Search for neutral weakly interacting massive particles in the Fermilab Tevatron wideband neutrino beam

Abolins, M.; Brock, R.; Cobau, W. G.; Hatcher, R.; Owen, D.; Perkins, G. J.; Tartaglia, M.; Weerts, H.; Bogert, D.; Fuess, S.; Koizumi, G.; Stutte, L.; Friedman, J.I.; Kendall, H.W.; Kistiakowsky, V.; Lyons, T.; Osborne, L. S.; Pitt, R.; Rosenson, L.; Schneekloth, U.; Strongin, B.; Taylor, F. Ë.; Walker, J.K.; White, A.; Womersley, W. J.

doi:10.1103/physrevd.52.6

Cited by 45 publications

(37 citation statements)

References 10 publications

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“…The current 90% C.L. limits from some of these beam dump experiments, such as PS191 [191], NA3 [192], CHARM [193][194][195], IHEP-JINR [196], BEBC [197], FMMF [198], NuTeV [199] and NOMAD [200] are shown in figures 3-5. It may be noted here that the PS191 [191] and CHARM [193] limits shown here assume that the sterile neutrinos interact only via CC.…”

Section: Beam Dump Experimentsmentioning

confidence: 99%

Neutrinos and collider physics

2015

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We review the collider phenomenology of neutrino physics and the synergetic aspects at energy, intensity and cosmic frontiers to test the new physics behind the neutrino mass mechanism. In particular, we focus on seesaw models within the minimal setup as well as with extended gauge and/or Higgs sectors, and on supersymmetric neutrino mass models with seesaw mechanism and with Rparity violation. In the simplest type-I seesaw scenario with sterile neutrinos, we summarize and update the current experimental constraints on the sterile neutrino mass and its mixing with the active neutrinos. We also discuss the future experimental prospects of testing the seesaw mechanism at colliders and in related low-energy searches for rare processes, such as lepton flavor violation and neutrinoless double beta decay. The implications of the discovery of lepton number violation at the Large Hadron Collider for leptogenesis are also studied.

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Section: Beam Dump Experimentsmentioning

confidence: 99%

Neutrinos and collider physics

2015

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“…Other bounds of this type can be found in refs. [62][63][64][65][66][67][68] as well as collider ones, from LHCb [69], ATLAS [70], CMS [71,72], BELLE [73] (see also ref. [74]).…”

Section: Contentsmentioning

confidence: 99%

Heavy Neutral Leptons from low-scale seesaws at the DUNE Near Detector

Ballett

Boschi

Pascoli

2020

J. High Energ. Phys.

107

142

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Heavy nearly-sterile neutrinos are a common ingredient in extensions of the Standard Model which aim to explain neutrino masses, like for instance in Type I seesaw models, or one of its variants. If the scale of the new Heavy Neutral Leptons (HNLs) is sufficiently low, observable signatures can arise in a range of current and upcoming experiments, from the LHC to neutrino experiments. In this article, we discuss the phenomenology of sterile neutrinos in the MeV to GeV mass range, focusing on their decays. We embed our discussion in a realistic mass model and consider the resulting implications. We focus in particular on the impact on the signal of the strong polarisation effects in the beam for Majorana and (pseudo-)Dirac states, providing formulae to incorporate these in both production and decay. We study how the Near Detector of the upcoming Deep Underground Neutrino Experiment can constrain HNL states by searching for their decay products inside the detector. We conduct a Monte Carlo background analysis for the most promising signatures, incorporating the detector's particle identification capabilities, and estimate the experimental sensitivity of DUNE to these particles. We also present an estimate of the ν τ -derived HNL flux at DUNE, currently missing in the literature, which allows us to discuss searches for HNLs at higher masses.The evidence for three neutrino flavour oscillation is well established [1,2] and can be accounted for only if neutrino mass splittings are non zero [3]. This implies that neutrinos are massive and mix, forcing to consider extensions of the Standard Model (SM) to explain their origin. A simple means of doing so is to introduce the right-handed counterpart of SM neutrinos, which are singlet with respect to all SM gauge symmetries. The Lagrangian includes a Yukawa coupling between these sterile states, the Higgs boson and the leptonic doublet, which generates Dirac mass-terms below the scale of Electroweak Symmetry Breaking (EWSB), and Majorana mass terms for the new singlet states. On diagonalisation of the resulting neutrino mass matrix, the heavy neutrino states, commonly known as nearlysterile neutrinos or Heavy Neutral Leptons (HNLs) in experimental contexts, remain mainly in the sterile neutrino direction and have sub-weak interactions suppressed by elements of the extended Pontecorvo-Maki-Nakagawa-Sakata (PMNS) mixing matrix.These states have been connected to a vast range of phenomenological behaviours and even to cosmological implications (for a recent review on sterile neutrinos, see e.g. ref.[4]). For instance, nearly-sterile neutrinos in the keV region are viable warm Dark Matter candidates (see e.g. ref.[5]), whereas heavier HNLs could play a role in leptogenesis [6][7][8][9][10][11][12][13][14][15][16][17][18]. So far, some possible hints in favour of heavy neutrinos have emerged in neutrino appearance oscillation experiments, specifically LSND [19] and MiniBooNE [20][21][22] but are disfavoured by disappearance experiments [23][24][25], unless non-standard effects ar...

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“…Next, it may be recalled that quite restrictive upper limits on mixings of mainly sterile heavy neutrinos have also been obtained from time-of-flight searches [148,149] and for neutrino decays [13,38,[150][151][152]. A recent search of this type is [153].…”

Section: B Limit On Exotic µ Decay Modesmentioning

confidence: 99%

Constraints on sterile neutrinos in the MeV to GeV mass range

2019

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A detailed discussion is given of the analysis of recent data to obtain improved upper bounds on the couplings |Ue4| 2 and |Uµ4| 2 for a mainly sterile neutrino mass eigenstate ν4. Using the excellent agreement among Ft values for superallowed nuclear beta decay, an improved upper limit is derived for emission of a ν4. The agreement of the ratios of branching ratios R (π) e/µ = BR(π + → e + νe)/BR(π + → µ + νµ), R (K) e/µ , R (Ds) e/τ , R (Ds) µ/τ , and R (D)e/τ , and the branching ratios BR(B + → e + νe) and BR(B + → µ + νµ) decays with predictions of the Standard Model, is utilized to derive new constraints on ν4 emission covering the ν4 mass range from MeV to GeV. We also discuss constraints from peak search experiments probing for emission of a ν4 via lepton mixing, as well as constraints from pion beta decay, CKM unitarity, µ decay, leptonic τ decay, and other experimental inputs.

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Search for neutral weakly interacting massive particles in the Fermilab Tevatron wideband neutrino beam

Cited by 45 publications

References 10 publications

Neutrinos and collider physics

Neutrinos and collider physics

Heavy Neutral Leptons from low-scale seesaws at the DUNE Near Detector

Constraints on sterile neutrinos in the MeV to GeV mass range

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