17 papers
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 $Ï\…
Large Hadronic Effects in ?
Wolfgang Altmannshofer, Samuel G. Christensen, Peter Stangl
Recent results from LHCb have confirmed the long-standing anomaly, an intriguing discrepancy in the angular distribution of the decay that might b…
Updated Constraints from Electric Dipole Moments in the MSSM with R-Parity Violation
Wolfgang Altmannshofer, P. S. Bhupal Dev, Amarjit Soni +1
We revisit the electric dipole moments (EDMs) of quarks and leptons in the Minimal Supersymmetric Standard Model (MSSM) with trilinear -parity violation (RPV). In this framework…
Exploring Invisible New Physics with Exotic Pion Decays
Wolfgang Altmannshofer, Jeff A. Dror, Pierce Giffin +5
We study the sensitivity of past and future stopped-pion experiments to light, invisible dark sector particles produced in exotic pion decays. We consider two-body decays involving…
Hadronic CP Violation in the 2HDM
Wolfgang Altmannshofer, Joachim Brod, Patipan Uttayarat +1
We present the first complete two-loop calculation of the electric and chromo-electric dipole moments of the light quarks and the gluon, as well as contributions to CP-violating le…
Ultra-Strongly Self-Interacting Dark Matter: From Phenomenology to Astrophysical Observables
M. Grant Roberts, Wolfgang Altmannshofer, Pierce Giffin +1
We develop a minimal, testable framework for two-component self-interacting dark matter (SIDM) in which a dominant, moderately self-interacting species coexists with an ultra-stron…