9–11 May 2022
University of Pittsburgh
US/Eastern timezone

Resonances in $\bar\nu_e-e^-$ scattering at FASER$\nu$ and Forward Physics Facility

10 May 2022, 15:00
15m
Lawrence Hall 106

Lawrence Hall 106

Speaker

Vedran Brdar (MPIK Heidelberg)

Description

I will discuss the resonant production and detection of charged mesons in existing and near-future neutrino scattering experiments with $E_\nu \lesssim 1$ TeV, characteristic of high-energy atmospheric neutrinos or collider-sourced neutrino beams.
The most promising candidate is the reaction $\bar{\nu}_e e^-\rightarrow \rho^-\rightarrow \pi^- \pi^0$. I will discuss detection prospects at FASER$\nu$, the LHC's forward physics facility with nuclear emulsion (FASER$\nu$2) and liquid argon detectors (FLArE) and estimate the number
of expected resonance-mediated events in the existing data set of IceCube. In particular, dozens of events are predicted at the forward physics facility.
I will also outline possible detection strategies for the different experimental environments by identifying cuts with order one signal efficiency that
could potentially suppress backgrounds at FASER$\nu$, yielding a signal-to-background ratio larger than 1. Antineutrino-induced $s$-channel meson resonances
are yet unobserved Standard Model scattering processes which offer a realistic target for near-term experiments.

Author

Vedran Brdar (MPIK Heidelberg)

Presentation materials