A study of \({\mathrm{b}}\bar{\mathrm{b}}\) production in e+e collisions at \(\sqrt{s}=130\) –207 GeV

Abstract

Measurements are presented of R b, the ratio of the \({\mathrm{b}}\bar{\mathrm{b}}\) cross-section to the \({\mathrm{q}}\bar{\mathrm{q}}\) cross-section in e+e collisions, and the forward-backward asymmetry A bFB 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.

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Correspondence to J. Timmermans.

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DELPHI Collaboration., Abdallah, J., Abreu, P. et al. A study of \({\mathrm{b}}\bar{\mathrm{b}}\) production in e+e collisions at \(\sqrt{s}=130\) –207 GeV. Eur. Phys. J. C 60, 1–15 (2009). https://doi.org/10.1140/epjc/s10052-009-0917-2

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Keywords

  • Systematic Uncertainty
  • Contact Interaction
  • Energy Point
  • Standard Model Expectation
  • DELPHI Collaboration