Can We Reach the Scale of New Physics Behind the $B$ Anomalies?

Abstract

Indirect signs of new physics beyond the Standard Model may be appearing in $B\to K^{(\ast )}\hat{I}{¼}^{+}\hat{I}{¼}^{-}$ decays. If confirmed, the title question will be of paramount importance in determining the strategy for future colliders. We answer it by estimating the sensitivity to minimal, anomaly-compatible $Z^{\prime }$ and leptoquark models at the high luminosity LHC, 27 TeV HE-LHC, and 100 TeV FCC-hh; this conservative analysis outlines an upper bound on the available parameter space and the conditions for a reasonable guarantee of direct discovery.

4 pages, 4 figures. Contribution to the proceedings of the 53rd Rencontres de Moriond