A measurement of the charge asymmetry of hadronic events in electron positron annihilation

Greenshaw, T. and Finch, Alexander (1989) A measurement of the charge asymmetry of hadronic events in electron positron annihilation. Zeitschrift für Physik C Particles and Fields, 42 (1). pp. 1-6. ISSN 0170-9739

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Abstract

The quark charge asymmetry, summed over flavours, has been measured at centre of mass energies of 35 GeV and 44 GeV using the JADE detector sited on the electron-positron storage ring PETRA. The asymmetry is found to be consistent with the expectations of the standard model at both energies and enables a measurement of the product of the axial-vector coupling constant of the electron with the axial-vector coupling constants of the quarks, assuming the moduli of these latter to be flavour independent. This gives, with reasonable assumptions concerning the effects of B0B0−−− mixing,a e a q =−1.09±0.18±0.23 where the first error is statistical and the second systematic.

Item Type:
Journal Article
Journal or Publication Title:
Zeitschrift für Physik C Particles and Fields
Uncontrolled Keywords:
/dk/atira/pure/subjectarea/asjc/3100/3101
Subjects:
?? PHYSICS AND ASTRONOMY (MISCELLANEOUS) ??
ID Code:
63832
Deposited By:
Deposited On:
02 May 2013 13:51
Refereed?:
Yes
Published?:
Published
Last Modified:
19 Sep 2023 01:03