We study a set of exclusive $B$ and $B_s$ decay modes induced by the rare $b \to s \nu \bar \nu$ ... more We study a set of exclusive $B$ and $B_s$ decay modes induced by the rare $b \to s \nu \bar \nu$ transition in the RS$_c$ model, an extra-dimensional extension of the standard model with warped 5D metric and extended gauge group. We emphasize the role of correlations among the observables, and their importance for detecting the predicted small deviations from the standard model expectations.
ABSTRACT We study a set of exclusive \(B\) and \(B_s\) decay modes induced by the rare \(b \right... more ABSTRACT We study a set of exclusive \(B\) and \(B_s\) decay modes induced by the rare \(b \rightarrow s \nu \bar{\nu }\) transition in the RS \(_c\) model, an extra-dimensional extension of the standard model with warped 5D metric and extended gauge group. We discuss the role of correlations among the observables, and their importance for detecting the predicted small deviations from the standard model expectations.
We study the radiative $B \to K \eta^{(\prime)} \gamma$ decays, which are important to investigat... more We study the radiative $B \to K \eta^{(\prime)} \gamma$ decays, which are important to investigate CP violation, and are also relevant to assess the role of the exclusive modes induced by the $b \to s \gamma$ transition to saturate the inclusive $B \to X_s \gamma$ decay rate. Moreover, these channels do not display the same hierarchy as $B \to K \eta^{(\prime)}$ modes, for which the decay into $\eta^\prime$ is enhanced with respect to one into $\eta$. The three-body radiative decays reverse the role: we find that this experimentally observed behavior (although affected by a large uncertainty in the case of the $\eta^\prime$) is reproduced in the theoretical analysis. We compute a $B^* \to K$ form factor, needed for this study, using light cone QCD sum rules, and discuss a relation expected to hold in the large energy limit for the light meson. Finally, we examine $B\to K \eta \gamma$ in two extensions of the standard model with universal extra dimensions, to investigate the sensitivity of this rare mode to such a kind of new physics effects.
We study a set of exclusive $B$ and $B_s$ decay modes induced by the rare $b \to s \nu \bar \nu$ ... more We study a set of exclusive $B$ and $B_s$ decay modes induced by the rare $b \to s \nu \bar \nu$ transition in the RS$_c$ model, an extra-dimensional extension of the standard model with warped 5D metric and extended gauge group. We emphasize the role of correlations among the observables, and their importance for detecting the predicted small deviations from the standard model expectations.
ABSTRACT We study a set of exclusive \(B\) and \(B_s\) decay modes induced by the rare \(b \right... more ABSTRACT We study a set of exclusive \(B\) and \(B_s\) decay modes induced by the rare \(b \rightarrow s \nu \bar{\nu }\) transition in the RS \(_c\) model, an extra-dimensional extension of the standard model with warped 5D metric and extended gauge group. We discuss the role of correlations among the observables, and their importance for detecting the predicted small deviations from the standard model expectations.
We study the radiative $B \to K \eta^{(\prime)} \gamma$ decays, which are important to investigat... more We study the radiative $B \to K \eta^{(\prime)} \gamma$ decays, which are important to investigate CP violation, and are also relevant to assess the role of the exclusive modes induced by the $b \to s \gamma$ transition to saturate the inclusive $B \to X_s \gamma$ decay rate. Moreover, these channels do not display the same hierarchy as $B \to K \eta^{(\prime)}$ modes, for which the decay into $\eta^\prime$ is enhanced with respect to one into $\eta$. The three-body radiative decays reverse the role: we find that this experimentally observed behavior (although affected by a large uncertainty in the case of the $\eta^\prime$) is reproduced in the theoretical analysis. We compute a $B^* \to K$ form factor, needed for this study, using light cone QCD sum rules, and discuss a relation expected to hold in the large energy limit for the light meson. Finally, we examine $B\to K \eta \gamma$ in two extensions of the standard model with universal extra dimensions, to investigate the sensitivity of this rare mode to such a kind of new physics effects.
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