ar X iv : h ep - p h / 02 06 21 7 v 5 2 7 Fe b 20 03 Has the GZK suppression been discovered ?

ar X iv : h ep - p h / 02 06 21 7 v 4 2 8 O ct 2 00 2 Has the GZK cutoff been discovered ?

The energy spectra of ultra high energy cosmic rays reported by the AGASA, Fly’s Eye, Haverah Park, HiRes, and Yakutsk experiments are all shown to be in agreement with each other for energies below 10 eV(after small adjustments, within the known uncertainties, of the absolute energy scales). The data from HiRes, Fly’s Eye, and Yakutsk are consistent with the expected flux suppression above 5×1...

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

ar X iv : h ep - p h / 06 02 06 6 v 1 7 Fe b 20 06 X ( 3872 ) in effective field theory

We consider the implications from the possibility that the recently observed state X(3872) is a meson-antimeson molecule. We write an effective Lagrangian consistent with the heavy-quark and chiral symmetries needed to describe X(3872) and study its properties.

ar X iv : h ep - p h / 03 02 13 2 v 1 1 7 Fe b 20 03 2 - loop QCD corrections to B c - meson leptonic constant .

We present results for two-loop QCD corrections to the short distance coefficient that governs leptonic decay of Bc-meson. After brief discussion of the technics of asymptotic threshold expansion used to perform this calculation, we give comments on the numerical value of twoloop corrections and its impact on NRQCD description of Bc-meson bound state dynamics.

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...