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@newsie@darktundra.xyz
2025-07-07 14:04:23

Russia’s St. Petersburg hit by major internet outage amid drone strike warnings therecord.media/russia-saint-p

Russia’s St. Petersburg hit by major internet outage amid drone strike warnings
The outages in Russia's second largest city are the latest in a series of shutdowns that may be linked to the Kremlin’s efforts to protect critical infrastructure from Ukrainian drone attacks.

@arXiv_hepth_bot@mastoxiv.page
2025-08-01 09:14:11

On the reggeon model with the pomeron and odderon: singularities with non-zero masses
M. A. Braun (Saint-Petersburg State University, Russia), E. M. Kuzminskii (Petersburg Nuclear Physics Institute, Russia), M. I. Vyazovsky (Saint-Petersburg State University, Russia)
arxiv.org/abs/2507.23086

On the reggeon model with the pomeron and odderon: singularities with non-zero masses
The Regge-Gribov model of the pomeron and odderon in the non-trivial transverse space is studied by the renormalization group technique in the single loop approximation. The pomeron and odderon are taken to have different bare intercepts and slopes. The behaviour when the intercepts move from below to their critical values compatible with the Froissart limitation is studied. The singuarities in the form of non-trivial branch points indicating a phase transition are found in the vicinity of five…