Test of Fermi gas model and plane-wave impulse approximation against electron-nucleus scattering data

Butkevich, A.; Mikheyev, S.

doi:10.1103/physrevc.72.025501

Cited by 20 publications

(28 citation statements)

References 34 publications

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“…Despite the fact that the approach of Butkevich and Mikheyev [6] is based on the SF, it yields results very similar to these for the FG model when ω is near the value corresponding to the QE peak or higher. The reason of this behavior lies in too simple treatment of the MF part in their SF: the energy distribution was limited to a single δ function.…”

Section: Calciummentioning

confidence: 76%

“…Oxygen was selected because of additional opportunity to compare results with a more systematic theoretical approach to modeling of the SF [5], whereas the calcium nucleus is most similar to argon's, for which precise measurements have been performed. Our description of 40 20 Ca is confronted also with the theoretical results of Butkevich and Mikheyev [6]. Finally, a comparison with the few known data for electron scattering off argon [7] is done as well.…”

Section: Introductionmentioning

confidence: 97%

“…However, the inaccuracy of the FG and the approach of Ref. [6] is visibly more severe. Similar problems for oxygen occur when E k ≤ 700 MeV.…”

Section: Calciummentioning

confidence: 99%

“…6 the cross sections obtained using the FG model (p F = 249 MeV, ǫ B = 33 MeV [20]; represented by the dotted line), the GSF (solid line), and the calculations of Butkevich and Mikheyev [6] (dashed line) to the sample of electron scattering data collected at scattering angle 45.5 • and various 40 18 Ar beam energies [23]. Only our model includes FSI effects.…”

Section: Calciummentioning

confidence: 99%

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Construction of spectral functions for medium-mass nuclei

2008

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This article is aimed at improving the description of lepton-nucleus interactions in the sub-GeV energy range. Approximate spectral functions for oxygen, calcium, and argon are constructed and used to obtain the electron cross sections in a given scattering angle. Comparison with a sample of available experimental data shows satisfactory agreement. Discrepancy between the presented model and the systematic computations available for oxygen [O. Benhar et al., Phys. Rev. D 72, 053005 (2005)] is also found to be very small. Analysis of appropriate kinematical regions leads to the conclusion that the obtained argon spectral function should describe well neutrino scattering in the 800-MeV energy region. Several approximations used in the model are critically reviewed. All the details needed to implement the presented approach in Monte Carlo simulations are given.

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Section: Calciummentioning

confidence: 76%

Section: Introductionmentioning

confidence: 97%

“…However, the inaccuracy of the FG and the approach of Ref. [6] is visibly more severe. Similar problems for oxygen occur when E k ≤ 700 MeV.…”

Section: Calciummentioning

confidence: 99%

Section: Calciummentioning

confidence: 99%

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Construction of spectral functions for medium-mass nuclei

2008

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“…The low Q 2 physics is usually controlled by nuclear model, so we want to tune the nuclear model, especially the strength of Pauli blocking, to fix region (1). This is justified because electron scattering data has not provided precise information for Pauli blocking in the low Q 2 region in terms of the RFG model [5]. For (2), we need to increase axial mass M A to increase the cross section at high Q 2 .…”

