ar X iv : h ep - p h / 06 11 36 0 v 1 2 9 N ov 2 00 6 Friedberg - Lee Symmetry Breaking and Its Prediction for θ 13

ar X iv : h ep - p h / 06 11 36 0 v 2 3 0 Ja n 20 07 Friedberg - Lee Symmetry Breaking and Its Prediction for θ 13

We consider an effective Majorana neutrino mass operator with the FriedbergLee symmetry; i.e., it is invariant under the transformation να → να + z (for α = e, μ, τ) with z being a space-time independent constant element of the Grassmann algebra. We show that this new flavor symmetry can be broken in such a nontrivial way that the lightest neutrino remains massless but an experimentally-favored...

ar X iv : h ep - t h / 06 11 21 2 v 1 2 0 N ov 2 00 6 Dynamics of Weyl Scale Invariant non - BPS p = 3 Brane

The action of Weyl scale invariant p=3 brane (domain wall) which breaks the target super Weyl scale symmetry in the N=1, 5D superspace down to the lower dimensional Weyl symmetry W (1, 3) is derived by the approach of coset method. Its dual form action for the Weyl scale invariant tensor gauge field theory is also constructed.

ar X iv : h ep - p h / 06 11 27 1 v 2 2 2 N ov 2 00 6 Structure of the axial - vector meson D s 1 ( 2460 )

ar X iv : h ep - p h / 06 11 27 1 v 1 2 1 N ov 2 00 6 Structure of the axial - vector meson D s 1 ( 2460 )

ar X iv : h ep - p h / 06 11 23 8 v 2 2 6 N ov 2 00 6 K ∗ - couplings for the antidecuplet excitation Ya

We estimate the coupling of K∗ vector meson to the N → Θ transition employing the unitary symmetry, vector meson dominance, and results of the GRAAL Collaboration on the η photoproduction off the neutron. Our small numerical value of the coupling confirms that the CLAS Collaboration null results do not contradict to theoretical expectations for the Θ-production. We also estimate the K∗coupling ...