Neutrino Production of Lepton Pairs. I

Koike, Kazuo; Konuma, Michiji; Kurata, K.; Sugano, K.

doi:10.1143/ptp.46.1150

Cited by 21 publications

(14 citation statements)

References 5 publications

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“…Even if the weak bosons were not produced directly due to, e.g., their large masses, their existence could make the trident production rate different from that of the pure V-A theory (e.g., Refs. [63][64][65][75][76][77][78][79][80])…”

Section: Trident Productionmentioning

confidence: 99%

Neutrino-nucleus cross sections for W -boson and trident production

Zhou

Beacom

2020

Phys. Rev. D

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The physics of neutrino-nucleus cross sections is a critical probe of the Standard Model and beyond. A precise understanding is also needed to accurately deduce astrophysical neutrino spectra. At energies above ∼ 5 GeV, the cross section is dominated by deep inelastic scattering, mediated by weak bosons. In addition, there are subdominant processes where the hadronic coupling is through virtual photons, γ * : (on-shell) W -boson production (e.g., where the underlying interaction is ν +γ * → − +W + ) and trident production (e.g., where it is ν +γ * → ν + − 1 + + 2 ). These processes become increasingly relevant at TeV-PeV energies. We undertake the first systematic approach to these processes (and those with hadronic couplings through virtual W and Z bosons), treating them together, avoiding common approximations, considering all neutrino flavors and final states, and covering the energy range 10 -10 8 GeV. In particular, we present the first complete calculation of W -boson production and the first calculation of trident production at TeV-PeV energies. When we use the same assumptions as in prior work, we recover all of their major results. In a companion paper [1], we show that these processes should be taken into account for IceCube-Gen2.

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Section: Trident Productionmentioning

confidence: 99%

Neutrino-nucleus cross sections for W -boson and trident production

Zhou

Beacom

2020

Phys. Rev. D

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“…Neutrino trident production is a weak process by which a neutrino, scattering off the Coulomb field of a heavy nucleus, generates a pair of charged leptons [1][2][3][4][5][6][7]. Measurements of muonic neutrino tridents, ν µ → ν µ µ + µ − , were performed at the CHARM-II [8], CCFR [9] and NuTeV [10] experiments: [11][12][13][14], will offer excellent prospects to improve these measurements [15][16][17][18].…”

Section: Introductionmentioning

confidence: 99%

Neutrino tridents at DUNE

et al. 2019

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The DUNE near detector will collect an unprecedented large number of neutrino interactions, allowing the precise measurement of rare processes such as neutrino trident production, i.e. the generation of a lepton-antilepton pair through the scattering of a neutrino off a heavy nucleus. The event rate of this process is a powerful probe to a well-motivated parameter space of new physics beyond the Standard Model. In this paper, we perform a detailed study of the sensitivity of the DUNE near detector to neutrino tridents. We provide predictions for the Standard Model cross sections and corresponding event rates at the near detector for the ν µ → ν µ µ + µ − , ν µ → ν µ e + e − and ν µ → ν e e + µ − trident interactions (and the corresponding antineutrino modes), discussing their uncertainties. We analyze all relevant backgrounds, utilize a Geant4-based simulation of the DUNE-near detector liquid argon TPC (the official DUNE simulation at the time of writing this paper), and identify a set of selection cuts that would allow the DUNE near detector to measure the ν µ → ν µ µ + µ − cross section with a ∼ 40% accuracy after running in neutrino and anti-neutrino modes for ∼3 years each. We show that this measurement would be highly sensitive to new physics, and, in particular, we find that the parameter space of models with gauged L µ − L τ that can explain the (g − 2) µ anomaly could be covered with large significance. As a byproduct, a new Monte Carlo tool to generate neutrino trident events is made publicly available. *

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“…The intriguing possibility that neutrinos may be charged under new gauge symmetries beyond the SM SU (3) c × SU (2) L × U (1) Y , and interact with the corresponding new gauge bosons can be tested with unprecedented precision by DUNE through ND measurements of neutrino-induced di-lepton production in the Coulomb field of a heavy nucleus, also known as neutrino trident interactions [320,321,322,323,324,325,326]. Although this process is extremely rare (SM rates are suppressed by a factor of 10 −5 − 10 −7 with respect to CC interactions), the CHARM-II collaboration and the CCFR collaboration both reported detection of several trident events (∼ 40 events at CCFR) and quoted cross-sections in good agreement with the SM predictions.…”

Section: Searches For Neutrino Trident Productionmentioning

confidence: 99%

“…Neutrino trident production is a weak process in which a neutrino, scattering off the Coulomb field of a heavy nucleus, generates a pair of charged leptons, as shown in Fig. 8.12 [320,321,322,323,324,325,326]. Measurements of muonic neutrino tridents (ν µ → ν µ µ + µ − ) were carried out at the CHARM-II [433], CCFR [434] and NuTeV [435] experiments:…”

Section: Search For Neutrino Tridents At the Near Detectormentioning

confidence: 99%