Comparisons and challenges of modern neutrino scattering experiments (TENSIONS2016 report)

Betancourt, M.; Bolognesi, S.; Calcutt, J.; Castillo, R.; Cudd, A.; Dytman, S.; Eberly, B.; Furmanski, A. P.; Fine, R.; Grange, Joseph; Jiang, L.; Katori, T.; Kleckner, J.; Kleyklamp, J.; Mahn, Kendall; Messerly, B.; Perdue, G. N.; Pickering, L.; Stowell, J. P.; Sobczyk, J. T.; Suarez, Nicholas Bruno; Tanaka, Hirohisa; Tayloe, R.; Thornton, R. T.; Wilking, M. J.; Wilkinson, C.; Wret, C.; Zeller, G. P.

doi:10.1016/j.physrep.2018.08.003

Cited by 25 publications

(15 citation statements)

References 100 publications

(209 reference statements)

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“…In recent years MiniBooNE [9], MINERνA [10][11][12] and T2K [13] reported absolute CC1π þ cross sections, respectively in mineral oil, plastic scintillator and water, as a function of the relevant kinematic variables. These results show a significant disagreement, both in shape and in normalization [14,15]. The difficulty of getting simultaneous agreement between all available low-energy cross section data limits their effectiveness to constrain the uncertainty on cross section models and the corresponding systematic errors in neutrino oscillation experiments.…”

Section: Introductionmentioning

confidence: 99%

Measurement of the muon neutrino charged-current single π+ production on hydrocarbon using the T2K off-axis near detector ND280

Abe¹,

Akutsu²,

Ali³

et al. 2020

Phys. Rev. D

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We report the measurements of the single and double differential cross section of muon neutrino charged-current interactions on carbon with a single positively charged pion in the final state at the T2K offaxis near detector using 5.56 × 10 20 protons on target. The analysis uses data control samples for the background subtraction and the cross section signal, defined as a single negatively charged muon and a single positively charged pion exiting from the target nucleus, is extracted using an unfolding method. The model-dependent cross section, integrated over the T2K off-axis neutrino beam spectrum peaking at 0.6 GeV, is measured to be σ ¼ ð11.76 AE 0.44ðstatÞ AE 2.39ðsystÞÞ × 10 −40 cm 2 nucleon −1. Various differential cross sections are measured, including the first measurement of the Adler angles for single charged pion production in neutrino interactions with heavy nuclei target.

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Section: Introductionmentioning

confidence: 99%

Measurement of the muon neutrino charged-current single π+ production on hydrocarbon using the T2K off-axis near detector ND280

Abe¹,

Akutsu²,

Ali³

et al. 2020

Phys. Rev. D

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“…Using the same benchmark parameters as were used to generate the MB results, as well as all pertinent information on fluxes, efficiencies, POT etc from [53,[183][184][185][186], we find a very small excess (1-2 events, from the DIF flux only), compared to the much larger observed excess reported by LSND [53]. We note that our calculations do not include effects arising from final state interactions or other considerations like nuclear screening or multiple scattering inside the nucleus, which could play a role at the LSND energies [187]. The KARMEN experiment similarly employed a mineral oil detection medium, but was less than a third of the size of LSND.…”

Section: Results For Miniboone and Implications For Lsnd And Karmenmentioning

confidence: 57%

Understanding the MiniBooNE and the muon and electron g − 2 anomalies with a light Z′ and a second Higgs doublet

