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2024

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cc-by (c) Aaij, R. et al., 2024
Please use this identifier to cite or link to this item: https://hdl.handle.net/2445/221861

A measurement of ∆Γs

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https://doi.org/10.1007/JHEP05(2024)253

Abstract

Using a dataset corresponding to 9 fb−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 B0 s → J/ψη′ and B0 s → J/ψπ+π − are studied. The decay-width diference between the light and heavy mass eigenstates of the B0 s meson is measured to be ∆Γs = 0.087 ± 0.012 ± 0.009 ps−1 , where the frst uncertainty is statistical and the second systematic. 

Subject

Física de partícules, Model estàndard (Física nuclear), Hadrons

Subject (English)

Particle physics, Standard model (Nuclear physics), Hadrons

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Articles publicats en revistes (Física Quàntica i Astrofísica)

Citation

COMERMA MONTELLS, Albert, et al. A measurement of ∆Γs. Journal of High Energy Physics. 2024. Vol. 2024, num. 253. ISSN 1126-6708. [consulted: 16 of August of 2026]. Available at: https://hdl.handle.net/2445/221861

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