The experimenters will calibrate the MINERvA scintillator response (visible energy) to protons, pions, and electrons, to measure the resolution, and to reduce and then estimate the bias on the calorimetric shower energy reconstruction for these particles.
The MINERvA experiment will make detailed neutrino nucleus cross-section measurements over a range of energies (one to tens of GeV) and target nuclei (He, CH, C, Fe, Pb). This range is not yet explored completely or consistently, yet understanding these interactions is vital for current and upcoming neutrino oscillation experiments such as NOvA. MINERvA will systematically measure the detailed final states of low energy interactions, the calorimetric final states of higher energy interactions, and will be sensitive to how the cross sections evolve with the mass number A of the target nucleus as well as incident energy. In all cases, the reconstruction of pions and protons individually, as well as the total energy in hadronic showers, are vital to the MINERvA analysis goals.
The MINERvA test beam detector is a small version of the full detector. It will be approximately 1.1 meters square and roughly two meters long. The frame that contains the active components will be somewhat larger, approximately 3.5m x 3.5m x 3m in size. The scintillator readout is in the same UXVX orientation sequence as the full MINERvA detector. The frame holding the detector will importantly allow the experimenters to insert and remove lead and iron absorbers equivalent to the electron calorimeter (ECAL) and hadron calorimeter (HCAL) portions of the MINERvA detector. With no absorbers, the test detector will be like the fully-active MINERvA inner tracking detector.
|last modified 7/26/2002 email Fermilab|
|Security, Privacy, Legal|