Published February 1985 | Version v1
Journal article

Prompt electron production in e+e- annihilations at 29 GeV

Creators

  • 1. Yale Univ., New Haven, CT (USA)
  • 2. Tokyo Univ. (Japan)
  • 3. Massachusetts Univ., Amherst (USA)
  • 4. Johns Hopkins Univ., Baltimore, MD (USA)
  • 5. California Univ., Riverside (USA)
  • 6. California Univ., Los Angeles (USA)
  • 7. Lawrence Berkeley Lab., CA (USA)

Description

We have measured the inclusive prompt electron cross section over a wide momentum range (P>0.5 GeV/c) with the PEP-4 TPC detector. The semielectronic branching fractions of the c and b quarks are (9.1+-0.9(stat.)+-1.3(syst.)% and (11.0+-1.8+-1.0)%, respectively. The b quark fragmentation function peaks at high z with =0.74+-0.05+-0.03. The axial couplings to the neutral current are asub(c)=2.3+-1.4+-1.0 for the c quark and asub(b)=-2.0+-1.9+-0.5 for the b quark. (orig.)

Additional details

Publishing Information

Journal Title
Z. Phys., C
Journal Volume
27
Journal Issue
1
Series
CODEN: ZPCFD.;Z. Phys., C.
Journal Page Range
39-42
ISSN
0170-9739

Optional Information

Contract/Grant/Project number
Contract DE-AC03-76SF00098; DE-AM03-76SF00034