02 19 7 v 1 2 1 Fe b 20 03 February 2003 PAR - LPTHE 03 / 09 CP NON - INVARIANCE FROM SCALING VIOLATIONS

ar X iv : h ep - p h / 03 02 19 5 v 1 2 1 Fe b 20 03 DFCAL - TH 03 / 3 February 2003 THE POMERON IN EXCLUSIVE VECTOR MESON PRODUCTION

An earlier developed model for vector meson photoproduction, based on a dipole Pomeron exchange, is extended to electroproduction. Universality of the non linear Pomeron trajectory is tested by fitting the model to ZEUS and H1 data as well as to CDF data on p̄p elastic scattering. PACS numbers: 12.40.Nn, 13.60.Le, 14.40.Gx. e-mail address: [email protected] e-mail address: [email protected] e-mail ad...

ar X iv : h ep - p h / 03 02 25 4 v 1 2 7 Fe b 20 03 Can the Majorana phases are restricted ?

We reanalyze the constraints in neutrino masses and MNS lepton mixing parameters using the new data from the terrestrial (KamLAND) and astrophysical (WMAP) observations together with the HEIDELBERG-MOSCOW double beta decay experiment. It leads us to the almost degenerate or inverse hierarchy neutrino mass scenario. We discuss the possibility of getting the bound for the Majorana CP violating ph...

ar X iv : a st ro - p h / 03 02 17 7 v 1 1 0 Fe b 20 03 Polarization in GRB Afterglows

ar X iv : h ep - p h / 03 02 12 9 v 1 1 7 Fe b 20 03 Scalar σ meson effects in radiative ρ 0 - meson decays

ua nt - p h / 03 02 14 1 v 1 1 9 Fe b 20 03 C , PT , CPT invariance of pseudo - Hermitian Hamiltonians Zafar

We propose construction of a unique and definite metric (η +), time-reversal operator (T) and an inner product such that the pseudo-Hermitian matrix Hamiltonians are C, PT, CPT invariant and PT(CPT)-norm is indefinite (definite). Here, P and C denote the generalized symmetries : parity and charge-conjugation respectively. The limitations of the other current approaches have been brought out.