Author/Authors :
Kodama، نويسنده , , N. Saoulidou، نويسنده , , N and Tzanakos، نويسنده , , G and Baller، نويسنده , , B and Lundberg، نويسنده , , R. Rameika، نويسنده , , R and Song، نويسنده , , J.S. and Yoon، نويسنده , , C.S. and Chung، نويسنده , , S.H and Aoki، نويسنده , , S and Hara، نويسنده , , T and Erickson، نويسنده , , C and Heller، نويسنده , , K and Schwienhorst، نويسنده , , R and Sielaff، نويسنده , , J and Trammell، نويسنده , , J and Hoshino، نويسنده , , K and ، نويسنده ,
Abstract :
The DONUT experiment used an emulsion/counter-hybrid-detector, which succeeded in detecting tau–neutrino charged-current interactions. A new method of emulsion analysis, NETSCAN, was used to locate neutrino events and detect tau decays. It is based on a fully automated emulsion readout system (Ultra Track Selector) developed at Nagoya University.
hieved plate-to-plate alignment accuracy of ∼0.2 μm over an area of 2.6 mm×2.6 mm permitted an efficient and systematic tau decay search using emulsion data. Moreover, this accuracy allowed measurement of particle momenta by multiple Coulomb scattering, and contributed to the efficient background rejection for the ντ candidates. This paper describes details of our emulsion analysis methods.
Keywords :
Automatic scanning , NETSCAN , Tau neutrino , Nuclear emulsion
