TL;DR: The DONUT experiment has analyzed 203 neutrino interactions recorded in nuclear emulsion targets as discussed by the authors, with an estimated background of 0.34 events, consistent with the Standard Model expectation.
TL;DR: An account of the discovery of hypernuclei some fifty years ago together with a review of the early work on hypernuclear physics mainly performed using the photographic emulsion technique is given in this article.
TL;DR: In this article, a new method of momentum measurement of charged particles through multiple Coulomb scattering (MCS) in the OPERA lead-emulsion target is presented, based on precise measurements of track angular deviations carried out thanks to the very high resolution of nuclear emulsions.
Abstract: A new method of momentum measurement of charged particles through multiple Coulomb scattering (MCS) in the OPERA lead-emulsion target is presented. It is based on precise measurements of track angular deviations carried out thanks to the very high resolution of nuclear emulsions. The algorithm has been tested with Monte Carlo pions. The results are found to describe within the expected uncertainties the data obtained from test beams. We also present a comparison of muon momenta evaluated through MCS in the OPERA lead-emulsion target with those determined by the electronic detectors for neutrino-charged current interaction events. The two independent measurements agree within the experimental uncertainties, and the results validate the algorithm developed for the emulsion detector of OPERA.
TL;DR: In this paper, the mean free paths in nuclear emulsion of relativistic projectile fragments, 3 < or =Z< or =26 emitted from two heavy-ion beams of /sup 40/Ar and /sup 56/Fe at an energy of approx.2 GeV/nucleon have been measured and they gave evidence for anomalously short mean free path in the first 2--3 cm after their production than at larger distances.
Abstract: The interaction mean free paths in nuclear emulsion of relativistic projectile fragments, 3< or =Z< or =26 emitted from two heavy-ion beams of /sup 40/Ar and /sup 56/Fe at an energy of approx.2 GeV/nucleon have been measured and they gave evidence for anomalously short mean free paths in the first 2--3 cm after their production than at larger distances. Some characteristics of the primary and the secondary interactions connected with the anomaly are presented.