A measurement of ∆Γs

The LHCb Collaboration; W. Barter; F. Betti; A. Bohare; P. E. L. Clarke; R. Currie; S. Eisenhardt; K. Farmer; S. Gambetta; Y. Liu; S.E. Mitchell; F. Muheim; M. Needham; F. Oliva; R.H. O'Neil; O. Ozcelik; S. Petrucci; M. Richardson-Slipper; G. Sarpis; L. Soares Lavra; C. Vrahas; M. R. J. Williams

doi:10.1007/JHEP05(2024)253

A measurement of ∆Γs

The LHCb Collaboration, W. Barter, F. Betti, A. Bohare, P. E. L. Clarke, R. Currie, S. Eisenhardt, K. Farmer, S. Gambetta, Y. Liu, S.E. Mitchell, F. Muheim, M. Needham, F. Oliva, R.H. O'Neil, O. Ozcelik, S. Petrucci, M. Richardson-Slipper, G. Sarpis, L. Soares LavraC. Vrahas, M. R. J. Williams

School of Physics and Astronomy

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

Abstract

Using a dataset corresponding to 9 fb−1−1 of integrated luminosity collected with the LHCb detector between 2011 and 2018 in proton-proton collisions, the decay-time distributions of the decay modes Bs0→J/ψη′Bs0→J/ψη′ and Bs0→J/ψπ+π−Bs0→J/ψπ+π− are studied. The decay-width difference between the light and heavy mass eigenstates of the Bs0Bs0 meson is measured to be ∆Γss = 0.087 ± 0.012 ± 0.009 ps−1−1, where the first uncertainty is statistical and the second systematic.

Original language	English
Article number	253
Pages (from-to)	1-20
Number of pages	20
Journal	Journal of High Energy Physics
Volume	2024
Issue number	5
DOIs	https://doi.org/10.1007/JHEP05(2024)253
Publication status	Published - 22 May 2024

Keywords / Materials (for Non-textual outputs)

B Physics
CP Violation
Flavour Physics
Hadron-Hadron Scattering

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10.1007/JHEP05(2024)253Licence: Creative Commons: Attribution (CC-BY)

3 Active
4 Finished

Experimental Particle Physics at the University of Edinburgh
Leonidopoulos, C. (Principal Investigator)
Science and Technology Facilities Council
1/04/23 → 31/03/26
Project: Research
Experimental Particle Physics at the University of Edinburgh
Leonidopoulos, C. (Principal Investigator)
Science and Technology Facilities Council
1/10/22 → 31/03/26
Project: Research
Beautiful Flavours: Discovering New Physics with B-hadrons and Tau-leptons
Barter, W. (Principal Investigator)
UKRI (formerly RCUK)
1/07/22 → 30/06/27
Project: Research

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The LHCb Collaboration, Barter, W., Betti, F., Bohare, A., Clarke, P. E. L., Currie, R., Eisenhardt, S., Farmer, K., Gambetta, S., Liu, Y., Mitchell, S. E., Muheim, F., Needham, M., Oliva, F., O'Neil, R. H., Ozcelik, O., Petrucci, S., Richardson-Slipper, M., Sarpis, G., ... Williams, M. R. J. (2024). A measurement of ∆Γs. Journal of High Energy Physics, 2024(5), 1-20. Article 253. https://doi.org/10.1007/JHEP05(2024)253

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title = "A measurement of ∆Γs",

abstract = "Using a dataset corresponding to 9 fb−1−1 of integrated luminosity collected with the LHCb detector between 2011 and 2018 in proton-proton collisions, the decay-time distributions of the decay modes Bs0→J/ψη′Bs0→J/ψη′ and Bs0→J/ψπ+π−Bs0→J/ψπ+π− are studied. The decay-width difference between the light and heavy mass eigenstates of the Bs0Bs0 meson is measured to be ∆Γss = 0.087 ± 0.012 ± 0.009 ps−1−1, where the first uncertainty is statistical and the second systematic.",

