Data di Pubblicazione:
2020
Citazione:
The partonic structure of the electron at the next-to-leading logarithmic accuracy in QED / V. Bertone, M. Cacciari, S. Frixione, G. Stagnitto. - In: JOURNAL OF HIGH ENERGY PHYSICS. - ISSN 1029-8479. - 2020:3(2020 Mar 24), pp. 135.1-135.58. [10.1007/JHEP03(2020)135]
Abstract:
By working in QED, we obtain the electron, positron, and photon Parton Distribution Functions (PDFs) of the unpolarised electron at the next-to-leading logarithmic accuracy. The PDFs account for all of the universal effects of initial-state collinear origin, and are key ingredients in the calculations of cross sections in the so-called structure- function approach. We present both numerical and analytical results, and show that they agree extremely well with each other. The analytical predictions are defined by means of an additive formula that matches a large-z solution that includes all orders in the QED coupling constant α, with a small- and intermediate-z solution that includes terms up to O(α3).
Tipologia IRIS:
01 - Articolo su periodico
Keywords:
NLO Computations; High Energy Physics - Phenomenology; High Energy Physics - Phenomenology
Elenco autori:
V. Bertone, M. Cacciari, S. Frixione, G. Stagnitto
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