Measurement of the bottom-strange meson oscillations at LHCb
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http://hdl.handle.net/10347/30359
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Título: | Measurement of the bottom-strange meson oscillations at LHCb |
Autor/a: | Romero Lamas, Marcos |
Dirección/Titoría: | Adeva Andany, Bernardo Martinez Santos, Diego Georgieva Chobanova, Veronika |
Centro/Departamento: | Universidade de Santiago de Compostela. Escola de Doutoramento Internacional (EDIUS) Universidade de Santiago de Compostela. Programa de Doutoramento en Física Nuclear e de Partículas |
Palabras chave: | flavor | physics | particle | meson | oscillations | CP violation | bottom-strange | |
Data: | 2023 |
Resumo: | A measurement of the mixing-induced CP violation phase in the bottomstrange meson system and its oscillation parameters through the dimuon (after a charmonium decay) and dikaon decay mode is reported. The weak phase difference is precisely constrained within the Standard Model, constituting a key probe for new physics phenomena. This preliminary analysis uses 6/fb of 13 TeV proton-proton collisions at LHCb and constitutes the world's most precise measurement of the CP violation phase, the decay width, and the decay-width splitting of the bottom-strange meson. In a flavor-tagged time-dependent angular fit to about half a million signal candidates of background subtracted data, a statistical uncertainty of 22 mrad in the CP violating phase is achieved. |
Data de Embargo: | 2024-02-27 |
URI: | http://hdl.handle.net/10347/30359 |
Dereitos: | Attribution-NonCommercial-NoDerivatives 4.0 Internacional |
Coleccións
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- Área de Ciencias [957]
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