Effective lifetime measurements in the B-s(0) -> K+K-, B-0 -> K+pi(-) and B-s(0) -> pi K-+(-) 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; 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.2014.07.051

Effective lifetime measurements in the B-s(0) -> K+K-, B-0 -> K+pi(-) and B-s(0) -> pi K-+(-) 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, 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

Measurements of the effective lifetimes in the B<inf>s</inf>⁰→K⁺K^-,^B0→^{K +π-} and Bs0→π+K- decays are presented using 1.0^{fb -1} of pp collision data collected at a centre-of-mass energy of 7 TeV by the LHCb experiment. The analysis uses a data-driven approach to correct for the decay time acceptance. The measured effective lifetimes areτBs0→K+K-=1.407±0.016(stat)±0.007(syst) ps,τB0→K+π-=1.524±0.011(stat)±0.004(syst) ps,τBs0→π+K-=1.60±0.06(stat)±0.01(syst) ps. This is the most precise determination to date of the effective lifetime in the Bs0→K+K- decay and provides constraints on contributions from physics beyond the Standard Model to the Bs0 mixing phase and the width difference δ<inf>Γs</inf>. © 2014 The Authors.

Original language	English
Pages (from-to)	446-454
Journal	Physics Letters B
Volume	736
DOIs	https://doi.org/10.1016/j.physletb.2014.07.051
Publication status	Published - 2014

Bibliographical note

PT: J; NR: 34; TC: 0; J9: PHYS LETT B; PG: 9; GA: AO6UR; UT: WOS:000341487800066

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10.1016/j.physletb.2014.07.051

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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., Li, Y. J., Merk, M. H. M., Oggero, S., Raven, H. G., Schiller, M., Syropoulos, V., Tolk, S., Garcia, M., & Wu, S. (2014). Effective lifetime measurements in the B-s(0) -> K+K-, B-0 -> K+pi(-) and B-s(0) -> pi K-+(-) decays. Physics Letters B, 736, 446-454. https://doi.org/10.1016/j.physletb.2014.07.051

@article{8dd34abf41c94604a062845b9208fc18,

title = "Effective lifetime measurements in the B-s(0) -> K+K-, B-0 -> K+pi(-) and B-s(0) -> pi K-+(-) decays",

abstract = "Measurements of the effective lifetimes in the Bs0→K+K-,B0→K +π- and Bs0→π+K- decays are presented using 1.0 fb -1 of pp collision data collected at a centre-of-mass energy of 7 TeV by the LHCb experiment. The analysis uses a data-driven approach to correct for the decay time acceptance. The measured effective lifetimes areτBs0→K+K-=1.407±0.016(stat)±0.007(syst) ps,τB0→K+π-=1.524±0.011(stat)±0.004(syst) ps,τBs0→π+K-=1.60±0.06(stat)±0.01(syst) ps. This is the most precise determination to date of the effective lifetime in the Bs0→K+K- decay and provides constraints on contributions from physics beyond the Standard Model to the Bs0 mixing phase and the width difference δΓs. {\textcopyright} 2014 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 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: 34; TC: 0; J9: PHYS LETT B; PG: 9; GA: AO6UR; UT: WOS:000341487800066",

year = "2014",

doi = "10.1016/j.physletb.2014.07.051",

language = "English",

volume = "736",

pages = "446--454",

journal = "Physics Letters B",

issn = "0370-2693",

publisher = "Elsevier B.V.",

}

Aaij, R, van den Brand, JFJ, Garcia, LC, De Bruyn, K, Farinelli, C, Heijne, VAM, Ketel, TJ, Koopman, R, Lambert, DM, Lambert, RW, Li, YJ, Merk, MHM, Oggero, S, Raven, HG, Schiller, M, Syropoulos, V, Tolk, S, Garcia, M & Wu, S 2014, 'Effective lifetime measurements in the B-s(0) -> K+K-, B-0 -> K+pi(-) and B-s(0) -> pi K-+(-) decays', Physics Letters B, vol. 736, pp. 446-454. https://doi.org/10.1016/j.physletb.2014.07.051

TY - JOUR

T1 - Effective lifetime measurements in the B-s(0) -> K+K-, B-0 -> K+pi(-) and B-s(0) -> pi K-+(-) 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 - 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: 34; TC: 0; J9: PHYS LETT B; PG: 9; GA: AO6UR; UT: WOS:000341487800066

PY - 2014

Y1 - 2014

N2 - Measurements of the effective lifetimes in the Bs0→K+K-,B0→K +π- and Bs0→π+K- decays are presented using 1.0 fb -1 of pp collision data collected at a centre-of-mass energy of 7 TeV by the LHCb experiment. The analysis uses a data-driven approach to correct for the decay time acceptance. The measured effective lifetimes areτBs0→K+K-=1.407±0.016(stat)±0.007(syst) ps,τB0→K+π-=1.524±0.011(stat)±0.004(syst) ps,τBs0→π+K-=1.60±0.06(stat)±0.01(syst) ps. This is the most precise determination to date of the effective lifetime in the Bs0→K+K- decay and provides constraints on contributions from physics beyond the Standard Model to the Bs0 mixing phase and the width difference δΓs. © 2014 The Authors.

AB - Measurements of the effective lifetimes in the Bs0→K+K-,B0→K +π- and Bs0→π+K- decays are presented using 1.0 fb -1 of pp collision data collected at a centre-of-mass energy of 7 TeV by the LHCb experiment. The analysis uses a data-driven approach to correct for the decay time acceptance. The measured effective lifetimes areτBs0→K+K-=1.407±0.016(stat)±0.007(syst) ps,τB0→K+π-=1.524±0.011(stat)±0.004(syst) ps,τBs0→π+K-=1.60±0.06(stat)±0.01(syst) ps. This is the most precise determination to date of the effective lifetime in the Bs0→K+K- decay and provides constraints on contributions from physics beyond the Standard Model to the Bs0 mixing phase and the width difference δΓs. © 2014 The Authors.

U2 - 10.1016/j.physletb.2014.07.051

DO - 10.1016/j.physletb.2014.07.051

M3 - Article

SN - 0370-2693

VL - 736

SP - 446

EP - 454

JO - Physics Letters B

JF - Physics Letters B

ER -

Effective lifetime measurements in the B-s(0) -> K+K-, B-0 -> K+pi(-) and B-s(0) -> pi K-+(-) decays

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