Zobrazeno 1 - 10
of 1 302
pro vyhledávání: '"BERTOLINI S"'
Autor:
Horigan, V., De Nardi, M., Simons, R.R.L., Bertolini, S., Crescio, M.I., Estrada-Peña, A., Léger, A., Maurella, C., Ru, G., Schuppers, M., Stärk, K.D.C., Adkin, A.
Publikováno v:
In Preventive Veterinary Medicine 1 May 2018 153:47-55
Publikováno v:
Phys.Rev. D69 (2004) 036002
We present a complete analysis of the fermion masses and mixing matrices in the framework of the little flavon model. In this model textures are generated by coupling the fermions to scalar fields, the little flavons, that are pseudo-Goldstone bosons
Externí odkaz:
http://arxiv.org/abs/hep-ph/0309182
Publikováno v:
Phys.Rev. D68 (2003) 096007
Fermion masses and mixing matrices can be described in terms of spontaneously broken (global or gauge) flavor symmetries. We propose a little-Higgs inspired scenario in which an SU(2)xU(1) gauge flavor symmetry is spontaneously (and completely) broke
Externí odkaz:
http://arxiv.org/abs/hep-ph/0306184
Autor:
Bertolini, S.
I discuss the comparison of the current theoretical calculations of epsilon'/epsilon with the experimental data. Lacking reliable ``first principle'' calculations, phenomenological approaches may help in understanding correlations among different con
Externí odkaz:
http://arxiv.org/abs/hep-ph/9908268
Publikováno v:
Rev.Mod.Phys.72:65-93,2000
The real part of epsilon'/epsilon measures direct CP violation in the decays of the neutral kaons in two pions. It is a fundamental quantity which has justly attracted a great deal of theoretical as well as experimental work. Its determination may an
Externí odkaz:
http://arxiv.org/abs/hep-ph/9802405
Autor:
Bertolini, S., Matias, J.
Publikováno v:
Phys.Rev. D57 (1998) 4197-4204
We study the effect of supersymmetric contributions to the effective quark transition $b\to s\gamma\gamma$, including leading order QCD effects. We apply the discussion to the decay $B_s\to\gamma\gamma$. Even though one-particle irreducible contribut
Externí odkaz:
http://arxiv.org/abs/hep-ph/9709330
Publikováno v:
Nucl.Phys. B514 (1998) 93-112
After updating the determination of the combination of Kobayashi-Maskawa elements $ \Im V_{td}V^*_{ts}$ according to our new estimate of the parameter $\hat B_K$, we study the CP-violating ratio $\epsilon'/\epsilon$ by means of hadronic matrix elemen
Externí odkaz:
http://arxiv.org/abs/hep-ph/9706260
Publikováno v:
Nucl.Phys. B514 (1998) 63-92
We calculate the hadronic matrix elements to $O(p^4)$ in the chiral expansion for the ($\Delta S =1$) $K^0 \to 2 \pi$ decays and the ($\Delta S=2$) $\bar K^0$-$K^0$ oscillation. This is done within the framework of the chiral quark model. The chiral
Externí odkaz:
http://arxiv.org/abs/hep-ph/9705244
The Physics of $K^0 -\bar K^0$ Mixing: $\widehat{B}_K$ and $\Delta M_{LS}$ in the Chiral Quark Model
Publikováno v:
Nucl.Phys.B493:281-304,1997
We compute the $\widehat B_K$ parameter and the mass difference $\Delta M_{LS}$ of the $K^0-\bar K^0$ system by means of the chiral quark model. The chiral coefficients of the relevant $\Delta S=2$ and $\Delta S=1$ chiral lagrangians are computed via
Externí odkaz:
http://arxiv.org/abs/hep-ph/9610230
Autor:
Bertolini, S.
We discuss a new estimate of $\varepsilon '/\varepsilon$ in the kaon system. The present approach is based on the evaluation of the hadronic matrix elements of the \mbox{$\Delta S =1$} effective quark lagrangian by means of the chiral quark model, wi
Externí odkaz:
http://arxiv.org/abs/hep-ph/9607312