Measurement of the Bs0→J/ψKS0 effective lifetime from proton-proton collisions at s = 13 TeV

The CMS collaboration

doi:10.1007/JHEP10(2024)247

Measurement of the Bs0→J/ψKS0 effective lifetime from proton-proton collisions at s = 13 TeV

The CMS collaboration

Department of Physics

Research output: Contribution to journal › Article › peer-review

2 Scopus citations

Abstract

The effective lifetime of the B_s⁰ meson in the decay B_s⁰→J/ψK_S⁰ is measured using data collected during 2016–2018 with the CMS detector in s = 13 TeV proton-proton collisions at the LHC, corresponding to an integrated luminosity of 140 fb⁻¹. The effective lifetime is determined by performing a two-dimensional unbinned maximum likelihood fit to the B_s⁰ meson invariant mass and proper decay time distributions. The resulting value of 1.59 ± 0.07(stat) ± 0.03(syst) ps is the most precise measurement to date and is in good agreement with the expected value.

Original language	English
Article number	247
Journal	Journal of High Energy Physics
Volume	2024
Issue number	10
DOIs	https://doi.org/10.1007/JHEP10(2024)247
State	Published - Oct 2024

Keywords

B Physics
Hadron-Hadron Scattering
Lifetime

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10.1007/JHEP10(2024)247

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@article{373166a636a54e879ef518645ea160ce,

title = "Measurement of the Bs0→J/ψKS0 effective lifetime from proton-proton collisions at s = 13 TeV",

abstract = "The effective lifetime of the Bs0 meson in the decay Bs0→J/ψKS0 is measured using data collected during 2016–2018 with the CMS detector in s = 13 TeV proton-proton collisions at the LHC, corresponding to an integrated luminosity of 140 fb−1. The effective lifetime is determined by performing a two-dimensional unbinned maximum likelihood fit to the Bs0 meson invariant mass and proper decay time distributions. The resulting value of 1.59 ± 0.07(stat) ± 0.03(syst) ps is the most precise measurement to date and is in good agreement with the expected value.",

keywords = "B Physics, Hadron-Hadron Scattering, Lifetime",

author = "\{The CMS collaboration\} and A. Hayrapetyan and A. Tumasyan and W. Adam and Andrejkovic, \{J. W.\} and T. Bergauer and S. Chatterjee and K. Damanakis and M. Dragicevic and Hussain, \{P. S.\} and M. Jeitler and N. Krammer and A. Li and D. Liko and I. Mikulec and J. Schieck and R. Sch{\"o}fbeck and D. Schwarz and M. Sonawane and W. Waltenberger and Wulz, \{C. E.\} and T. Janssen and \{Van Laer\}, T. and \{Van Mechelen\}, P. and N. Breugelmans and J. D{\textquoteright}Hondt and S. Dansana and \{De Moor\}, A. and M. Delcourt and F. Heyen and S. Lowette and I. Makarenko and D. M{\"u}ller and S. Tavernier and M. Tytgat and \{Van Onsem\}, \{G. P.\} and \{Van Putte\}, S. and D. Vannerom and B. Bilin and B. Clerbaux and Das, \{A. K.\} and \{De Lentdecker\}, G. and H. Evard and L. Favart and P. Gianneios and J. Jaramillo and A. Khalilzadeh and Khan, \{F. A.\} and K. Lee and M. Mahdavikhorrami and Lee, \{J. S.H.\}",

note = "Publisher Copyright: {\textcopyright} The Author(s) 2024.",

year = "2024",

month = oct,

doi = "10.1007/JHEP10(2024)247",

language = "English",

volume = "2024",

journal = "Journal of High Energy Physics",

issn = "1029-8479",

publisher = "Springer Verlag",

number = "10",

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TY - JOUR

T1 - Measurement of the Bs0→J/ψKS0 effective lifetime from proton-proton collisions at s = 13 TeV

AU - The CMS collaboration

AU - Hayrapetyan, A.

AU - Tumasyan, A.

AU - Adam, W.

AU - Andrejkovic, J. W.

AU - Bergauer, T.

AU - Chatterjee, S.

AU - Damanakis, K.

AU - Dragicevic, M.

AU - Hussain, P. S.

AU - Jeitler, M.

AU - Krammer, N.

AU - Li, A.

AU - Liko, D.

AU - Mikulec, I.

AU - Schieck, J.

AU - Schöfbeck, R.

AU - Schwarz, D.

AU - Sonawane, M.

AU - Waltenberger, W.

AU - Wulz, C. E.

AU - Janssen, T.

AU - Van Laer, T.

AU - Van Mechelen, P.

AU - Breugelmans, N.

AU - D’Hondt, J.

AU - Dansana, S.

AU - De Moor, A.

AU - Delcourt, M.

AU - Heyen, F.

AU - Lowette, S.

AU - Makarenko, I.

AU - Müller, D.

AU - Tavernier, S.

AU - Tytgat, M.

AU - Van Onsem, G. P.

AU - Van Putte, S.

AU - Vannerom, D.

AU - Bilin, B.

AU - Clerbaux, B.

AU - Das, A. K.

AU - De Lentdecker, G.

AU - Evard, H.

AU - Favart, L.

AU - Gianneios, P.

AU - Jaramillo, J.

AU - Khalilzadeh, A.

AU - Khan, F. A.

AU - Lee, K.

AU - Mahdavikhorrami, M.

AU - Lee, J. S.H.

PY - 2024/10

Y1 - 2024/10

N2 - The effective lifetime of the Bs0 meson in the decay Bs0→J/ψKS0 is measured using data collected during 2016–2018 with the CMS detector in s = 13 TeV proton-proton collisions at the LHC, corresponding to an integrated luminosity of 140 fb−1. The effective lifetime is determined by performing a two-dimensional unbinned maximum likelihood fit to the Bs0 meson invariant mass and proper decay time distributions. The resulting value of 1.59 ± 0.07(stat) ± 0.03(syst) ps is the most precise measurement to date and is in good agreement with the expected value.

AB - The effective lifetime of the Bs0 meson in the decay Bs0→J/ψKS0 is measured using data collected during 2016–2018 with the CMS detector in s = 13 TeV proton-proton collisions at the LHC, corresponding to an integrated luminosity of 140 fb−1. The effective lifetime is determined by performing a two-dimensional unbinned maximum likelihood fit to the Bs0 meson invariant mass and proper decay time distributions. The resulting value of 1.59 ± 0.07(stat) ± 0.03(syst) ps is the most precise measurement to date and is in good agreement with the expected value.

KW - B Physics

KW - Hadron-Hadron Scattering

KW - Lifetime

UR - https://www.scopus.com/pages/publications/85209221144

U2 - 10.1007/JHEP10(2024)247

DO - 10.1007/JHEP10(2024)247

M3 - Article

AN - SCOPUS:85209221144

SN - 1029-8479

VL - 2024

JO - Journal of High Energy Physics

JF - Journal of High Energy Physics

IS - 10

M1 - 247

ER -

Measurement of the Bs0→J/ψKS0 effective lifetime from proton-proton collisions at s = 13 TeV

Abstract

Keywords

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