A Study of b anti-b Production in e+e- Collisions at s**(1/2) = 130-GeV - 207-GeV

Measurements are presented of R_b, the ratio of the b bbar cross-section to the q qbar cross-section in e+e- collisions, and the forward-backward asymmetry A^b_FB at twelve energy points in the range sqrt(s) = 130-207 GeV. These results are found to be consistent with the Standard Model expectations. The measurements are used to set limits on new physics scenarios involving contact interactions.

Note:

23 pages, 6 figures, Accepted by Eur. Phys. J. C

bottom: pair production
channel cross section: ratio
angular distribution: asymmetry
contact interaction
new physics
DELPHI
electron positron: annihilation
quark: pair production
energy dependence
CERN LEP Stor

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Figures(13)

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