Work

Alleviating the B̄ → Dτντ and B̄ → D∗τντ puzzle in the MSSM

Year: 2019

Type: article

Abstract: We show that Supersymmetric effects driven by penguin contributions to the [Formula: see text] transition are able to account simultaneously for a sizeable increase of both branching ratios of [Formula: see text] and [Formula: see text] with respect to the Standard Model predictions, thereby approaching their experimentally measured values. We emphasize that a light chargino and neutralino, with masses less than 300 GeV, in addition to a large stau/sneutrino mass and a large [Formula: see text], are essential for enhancing the effect of the lepton penguin [Formula: see text], which is responsible for the improved theoretical predictions with respect to current data.

Source: International Journal of Modern Physics A

DOI: 10.1142/s0217751x19502099

Authors: Dris Boubaa, Shaaban Khalil, Stefano Moretti

Institutions: Zewail City of Science and Technology, Hassiba Benbouali University of Chlef, University of Southampton

Language: English

Topic: Particle physics theoretical and experimental studies

Subfield: Nuclear and High Energy Physics

Field: Physics and Astronomy

Domain: Physical Sciences

Open Access status: green

Funders: Science and Technology Development Fund, Horizon 2020 Framework Programme