Speaker
Description
The Low Energy nuSTORM (Neutrinos from STored Muons) facility at ESS focuses on the detailed measurement of neutrino-nucleus cross-section within the neutrino energy range relevant to ESSnuSB, a proposed neutrino long-baseline experiment at ESS, Lund, Sweden, which aims to measure the leptonic CP-violating phase, $\delta_{CP}$.
nuSTORM was introduced in 1980 and uses neutrinos from muons stored in a racetrack-shaped ring. The precisely controlled stored muon intensities in the ring make it possible to measure absolute cross-section with high precision, explore the potential existence of sterile neutrinos, and test technologies critical to the progress towards a Muon Collider.
LEnuSTORM utilizes the ESS linear accelerator and much of the infrastructure of the ESSnuSB long-baseline experiment. It will receive compressed proton beam pulses from the ESSnuSB accumulator, requiring only one of the four sub-pulses per main pulse, and a single target with a horn. The compressed proton pulse will generate a short pulse of charged pions emerging from the horn. These pions will be transferred to and injected into the muon storage ring, where they will decay and produce the muon beam.
Previous nuSTORM designs are designed for higher beam energies in the GeV range, whereas the LEnuSTORM, which relies on the ESS, aims to perform cross-section measurements in the low-energy region of 0.2- 0.6 GeV where cross-section data is currently missing. In this work, I will present the general concept and optimization of the nuSTORM, as well as the latest design of the LEnuSTORM facility.