The mechanisms which amplify orbitally driven changes in insolation and drive the glacial cycles of past 2.6 million years, Pleistocene, are poorly understood. Previous studies indicate that cloud phase feedbacks oppose ice sheet initiation when orbital configuration supports growth. Cloud was observationally constrained a recent study provides evidence for weaker negative feedback response to ...

Using the integrability of sinh-Gordon equation, we demonstrate spectral stability its elliptic solutions. By constructing a Lyapunov functional using higher-order conserved quantities show that these solutions are orbitally stable with respect to subharmonic perturbations arbitrary period.

We briefly review the status of various conventional quark-antiquark mesons below 2 GeV and outline some open questions: strangeantistrange orbitally excited vector meson, nonet axial-tensor (chiral partners well known tensor mesons), isoscalar mixing angle in pseudotensor sector, which can eventually represent a novel manifestation chiral anomaly.

Results of the first measurement of P orbitally excited neutral D-meson states, D 2 and D 1, produced in hadron collisions at the Tevatron are presented. Using data from the displaced track trigger, CDF II collects a large sample of these states in decay modes D π−, D π−. Masses and widths of both states have been measured with precision better than or comparable to that of the world average.