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June 22, 2020 to July 2, 2020
US/Central timezone

Lepton-Nucleus Cross Section Measurements for DUNE with the LDMX Detector

Not scheduled
10m

Speakers

Nhan Tran (FNAL) Omar Moreno (SLAC National Accelerator Laboratory) Shirley Li (SLAC National Accelerator Laboratory)

Description

We point out that the LDMX (Light Dark Matter eXperiment) detector design, conceived to search for sub-GeV dark matter, will also have very advantageous characteristics to pursue electron-nucleus scattering measurements of direct relevance to the neutrino program at DUNE and elsewhere. These characteristics include a 4-GeV electron beam, a precision tracker, electromagnetic and hadronic calorimeters with near 2π azimuthal acceptance from the forward beam axis out to ∼40° angle, and low reconstruction energy threshold. LDMX thus could provide (semi)exclusive cross section measurements, with detailed information about final-state electrons, pions, protons, and neutrons. We compare the predictions of two widely used neutrino generators (GENIE, GiBUU) in the LDMX region of acceptance to illustrate the large modeling discrepancies in electron-nucleus interactions at DUNE-like kinematics. We argue that discriminating between these predictions is well within the capabilities of the LDMX detector.

Mini-abstract

LDMX will measure electron-nucleus scattering relevant to long-baseline oscillation program

Primary authors

Nhan Tran (FNAL) Omar Moreno (SLAC National Accelerator Laboratory) Shirley Li (SLAC National Accelerator Laboratory)

Presentation Materials