Mullier, Geoffrey; Haug, Sigve; Weber, Michael; Meloni, Federico; Cervelli, Alberto; Beck, Hans Peter; Stucci, Stefania; Ereditato, Antonio (2016). Measurement of the relative width difference of the B⁰-B⁰ system with the ATLAS detector. Journal of High Energy Physics, 2016(6) Springer 10.1007/JHEP06(2016)081
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10.1007_JHEP06(2016)081.pdf - Published Version Available under License Creative Commons: Attribution (CC-BY). Download (761kB) | Preview |
This paper presents the measurement of the relative width difference ΔΓd/Γd of the B⁰-B⁰ system using the data collected by the ATLAS experiment at the LHC in pp collisions at √s=7 TeV and √s=8 TeV and corresponding to an integrated luminosity of 25.2 fb⁻¹. The value of ΔΓd/Γd is obtained by comparing the decay-time distributions of B⁰→J/ψKS and B⁰→J/ψK*⁰(892) decays. The result is ΔΓd/Γd =(−0.1±1.1 (stat.)±0.9 (syst.))×10⁻². Currently, this is the most precise single measurement of ΔΓd/Γd. It agrees with the Standard Model prediction and the measurements by other experiments.
Item Type: |
Journal Article (Original Article) |
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Division/Institute: |
08 Faculty of Science > Physics Institute > Laboratory for High Energy Physics (LHEP) |
UniBE Contributor: |
Haug, Sigve, Weber, Michele, Beck, Hans Peter |
Subjects: |
500 Science > 530 Physics 500 Science > 510 Mathematics |
ISSN: |
1029-8479 |
Publisher: |
Springer |
Language: |
English |
Submitter: |
Annette Krebs-Wegenast |
Date Deposited: |
04 Aug 2017 10:08 |
Last Modified: |
05 Dec 2022 15:05 |
Publisher DOI: |
10.1007/JHEP06(2016)081 |
Additional Information: |
Kollaboration - Es sind nur die Berner Autoren namentlich erwähnt. |
BORIS DOI: |
10.7892/boris.99951 |
URI: |
https://boris.unibe.ch/id/eprint/99951 |
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