Erratum to: Precision measurement of the B0 meson lifetime using B0 → J/ ψ K*0 decays with the ATLAS detector (The European Physical Journal C, (2025), 85, 7, (736), 10.1140/epjc/s10052-025-14232-8)

ATLAS Collaboration

doi:10.1140/epjc/s10052-025-15188-5

Erratum to: Precision measurement of the B⁰ meson lifetime using B⁰ → J/ ψ K^*0 decays with the ATLAS detector (The European Physical Journal C, (2025), 85, 7, (736), 10.1140/epjc/s10052-025-14232-8)

ATLAS Collaboration

iThemba Laboratory for Accelerator Based Sciences
Department of Physics
University of South Africa
University of Zululand
Cadi Ayyad University
Departamento de Física Teórica y del Cosmos
University of Granada
CERN
Columbia University
Demokritos National Centre for Scientific Research
University of Sheffield
Harvard University
University of Bologna
National Institute for Nuclear Physics
University of Belgrade
University of Siegen
Heidelberg University
Indiana University Bloomington
CAS - Institute of High Energy Physics
University of Science and Technology of China
Shanghai Jiao Tong University
University of Michigan, Ann Arbor
Shandong University
University of Arizona
Nanjing University
Tsinghua University
University of Illinois at Urbana-Champaign
SLAC National Accelerator Laboratory
University of California at Santa Cruz
University of Washington
Université Paris-Saclay
Lawrence Berkeley National Laboratory
University College London
The University of Tokyo

Research output: Contribution to journal › Comment/debate

Abstract

When deriving the B0 meson decay width Γd from the measured effective lifetime τB0 formula (1) for the decay of the B0 and B¯0 mesons to the same final state has been used, which included a nonzero asymmetry parameter A. However, since the two mesons decay to flavour specific final states the value of A in this case is zero [1], thus the original formula (1) simplifies to: (Formula presented.) The Γd value published in the original paper (Abstract, Chap. 7 Results, Chap. 8 Conclusions) was Γd=0.6639±0.0005(stat.)±0.0016(syst.)±0.0038(ext.)ps-1. The correct value is Γd=0.6643±0.0005(stat.)±0.0016(syst.)ps-1. In the original paper the external systematic uncertainty was dominated by the uncertainty of the asymmetry parameter A. Since this parameter is not contained in the simplified formula (1’) the uncertainty from external sources, denoted “(ext.)”, now only stems from the parameter y. It no longer shows up in the result, because it is reduced to a negligible level. Furthermore, Γd is used to derive a value for the ratio of decay widths Γd/Γs. The originally published number was Γd/Γs=0.9905±0.0022(stat.)±0.0036(syst.)±0.0057(ext.), while the correct result is Γd/Γs=0.9910±0.0022(stat.)±0.0036(syst.). Due to the smaller total uncertainty of this ratio the new number for the compatibility of the ATLAS result for Γd/Γs with the HQE theory prediction is 1.6σ (was 1.3σ), and the compatibility with the experimental average is 1.7σ (was 1.3σ). All other significances remain as in the original paper.

Original language	English
Article number	26
Journal	European Physical Journal C
Volume	86
Issue number	1
DOIs	https://doi.org/10.1140/epjc/s10052-025-15188-5
State	Published - Jan 2026

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@article{c0418f0ab0e84e779c7b1e01ff86a74b,

title = "Erratum to: Precision measurement of the B0 meson lifetime using B0 → J/ ψ K*0 decays with the ATLAS detector (The European Physical Journal C, (2025), 85, 7, (736), 10.1140/epjc/s10052-025-14232-8)",

