Energy reconstruction in quasielastic scattering in the MiniBooNE and T2K experiments

Lalakulich, O.; Mosel, U.; Gallmeister, K.

doi:10.48550/arxiv.1208.3678

Cited by 9 publications

(12 citation statements)

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“…As was discussed in Refs. [48,49,82,83], the influence of the multinucleon channel also manifests in the problem of the neutrino energy reconstruction [48,49,[82][83][84][85][86][87][88][89].…”

Section: Introductionmentioning

confidence: 99%

Assessing the role of nuclear effects in the interpretation of the MiniBooNE low-energy anomaly

Ericson

Garzelli²,

Giunti

et al. 2016

Phys. Rev. D

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13 pagesInternational audienceWe study the impact of the effect of multinucleon interactions in the reconstruction of the neutrino energy on the fit of the MiniBooNE data in terms of neutrino oscillations. We obtain some improvement of the fit of the MiniBooNE low-energy excess in the framework of two-neutrino oscillations and a shift of the allowed region in the $\sin^2 2\vartheta$--$\Delta{m}^2$ plane towards smaller values of $\sin^2 2\vartheta$ and larger values of $\Delta{m}^2$. However this effect is not enough to solve the problem of the appearance-disappearance tension in the global fit of short-baseline neutrino oscillation data

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Section: Introductionmentioning

confidence: 99%

Assessing the role of nuclear effects in the interpretation of the MiniBooNE low-energy anomaly

Ericson

Garzelli²,

Giunti

et al. 2016

Phys. Rev. D

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“…In traditional charged-current quasielastic neutrino scattering, CCQE, the neutrino is converted to a charged lepton via exchange of a W boson with a nucleon, resulting in the following reaction: ν l n → l − p. (Antineutrino scattering reverses the lepton number and isospin: νl p → l + n.) Because the MINERvA detector is not magnetized, in this analysis we cannot differentiate between electrons and positrons on an event-by-event basis. Moreover, hadrons exiting the nucleus after the interaction can re-interact and change identity or eject other hadrons [7]; furthermore, interactions between nucleons within the initial state may cause multiple nucleons to be ejected by a single interaction or deform the observed kinematics [8,9]. Therefore, we choose a signal definition for this analysis that is more closely related to what is observable in the experiment: we search for events with either an electron or positron, no other leptons or photons, any number of nucleons, and no other hadrons, irrespective of the "true" original process.…”

Section: Signal Definitionmentioning

confidence: 99%

Electron Neutrino Charged-Current Quasielastic Scattering in the MINERvA Experiment

Wolcott

2016

Proceedings of the 10th International Workshop on Neutrino-Nucleus Interactions in Few-GeV Region (NuInt15)

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The electron-neutrino charged-current quasielastic (CCQE) cross section on nuclei is an important input parameter for electron neutrino appearance oscillation experiments. Current experiments typically begin with the muon neutrino cross section and apply theoretical corrections to obtain a prediction for the electron neutrino cross section. However, at present no experimental verification of the estimates for this channel at an energy scale appropriate to such experiments exists. We present the cross sections for a CCQE-like process determined using the MINERvA detector, which are the first measurements of any exclusive reaction in few-GeV electron neutrino interactions. The result is given as differential cross-sections vs. the electron energy, electron angle, and square of the four-momentum transferred to the nucleus, Q 2 . We also compute the ratio to a muon neutrino cross-section in Q 2 from MINERvA. We find satisfactory agreement between these measurements and the predictions of the GENIE generator. We furthermore report on a photon-like background unpredicted by the generator which we interpret as neutral-coherent diffractive scattering from hydrogen.

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“…The understanding of charged-current single-pion channels is of great interest to the nuclear community, but also, there are significant implications for the neutrino oscillation studies. These interactions produce an irreducible background for CCQE events [38][39][40][41]. If the detector fails to tag outgoing pions, either because of detector effects or nuclear effects, pion production channels may be misclassified as CCQE.…”

Section: Charged Single Pion Productionmentioning

confidence: 99%

Beyond Standard Model Searches in the MiniBooNE Experiment

Katori

Conrad

2015

Advances in High Energy Physics

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The MiniBooNE Experiment has contributed substantially to beyond standard model searches in the neutrino sector. The experiment was originally designed to test the ∆m 2 ∼ 1 eV 2 region of the sterile neutrino hypothesis by observing ν e (ν e ) charged current quasi-elastic signals from a ν µ (ν µ ) beam. MiniBooNE observed excesses of ν e andν e -candidate events in neutrino and anti-neutrino mode, respectively. To date, these excesses have not been explained within the neutrino Standard Model (νSM), the Standard Model extended for three massive neutrinos. Confirmation is required by future experiments such as MicroBooNE. MiniBooNE also provided an opportunity for precision studies of Lorentz violation. The results set strict limits for the first time on several parameters of the Standard Model-Extension, the generic formalism for considering Lorentz violation. Most recently, an extension to MiniBooNE running, with a beam tuned in beam-dump mode, is being performed to search for dark sector particles. This review describes these studies, demonstrating that short baseline neutrino experiments are rich environments in new physics searches. 1 arXiv:1404.7759v1 [hep-ex] 30 Apr 2014Across the particle physics community, the mysterious periodic-table-like nature of the Standard Model (SM) is motivating searches for new particles, new forces and new properties of the particles that are known. The neutrino sector is proving a rich environment for these searches. Having already found one beyond-Standard-Model (BSM) effect-neutrino mass [1]-a series of experiments are pursuing other potential signals. Unlike the case of three-neutrino oscillation measurements within νSM, many of these searches are pursued over short baselines, from a few meters to approximately a kilometer. The Mini Booster Neutrino Experiment (MiniBooNE) at Fermi National Accelerator Laboratory (Fermilab) is an excellent example, having contributed substantially to BSM studies.This review describes the MiniBooNE BSM program. We begin by describing the experiment. This is followed by a discussion of the MiniBooNE cross section studies, which have been essential input to both the BSM searches within this experiment, and also to other experiments, including T2K most recently [2]. We then describe three searches: the sterile neutrino search which motivated the experiment, Lorentz violation searches which set the first limits on five neutrino sector parameters, and the search for dark sector particles which is now being pursued with a re-configured beam. MiniBooNE (running from 2002MiniBooNE (running from -2012 was originally designed to test the LSND signal [3]. In the LSND experiment, low energy (0 to 53 MeV) muon anti-neutrinos were produced by pion decayat-rest (DAR), and were detected by the liquid-scintillator-based LSND detector at 31 m from the target. The observed 3.8σ excess ofν e candidate events could be interpreted as oscillations in the ∆m 2 ∼ 1 eV 2 region within a simple two massive neutrino oscillation hypothesis, where the oscillation proba...

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Energy reconstruction in quasielastic scattering in the MiniBooNE and T2K experiments

Cited by 9 publications

References 0 publications

Assessing the role of nuclear effects in the interpretation of the MiniBooNE low-energy anomaly

Assessing the role of nuclear effects in the interpretation of the MiniBooNE low-energy anomaly

Electron Neutrino Charged-Current Quasielastic Scattering in the MINERvA Experiment

Beyond Standard Model Searches in the MiniBooNE Experiment

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