An Upper Limit for Two Jet Production in Direct $\Upsilon$ (1s) Decays - INSPIRE

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An Upper Limit for Two Jet Production in Direct $\Upsilon$ (1s) Decays

ARGUS

Collaboration

•

H. Albrecht
(
- DESY
)

Jan, 1986

12 pages

Published in:

Z.Phys.C 31 (1986) 181

DOI:

10.1007/BF01479524

Report number:

DESY-86-002

Experiments:

DESY-DORIS-ARGUS

View in:

KEK scanned document

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Abstract: (Springer)

Using the ARGUS detector at thee+e− storage ring DORIS II at DESY, we have studied the distribution of various topological quantities on the Υ(1S) resonance and in the nearby continuum. With the help of the second Fox-Wolfram moment we determine the two-jet contribution to direct Υ(1S) decays to be less than 5.3% with 95% confidence.

ELECTRON POSITRON: ANNIHILATION
ANNIHILATION: ELECTRON POSITRON
ELECTRON POSITRON: COLLIDING BEAMS
COLLIDING BEAMS: ELECTRON POSITRON
UPSILON(9460): ELECTROPRODUCTION
ELECTROPRODUCTION: UPSILON(9460)
UPSILON(9460): DECAY
DECAY: UPSILON(9460)
UPSILON(9460): BRANCHING RATIO
FINAL STATE: (2JET)

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