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Final results on nu_mu to nu_tau oscillation from the CHORUS experiment

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arxiv 0710.3361 v1 pith:5K3AFUUM submitted 2007-10-17 hep-ex

classification hep-ex
keywords chorusdatawereanalyseddetectorselectronicemulsionexperiment
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abstract

The final oscillation analysis of the complete set of data collected by CHORUS in the years 1994--1997 is presented. Reconstruction algorithms of data extracted by electronic detectors were improved and the data recorded in the emulsion target were analysed by new automated scanning systems, allowing the use of a new method for event reconstruction in emulsion. CHORUS has applied these new techniques to the sample of 1996--1997 events for which no muons were observed in the electronic detectors. Combining the new sample with the data analysed in previous papers, the overall sensitivity of the experiment to the $\nu_\tau$ appearance is thus improved. In a two-neutrino mixing scheme, a 90% C.L. upper limit of $\sin^2 2\theta_{\mu\tau} < 4.4 \times 10^{-4}$ is set for large $\Delta m^2$, improving by a factor 1.5 the previously published CHORUS result.

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Cited by 2 Pith papers

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score. Full citation record

  1. Detecting and Studying High-Energy Collider Neutrinos with FASER at the LHC

    hep-ex 2019-08 accept novelty 7.0 of 10

    FASERν is predicted to detect thousands of collider neutrinos at the LHC and measure their cross sections at TeV energies, closing a gap in neutrino measurements.

  2. Reconstruction and Performance Evaluation of FASER's Emulsion Detector at the LHC

    physics.ins-det 2025-04 conditional novelty 5.0 of 10

    FASER's emulsion detector reconstructs charged tracks with 0.3 µm alignment precision and >85% single-film efficiency, validating the detector for TeV neutrino physics.

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