Abstract
A study is presented of μe events from an exposure of BEBC, filed with an heavyH 2/Ne mixture, to a wide band antineutrino beam at the CERN SPS. The promptμ + e − rate, based on the observation of 45 events withp μ>4 GeV/c andp e>0.8 GeV/c, is found to be 0.31±0.05±0.02%, in agreement with previous determinations made on much smaller statistics. The differential kinematical variables characterizing the events and the content of strange particles are as expected for the production of charmed hadrons which subsequently decay semi-leptonically. An upper limit of 2.0±10−4 at 90% C.L. is given for the production rate of promptμ + e + events. No evidence is found for a significant production of Beauty hadrons.
Similar content being viewed by others
References
H. Deden et al.: Phys. Lett.58 B, 361 (1975);67 B, 474 (1977); J. Blietschau et al.: Phys Lett.60B, 207 (1976)
J. von Krogh et al.: Phys. Rev. Lett.36, 710 (1976)
P. Bosetti et al.: Phys. Rev. Lett.38, 1248 (1977)
C. Baltay et al.: Phys. Rev. Lett.39, 62 (1977); Proceedings of the 1979 JINR-CERN School of Physics-Dobogoko-Vol. 1, p. 64
H.C. Ballagh et al.: Phys. Rev. Lett.39, 1650 (1977)
P. Bosetti et al.: Phys. Lett.73B, 380 (1978)
O. Erriquez et al.: Phys. Lett.81 B, 227 (1978)
J.P. Berge et al.: Phys. Lett.81 B, 89 (1979)
D.S. Baranov et al.: Phys. Lett.81 B, 261 (1979); Sov. J. Nucl. Phys.29, 622 (1979)
H.C. Ballagh et al.: Phys. Rev.24 D, 7 (1981)
V.V. Ammosov et al.: Phys. Rev.106 B, 151 (1981)
A. Haatft et al.: CERN preprint EP 83-16; to be published in Phys. Lett.
A. Benvenuti et al.: Phys. Rev. Lett.34, 419 (1975);35, 1199 (1975);35, 1203 (1975);35, 1249 (1975);41, 1204 (1978)
A. Benvenuti et al.: Phys. Rev. Lett.41, 725 (1978)
B.C. Barish et al.: Phys. Rev. Lett.36, 939 (1976);39, 981 (1977)
M. Holder et al.: Phys. Lett.69 B, 377 (1977)
M. Holder et al.: Phys. Lett.70 B, 396 (1977)
A.E. Asratyan et al.: Phys. Lett.71 B, 439 (1977)
J.G.H. de Groot et al.: Phys. Lett.86 B, 103 (1979)
T. Trinko et al.: Phys. Rev.23 D, 1889 (1981)
K. Nishikawa et al.: Phys. Rev. Lett.46, 1555 (1981)
M. Jonker et al.: Phys. Lett.107 B, 241 (1981)
H. Abramovicz et al.: Z. Phys. C-Particles and Fields15, 19 (1982)
N. Armenise et al.: Phys. Lett.86 B, 115 (1979)
H.C. Ballagh et al.: Phys. Rev.21 D, 569 (1980)
N. Armenise et al.: Phys. Lett.94 B, 527 (1980)
A.G. Tenner et al.: Proceedings of the 1981 International Conference on Neutrino Physics and Astrophysics-Maui, Hawaii-Vol.2, p. 109 (1981)
H.E. Fisk: Proceedings of the International Symposium on Lepton and Photon Interactions at High Energies-Bonn, p. 703 (1981); V. Barger: Proceedings of the 21st International Conference on High Energy Physics, Paris, p. C3–32 (1982)
O. Erriquez et al.: Phys. Lett.102 B, 73 (1981)
H.G. Heilmann: Bonn Internal Report 1978 WA21-int 1
P. Mazzanti et al.: Phys. Lett.98 B, 360 (1981)
R.D. Field, R.P. Feymann: Phys. Rev.15 D, 2590 (1977)
R.M. Barnett: Phys. Rev. Lett.36 1163 (1976)
A. Bodek, J.L. Ritchie: Phys. Rev.23 D, 1070 (1981);24 D, 1400 (1981)
T. Sjostrand: LUTP preprint 80-03
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
Marage, P., Gerbier, G., Guy, J. et al. Study of μe events produced in antineutrino interactions. Z. Phys. C - Particles and Fields 21, 307–313 (1984). https://doi.org/10.1007/BF01581593
Received:
Issue Date:
DOI: https://doi.org/10.1007/BF01581593