Constraints on new physics with (anti)neutrino-nucleon scattering data

Oleksandr Tomalak; Minerba Betancourt; Kaushik Borah; Richard J. Hill; Thomas Junk

doi:10.1016/j.physletb.2024.138718

Constraints on new physics with (anti)neutrino-nucleon scattering data

Oleksandr Tomalak, Minerba Betancourt, Kaushik Borah, Richard J. Hill, Thomas Junk

Physics And Astronomy

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Abstract

New physics contributions to the (anti)neutrino-nucleon elastic scattering process can be constrained by precision measurements, with controlled Standard Model uncertainties. In a large class of new physics models, interactions involving charged leptons of different flavor can be related, and the large muon flavor component of accelerator neutrino beams can mitigate the lepton mass suppression that occurs in other low-energy measurements. We employ the recent high-statistics measurement of the cross section for ν¯_μp→μ⁺n scattering on the hydrogen atom by MINERvA to place new confidence intervals on tensor and scalar neutrino-nucleon interactions: ReC_T=−1₋₁₃⁺¹⁴×10⁻⁴, |ImC_T|≤1.3×10⁻³, and |ImC_S|=45₋₁₉⁺¹³×10⁻³. These results represent a reduction in uncertainty by a factor of 2.1, 3.1, and 1.2, respectively, compared to existing constraints from precision beta decay.

Original language	English
Article number	138718
Journal	Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
Volume	854
DOIs	https://doi.org/10.1016/j.physletb.2024.138718
State	Published - Jul 2024

Bibliographical note

Publisher Copyright:
© 2024 The Author(s)

Funding

O.T. acknowledges useful conversations with Tanmoy Bhattacharya and Rajan Gupta regarding lattice-QCD results and MINERvA data, with Kevin McFarland regarding the MINERvA data, and with Emanuele Mereghetti regarding up-to-date SMEFT constraints. This work is supported by the US Department of Energy through the Los Alamos National Laboratory and by LANL's Laboratory Directed Research and Development (LDRD/PRD) program under projects 20210968PRD4, 20210190ER, and 20240127ER. Los Alamos National Laboratory is operated by Triad National Security, LLC, for the National Nuclear Security Administration of U.S. Department of Energy (Contract No. 89233218CNA000001). This work was supported by the U.S. Department of Energy, Office of Science, Office of High Energy Physics, under Award DE-SC0019095. R.J.H. acknowledges support from a Fermilab Intensity Frontier Fellowship. K.B. acknowledges support from the Visiting Scholars Award Program of the Universities Research Association and the Fermilab Neutrino Physics Center Fellowship Program. Fermilab is operated by Fermi Research Alliance, LLC under Contract No. DE-AC02-07CH11359 with the United States Department of Energy. FeynCalc[103,104], Mathematica [105], and MINUIT [106] were extremely useful in this work.

Funders	Funder number
National Nuclear Security Administration
Visiting Scholars Award Program of the Universities Research Association
Fermilab Neutrino Physics Center
Los Alamos National Laboratory
Laboratory Directed Research and Development
Office of Science Programs
Institute for High Energy Physics	DE-SC0019095
Institute for High Energy Physics
Fermi Research Alliance, LLC	DE-AC02-07CH11359
U.S. Department of Energy EPSCoR	103,104, 89233218CNA000001
U.S. Department of Energy EPSCoR
PRD	20210968PRD4, 20210190ER, 20240127ER

ASJC Scopus subject areas

Nuclear and High Energy Physics

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10.1016/j.physletb.2024.138718

Cite this

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abstract = "New physics contributions to the (anti)neutrino-nucleon elastic scattering process can be constrained by precision measurements, with controlled Standard Model uncertainties. In a large class of new physics models, interactions involving charged leptons of different flavor can be related, and the large muon flavor component of accelerator neutrino beams can mitigate the lepton mass suppression that occurs in other low-energy measurements. We employ the recent high-statistics measurement of the cross section for ν¯μp→μ+n scattering on the hydrogen atom by MINERvA to place new confidence intervals on tensor and scalar neutrino-nucleon interactions: ReCT=−1−13+14×10−4, |ImCT|≤1.3×10−3, and |ImCS|=45−19+13×10−3. These results represent a reduction in uncertainty by a factor of 2.1, 3.1, and 1.2, respectively, compared to existing constraints from precision beta decay.",

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Constraints on new physics with (anti)neutrino-nucleon scattering data

Abstract

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