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Searching for a Single Photon from Lightest Neutralino Decays in R-parity-violating Supersymmetry at FASER
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abstract
In this work, we propose a search for a single photon at \texttt{FASER} and \texttt{FASER2}, produced from decays of bino-like, sub-GeV lightest neutralinos in the theoretical framework of the R-parity-violating (RPV) Minimal Supersymmetric Standard Model (MSSM). We consider a list of representative benchmark scenarios with one or two non-vanishing RPV couplings. The photon has an energy $\mathcal{O}\left(0.1\right)-\mathcal{O}\left(1\right)$ TeV. We find a sensitivity reach for RPV couplings beyond the current bounds by orders of magnitude at \texttt{FASER} and \texttt{FASER2}.
Forward citations
Cited by 2 Pith papers
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Probing light neutralinos from pair-produced sleptons with displaced vertices at the high-luminosity LHC
A displaced-vertex search for slepton pair production at the HL-LHC can probe RPV coupling lambda-prime-111 down to about 1e-7 and neutralino masses up to roughly 1 TeV, far beyond single-slepton production.
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Searching for long-lived particles from stopped pions and muons at the CiADS-BDE
Projected 5-year sensitivity of the proposed CiADS-BDE shows reach beyond current bounds for HNLs, electrophilic and LFV ALPs, and RPV light binos.
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