abstract = "When deriving the B0 meson decay width Γd from the measured effective lifetime τB0 formula (1) for the decay of the B0 and B¯0 mesons to the same final state has been used, which included a nonzero asymmetry parameter A. However, since the two mesons decay to flavour specific final states the value of A in this case is zero [1], thus the original formula (1) simplifies to: (Formula presented.) The Γd value published in the original paper (Abstract, Chap. 7 Results, Chap. 8 Conclusions) was Γd=0.6639±0.0005(stat.)±0.0016(syst.)±0.0038(ext.)ps-1. The correct value is Γd=0.6643±0.0005(stat.)±0.0016(syst.)ps-1. In the original paper the external systematic uncertainty was dominated by the uncertainty of the asymmetry parameter A. Since this parameter is not contained in the simplified formula (1{\textquoteright}) the uncertainty from external sources, denoted “(ext.)”, now only stems from the parameter y. It no longer shows up in the result, because it is reduced to a negligible level. Furthermore, Γd is used to derive a value for the ratio of decay widths Γd/Γs. The originally published number was Γd/Γs=0.9905±0.0022(stat.)±0.0036(syst.)±0.0057(ext.), while the correct result is Γd/Γs=0.9910±0.0022(stat.)±0.0036(syst.). Due to the smaller total uncertainty of this ratio the new number for the compatibility of the ATLAS result for Γd/Γs with the HQE theory prediction is 1.6σ (was 1.3σ), and the compatibility with the experimental average is 1.7σ (was 1.3σ). All other significances remain as in the original paper.",

author = "ATLAS Collaboration and L. Zwalinski and W. Zou and O. Zormpa and Zorbas, \{T. G.\} and K. Zoch and A. Zoccoli and L. {\v Z}ivkovi{\'c} and M. Ziolkowski and J. Zinsser and Zimine, \{N. I.\} and K. Zhukov and X. Zhuang and Y. Zhu and Y. Zhu and X. Zhu and J. Zhu and Zhu, \{C. G.\} and Y. Zhou and Y. Zhou and Y. Zhou and N. Zhou and H. Zhou and B. Zhou and D. Zhong and Z. Zheng and X. Zheng and K. Zheng and J. Zheng and A. Zhemchugov and Z. Zhao and Z. Zhao and Y. Zhao and T. Zhao and H. Zhao and Z. Zhang and Z. Zhang and Z. Zhang and Y. Zhang and Y. Zhang and Y. Zhang and X. Zhang and X. Zhang and T. Zhang and D. Tsybychev and G. Piacquadio and J. Jia and J. Hobbs and V. Dao and \{Da Via\}, C. and H. Arnold",

note = "Publisher Copyright: {\textcopyright} CERN for the benefit of the ATLAS Collaboration 2026.",

year = "2026",

month = jan,

doi = "10.1140/epjc/s10052-025-15188-5",

language = "English",

volume = "86",

journal = "European Physical Journal C",

issn = "1434-6044",

number = "1",

}

TY - JOUR

T1 - Erratum to

T2 - Precision measurement of the B0 meson lifetime using B0 → J/ ψ K*0 decays with the ATLAS detector (The European Physical Journal C, (2025), 85, 7, (736), 10.1140/epjc/s10052-025-14232-8)

AU - ATLAS Collaboration

AU - Zwalinski, L.

AU - Zou, W.

AU - Zormpa, O.

AU - Zorbas, T. G.

AU - Zoch, K.

AU - Zoccoli, A.

AU - Živković, L.

AU - Ziolkowski, M.

AU - Zinsser, J.

AU - Zimine, N. I.

AU - Zhukov, K.

AU - Zhuang, X.

AU - Zhu, Y.

AU - Zhu, X.

AU - Zhu, J.

AU - Zhu, C. G.

AU - Zhou, Y.

AU - Zhou, N.

AU - Zhou, H.

AU - Zhou, B.

AU - Zhong, D.

AU - Zheng, Z.

AU - Zheng, X.

AU - Zheng, K.

AU - Zheng, J.

AU - Zhemchugov, A.

AU - Zhao, Z.

AU - Zhao, Y.

AU - Zhao, T.

AU - Zhao, H.

AU - Zhang, Z.

AU - Zhang, Y.

AU - Zhang, X.

AU - Zhang, T.

