What can we really learn from positron flux 'anomalies'? (2009)
Katz, Boaz, Blum, Kfir, Waxman, Eli
We present a critical analysis of the observational constraints on, and of the theoretical modeling of, aspects of cosmic ray (CR) generation and propagation in the Galaxy, which are relevant for the...
BMSSM Implications for Cosmology (2009)
Bernal, Nicolas, Blum, Kfir, Losada, Marta, Nir, Yosef
The addition of non-renormalizable terms involving the Higgs fields to the MSSM (BMSSM) ameliorates the little hierarchy problem of the MSSM. We analyze in detail the two main cosmological issues...
Vacuum (Meta)Stability Beyond the MSSM (2009)
Blum, Kfir, Delaunay, Cédric, Hochberg, Yonit
We study the stability of the Higgs potential in the framework of the effective Lagrangian beyond the MSSM. While the leading nonrenormalizable operators can shift the Higgs boson mass above the...
Blum, Kfir, Grossman, Yuval, Nir, Yosef, Perez, Gilad
New physics at high energy scale often contributes to K-\bar K and D-\bar D mixings in an approximately SU(2)_L invariant way. In such a case, the combination of measurements in these two systems is...
Beyond MSSM Baryogenesis (2008)
Taking the MSSM as an effective low-energy theory, with a cut-off scale of a few TeV, can make significant modifications to the predictions concerning the Higgs and stop sectors. We investigate the...
Probing CP violation in neutrino oscillations with neutrino telescopes (2007)
Blum, Kfir, Nir, Yosef, Waxman, Eli
Measurements of flavor ratios of astrophysical neutrino fluxes are sensitive to the two yet unknown mixing parameters $\theta_{13}$ and $\delta$ through the combination $\sin\theta_{13}\cos\delta$....