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19912026
Showing 2024 · hep-phShow all

9 papers · 2 filters

hep-ph2024★ 5 cited

Super-exponential Primordial Black Hole Production via Delayed Vacuum Decay

Yanda Wu, Stefano Profumo

If a cosmological first-order phase transition occurs sufficiently slowly, delayed vacuum decay may lead to the formation of primordial black holes. Here we consider a simple model…

hep-ph2024★ 5 cited

Recent Progress in Flavor Model Building

Wolfgang Altmannshofer, Admir Greljo

The flavor puzzles remain among the most compelling open questions in particle physics. The striking hierarchies observed in the masses and mixing of charged fermions define the St…

hep-ph2024★ 3 cited

Dark plasmas in the nonlinear regime: constraints from particle-in-cell simulations

William DeRocco, Pierce Giffin

If the dark sector possesses long-range self-interactions, these interactions can source dramatic collective instabilities even in astrophysical settings where the collisional mean…

hep-ph2024★ 8 cited

Electron EDM and in the 2HDM

Wolfgang Altmannshofer, Benoît Assi, Joachim Brod +4

We present the first complete two-loop calculation of the electric dipole moment of the electron, as well as the rates of the lepton-flavor violating decays and $τ\to…

hep-ph2024★ 1 cited

Lepton Flavor Violation at FCC-ee and CEPC

Pankaj Munbodh

Lepton flavor violating processes are highly suppressed in the Standard Model. Therefore, if observed, lepton flavor violation would be a clear indication of new physics beyond the…

hep-ph2024★ 14 cited

Discovering neutrino tridents at the Large Hadron Collider

Wolfgang Altmannshofer, Toni Mäkelä, Subir Sarkar +3

Neutrino trident production of di-lepton pairs is well recognized as a sensitive probe of both electroweak physics and physics beyond the Standard Model. Although a rare process, i…

hep-ph2024★ 9 cited

Nelson-Barr ultralight dark matter

Michael Dine, Gilad Perez, Wolfram Ratzinger +1

We show that, in the Nelson-Barr solution to the strong CP-problem, a naturally light scalar can arise. It gives rise to a completely new phenomenology beyond that of the celebrate…

hep-ph2024★ 5 cited

Astrophysical constraints from synchrotron emission on very massive decaying dark matter

Pankaj Munbodh, Stefano Profumo

If the cosmological dark matter (DM) couples to Standard Model (SM) fields, it can decay promptly to SM states in a highly energetic hard process, which subsequently showers and ha…

hep-ph2024★ 57 cited

The Waning of the WIMP: Endgame?

Giorgio Arcadi, David Cabo-Almeida, Maíra Dutra +7

Weakly Interacting Massive Particles (WIMPs) continue to be considered some of the best-motivated Dark Matter (DM) candidates. No conclusive signal, despite an extensive search pro…