Pion production by protons on a thin beryllium target at 6.4, 12.3, and 17.5 GeV/<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:mi>c</mml:mi></mml:mrow></mml:math>incident proton momenta

Chemakin, I.; Cianciolo, V.; Cole, B.; Fernow, R.; Frawley, A. D.; Gilkes, M. L.; Gushue, S.; Hartouni, E. P.; Hiejima, H.; Justice, M.; Kang, Joon Ho; Kirk, H.; Link, J. M.; Maeda, N.; McGrath, Robert; Mioduszewski, S.; Monroe, J.; Morrison, D. P.; Moulson, M.; Namboodiri, M.N.; Rai, G.; Read, Kenneth Francis; Remsberg, L. P.; Rosati, M.; Shin, Y. H.; Soltz, R. A.; Sorel, M.; Sörensen, S.; Thomas, J. H.; Torun, Y.; Winter, D.; Yang, X.; Zajc, W. A.; Zhang, Y.

doi:10.1103/physrevc.77.015209

Cited by 47 publications

(28 citation statements)

References 16 publications

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“…Data from the BNL E910 experiment [81] which measured π ± differential cross section for p-Be interaction at different energies was used to cover the energy regime not covered by the HARP data. properties can be measured from the external measurements [84].…”

Section: Secondary Particle Production Modelmentioning

confidence: 99%

Antineutrino Neutral Current Interactions in MiniBooNE

Dharmapalan¹

2012

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This dissertation reports the antineutrino-nucleus neutral current elastic scattering cross section on CH 2 measured by the MiniBooNE experiment located in Batavia, IL. The data set consists of 60,605 events passing the selection cuts corresponding to 10.1 × 10 20 POT, which represents the world's largest sample of antineutrino neutral current elastic scattering events.The final sample is more than one order of magnitude lager that the previous antineutrino NCE scattering cross section measurement reported by the BNL E734 experiment. The measurement presented in this dissertation also spans a wider range in Q 2 , including the low-Q 2 regime where the cross section rollover is clearly visible.A χ 2 -based minimization was performed to determine the best value of the axial mass, M A and the Pauli blocking scaling function, κ that matches the antineutrino NCE scattering data. However, the best fit values of M A =1.29 GeV and κ=1.026 still give a relatively poor χ 2 , which suggests that the underlying nuclear model (based largely on the relativistic Fermi gas model) may not be an accurate representation for this particular interaction.Additionally, we present a measurement of the antineutrino/neutrino-nucleus NCE scattering cross section ratio. The neutrino mode NCE sample used in this study, corresponding to 6.4 × 10 20 POT, is also the world's largest sample (also by an order of magnitude). We have demonstrated that the ratio measurement is robust, as most of the correlated errors cancel, as expected. Furthermore, this ratio also proves to be rather insensitive to variations in the axial mass and the Pauli blocking parameter. This is the first time that this ratio has been experimentally reported. We believe this measurement will aid the theoretical physics community to test various model predictions of neutrino-nucleon/nucleus interactions.ii

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Section: Secondary Particle Production Modelmentioning

confidence: 99%

Antineutrino Neutral Current Interactions in MiniBooNE

Dharmapalan¹

2012

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“…To improve the modeling of hadron interactions inside and outside the target, we use data from the NA61/SHINE experiment [18,19] collected at 31 GeV=c and several other experiments [20][21][22]. The hadron production data used for the oscillation analyses described here are equivalent to those used in our previous publications [3,11], including the statistics-limited NA61/SHINE data set taken in 2007 on a thin carbon target.…”

Section: A Neutrino Flux Simulationmentioning

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

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280

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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“…Table B.2: The best fit and covariance matrix of SW parameters describing π − production in the BNB determined from fits to HARP and E910 [101] π − production data. Parameters …”

Section: B2 Bnb π + π − Production Modelsmentioning

confidence: 99%

“…B.1 fit to the π ± production cross-sections at p B = 6.4 GeV/c and 12.3 GeV/c measured by the E910 experiment at Brookhaven National Laboratory [101]. A model such as SW was absolutely necessary for interpolating the differential cross-sections to p B = 8.9 GeV/c, but model uncertainties are large and difficult to quantify.…”

Section: C2 Significance Of Harp Data For Miniboonementioning

confidence: 99%

“…B.7 and used to describe K + production. The pion models are determined using data from the E910 [101] and HARP experiments, the latter being the data described previously in this dissertation. The K + model is based on data from 8 kaon production experiments and the K 0 model is based on E910 data and those of Abe et al [106].…”

Section: Filling the Inclusive Cross-section Tablesmentioning

confidence: 99%

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A measurement of hadron production cross sections for the simulation of accelerator neutrino beams and a search for muon-neutrino to electron-neutrino oscillations in the Δm<sup>2</sup> about equals 1-eV<sup>2</sup> region

Schmitz

2008

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First, charged pion and proton production is measured at the HARP experiment for two experimental configurations relevant to two contemporary accelerator-based neutrino beams. Double-differential cross-sections for π + , π − and proton production are presented for proton+beryllium collisions at 8.9 GeV/c and proton+aluminum collisions at 12.9 GeV/c. These data have been used in the predictions of neutrino fluxes by the K2K experiment in Japan and the MiniBooNE and SciBooNE experiments at Fermilab.Second, a search for evidence of muon neutrino to electron neutrino oscillations at MiniBooNE is presented. MiniBooNE was designed to search for evidence of ν µ → ν e oscillations consistent with a mass-squared splitting near 1 eV 2 . Evidence of such an oscillation was reported by the LSND collaboration in the 1990s but has not been confirmed by other experiments. A method which combines the electron neutrino candidate sample with the high statistics muon neutrino candidate sample to define a single χ 2 statistic is developed. A complete description of experimental uncertainties is contained within a correlated error matrix which includes correlations between the two samples. This correlation reduces the uncertainty on the prediction of the smaller statistics electron sample and improves MiniBooNE's sensitivity to oscillations. Analysis of the MiniBooNE electron candidate data reveals no evidence of direct ν µ → ν e oscillations consistent with this interpretation of the LSND data.

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Pion production by protons on a thin beryllium target at 6.4, 12.3, and 17.5 GeV/cincident proton momenta

Cited by 47 publications

References 16 publications

Antineutrino Neutral Current Interactions in MiniBooNE

Antineutrino Neutral Current Interactions in MiniBooNE

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

A measurement of hadron production cross sections for the simulation of accelerator neutrino beams and a search for muon-neutrino to electron-neutrino oscillations in the Δm<sup>2</sup> about equals 1-eV<sup>2</sup> region

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