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Isaacson, Joshua [Michigan State U.]

Publications and source records attributed to Isaacson, Joshua [Michigan State U.].

Investigating One- and Two-Body Interference Terms in Neutrino Argon Interactions with ACHILLES at LArTPCs

Due to the complex nature of heavy nuclei, uncertainties in the prediction of neutrino-nucleus cross-sections contribute significantly to the systematic limitations of neutrino oscillation experiments. Current neutrino detectors are dedicating significant effort to measuring these cross-sections in order to improve the sensitivities of next-generation experiments. To extract translatable scattering parameters that can be applied between detector media and beam energies, these measurements must be supported by robust theoretical modelling. ACHILLES is a recent theory-driven lepton-nucleus scattering generator that aims to be easily extensible, while also providing modern accurate theory predictions. This talk will discuss the application of ACHILLES to derive experimental observables for the investigation of interference between one- and two-body scattering processes in neutrino-nucleus interactions. We will show studies primarily using the Booster Neutrino Beam (BNB) flux in the context of the SBND experiment, which is collecting world-leading statistics for neutrino argon scattering, utilising its PRISM capabilities.

Paton, Josephine L. [Fermilab]↗

LHC Event Generation in the Exascale Era

MCFM is a dedicated Monte-Carlo simulation program for collider phenomenology at highest energies. Designed during the Tevatron era, it has successfully incorporated the latest developments needed for LHC precision calculations and remained on the forefront of collider phenomenology. The Fortran code includes interfaces to modern PDF and loop reduction libraries but has been unchanged structurally compared to the earlier versions. Parallel computing has been enabled using OpenMP and MPI. MCFM provides numerically highly stable one-loop amplitudes and superior phase-space efficiency, leading to excellent performance in NXLO calculations using jettiness or qT subtraction techniques for IR regularization.

Campbell, John [Fermilab]↗