Report/Internal Report

PUBDB-2017-12232

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png On the origin of inclusive electron events in $e^+ e^-$ annihilation between 3.6-GeV and 5.2-GeV

Brandelik, R. ; Braunschweig, W. ; Martyn, H.-U.Extern* ; Sander, H. G. ; Schmitz, D.Extern* ; Sturm, W. ; Wallraff, W. ; Cords, D. ; Felst, R.DESY* ; Fries, R. ; Gadermann, E. ; Hultschig, H. ; Joos, P. ; Koch, W. ; Kotz, U.DESY* ; Krehbiel, H. ; Kreinick, D. ; Lynch, H. L. ; McNeely, W. A. ; Moffeit, K. C. ; Notz, D.Extern* ; Rusch, R. ; Schliwa, M. ; Wiik, B. H. ; Wolf, G.DESY* ; Grindhammer, G. ; Ludwig, J.DESY* ; Mess, K. H. ; Petersen, A.DESY* ; Poelz, G. ; Ringel, J. ; Romer, O. ; Sauerberg, K. ; Schmueser, P.DESY* ; de Boer, W. ; Buschhorn, G. ; Fues, W. ; von Gagern, C. ; Gunderson, B. ; Kotthaus, R. ; Lierl, H.DESY* ; Oberlack, H. ; Orito, S. ; Suda, T. ; Totsuka, Y. ; Yamada, S.Extern* ; DASP Collaboration (Collaboration Author)

1977

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Please use a persistent id in citations: doi:10.3204/PUBDB-2017-12232

Report No.: DESY-77-036

Abstract: 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.

Keyword(s): ELECTRON POSITRON: ANNIHILATION ; ANNIHILATION: ELECTRON POSITRON ; ELECTRON POSITRON: COLLIDING BEAMS ; COLLIDING BEAMS: ELECTRON POSITRON ; ELECTRON POSITRON: INCLUSIVE REACTION ; ELECTRON: FINAL STATE ; FINAL STATE: ELECTRON ; ELECTRON: MULTIPLICITY ; CHARMED PARTICLE: SEMILEPTONIC DECAY ; PI: MULTIPLE PRODUCTION ; MULTIPLE PRODUCTION: PI ; K: MULTIPLE PRODUCTION ; MULTIPLE PRODUCTION: K ; MULTIPLE PRODUCTION: RATIO ; MAGNETIC DETECTOR: DASP ; EXPERIMENTAL RESULTS ; DESY DORIS STOR ; ELECTRON POSITRON --> ELECTRON ANYTHING ; 3.6-5.2 GEV-CMS

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Contributing Institute(s):

1. DESY Retrocat (DESY(-2012))

Research Program(s):

1. 899 - ohne Topic (POF3-899) (POF3-899)

Experiment(s):

1. No specific instrument

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Database coverage:

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Linked articles:

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Report/Journal Article Brandelik, R. ; Braunschweig, W. ; Martyn, H.-U. ; Sander, H. G. ; Schmitz, D. ; Sturm, W. ; Wallraff, W. ; Cords, D. ; Felst, R. ; Fries, R. ; Gadermann, E. ; Hultschig, H. ; Joos, P. ; Koch, W. ; Kötz, U. ; Krehbiel, H. ; Kreinick, D. ; Lynch, H. L. ; McNeely, W. A. ; Moffeit, K. C. ; Notz, D. ; Rüsch, R. ; Schliwa, M. ; Wilk, B. H. ; Wolf, G. ; Grindhammer, G. ; Ludwig, J. ; Mess, K. H. ; Petersen, A. ; Poelz, G. ; Ringel, J. ; Römer, O. ; Sauerberg, K. ; Schmüser, P. ; De Boer, W. ; Buschhorn, G. ; Fues, W. ; Von Gagern, C. ; Gunderson, B. ; Kotthaus, R. ; Lierl, H. ; Oberlack, H. ; Orito, S. ; Suda, T. ; Totsuka, Y. ; Yamada, S. ; DASP Collaboration (Collaboration author)DESY*
On the origin of inclusive electron events in $e^+$$e^−$ annihilation between 3.6 and 5.2 G$eV$
Physics letters / B 70(1), 125 - 131 (1977) [10.1016/0370-2693(77)90360-4]1977     Files BibTeX | EndNote: XML, Text | RIS

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