keywords = "B Physics, CP Violation, Flavour Physics, Hadron-Hadron Scattering",

author = "\{The LHCb Collaboration\} and W. Barter and F. Betti and A. Bohare and Clarke, \{P. E. L.\} and R. Currie and S. Eisenhardt and K. Farmer and S. Gambetta and Y. Liu and S.E. Mitchell and F. Muheim and M. Needham and F. Oliva and R.H. O'Neil and O. Ozcelik and S. Petrucci and M. Richardson-Slipper and G. Sarpis and Lavra, \{L. Soares\} and C. Vrahas and Williams, \{M. R. J.\}",

year = "2024",

month = may,

day = "22",

doi = "10.1007/JHEP05(2024)253",

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journal = "Journal of High Energy Physics",

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The LHCb Collaboration, Barter, W , Betti, F, Bohare, A, Clarke, PEL , Currie, R , Eisenhardt, S, Farmer, K, Gambetta, S, Liu, Y, Mitchell, SE, Muheim, F , Needham, M , Oliva, F, O'Neil, RH, Ozcelik, O, Petrucci, S, Richardson-Slipper, M, Sarpis, G, Lavra, LS, Vrahas, C & Williams, MRJ 2024, 'A measurement of ∆Γs', Journal of High Energy Physics, vol. 2024, no. 5, 253, pp. 1-20. https://doi.org/10.1007/JHEP05(2024)253

TY - JOUR

T1 - A measurement of ∆Γs

AU - The LHCb Collaboration

AU - Barter, W.

AU - Betti, F.

AU - Bohare, A.

AU - Clarke, P. E. L.

AU - Currie, R.

AU - Eisenhardt, S.

AU - Farmer, K.

AU - Gambetta, S.

AU - Liu, Y.

AU - Mitchell, S.E.

AU - Muheim, F.

AU - Needham, M.

AU - Oliva, F.

AU - O'Neil, R.H.

AU - Ozcelik, O.

AU - Petrucci, S.

AU - Richardson-Slipper, M.

AU - Sarpis, G.

AU - Lavra, L. Soares

AU - Vrahas, C.

AU - Williams, M. R. J.

PY - 2024/5/22

Y1 - 2024/5/22

N2 - Using a dataset corresponding to 9 fb−1−1 of integrated luminosity collected with the LHCb detector between 2011 and 2018 in proton-proton collisions, the decay-time distributions of the decay modes Bs0→J/ψη′Bs0→J/ψη′ and Bs0→J/ψπ+π−Bs0→J/ψπ+π− are studied. The decay-width difference between the light and heavy mass eigenstates of the Bs0Bs0 meson is measured to be ∆Γss = 0.087 ± 0.012 ± 0.009 ps−1−1, where the first uncertainty is statistical and the second systematic.

AB - Using a dataset corresponding to 9 fb−1−1 of integrated luminosity collected with the LHCb detector between 2011 and 2018 in proton-proton collisions, the decay-time distributions of the decay modes Bs0→J/ψη′Bs0→J/ψη′ and Bs0→J/ψπ+π−Bs0→J/ψπ+π− are studied. The decay-width difference between the light and heavy mass eigenstates of the Bs0Bs0 meson is measured to be ∆Γss = 0.087 ± 0.012 ± 0.009 ps−1−1, where the first uncertainty is statistical and the second systematic.

KW - B Physics

KW - CP Violation

KW - Flavour Physics

KW - Hadron-Hadron Scattering

U2 - 10.1007/JHEP05(2024)253

DO - 10.1007/JHEP05(2024)253

M3 - Article

SN - 1126-6708

VL - 2024

SP - 1

EP - 20

JO - Journal of High Energy Physics

JF - Journal of High Energy Physics

IS - 5

M1 - 253

ER -

A measurement of ∆Γs

Abstract

Keywords / Materials (for Non-textual outputs)

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Projects

Experimental Particle Physics at the University of Edinburgh

Experimental Particle Physics at the University of Edinburgh

Beautiful Flavours: Discovering New Physics with B-hadrons and Tau-leptons

Cite this