Precision measurement of the hadronic cross-section through the radiative return method

Abstract

Electron--positron annihilation into hadrons plus an energetic photon from initial-state radiation allows the hadronic cross-section to be measured over a wide range of energies at high luminosity meson factories. Weighted integrals over this cross-section are a decisive input for electroweak precision tests. A Monte Carlo event generator called PHOKHARA has been developed, which simulates $e^{+}{e}^{-}\to$ hadrons + photon(s) at the NLO accuracy. The latest tests and upgrades are presented in this paper.

arXiv commentTalk given at 7th International Workshop on Tau Lepton Physics (TAU 02), Santa Cruz, California, 10-13 Sep 2002. TAU-2002-WE06. 10 pages, 12 figures

References in corpus (14)

• Measurement of the Positive Muon Anomalous Magnetic Moment to 0.7 ppm
• Measuring sigma(e^+e^- \to hadrons) using tagged photon
• Radiative return at NLO and the measurement of the hadronic cross-section in electron-positron annihilation
• Determination of ${\alpha }_s$ and heavy quark masses from recent measurements of $R(s)$
• Four Pion Final States with Tagged Photons at Electron Positron Colliders
• Pion Pair Production with Higher Order Radiative Corrections in Low Energy e+e- Collisions
• BHAGEN95: a Monte Carlo program for Bhabha scattering at LEP1/SLC and LEP2 energies
• NLO QED corrections to ISR in e+ e- annihilation and the measurement of σ(e+ e- \to hadrons) using tagged photons
• The radiative return at small angles: virtual corrections
• Four-pion production in e+ e- annihilation
• Radiative Corrections to the Hadronic Cross-Section Measurement at DAPHNE
• Contribution of the direct decay $\varphi \to {\pi }^{+}{\pi }^{-}\gamma$ to the process $e^{+}{e}^{-}\to {\pi }^{+}{\pi }^{-}\gamma$ at DA$\Phi$NE
• Scanning of the e+e- to pi+pi- cross--section below 1 GeV by radiative events with untagged photon
• The hard bremsstrahlung correction to e^+ e^- -> 4f with finite fermion masses: results for e^+ e^- -> u d-bar mu^- nu

Cited by in corpus (4)

• The radiative return at phi- and B-factories: FSR for muon pair production at next-to-leading order
• The radiative return at phi- and B-factories: FSR at next-to-leading order
• Measurement of the $e^{+}{e}^{-}\to {\pi }^{+}{\pi }^{-}{\pi }^0$ cross section in the energy range 0.62-3.50 GeV at Belle II
• Single B Production through R-Parity Violation