1,721,062 research outputs found
LFV and EDMs in SUSY with flavour symmetries
Full text linkAfter more than four decades of impressive and frustrating theoretical and experimental efforts to reveal signals of the presence of TeV new physics through its effects in CP-conserving and CP-violating flavour-changing neutralcurrent
processes, the main response seems to lie in an effective flavour blindness of the new physics at the electroweak scale (Minimal Flavour Violation). This perspective keeps still open the door for main surprises in the sector of lepton flavor violation. In this talk I focus on an alternative road where both the flavour puzzle within the Standard Model (i.e., a rationale for the smallness of Yukawa couplings and fermion mixings) and the flavour problem of TeV new physics are simultaneously tackled in a supersymmetric extension of the Standard Model where the flavour structure is dictated by a (spontaneously broken) flavour or horizontal symmetry
Probing supersymmetric grand unification through flavor physics
No full textFlavor Changing Neutral Current (FCNC) and CP violating processes are a powerful tool to probe the Standard Model (SM) and, hence, to constrain or obtain indirect hints of New Physics (NP) beyond it. Within Supersymmetric Grand Unified theories it is generally possible to link processes occurring in the leptonic and hadronic sectors; thus, their correlated analysis provides a very interesting low energy test for a Grand Unified theory at high energies. Similarly to the FCNC decays, we also show that the Lepton Flavor Universality tests in low-energy systems (Kl 2 and πl 2) offer a unique opportunity in shedding light on physics beyond the Standard Model; the smallness of NP effects is more than compensated, in terms of NP sensitivity, by the excellent experimental resolution and the good theoretical control. © 2007
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