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Search of new physics through flavor physics observables

Abstract : Indirect searches of physics beyond the Standard Model through flavor physics processes at low energies are complementary to the ongoing efforts at the LHC to observe the New Physic phenomena directly. In this thesis we discuss several scenarios of physics beyond the Standard Model by (a) reusing the effective field theory approach and (b) by considering explicit extensions of the Standard Model, namely the two-Higgs doublet models and the scenarios involving the low energy scalar leptoquark states. Particular emphasis is devoted to the issue of the lepton flavor universality violation in the exclusive decays based on b → sℓℓ and b → cτν, and to the possibility of searching for signs of lepton flavor violation through similar decay modes. A proposal for testing the presence of the light CP-odd Higgs through quarkonia decays is also made.
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Submitted on : Wednesday, March 21, 2018 - 1:01:52 AM
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  • HAL Id : tel-01739406, version 1

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Olcyr Sumensari. Search of new physics through flavor physics observables. High Energy Physics - Phenomenology [hep-ph]. Université Paris Saclay (COmUE), 2017. English. ⟨NNT : 2017SACLS315⟩. ⟨tel-01739406⟩

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