Is the ν µ → ν s oscillation solution to the atmospheric neutrino anomaly excluded by the superKamiokande data? Abstract Recently the SuperKamiokande collaboration have claimed that their data exclude the ν µ → ν s solution to the atmospheric neutrino anomaly at more than 99% C.L. We critically examine this claim.

We apply Kac's theory of elements of finite order (EFO) in Lie groups to the description of discrete gauge symmetries in various supersymmetric grand unified models. Taking into account the discrete anomaly cancellation conditions, we identify the EFO which generate certain matter parities in the context of the supersymmetric SO(10) and E 6 models.

A physical model for parton densities in hadrons, based on Gaussian momentum fluctuations of partons and hadronic baryon-meson fluctuations, is presented. The model has previously been shown to describe proton structure function data, and is now applied to sea quark asymmetries and shown to describe the ¯ d − ¯ u asymmetry of the proton. By considering fluctuations involving strange quarks, the...

We consider a free two-form in six dimensions and calculate the conformal anomaly associated with a Wilson surface observable. May 1999 email:[email protected] email:[email protected]

In this paper, by combining modular forms and characteristic forms, we obtain general anomaly cancellation formulas of any dimension. For .4kC 2/–dimensional manifolds, our results include the gravitational anomaly cancellation formulas of Alvarez-Gaumé and Witten in dimensions 2, 6 and 10 [1] as special cases. In dimension 4k C 1 , we derive anomaly cancellation formulas for index gerbes. In d...

We discuss whether the NuTeV anomaly can be explained, compatibly with all other data, by QCD effects (maybe, if the strange sea is asymmetric, or there is a tiny violation of isospin), new physics in propagators or couplings of the vector bosons (not really), loops of supersymmetric particles (no), dimension six operators (yes, for one specific SU(2)L-invariant operator), leptoquarks (not in a...

The current analysis of atmospheric neutrinos by the Super-Kamiokande Collaboration is based only on fully-contained one-ring events and partially contained events. We show that the up-down ratio of fully-contained, inclusive, multi-ring events gives an independent test of the atmospheric neutrino anomaly, without the need for particle identification. Moreover, this class of events is rich in n...

McLean et al. [2009] claim that the El Niño/Southern Oscillation (ENSO), as represented by the Southern Oscillation Index (SOI), accounts for as much as 72% of the global tropospheric temperature anomaly (GTTA) and an even higher 81% of this anomaly in the tropics. They conclude that the SOI is a “dominant and consistent influence on mean global temperatures,” “and perhaps recent trends in glob...

Anomaly mediation mechanism of supersymmetry breaking is known to have an unsatisfactory aspect which is often referred to as the tachyonic slepton problem. A possible way out of this difficulty is investigated by considering the mediation mechanism not only of the super-Weyl but of Kähler part of anomaly. A new formula for the scalar mass squared is presented by including the effect of the Käh...

The experimental hint of large B → η ′ + X s could be linked to the b → s penguins via the gluon anomaly. If running α s is used in the η ′-g-g coupling, the standard b → sg * penguin alone may not be enough, calling for the need of dipole b → sg from new physics. The latter could be at 10% level as suggested by charm counting and B s.l. problems. The added new physics contribution not only bri...