Small-Angle Elastic Scattering of Protons and Pions, 7-20 BeV/<i>c</i>

Foley, K. J.; Lindenbaum, S. J.; Love, W. A.; Ozaki, Satoshi; Russell, J. J.; Yuan, Luke C. L.

doi:10.1103/physrevlett.11.425

Cited by 336 publications

(19 citation statements)

References 19 publications

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“…The Glauber model [75] was used to calculate the total cross section and subtracting the measured inelastic cross section to give the elastic cross section. In the case of inelastic scattering, available measurements for p-Be and p-Al, in the momentum range of MiniBooNE exist [76]. For quasi-elastic scattering, very few measurements are available, hence we make use of theoretical calculations.…”

Section: Modelling the Primary Proton Beam And Hornmentioning

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: Modelling the Primary Proton Beam And Hornmentioning

confidence: 99%

Antineutrino Neutral Current Interactions in MiniBooNE

Dharmapalan¹

2012

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“…The differential cross sections for the elastic π +(−) p → π +(−) p scattering at several pion momenta are presented in Fig. 10 in comparison with the available data [53][54][55]. The data at extreme forward angles [55] show an enhancement due to the Coulomb exchange, which is not taken into account in Eq.…”

Section: E Meson-nucleus Final-state Interactionsmentioning

confidence: 99%

Nuclear incoherent photoproduction ofπ0andηfrom 4 to 12 GeV

Rodrigues¹,

Arruda‐Neto²,

Mesa³

et al. 2010

Phys. Rev. C

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The mechanism of incoherent π 0 and η photoproduction from complex nuclei is investigated from 4 to 12 GeV with an extended version of the multicollisional Monte Carlo (MCMC) intranuclear cascade model. The calculations take into account the elementary photoproduction amplitudes via a Regge model and the nuclear effects of photon shadowing, Pauli blocking, and meson-nucleus final-state interactions. The results for π 0 photoproduction reproduced for the first time the magnitude and energy dependence of the measured rations σ γ A /σ γ N for several nuclei (Be, C, Al, Cu, Ag, and Pb) from a Cornell experiment. The results for η photoproduction fitted the inelastic background in Cornell's yields remarkably well, which is clearly not isotropic as previously considered in Cornell's analysis. With this constraint for the background, the η → γ γ decay width was extracted using the Primakoff method, combining Be and Cu data [ η→γ γ = 0.476 (62)

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“…[162], in which the amplitude for hadron-nucleus interactions is modeled as the coherent sum of the amplitudes for hadron-nucleon interactions. e hadronnucleon scattering amplitude in the forward direction is easily constructed from measurements compiled by multiple groups [117,163,164]. e amplitudes are summed according to the Glauber model [165].…”

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confidence: 99%

Measurement of muon neutrino and antineutrino induced single neutral pion production cross sections

Anderson

2011

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2011Elucidating the nature of neutrino oscillation continues to be a goal in the vanguard of the efforts of physics experiment. As neutrino oscillation searches seek an increasingly elusive signal, a thorough understanding of the possible backgrounds becomes ever more important.Measurements of neutrino-nucleus interaction cross sections are key to this understanding. Searches for ν μ → ν e oscillation-a channel that may yield insight into the vanishingly small mixing parameter θ 13 , CP violation, and the neutrino mass hierarchy-are particularly susceptible to contamination from neutral current single π 0 (NC 1π 0 ) production. Unfortunately, the available data concerning NC 1π 0 production are limited in scope and statistics.Without satisfactory constraints, theoretical models of NC 1π 0 production yield substantially differing predictions in the critical E ν ∼ 1 GeV regime. Additional investigation of this interaction can ameliorate the current de ciencies.e Mini Booster Neutrino Experiment (MiniBooNE) is a short-baseline neutrino oscillation search operating at the Fermi National Accelerator Laboratory (Fermilab). While the oscillation search is the principal charge of the MiniBooNE collaboration, the extensive data (∼ 10 6 neutrino events) offer a rich resource with which to conduct neutrino cross section measurements. is work concerns the measurement of both neutrino and antineutrino NC 1π 0 production cross sections at MiniBooNE. e size of the event samples used in the analysis exceeds that of all other similar experiments combined by an order of magnitude. We present the rst measurements of the absolute NC 1π 0 cross section as well as the rst differential cross sections in both neutrino and antineutrino mode. Speci cally, we measure single differential cross sections with respect to pion momentum and pion angle. We nd the ux-averaged, total cross sections for NC 1π 0 production on CH 2 to be AcknowledgementsImagine my dismay at learning that I did not become the kind of doctor that can order people to take off their pants. Awkward! I must have checked the wrong box on the form.Regardless, it would impolitic of me to fail to acknowledge those I worked (and played) with on my way to becoming a Doctor of Philosophy. e process has been occasionally tedious and quite oen challenging but generally fascinating and always enjoyable. Mathematica, I speak to you as a person because no soware could possibly be so ckle.I liken you to television' s Dr. Gregory House: abrasive and uncooperative to a fault, but always producing beautiful results. I invested countless hours in bending you to my will.Sometimes you would crash in protest and I would lose the day' s work. Well played, Mathematica! Well played, indeed. Aer much struggling, I was able to reliably produce gures in Mathematica, and very oen I would receive compliments for those gures. All told, the ends did justify the means.I am profoundly grateful to the friends in New Haven who provided much needed diversions: Tom, Ethan, Jerry, Kevin, Will, Peter...

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Small-Angle Elastic Scattering of Protons and Pions, 7-20 BeV/c

Cited by 336 publications

References 19 publications

Antineutrino Neutral Current Interactions in MiniBooNE

Antineutrino Neutral Current Interactions in MiniBooNE

Nuclear incoherent photoproduction ofπ0andηfrom 4 to 12 GeV

Measurement of muon neutrino and antineutrino induced single neutral pion production cross sections

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