Inclusive quasielastic electron-nucleus scattering

Benhar, Omar; Day, D.; Sick, I.

doi:10.1103/revmodphys.80.189

Cited by 274 publications

(423 citation statements)

References 240 publications

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“…It is also the channel that can be more reliably used for a kinematical neutrino energy reconstruction, an indispensable exercise for a precise determination of oscillation parameters in long-baseline accelerator experiments. Moreover, quasielastic scattering is interesting by itself and has, indeed, been carefully investigated with electron beams both experimentally and theoretically with a large variety of models [1,2,3,4]. With neutrinos it is possible to study different properties of the nuclear response in the axial sector that are not (easily) accessible in electron scattering experiments.…”

Section: Introduction By Charged Current Quasielastic Scattering (Ccqmentioning

confidence: 99%

Quasielastic Scattering at MiniBooNE Energies

Alvarez‐Ruso¹,

Buß²,

Leitner³

et al. 2009

AIP Conference Proceedings

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Abstract. We present our description of neutrino induced charged current quasielastic scattering (CCQE) in nuclei at energies relevant for the MiniBooNE experiment. In our framework, the nucIcons, with initial momentum distributions according to the Local Fermi Gas model, move in a density-and momentum-dependent mean field potential. The broadening of the outgoing nucleons due to nucleon-nucleon interactions is taken into account by spectral fimctions. Long range (RPA) correlations renormalizing the electroweak strength in the medium are also incorporated. The background from resonance excitation events that do not lead to pions in the final state is also predicted by propagating the outgoing hadrons with the Giessen semiclassical BUU model in coupled channels (GiBUU). We achieve a good description of the shape of the CCQE Q^ distribution extracted from data by MiniBooNE, thanks to the inclusion of RPA correlations, but imderestimate the integrated cross section when the standard value of M^ = 1 GeV is used. Possible reasons for this mismatch are discussed.

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Section: Introduction By Charged Current Quasielastic Scattering (Ccqmentioning

confidence: 99%

Quasielastic Scattering at MiniBooNE Energies

Alvarez‐Ruso¹,

Buß²,

Leitner³

et al. 2009

AIP Conference Proceedings

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“…Such processes are known to be important in describing electron-nucleus scattering (for a review, see [130]), but have not yet been included in the model of neutrino-nucleus interactions in our muon neutrino disappearance analyses. If such multinucleon effects are important, their omission could introduce a bias in the oscillation analyses.…”

Section: Multinucleon Effects Studymentioning

confidence: 99%

Measurements of neutrino oscillation in appearance and disappearance channels by the T2K experiment with6.6×1020protons on target

Abe¹,

Adam²,

Aihara³

et al. 2015

Phys. Rev. D

279

376

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We report on measurements of neutrino oscillation using data from the T2K long-baseline neutrino experiment collected between 2010 and 2013. In an analysis of muon neutrino disappearance alone, we find the following estimates and 68% confidence intervals for the two possible mass hierarchies: normal hierarchy∶ sin 2 θ 23 ¼ 0.514 þ0.055 −0.056 and Δm 2 32 ¼ ð2.51 AE 0.10Þ × 10 −3 eV 2 =c 4 and inverted hierarchy∶ sin 2 θ 23 ¼ 0.511 AE 0.055 and Δm 2 13 ¼ ð2.48 AE 0.10Þ × 10 −3 eV 2 =c 4 . The analysis accounts for multinucleon mechanisms in neutrino interactions which were found to introduce negligible bias. We describe our first analyses that combine measurements of muon neutrino disappearance and electron neutrino appearance to estimate four oscillation parameters, jΔm 2 j, sin 2 θ 23 , sin 2 θ 13 , δ CP , and the mass hierarchy. Frequentist and Bayesian intervals are presented for combinations of these parameters, with and without including recent reactor measurements. At 90% confidence level and including reactor measurements, we exclude the region δ CP ¼ ½0.15; 0.83 π for normal hierarchy and δ CP ¼ ½−0.08; 1.09 π for inverted hierarchy. The T2K and reactor data weakly favor the normal hierarchy with a Bayes factor of 2.2. The most probable values and 68% one-dimensional credible intervals for the other oscillation parameters, when reactor data are included, are sin 2 θ 23 ¼ 0.528 þ0.055 −0.038 and jΔm 2 32 j ¼ ð2.51 AE 0.11Þ × 10 −3 eV 2 =c 4 .

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“…The E(0) value corresponds to the zero-th moment of R L (ω, q). This is a classical integral property of R L (ω, q) that has been much discussed in the literature under the name of Coulomb sum rule (CSR) (for a review see [29,32]). The sum rule consists in connecting the integral of the inelastic longitudinal response to the number of protons and to the Fourier transform of the proton-proton correlation function ρ pp (s), i.e the probability to find two protons at a distance s. In fact for the charge density operator of Eq.…”

Section: Integral Properties Of Rlmentioning

confidence: 99%

Search for three-nucleon force effects on the longitudinal response function ofHe4

et al. 2009

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A detailed study of the 4 He longitudinal response function RL(ω, q) is performed at different kinematics, with particular emphasis on the role of three-nucleon forces. The effects shown are the results of an ab initio calculation where the full four-body continuum dynamics is considered via the Lorentz integral transform method. The contributions of the various multipoles to the longitudinal response function are analyzed and integral properties of the response are discussed in addition. The Argonne V18 nucleon-nucleon interaction and two different three-nucleon force models (Urbana IX, Tucson-Melbourne ′ ) are used. At lower momentum transfer (q ≤ 200 MeV/c) three-nucleon forces play an important role. One even finds a dependence of RL on the three-nucleon force model itself with differences up to 10%. Thus a Rosenbluth separation of the inclusive electron scattering cross section of 4 He at low momentum transfer would be of high value in view of a discrimination between different three-nucleon force models.

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Inclusive quasielastic electron-nucleus scattering

Cited by 274 publications

References 240 publications

Quasielastic Scattering at MiniBooNE Energies

Quasielastic Scattering at MiniBooNE Energies

Measurements of neutrino oscillation in appearance and disappearance channels by the T2K experiment with6.6×1020protons on target

Search for three-nucleon force effects on the longitudinal response function ofHe4

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