# Generalized analysis on $B o K^* ρ$ within and beyond the Standard Model $-$ Can it help understand the $B o K π$ puzzle - High Energy Physics - Phenomenology

Generalized analysis on $B o K^* ρ$ within and beyond the Standard Model $-$ Can it help understand the $B o K π$ puzzle - High Energy Physics - Phenomenology - Descarga este documento en PDF. Documentación en PDF para descargar gratis. Disponible también para leer online.

Abstract: We study $B \to K^* ho$ modes that are analogues of the much studied $B\toK \pi$ modes with B decaying to two vector mesons instead of pseudoscalarmesons, using topological amplitudes in the quark diagram approach. We show how$B \to K^* ho$ modes can be used to obtain many more observables than thosefor $B \to K \pi$ modes, even though the quark level subprocesses of both modesare exactly the same. All the theoretical parameters except for the weak phase$\gamma$, such as the magnitudes of the topological amplitudes and theirstrong phases, can be determined in terms of the observables without anymodel-dependent assumption. We demonstrate how $B\to K^* ho$ can also be usedto verify if there exist any relations between theoretical parameters, such asthe hierarchy relations between the topological amplitudes and possiblerelations between the strong phases. Conversely, if there exist reliabletheoretical estimates of amplitudes and strong phases, the presence of Newphysics could be probed. We show that if the tree and color-supressed tree arerelated to the electroweak penguins and color-supressed electroweak penguins,it is not only possible to verify the validity of such relations but also tohave a clean measurement of New Physics parameters. We also present a numericalstudy to examine which of the observables are more sensitive to New Physics.

Autor: C.S. Kim, Sechul Oh, Chandradew Sharma, Rahul Sinha, Yeo Woong Yoon

Fuente: https://arxiv.org/