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Article
Report number CERN-D-PH-II-PHYS-75-49 ; CERN-EP-PHYS-76-31
Title Observation of muon-neutrino reactions producing a positron and a strange particle
Author(s) Blietschau, J ; Deden, H ; Hasert, F J ; Krenz, W ; Lanske, D ; Morfín, J G ; Pohl, M ; Weerts, H ; Welch, L ; Bertrand-Coremans, G H ; Mulkens, H ; Sacton, J ; Van Doninck, W K ; Cundy, Donald C ; Danilchenko, I A ; Haidt, B ; Lloret, A ; Matteuzzi, C ; Musset, P ; Myklebost, K ; Pattison, J B M ; Perkins, Donald Hill ; Pittuck, D ; Romano, F ; Wachsmuth, H W ; Blondel, A ; Brisson, V ; Degrange, B ; François, T ; Haguenauer, Maurice ; Kluberg, L ; Nguyen-Khac, U ; Petiau, P ; Rousset, A ; van Dam, P ; Aldrovandi, A ; Bellotti, E ; Bonetti, S ; Cavalli, D ; Fiorini, Ettore ; Pullia, Antonio ; Rollier, M ; Aubert, Bernard ; Blum, D ; Chounet, L M ; Heusse, P ; Jaffré, M ; Jauneau, L ; Longuemare, C ; Lutz, A M ; Pascaud, C ; Vialle, J P ; Bullock, F W ; Jones, T W ; Michette, A G ; Myatt, G
Affiliation (TH Aachen) ; (Inst. Interuniv. Sc. Nucl. Bruxelles) ; (Aachen, Tech. Hochsch.) ; (Brussels Univ., IIHE) ; (CERN) ; (Serpukhov) ; (Oxford) ; (Ecole Polytechnique) ; (Ecole Poly. Palaiseau) ; (Milano Univ. and INFN Milano) ; (Milan Univ.) ; (INFN, Milan) ; (Orsay, LAL) ; (Orsay) ; (Univ. Coll. London) ; (Univ. Coll. London and Serpukhov) ; (III Physikalisches Inst, Tech Hochschule Aachen, Aachen, West Germany)
Publication 1976
Imprint 11 Dec 1975
Number of pages 7
In: Phys. Lett. B 60 (1976) 207-10
DOI 10.1016/0370-2693(76)90425-1
Subject category Particle Physics - Experiment ; Particle Physics - Phenomenology
Accelerator/Facility, Experiment CERN PS ; Gargamelle
Abstract In addition to one previously reported event, a second event, in which a positron is observed together with a strange particle and a negative muon, has been seen in the bubble chamber Gargamelle exposed to the CERN neutrino beam. The level of the background for this type of event is found to be very low. The data strongly indicate the existence of a new type of interaction leading to a charged lepton pair correlated with a strange particle in the final state. The interpretation of these two events in terms of production of a charmed hadron is presented. (6 refs).

Corresponding record in: KEK ; Inspire


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