/j.physletb.2013.12.030

Measurement of the flavour-specific CP-violating asymmetry a(sl)(s) in B-s(0) decays

R. Aaij, J.F.J. van den Brand, L.C. Garcia, K. De Bruyn, C. Farinelli, V.A.M. Heijne, T.J. Ketel, R. Koopman, D.M. Lambert, R.W. Lambert, J. van Leerdam, Y.J. Li, M.H.M. Merk, S. Oggero, H.G. Raven, M. Schiller, V. Syropoulos, S. Tolk, M. Garcia, S. Wu

(Astro)-Particles Physics

Research output: Contribution to Journal › Article › Academic › peer-review

Abstract

The CP-violating asymmetry a^s<inf>sl</inf> is studied using semileptonic decays of B⁰<inf>s</inf> and B⁰<inf>s</inf> mesons produced in pp collisions at a centre-of-mass energy of 7 TeV at the LHC, exploiting a data sample corresponding to an integrated luminosity of 1.0fb^-1. The reconstructed final states are D^±<inf>s</inf>μ^∓, with the D^±<inf>s</inf> particle decaying in the φπ^± mode. The D^±<inf>s</inf>μ^∓ yields are summed over B̄⁰<inf>s</inf> and B⁰<inf>s</inf> initial states, and integrated with respect to decay time. Data-driven methods are used to measure efficiency ratios. We obtain a^s<inf>sl</inf>=(-0.06±0.50±0.36)%, where the first uncertainty is statistical and the second systematic. © 2013 The Authors.

Original language	English
Pages (from-to)	607-615
Journal	Physics Letters B
Volume	728
DOIs	https://doi.org/10.1016/j.physletb.2013.12.030
Publication status	Published - 2014

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PT: J; NR: 22; TC: 15; J9: PHYS LETT B; PG: 9; GA: 301TW; UT: WOS:000330556000091

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Aaij, R., van den Brand, J. F. J., Garcia, L. C., De Bruyn, K., Farinelli, C., Heijne, V. A. M., Ketel, T. J., Koopman, R., Lambert, D. M., Lambert, R. W., van Leerdam, J., Li, Y. J., Merk, M. H. M., Oggero, S., Raven, H. G., Schiller, M., Syropoulos, V., Tolk, S., Garcia, M., & Wu, S. (2014). Measurement of the flavour-specific CP-violating asymmetry a(sl)(s) in B-s(0) decays. Physics Letters B, 728, 607-615. https://doi.org/10.1016/j.physletb.2013.12.030

@article{df4b0e34cc3b46e2beafce90de226590,

title = "Measurement of the flavour-specific CP-violating asymmetry a(sl)(s) in B-s(0) decays",

abstract = "The CP-violating asymmetry assl is studied using semileptonic decays of B0s and B0s mesons produced in pp collisions at a centre-of-mass energy of 7 TeV at the LHC, exploiting a data sample corresponding to an integrated luminosity of 1.0fb-1. The reconstructed final states are D±sμ∓, with the D±s particle decaying in the φπ± mode. The D±sμ∓ yields are summed over {\=B}0s and B0s initial states, and integrated with respect to decay time. Data-driven methods are used to measure efficiency ratios. We obtain assl=(-0.06±0.50±0.36)%, where the first uncertainty is statistical and the second systematic. {\textcopyright} 2013 The Authors.",

author = "R. Aaij and {van den Brand}, J.F.J. and L.C. Garcia and {De Bruyn}, K. and C. Farinelli and V.A.M. Heijne and T.J. Ketel and R. Koopman and D.M. Lambert and R.W. Lambert and {van Leerdam}, J. and Y.J. Li and M.H.M. Merk and S. Oggero and H.G. Raven and M. Schiller and V. Syropoulos and S. Tolk and M. Garcia and S. Wu",

note = "PT: J; NR: 22; TC: 15; J9: PHYS LETT B; PG: 9; GA: 301TW; UT: WOS:000330556000091",

year = "2014",

doi = "10.1016/j.physletb.2013.12.030",

language = "English",

volume = "728",

pages = "607--615",

journal = "Physics Letters B",

issn = "0370-2693",

publisher = "Elsevier",

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Aaij, R, van den Brand, JFJ, Garcia, LC, De Bruyn, K, Farinelli, C, Heijne, VAM, Ketel, TJ, Koopman, R, Lambert, DM, Lambert, RW, van Leerdam, J, Li, YJ, Merk, MHM, Oggero, S, Raven, HG, Schiller, M, Syropoulos, V, Tolk, S, Garcia, M & Wu, S 2014, 'Measurement of the flavour-specific CP-violating asymmetry a(sl)(s) in B-s(0) decays', Physics Letters B, vol. 728, pp. 607-615. https://doi.org/10.1016/j.physletb.2013.12.030

TY - JOUR

T1 - Measurement of the flavour-specific CP-violating asymmetry a(sl)(s) in B-s(0) decays

AU - Aaij, R.

AU - van den Brand, J.F.J.

AU - Garcia, L.C.

AU - De Bruyn, K.

AU - Farinelli, C.

AU - Heijne, V.A.M.

AU - Ketel, T.J.

AU - Koopman, R.

AU - Lambert, D.M.

AU - Lambert, R.W.

AU - van Leerdam, J.

AU - Li, Y.J.

AU - Merk, M.H.M.

AU - Oggero, S.

AU - Raven, H.G.

AU - Schiller, M.

AU - Syropoulos, V.

AU - Tolk, S.

AU - Garcia, M.

AU - Wu, S.

N1 - PT: J; NR: 22; TC: 15; J9: PHYS LETT B; PG: 9; GA: 301TW; UT: WOS:000330556000091

PY - 2014

Y1 - 2014

N2 - The CP-violating asymmetry assl is studied using semileptonic decays of B0s and B0s mesons produced in pp collisions at a centre-of-mass energy of 7 TeV at the LHC, exploiting a data sample corresponding to an integrated luminosity of 1.0fb-1. The reconstructed final states are D±sμ∓, with the D±s particle decaying in the φπ± mode. The D±sμ∓ yields are summed over B̄0s and B0s initial states, and integrated with respect to decay time. Data-driven methods are used to measure efficiency ratios. We obtain assl=(-0.06±0.50±0.36)%, where the first uncertainty is statistical and the second systematic. © 2013 The Authors.

AB - The CP-violating asymmetry assl is studied using semileptonic decays of B0s and B0s mesons produced in pp collisions at a centre-of-mass energy of 7 TeV at the LHC, exploiting a data sample corresponding to an integrated luminosity of 1.0fb-1. The reconstructed final states are D±sμ∓, with the D±s particle decaying in the φπ± mode. The D±sμ∓ yields are summed over B̄0s and B0s initial states, and integrated with respect to decay time. Data-driven methods are used to measure efficiency ratios. We obtain assl=(-0.06±0.50±0.36)%, where the first uncertainty is statistical and the second systematic. © 2013 The Authors.

U2 - 10.1016/j.physletb.2013.12.030

DO - 10.1016/j.physletb.2013.12.030

M3 - Article

SN - 0370-2693

VL - 728

SP - 607

EP - 615

JO - Physics Letters B

JF - Physics Letters B

ER -

Measurement of the flavour-specific CP-violating asymmetry a(sl)(s) in B-s(0) decays

Abstract

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