Abdallah

Gandhi

Roy

2020

J. High Energ. Phys.

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Two of the most widely studied extensions of the Standard Model (SM) are a) the addition of a new U(1) symmetry to its existing gauge groups, and b) the expansion of its scalar sector to incorporate a second Higgs doublet. We show that when combined, they allow us to understand the electron-like event excess seen in the MiniBooNE (MB) experiment as well as account for the observed anomalous values of the muon magnetic moment. A light Z′ associated with an additional U(1) coupled to baryons and to the dark sector, with flavor non-universal couplings to leptons, in conjunction with a second Higgs doublet is capable of explaining the MB excess. The Z′ obtains its mass from a dark singlet scalar, which mixes with the two Higgs doublets. Choosing benchmark parameter values, we show that $$ \mathrm{U}{(1)}_{B-3{L}_{\tau }} $$ U 1 B − 3 L τ , which is anomaly-free, and U(1)B, both provide (phenomenologically) equally good solutions to the excess. We also point out the other (anomaly-free) U(1) choices that may be possible upon fuller exploration of the parameter space. We obtain very good matches to the energy and angular distributions for neutrinos and anti-neutrinos in MB. The extended Higgs sector has two light CP-even scalars, h′ and H , and their masses and couplings are such that in principle, both contribute to help explain the MB excess as well as the present observed values of the muon and electron g − 2. We discuss the constraints on our model as well as future tests. Our work underlines the role that light scalars may play in understanding present-day low-energy anomalies. It also points to the possible existence of portals to the dark sector, i.e., a light gauge boson field (Z′) and a dark neutrino which mixes with the active neutrinos, as well as a dark sector light scalar which mixes with the extended Higgs sector.

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“…In the absence of a generally adopted and reliable model for neutrino-nucleus interactions which would be available in a wide energy range, different authors use different phenomenological models tuned to different energy ranges and detector targets. As a result, the values of the fundamental phenomenological parameters for neutrino-nucleon interactions, extracted from the experiments, strongly depend on the interaction model used in analyses, and on average energies of neutrino and antineutrino beams (see, e.g., recent reviews [40,41] and references therein). This in turn leads to uncertainties in extrapolations of the cross section models from one target material to another.…”

Section: Science With the Near Detectormentioning

confidence: 99%

Letter of interest for a neutrino beam from Protvino to KM3NeT/ORCA

et al. 2019

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The Protvino accelerator facility located in the Moscow region, Russia, is in a good position to offer a rich experimental research program in the field of neutrino physics. Of particular interest is the possibility to direct a neutrino beam from Protvino towards the KM3NeT/ORCA detector, which is currently under construction in the Mediterranean Sea 40 km offshore Toulon, France. This proposal is known as P2O. Thanks to its baseline of 2595 km, this experiment would yield an unparalleled sensitivity to matter effects in the Earth, allowing for the determination of the neutrino mass ordering with a high level of certainty after only a few years of running at a modest beam intensity of $$\approx ~90~\hbox {kW}$$≈90kW. With a prolonged exposure ($$\approx 1500\hbox { kW}\,\,\hbox {year}$$≈1500kWyear), a $$2\sigma $$2σ sensitivity to the leptonic CP-violating Dirac phase can be achieved. A second stage of the experiment, comprising a further intensity upgrade of the accelerator complex and a densified version of the ORCA detector (Super-ORCA), would allow for up to a $$6\sigma $$6σ sensitivity to CP violation and a $$10^\circ {-}17^\circ $$10∘-17∘ resolution on the CP phase after 10 years of running with a 450 kW beam, competitive with other planned experiments. The initial composition and energy spectrum of the neutrino beam would need to be monitored by a near detector, to be constructed several hundred meters downstream from the proton beam target. The same neutrino beam and near detector set-up would also allow for neutrino-nucleus cross section measurements to be performed. A short-baseline sterile neutrino search experiment would also be possible.

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Comparisons and challenges of modern neutrino scattering experiments (TENSIONS2016 report)

Cited by 25 publications

References 100 publications

Measurement of the muon neutrino charged-current single π+ production on hydrocarbon using the T2K off-axis near detector ND280

Measurement of the muon neutrino charged-current single π+ production on hydrocarbon using the T2K off-axis near detector ND280

Understanding the MiniBooNE and the muon and electron g − 2 anomalies with a light Z′ and a second Higgs doublet

Letter of interest for a neutrino beam from Protvino to KM3NeT/ORCA

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