Measurement of the effective B_s^0 -> J/ψ K_S^0 lifetime

R. Aaij; J.F.J. van den Brand; F. Dettori; T.J. Ketel; R. Koopman; R.W. Lambert; D. Martinez-Santos; M.H.M. Merk; H.G. Raven; M. Schiller; V. Syropoulos; S. Tolk; Collaboration LHCb

doi:10.1016/j.nuclphysb.2013.04.021

Measurement of the effective B_s^0 -> J/ψ K_S^0 lifetime

R. Aaij, J.F.J. van den Brand, F. Dettori, T.J. Ketel, R. Koopman, R.W. Lambert, D. Martinez-Santos, M.H.M. Merk, H.G. Raven, M. Schiller, V. Syropoulos, S. Tolk, Collaboration LHCb

(Astro)-Particles Physics

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

Abstract

This paper reports the first measurement of the effective B⁰<inf>s</inf> →J/ψK⁰<inf>S</inf> lifetime and an updated measurement of its time-integrated branching fraction. Both measurements are performed with a data sample, corresponding to an integrated luminosity of 1.0 fb^-1 of pp collisions, recorded by the LHCb experiment in 2011 at a centre-of-mass energy of 7 TeV. The results are: τ ^eff<inf>J/ψK⁰S</inf> = 1.75±0.12 (stat)±0.07 (syst) ps and B(B⁰<inf>S</inf> →J/ψK⁰<inf>S</inf>) = (1.97 ± 0.23) × 10^-5. For the latter measurement, the uncertainty includes both statistical and systematic sources. © 2013 CERN. Published by Elsevier B.V.

Original language	English
Pages (from-to)	275-292
Journal	Nuclear Physics B
Volume	873
Issue number	2
DOIs	https://doi.org/10.1016/j.nuclphysb.2013.04.021
Publication status	Published - 2013

Bibliographical note

Aaij:2013eia

Access to Document

10.1016/j.nuclphysb.2013.04.021

Persistent URL (handle)

Copy link address

Cite this

@article{f14abdf4a0874b2690b6d074de63fa45,

title = "Measurement of the effective B_s^0 -> J/ψ K_S^0 lifetime",

abstract = "This paper reports the first measurement of the effective B0s →J/ψK0S lifetime and an updated measurement of its time-integrated branching fraction. Both measurements are performed with a data sample, corresponding to an integrated luminosity of 1.0 fb-1 of pp collisions, recorded by the LHCb experiment in 2011 at a centre-of-mass energy of 7 TeV. The results are: τ effJ/ψK0S = 1.75±0.12 (stat)±0.07 (syst) ps and B(B0S →J/ψK0S) = (1.97 ± 0.23) × 10-5. For the latter measurement, the uncertainty includes both statistical and systematic sources. {\textcopyright} 2013 CERN. Published by Elsevier B.V.",

author = "R. Aaij and {van den Brand}, J.F.J. and F. Dettori and T.J. Ketel and R. Koopman and R.W. Lambert and D. Martinez-Santos and M.H.M. Merk and H.G. Raven and M. Schiller and V. Syropoulos and S. Tolk and Collaboration LHCb",

note = "Aaij:2013eia",

year = "2013",

doi = "10.1016/j.nuclphysb.2013.04.021",

language = "English",

volume = "873",

pages = "275--292",

journal = "Nuclear Physics B",

issn = "0550-3213",

publisher = "Elsevier",

number = "2",

}

TY - JOUR

T1 - Measurement of the effective B_s^0 -> J/ψ K_S^0 lifetime

AU - Aaij, R.

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

AU - Dettori, F.

AU - Ketel, T.J.

AU - Koopman, R.

AU - Lambert, R.W.

AU - Martinez-Santos, D.

AU - Merk, M.H.M.

AU - Raven, H.G.

AU - Schiller, M.

AU - Syropoulos, V.

AU - Tolk, S.

AU - LHCb, Collaboration

N1 - Aaij:2013eia

PY - 2013

Y1 - 2013

N2 - This paper reports the first measurement of the effective B0s →J/ψK0S lifetime and an updated measurement of its time-integrated branching fraction. Both measurements are performed with a data sample, corresponding to an integrated luminosity of 1.0 fb-1 of pp collisions, recorded by the LHCb experiment in 2011 at a centre-of-mass energy of 7 TeV. The results are: τ effJ/ψK0S = 1.75±0.12 (stat)±0.07 (syst) ps and B(B0S →J/ψK0S) = (1.97 ± 0.23) × 10-5. For the latter measurement, the uncertainty includes both statistical and systematic sources. © 2013 CERN. Published by Elsevier B.V.

AB - This paper reports the first measurement of the effective B0s →J/ψK0S lifetime and an updated measurement of its time-integrated branching fraction. Both measurements are performed with a data sample, corresponding to an integrated luminosity of 1.0 fb-1 of pp collisions, recorded by the LHCb experiment in 2011 at a centre-of-mass energy of 7 TeV. The results are: τ effJ/ψK0S = 1.75±0.12 (stat)±0.07 (syst) ps and B(B0S →J/ψK0S) = (1.97 ± 0.23) × 10-5. For the latter measurement, the uncertainty includes both statistical and systematic sources. © 2013 CERN. Published by Elsevier B.V.

U2 - 10.1016/j.nuclphysb.2013.04.021

DO - 10.1016/j.nuclphysb.2013.04.021

M3 - Article

SN - 0550-3213

VL - 873

SP - 275

EP - 292

JO - Nuclear Physics B

JF - Nuclear Physics B

IS - 2

ER -

Measurement of the effective B_s^0 -> J/ψ K_S^0 lifetime

Abstract

Bibliographical note

Access to Document

Persistent URL (handle)

Fingerprint

Cite this