Radiative Corrections to the Photon + 1 Jet Rate at LEP

Abstract

We present the results of a calculation of the rate for the annihilation of an $e^{+}{e}^{-}$ pair into a jet containing an energetic photon and a single further jet at order $\alpha {\alpha }_s$. By comparing these results with the existing data on the photon + 1 jet rate from the ALEPH Collaboration, we make a first determination of the process independent quark-to-photon fragmentation function $D_{q\to \gamma }(z,{\mu }_F)$ at order $\alpha {\alpha }_s$. We also compare our prediction for the inclusive photon energy spectrum with the recent OPAL measurement.

13 pages, LaTeX, 6 figures included; Discussion on resummation approaches and comparison to recent OPAL data on inclusive photon energy spectrum added; to appear in Phys.Lett.B

References in corpus (1)

• Isolated Photons at Hadron Colliders at O(αalpha_s^2) (II): Spin Dependent Case

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• Four-Particle Phase Space Integrals in Massless QCD
• NLO QCD+EW predictions for V+jets including off-shell vector-boson decays and multijet merging
• Theory of hard photoproduction
• A complete $\mathcal{O}(\alpha {\alpha }_s)$ calculation of the Photon + 1 Jet rate in $e^{+}{e}^{-}$ annihilation
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• Precise QCD predictions for the production of a photon pair in association with two jets
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• Photon isolation effects at NLO in gamma gamma + jet final states in hadronic collisions
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• Cosmic Ray Signals from Mini Black Holes in Models with Extra Dimensions: An Analytical/Monte Carlo Study
• Photon Radiation with MadDipole
• Measuring the Photon Fragmentation Function at HERA
• Isolated Photons in Deep Inelastic Scattering
• Factorization and soft-gluon divergences in isolated-photon cross sections
• Infrared structure of $e^{+}{e}^{-}\to 3$ jets at NNLO - the $C_F^2$ contribution
• Photon Plus Jet Cross Sections in Deep Inelastic ep Collisions at Order O(alpha^2 alpha_s)
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• Access to Photon Fragmentation Functions in Hadronic Jet Production
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• Photon isolation and jet substructure
• NLO QCD predictions for $\mathbf{t}\bar{\mathbf{t}}\mathbf{\gamma }$ with realistic photon isolation
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