A study of double vertex events in the neutrino-nucleon interactions

Barbaro, P. de; Bodek, A.; Budd, H. S.; Sakumoto, W. K.; Bachmann, K.T.; Blair, R.E.; Foudas, C.; Lefmann, W.C.; Leung, W.C.; Mishra, S. R.; Quintas, P. Z.; Rabinowitz, S.A.; Sciulli, F.; Seligman, W.; Shaevitz, M. H.; Merritt, F. S.; Oreglia, M. J.; Schellman, H.; Schumm, B. A.; Bernstein, R. H.; Borcherding, F.; Lamm, M. J.; Marsh, W.; Yovanovitch, D.; Sandler, P.H.; Smith, W. H.

doi:10.1063/1.43269

Cited by 1 publication

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“…We also point out some less-often discussed anomalies in existing data which are compatible with the predictions of our model. These include a mild excess of monophoton events at BaBar [44], the anomalous ν e -appearance observed by past accelerator experiments, such as PS-191 [45] and E-816 [46], and the double neutral vertex events in CCFR [47,48]. We show how these results emerge within a coherent picture and that they are, in fact, highly correlated when interpreted under our hypothesis.…”

Section: Introductionsupporting

confidence: 53%

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A Dark Seesaw Solution to Low Energy Anomalies: MiniBooNE, the muon $(g-2)$, and BaBar

Abdullahi,

Hostert,

Pascoli

2020

Preprint

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A recent update from MiniBooNE has strengthened the observed 4.8σ excess of e-like events. Motivated by this and other notable deviations from standard model predictions, such as the muon (g − 2), we propose a solution to low energy anomalies through a dark neutrino sector. The model is renormalizable and can also explain light neutrino masses with an anomaly-free and dark U (1) gauge symmetry broken at the GeV scale. Large kinetic mixing leads to s-channel production of heavy neutral leptons at e + e − colliders, where we point out and explain a 2σ excess observed in the BaBar monophoton data. Our model is also compatible with anomalous e-like events seen at old accelerator experiments, as well as with an excess of double vertex signatures observed at CCFR.

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Section: Introductionsupporting

confidence: 53%

“…We also note an intriguing excess reported by CCFR in the search for HNLs produced in scattering [47,48,103,104]. The experiment saw evidence for double-vertex events with 9 NC/NC events over an estimated overlay background of 3±0.2 (stat.…”

Section: Low Energy Anomaliesmentioning

confidence: 55%