We re-consider recent measures of 𝑅𝐾 and 𝑅𝐾∗ , now compatible with the Standard Model expectations, as well as the results for the process BR(𝐵𝑠→𝜇+𝜇−)alongside earlier determinations of 𝑅𝐷(∗) and BR(𝐵𝑐→𝜏𝜈). We provide analytic constraints on the associated Wilson coefficients in both the 𝑏 →𝑠and the 𝑏 →𝑐sectors. These allow us to estimate the scale of potential New Physics for generic extensions of the Standard Model. We then use the results to constrain the leptoquark landscape.
New physics pathways from B processes
Natascia Vignaroli
2024-01-01
Abstract
We re-consider recent measures of 𝑅𝐾 and 𝑅𝐾∗ , now compatible with the Standard Model expectations, as well as the results for the process BR(𝐵𝑠→𝜇+𝜇−)alongside earlier determinations of 𝑅𝐷(∗) and BR(𝐵𝑐→𝜏𝜈). We provide analytic constraints on the associated Wilson coefficients in both the 𝑏 →𝑠and the 𝑏 →𝑐sectors. These allow us to estimate the scale of potential New Physics for generic extensions of the Standard Model. We then use the results to constrain the leptoquark landscape.File in questo prodotto:
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