SEARCH FOR MUON TO ELECTRON NEUTRINO OSCILLATIONS

Date

1994-12-01

Author

VILAIN, P
WILQUET, G
BEYER, R
FLEGEL, W
MOUTHUY, T
OVERAS, H
PANMAN, J
ROZANOV, A
WINTER, K
ZACEK, G
ZACEK, V
BUSSER, FW
FOOS, C
GERLAND, L
LAYDA, T
NIEBERGALL, F
RADEL, G
STAHELIN, P
VOSS, T
FAVART, D
GREGOIRE, G
KNOOPS, E
LEMAITRE, V
GORBUNOV, P
GRIGORIEV, E
KHOVANSKY, V
MASLENNIKOV, A
LIPPICH, W
NATHANIEL, A
STAUDE, A
VOGT, J
COCCO, AG
EREDITATO, A
FIORILLO, G
MARCHETTISTASI, F
PALLADINO, V
STROLIN, P
CAPONE, A
DEPEDIS, D
DORE, U
FRENKELRAMBALDI, A
LOVERRE, PF
MACINA, D
PIREDDA, G
SANTACESARIA, R
DICAPUA, E
RICCIARDI, S
SAITTA, B
AKKUS, B
ARIK, E
SERINZEYREK, M
SEVER, R
TOLUN, P
Zeyrek, Mehmet Tevfik
HILLER, K
NAHNHAUER, R
ROLOFF, HE

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A search for upsilon(mu) --> upsilon(e) and ($) over bar upsilon(mu) --> ($) over bar upsilon(e) oscillations has been carried out with the CHARM LI detector exposed to the CERN wide band neutrino beam. The data were collected over five years, alternating beams mainly composed of muon-neutrinos and muon-antineutrinos. The number of interactions of upsilon(e) and ($) over bar upsilon(e) observed is comparable with the number of events expected from flux calculations. For large squared mass differences the upper limits obtained on the mixing angle are sin(2)2 theta < 9.4.10(-3) for upsilon(mu) oscillating to upsilon(e) and sin(2)2 theta < 4.8.10(-3) for ($) over bar upsilon(mu) to ($) over bar upsilon(e) at the 90% confidence level. Combining neutrino and antineutrino data the upper limit is 5.6.10(-3).

Subject Keywords

Scattering, Detector

URI

https://hdl.handle.net/11511/52941

Journal

ZEITSCHRIFT FUR PHYSIK C-PARTICLES AND FIELDS

Collections

Department of Physics, Article

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Citation Formats

P. VILAIN et al., “SEARCH FOR MUON TO ELECTRON NEUTRINO OSCILLATIONS,” ZEITSCHRIFT FUR PHYSIK C-PARTICLES AND FIELDS, pp. 539–544, 1994, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/52941.