20-24 May 2013
Bonn
Europe/Berlin timezone
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Parallel Session on Flavor Physics

Place

Location: Bonn
Address: Physikalisches Institut Nussallee 12 53115 Bonn
Date: 21 May 14:00 - 6:00 PM

Conveners

    • Mr. Masiero, Antonio
    • Mr. Masiero, Antonio

Timetable | Contribution List

Displaying 9 contributions out of 9
We discuss the advantages of combining the experimental bound on Br(B_s -> mu+ mu-) and the measured Br(B -> K l+l-) to get the model independent constraints on physics beyond the Standard Model. Since the two decays give complementary information, one can study not only the absolute values of the Wilson coefficients that are zero in the Standard Model, but also their phases. We study benchmark ph ... More
Presented by Nejc KOSNIK on 21/5/2013 at 12:30
It is known that heavy sterile neutrinos (HSN) of order 100 MeV can serve as an agent of the baryon asymmetry and successful supernova explosions. We explore the feasibility of detecting such HSN by the existing facilities of neutrino experiments. Taking the T2K experiment as a typical example, we find that the HSN are copiously produced at the secondary beam line and their decays taking place ins ... More
Presented by Atsushi WATANABE on 21/5/2013 at 13:00
The recent discovery of a non-zero value of the mixing angle theta_13 has ruled out tri-bimaximal mixing as the correct lepton mixing pattern generated by some discrete flavor symmetry (barring large next-to-leading order corrections in concrete models). In this work we assume that neutrinos are Majorana particles and perform a general scan of all finite discrete groups with order less than 1536 t ... More
Presented by Kher Sham LIM on 21/5/2013 at 14:40
We discuss extensions of the Standard Model with two Higgs doublets, where there are flavour changing neutral currents both in the quark and leptonic sectors, with their strength controlled by the fermion mixing matrices $V_{CKM}$ and $V_{PMNS}$. These models are an extension to the leptonic sector of the class of models previously considered by Branco, Grimus and Lavoura, for the quark sector. Th ... More
Presented by Margarida Nesbitt REBELO on 21/5/2013 at 12:00
The talk will be based on the paper arXiv:1209.2679, in which is computed the μ → e conversion in the type-I seesaw model, as a function of the right-handed neutrino mixings and masses. The definite predictions will be presented and discussed. In particular, the ratios between the μ → e conversion rate for a given nucleus and the rate of two other processes which also involve a μ − e flav ... More
Presented by Mikael DHEN on 21/5/2013 at 15:00
Recently the last of the neutrino mixing angle $\theta_{13}$ has been measured giving a non zero value. Using discrete symmetries to successfully explain lepton mixing is still possible. As an example, we have modified the so called Babu-Ma-Valle model in such a way that we account for the current neutrino mixing values at 3 $\sigma$.
Presented by David VANEGAS FORERO on 21/5/2013 at 14:00
It has been pointed out that supersymmetric extensions of the Standard Model can induce significant changes to the theoretical prediction of the ratio Γ(K→eν)/Γ(K→μν)=RK, through lepton flavor violating couplings. We shall discuss these new contributions to RK arising in the context of different constrained supersymmetric models which succeed in accounting for neutrino data, further consi ... More
Presented by Renato FONSECA on 21/5/2013 at 15:20
What are the conditions, a minimal phenomenologically viable supersymmetric grand unified theory should fulfill? Here, we address the possibility of unification of eigenvalues of down-quark and lepton Yukawa matrices in the framework of renormalizable MSSM. Results will be presented together with a discussion of current values of relevant low-energy observables. This will present an update to prev ... More
Presented by Mateusz ISKRZYŃSKI on 21/5/2013 at 15:40
The ultraviolet completion of flavour models can strongly improve the predictivity of the respective effective models. We consider A4 models, existing minimal UV completions and construct several next-to-minimal UV complete models. We compare the results of these possibilities to the experimental data including theta13. Through the predictive power of the UV completions, we are able to either rule ... More
Presented by Ivo DE MEDEIROS VARZIELAS on 21/5/2013 at 14:20
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