PoS - Proceedings of Science
Volume 445 - 21st Conference on Flavor Physics and CP Violation (FPCP2023) - Parallel session A
Global fits of $b\to d\,\ell^+\ell^-$
H. Gisbert Mullor
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Pre-published on: October 18, 2023
Published on: November 14, 2023
We conduct a model-independent analysis of processes involving $|\Delta b|=|\Delta d|=1$ transitions, aiming to test the standard model and explore flavor patterns of new physics. Exploiting the current data from $B^+ \to \pi^+ \,\mu^+\mu^-$, $B^0_s\to \bar{K}^{*0}\, \mu^+\mu^-$, $B^0\to\mu^+\mu^-$, and radiative $B \to X_d \,\gamma$ decays, we derive constraints on Wilson coefficients through global fits. The fit results are consistent with the standard model but show significant potential for new physics contributions at experimental facilities like LHCb and Belle II, or a future $e^+ e^-$ collider.
DOI: https://doi.org/10.22323/1.445.0057
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