1. On the origin of inclusive electron events in $e^+ e^-$ annihilation between 3.6-GeV and 5.2-GeV
- Author
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Brandelik, R., Braunschweig, W., Gadermann, E., Hultschig, H., Joos, P., Koch, W., Kotz, U., Krehbiel, H., Kreinick, D., Lynch, H. L., McNeely, W. A., Moffeit, K. C., Martyn, H.-U., Notz, D., Rusch, R., Schliwa, M., Wiik, B. H., Wolf, G., Grindhammer, Guenter, Ludwig, J., Mess, K. H., Petersen, A., Poelz, G., Sander, H. G., Ringel, J., Romer, O., Sauerberg, K., Schmueser, Peter, de Boer, W., Buschhorn, G., Fues, W., von Gagern, C., Gunderson, B., Kotthaus, R., Schmitz, D., Lierl, H., Oberlack, H., Orito, S., Suda, T., Totsuka, Y., Yamada, S., DASP Collaboration, Sturm, W., Wallraff, W., Cords, D., Felst, R., and Fries, R.
- Subjects
ELECTRON [FINAL STATE] ,K: MULTIPLE PRODUCTION ,+ELECTRON+ANYTHING%22">ELECTRON POSITRON --> ELECTRON ANYTHING ,MULTIPLE PRODUCTION: PI ,RATIO [MULTIPLE PRODUCTION] ,MULTIPLE PRODUCTION: K ,DASP [MAGNETIC DETECTOR] ,ddc:530 ,K [MULTIPLE PRODUCTION] ,COLLIDING BEAMS: ELECTRON POSITRON ,EXPERIMENTAL RESULTS ,ELECTRON: FINAL STATE ,FINAL STATE [ELECTRON] ,SEMILEPTONIC DECAY [CHARMED PARTICLE] ,DESY DORIS STOR ,3.6-5.2 GEV-CMS ,MULTIPLICITY [ELECTRON] ,MULTIPLE PRODUCTION [K] ,ELECTRON POSITRON: INCLUSIVE REACTION ,PI: MULTIPLE PRODUCTION ,COLLIDING BEAMS [ELECTRON POSITRON] ,ANNIHILATION: ELECTRON POSITRON ,ELECTRON POSITRON [COLLIDING BEAMS] ,INCLUSIVE REACTION [ELECTRON POSITRON] ,FINAL STATE: ELECTRON ,ELECTRON POSITRON: COLLIDING BEAMS ,CHARMED PARTICLE: SEMILEPTONIC DECAY ,MULTIPLE PRODUCTION: RATIO ,ELECTRON POSITRON [ANNIHILATION] ,PI [MULTIPLE PRODUCTION] ,ELECTRON: MULTIPLICITY ,ANNIHILATION [ELECTRON POSITRON] ,MULTIPLE PRODUCTION [PI] ,High Energy Physics::Experiment ,MAGNETIC DETECTOR: DASP ,ELECTRON POSITRON: ANNIHILATION - Abstract
(1977). doi:10.1016/0370-2693(77)90360-4, The multiplicity distribution of inclusive electron events above 4 GeV cm energy shows two distinct classes of events: two prong no photon and high multiplicity events. If the high multiplicity events are attributed to the semi-leptonic decay of charmed particles the two prong no photon events must come from the weak decay of a different type of particle. The charged K to π ratio was measured for these events. The average number of charged kaons is 0.07 ± 0.06 per two prong event and 0.90 ± 0.18 per multiprong event. Thus the weak current responsible for the low multiplicity events has a small coupling to strange particles.
- Published
- 1977