![]() ![]() It is apparent that the different reaction mechanisms, yielding the dominant contributions to the cross-section at different values of (corresponding to different values of the Bjorken scaling variable, where is the nucleon mass and can be easily identified. Schematic representation of the inclusive electron-nucleus cross-section at beam energy around 1 GeV, as a function of energy loss. Here, and denote the target nucleus, in its ground state, and the undetected hadronic final state, respectively. In which only the outgoing lepton is detected, at beam energy around 1 GeV. As an example, Figure 1 shows the typical behavior of the double differential cross-section of the following inclusive process: ![]() Electron-nucleus scattering cross-sections are usually analyzed at fixed beam energy, and electron scattering angle as a function of the energy loss. Over the past decade, a growing effort has been made, aimed at making use of the knowledge of the nuclear response acquired from experimental and theoretical studies of electron scattering. Given the present experimental accuracy, the treatment of nuclear effects is in fact regarded as one of the main sources of systematic uncertainty (see, e.g., ). The use of nuclear targets as detectors, while allowing for a substantial increase of the event rate, entails nontrivial problems, as the interpretation of the observed signal requires a quantitative understanding of neutrino-nucleus interactions. IntroductionĮxperimental searches of neutrino oscillations exploit neutrino-nucleus interactions to infer the properties of the beam particles, which are largely unknown. Parameters is illustrated by analyzing the problem of neutrino energy reconstruction. The impact of nuclear effects on the determination of neutrino oscillation To include more complex mechanisms involving the two-nucleon currents, which are believed to be In the broad kinematical range covered by neutrino experiments. Realistic nucleon spectral functions, allowing one to describe a variety of reaction mechanisms active We research the theoretical approach based on the impulse approximation and the use of Owing to the uncertainty on the incoming neutrino energy,ĭifferent reaction mechanisms contribute to the cross section measured at fixed energy and scatteringĪngle of the outgoing lepton, and must therefore be consistently taken into account within a unified The quantitative description of the effects of nuclear dynamics on the measured neutrino-nucleusĬross sections-needed to reduce the systematic uncertainty of long baseline neutrino oscillationĮxperiments-involves severe difficulties. ![]()
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