Thrust distribution and decays of the ϒ bound states

Autor: K. Han, G. Levman, W. Metcalf, V. Sreedhar, G. Mageras, R. L. Imlay, M. Sivertz, L. J. Spencer, F. Pauss, J. K. Yoh, S. W. Herb, R. D. Schamberger, H. Vogel, Pm Tuts, E. Lorenz, T. Böhringer, G. J. Blanar, G. Eigen, D. Peterson, Juliet Lee-Franzini, G. Giannini, E. Rice, H. Dietl, Paolo Franzini
Rok vydání: 1982
Předmět:
Zdroj: Physics Letters B. 114:277-281
ISSN: 0370-2693
DOI: 10.1016/0370-2693(82)90495-6
Popis: We have studied the topologies of hadronic events in e + e - annihilation data taken in the region of the upsilon resonances with the non-magnetic CUSB detectors at CESR. Using a thrust-like variable we compare the decay of ϒ, ϒ′ and ϒPrime; find for ϒ″ a significant excess of high thrust events, which we interpret as evidence for electric dipole transitions.
Databáze: OpenAIRE