Flavor physics beyond the standard model

<p>We examine possible New Physics impact on certain heavy quark flavor involving processes, such as charm and bottom strange meson-antimeson</p> <p>oscillations and leptonic meson decays. Also, we consider a possibility of</p> <p>explaining within a two-Higgs doublet extension of the Standard Model the quark and charged lepton mass hierarchy. We show that the experimental value of the lifetime difference in D⊃0⊃-anti-D⊃0⊃ mixing may be due to destructive interference of the Standard Model and New Physics contributions. We examine next possible correlations between the New Physics contribution to B⊂s⊂ mixing mass difference and B⊂s⊂ ⊃+⊃-⊃ leptonic decay .We show that these correlations tend to rule out possible large New Physics contribution to B⊂s⊂ μ⊃+⊃-⊃ . We propose also to explain within a general two-Higgs doublet extension of the Standard Model the quark and lepton mass hierarchy by imposing some basis invariant conditions on the quark and lepton Yukawa matrices with no or little hierarchy in Yukawa couplings.</p>

Name thesis:degree_name

Ph.D.

Level thesis:degree_level

Open Access Dissertation

Discipline thesis:degree_discipline

Physics and Astronomy

Year dc:date.available

2011

Author dc:creator

• Yeghiyan, Gagik

Contributors dc:contributor

• Alexey A. Petrov

• Theoretical Particle Physics
• Physics

Repository record dc:identifier

https://digitalcommons.wayne.edu/oa_dissertations/340

OAI identifier oai:identifier

oai:digitalcommons.wayne.edu:oa_dissertations-1339