Testing leptoquark/EFT in $${\bar{B}} \rightarrow {D^{(*)}}l{\bar{\nu }}$$ at the LHC

نویسندگان

چکیده

We investigate the current LHC bounds on New Physics (NP) that contributes to $\bar B \to D^{(*)} l\bar\nu$ for $l = (e,\mu,\tau)$ by considering both leptoquark (LQ) models and an effective-field-theory (EFT) Hamiltonian. Experimental analyses from $l+\text{missing}$ searches with high $p_T$ are applied evaluate NP constraints respect Wilson coefficients. A novel point of this work is show difference between LQs EFT applicable bound. In particular, we find description not valid search mass less than $\lesssim 10\,\text{TeV}$ at leads overestimated bounds. also discuss future prospects luminosity including charge asymmetry background signal events. Finally, a combined summary flavor given, then see in several scenarios comparable ones.

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ژورنال

عنوان ژورنال: European Physical Journal C

سال: 2021

ISSN: ['1434-6044', '1434-6052']

DOI: https://doi.org/10.1140/epjc/s10052-021-09125-5