Tootfinder

Searching for long-lived light neutralinos from $B$-meson decays with baryonic R-parity violation at Belle II
Emilie Bertholet, Claudio O. Dib, Sara P. Gandelman, Juan Carlos Helo, Valery E. Lyubovitskij, Minakshi Nayak, Nicol\'as A. Neill, Abner Soffer, Zeren Simon Wang
https://arxiv.org/abs/2507.00359

Searching for long-lived light neutralinos from $B$-meson decays with baryonic R-parity violation at Belle II
In a supersymmetry scenario with R-parity violation (RPV), neutralinos with GeV-scale mass, which are necessarily bino-like, are allowed by all constraints and can be produced in association with a baryon in $B$-meson decays via certain $\bar U \bar D \bar D$ operators. In this work, we investigate this scenario with two non-vanishing RPV couplings at the low-energy scale. With one RPV coupling governing the neutralino production rate and another determining its lifetime, this scenario can lead…

Updated Constraints from Electric Dipole Moments in the MSSM with R-Parity Violation
Wolfgang Altmannshofer, P. S. Bhupal Dev, Amarjit Soni, Fang Xu
https://arxiv.org/abs/2507.23722

Updated Constraints from Electric Dipole Moments in the MSSM with R-Parity Violation
We revisit the electric dipole moments (EDMs) of quarks and leptons in the Minimal Supersymmetric Standard Model (MSSM) with trilinear $R$-parity violation (RPV). In this framework, EDMs are induced at the two-loop level via RPV interactions. We perform a comprehensive recalculation of several classes of Barr-Zee type diagrams in a general $R_ξ$ gauge. While we find general agreement with previous analytic results in the literature, our work provides a valuable independent cross-check of the c…

Can Effective $4-$Quark Operators Describe Signals of a Supersymmetric Diquark Model at the LHC?
Manuel Drees, Cong Zhang
https://arxiv.org/abs/2506.13500 …

Can Effective $4-$Quark Operators Describe Signals of a Supersymmetric Diquark Model at the LHC?
The Standard Model Effective Field Theory (SMEFT) is constrained by current LHC data. Supposedly extensions of the Standard Model (SM) involving heavy particles can be constrained by matching onto the SMEFT. However, the reliability of these indirect constraints compared to those derived directly from the UV model remains an open question. In this paper, we investigate whether $4-$quark operators can accurately capture the effects of an $R-$parity-violating (RPV) supersymmetric model on the pro…