AU - Tsybychev, D.

AU - Piacquadio, G.

AU - Jia, J.

AU - Hobbs, J.

AU - Dao, V.

AU - Da Via, C.

AU - Arnold, H.

PY - 2026/1

Y1 - 2026/1

N2 - When deriving the B0 meson decay width Γd from the measured effective lifetime τB0 formula (1) for the decay of the B0 and B¯0 mesons to the same final state has been used, which included a nonzero asymmetry parameter A. However, since the two mesons decay to flavour specific final states the value of A in this case is zero [1], thus the original formula (1) simplifies to: (Formula presented.) The Γd value published in the original paper (Abstract, Chap. 7 Results, Chap. 8 Conclusions) was Γd=0.6639±0.0005(stat.)±0.0016(syst.)±0.0038(ext.)ps-1. The correct value is Γd=0.6643±0.0005(stat.)±0.0016(syst.)ps-1. In the original paper the external systematic uncertainty was dominated by the uncertainty of the asymmetry parameter A. Since this parameter is not contained in the simplified formula (1’) the uncertainty from external sources, denoted “(ext.)”, now only stems from the parameter y. It no longer shows up in the result, because it is reduced to a negligible level. Furthermore, Γd is used to derive a value for the ratio of decay widths Γd/Γs. The originally published number was Γd/Γs=0.9905±0.0022(stat.)±0.0036(syst.)±0.0057(ext.), while the correct result is Γd/Γs=0.9910±0.0022(stat.)±0.0036(syst.). Due to the smaller total uncertainty of this ratio the new number for the compatibility of the ATLAS result for Γd/Γs with the HQE theory prediction is 1.6σ (was 1.3σ), and the compatibility with the experimental average is 1.7σ (was 1.3σ). All other significances remain as in the original paper.

AB - When deriving the B0 meson decay width Γd from the measured effective lifetime τB0 formula (1) for the decay of the B0 and B¯0 mesons to the same final state has been used, which included a nonzero asymmetry parameter A. However, since the two mesons decay to flavour specific final states the value of A in this case is zero [1], thus the original formula (1) simplifies to: (Formula presented.) The Γd value published in the original paper (Abstract, Chap. 7 Results, Chap. 8 Conclusions) was Γd=0.6639±0.0005(stat.)±0.0016(syst.)±0.0038(ext.)ps-1. The correct value is Γd=0.6643±0.0005(stat.)±0.0016(syst.)ps-1. In the original paper the external systematic uncertainty was dominated by the uncertainty of the asymmetry parameter A. Since this parameter is not contained in the simplified formula (1’) the uncertainty from external sources, denoted “(ext.)”, now only stems from the parameter y. It no longer shows up in the result, because it is reduced to a negligible level. Furthermore, Γd is used to derive a value for the ratio of decay widths Γd/Γs. The originally published number was Γd/Γs=0.9905±0.0022(stat.)±0.0036(syst.)±0.0057(ext.), while the correct result is Γd/Γs=0.9910±0.0022(stat.)±0.0036(syst.). Due to the smaller total uncertainty of this ratio the new number for the compatibility of the ATLAS result for Γd/Γs with the HQE theory prediction is 1.6σ (was 1.3σ), and the compatibility with the experimental average is 1.7σ (was 1.3σ). All other significances remain as in the original paper.

UR - https://www.scopus.com/pages/publications/105031189018

U2 - 10.1140/epjc/s10052-025-15188-5

DO - 10.1140/epjc/s10052-025-15188-5

M3 - Comment/debate

AN - SCOPUS:105031189018

SN - 1434-6044

VL - 86

JO - European Physical Journal C

JF - European Physical Journal C

IS - 1

M1 - 26

ER -

Erratum to: Precision measurement of the B⁰ meson lifetime using B⁰ → J/ ψ K^*0 decays with the ATLAS detector (The European Physical Journal C, (2025), 85, 7, (736), 10.1140/epjc/s10052-025-14232-8)

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