Measurement of the cross sections for inclusive electron scattering in the E12-14-012 experiment at Jefferson Lab

Abstract

The E12-14-012 experiment performed at Jefferson Lab Hall A has collected inclusive electronscattering data for different targets at the kinematics corresponding to beam energy 2.222 GeV and scattering angle 15.54 • . Here we present a comprehensive analysis of the collected data, and perform comparisons of the double differential cross sections for inclusive scattering of electrons extracted using solid targets (aluminum, carbon, and titanium) and a closed argon-gas cell. The data cover a wide range of kinematic regimes, in which quasielastic interaction, ∆-resonance excitation, and deep-inelastic scattering contribute. The double differential cross sections are reported with high precision (∼3%) for all targets over the covered kinematic range.

Assessing the accuracy of the GENIE event generator with electron-scattering data

“…Let us now consider electron beams in the few-GeV energy range. As our first illustration, we will use inclusive scattering datasets recently collected at Jefferson Laboratory (JLab) using a 2.2 GeV electron beam [25][26][27]. An important advantage of these measurements is that they include argon and titanium-making them directly relevant to DUNE-as well as carbon and a target made of aluminum alloy 7075, allowing for simultaneous investigations across a range of nuclei.…”

A quantum Monte Carlo based approach to intranuclear cascades

“…For reference, we reproduce those in Figs. 10. As it can be seen, the cross sections from these databases are similar in the region where the elastic contribution dominates, that is, below 300 MeV for pp interactions and 500 MeV for np interactions.…”

“…Within this algorithm, the system is not evolved in time steps but rather in constant position steps that we indicate as λ max . At each step of the loop the mean free path of the propagating particle reads λ = 1/ ρ p (r)σ N p + ρ n (r)σ N n (10) where N = n, p refers to the isospin of the propagating particle and r its distance from the centre of the nucleus. Note that in the limit of constant density, ρ p(n) (r) = ρ, we would recover λ = λ mfp .…”

“…Refs. [1][2][3][4][5][6][7][8][9][10]), neutrino oscillation experiments [11][12][13][14], and dark matter searches [15]. For example, scattering of neutrinos on nuclei can produce a number of outgoing hadrons.…”

Theoretical tools for neutrino scattering: interplay between lattice QCD, EFTs, nuclear physics, phenomenology, and neutrino event generators

“…Precision measurements of inclusive electron-nucleus scattering at a wide variety of kinematics are important for validating nuclear models [539]. Recent electron scattering measurements [540][541][542][543][544][545][546] on various targets (including Ar) indicate sizable discrepancies in the generator models beyond the quasielastic peak [539,547]. The essential first step is to incorporate the information on the nuclear ground state [540,544,545].…”