Würzburg 2018 – scientific programme

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T: Fachverband Teilchenphysik

T 84: Theorie: BSM II

T 84.3: Talk

Thursday, March 22, 2018, 17:00–17:15, Z6 - SR 1.010

Phenomenology of a unified model containing leptoquarks — •Thomas Faber — Julius-Maximilians-Universität Würzburg

For various ratios of different B-meson branching fractions (R_K, R_K^*, R_D and R_D^*) deviations between measurements and theoretical predictions have been observed. It is already known that leptoquarks can explain these deviations in simple extensions of the SM, e.g. simply putting a leptoquark field to the SM lagrangian. A natural question is if these leptoquarks can emerge from consistent unified models. We investigate a model based on the group SU(4) × SU(2)_L × U(1)_R in the regions of parameter space, where the above mentioned deviations can be explained. In addition we take into account bounds from direct leptoquark searches at the LHC as well as other flavor observables e.g. µ → 3 e. Moreover we investigate the observability of the leptoquarks as well as other new particles at the LHC.