Searches for the appearance of v(tau) using neutrino beams from muon storage rings

Citation
S. Dutta et al., Searches for the appearance of v(tau) using neutrino beams from muon storage rings, EUR PHY J C, 18(2), 2000, pp. 405-416
Citations number
44
Language
INGLESE
art.tipo
Article
Categorie Soggetti
Physics
Journal title
EUROPEAN PHYSICAL JOURNAL C
ISSN journal
1434-6044 → ACNP
Volume
18
Issue
2
Year of publication
2000
Pages
405 - 416
Database
ISI
SICI code
1434-6044(200012)18:2<405:SFTAOV>2.0.ZU;2-J
Abstract
We study the possibilities offered by muon storage rings for nu (tau) appea rance experiments in order to determine masses and mixing angles for the nu (mu) --> nu (tau) and <(<nu>)over bar>(e) --> <(<nu>)over bar>(tau) oscill ations. The dependence of tau event rates on baseline, forward peaking of d ecay neutrinos with increasing energies, and average fluxes intercepted by detectors of various sizes is discussed. It is found that the baseline leng th does not significantly affect the rates for oscillations of such magnitu des as are suggested by the current atmospheric neutrino data. Subsequently , the effects of cuts on hadronic and wrong sign leptonic modes are compute d and used to plot 90% CL contours for the parameter regions that can be ex plored in such experiments. The results show that even for modest muon beam energies, convincing coverage and verification of the Super Kamiokande par ameters is possible. In addition, a very significant enlargement of present day bounds on the mixing parameters for neutrino oscillations of all types is guaranteed by these types of searches.