ar X iv : h ep - p h / 02 04 35 3 v 1 3 0 A pr 2 00 2 VECTOR CONDENSATION AT LARGE CHEMICAL POTENTIAL

ar X iv : h ep - p h / 02 03 04 2 v 2 4 A pr 2 00 2 Once more on mixing of the a 0 ( 980 ) and f 0 ( 980 ) mesons

ar X iv : m at h / 04 09 02 9 v 1 [ m at h . A G ] 2 S ep 2 00 4 ACM BUNDLES ON GENERAL HYPERSURFACES IN P 5 OF LOW DEGREE

In this paper we show that on a general hypersurface of degree r = 3, 4, 5, 6 in P 5 a rank 2 vector bundle E splits if and only if h 1 E(n) = h 2 E(n) = 0 for all n ∈ Z. Similar results for r = 1, 2 were obtained in [15], [16] and [1].

ar X iv : h ep - p h / 02 04 18 1 v 1 1 6 A pr 2 00 2 ELECTROWEAK MATRIX ELEMENTS AT LARGE N C : MATCHING QUARKS TO MESONS

I review some progress made on the problem of calculating electroweak processes of mesons at low energy with the use of an approximation to large-Nc QCD which we call the Minimal Hadronic Approximation.

ar X iv : h ep - p h / 02 04 18 1 v 2 2 3 A pr 2 00 2 ELECTROWEAK MATRIX ELEMENTS AT LARGE N C : MATCHING QUARKS TO MESONS

I review some progress made on the problem of calculating electroweak processes of mesons at low energy with the use of an approximation to large-Nc QCD which we call the Minimal Hadronic Approximation. An update of results for the matrix elements of the electroweak penguin operators Q 7 and Q 8 is also given.

ar X iv : h ep - p h / 03 04 14 0 v 1 1 5 A pr 2 00 3 Vector particles in Quasilocal Quark Models

We consider the Quasilocal Quark Model of NJL type including vector and axial-vector four-fermion interaction with derivatives. The mass spectrum for the ground and first excited states is obtained. The chiral symmetry restoration sum rules in these channels are imposed as matching rules to QCD at intermediate energies and a set of constraints on parameters of QQM is performed.