Section: Miniboone Ccqe Eventsmentioning

confidence: 99%

Charged-Current Interaction Measurements in MiniBooNE

Katori

2007

AIP Conference Proceedings

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Abstract. Neutrino oscillation is the only known phenomenon for physics beyond the standard model. To investigate this phenomenon, the understanding of low energy neutrino scattering (200 < E ν < 2000 MeV) is the crucial task for high energy physicists. In this energy region, the charged current quasi-elastic (CCQE) neutrino interaction is the dominant process, and experiments require a precise model to predict signal samples. Using a high-statistics sample of muon neutrino CCQE events, MiniBooNE finds that a simple Fermi gas model, with appropriate adjustments, accurately characterizes the CCQE events on carbon. The extracted parameters include an effective axial mass, M A = 1.23 ± 0.20 GeV, and a Pauli-blocking parameter, κ = 1.019 ± 0.011.Keywords: axial mass, charged current quasi-elastic, neutrino, MiniBooNE, Pauli blocking PACS: 11.80.Cr,13.15.+g,14.60.Lm,14.60.Pq CCQE event selection in MiniBooNEThe MiniBooNE detector, a spherical tank filled with mineral oil, detectsČerenkov light from charged particles 1 . The identification of ν µ CCQE interactions relies solely on the detection of the primary muonČerenkov light and the associated decay electroň Cerenkov light in these events ( Fig. 1):By avoiding requirements on the outgoing proton kinematics, the selection is less dependent on nuclear models. The scintillation light from the proton, although not used directly in the ν µ CCQE analysis, is intensively studied in neutral current elastic scattering events at MiniBooNE [3]. A total of 193,709 events pass the MiniBooNE ν µ CCQE selection criteria [2] from 5.58 × 10 20 protons on target collected between August 2002 and December 2005. The cuts are estimated to be 35% efficient at selecting ν µ CCQE events in a 500 cm radius, with a CCQE purity of 74%. The predicted backgrounds are: 74.8% CC 1π + , 15.0% CC 1π 0 , 4.0% NC 1π ± , 2.6% CC multi-π, 0.9% NC elastic, 0.8%ν µ CC 1π − , 0.8% NC 1π 0 , 0.6% η/ρ/K production, and 0.5% deep inelastic scattering and other events. Because pions can be absorbed via final state interactions in the target nucleus, a large fraction of the background events look like CCQE events in the MiniBooNE detector. "CCQE-like" events, all events with a muon and no pions in the final state, are predicted to be 84% of the sample after cuts.1 The detailed information of the Fermilab Booster neutrino beamline and the MiniBooNE neutrino detector are available elsewhere [1,2].

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Measurement of the Antineutrino Double-Differential Charged-Current Quasi-Elastic Scattering Cross Section at MINERvA

Patrick¹

2018

Springer Theses

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Channel Each PMT (and FEB) has 64 channels, which are connected to 64 different strips in the detector. Each corresponds to a Crate-CROC-Chain-Board-Pixel. Note: electrical engineers will sometimes use the word channel to refer to a chain (but they count from1 instead of 0, so channel number will be chain number plus 1). This is very confusing. Do not do it.Charged-current Any interaction wherein a neutrino exchanges a W boson, converting into its partner charged lepton. Chvojka corollary Free coffee for people writing their theses!Crate There are two crates, each of which contains CROCs. There are 8 CROC-Es in Crate -and 7 in Crate 1.CRIM Helps to synch the timing of the CROC-Es. There are 4 CROC-Es per CRIM (two CRIMs per crate).CROC-E Chain readout controller (ethernet). Up to four chains of FEBs are connected to a CROC, which polls the chains for readout.Cross talk Current in a given channel can induce a small amount of current in the neighboring channel. The weave is used to protect us from false readings due to cross talk. DAQThe system that receives raw data from the detector and stores it to disk.dCache System for long-term data storage. Files copied to dCache will either be stored to disk or to tape, and can be accessed seamlessly using Samweb.DIS Deep inelastic scattering -occurs at high Q 2 , where the neutrino scatters off a constituent quark in the nucleon, breaking it apart. DedicationDedicated to my Dad, Richard Patrick, who I wish was here to read this. I miss you.

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Test of Fermi gas model and plane-wave impulse approximation against electron-nucleus scattering data

Cited by 20 publications

References 34 publications

Construction of spectral functions for medium-mass nuclei

Construction of spectral functions for medium-mass nuclei

Charged-Current Interaction Measurements in MiniBooNE

Measurement of the Antineutrino Double-Differential Charged-Current Quasi-Elastic Scattering Cross Section at MINERvA

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