Factorizing one-loop contributions to two-loop Bhabha scattering and automatization of Feynman diagram calculations

Fleischer J, Tarasov O, Riemann T, Werthenbach A (2003)
NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT 502(2-3): 567-569.

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Konferenzbeitrag | Veröffentlicht | Englisch
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Abstract / Bemerkung
In higher order calculations a number of new technical problems arise: one needs diagrams in arbitrary dimension in order to obtain their needed epsilon-expansion, zero Gram determinants appear, renormalization produces diagrams with 'dots' on the lines, i.e. higher-order powers of scalar propagators. All these problems cannot be accessed by the 'standard' Passarino-Veltman approach: what is needed for higher loops is not available there. We demonstrate our method of how to solve these problems. (C) 2003 Elsevier Science B.V. All rights reserved.
Erscheinungsjahr
Band
502
Zeitschriftennummer
2-3
Seite
567-569
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Fleischer J, Tarasov O, Riemann T, Werthenbach A. Factorizing one-loop contributions to two-loop Bhabha scattering and automatization of Feynman diagram calculations. NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT. 2003;502(2-3):567-569.
Fleischer, J., Tarasov, O., Riemann, T., & Werthenbach, A. (2003). Factorizing one-loop contributions to two-loop Bhabha scattering and automatization of Feynman diagram calculations. NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT, 502(2-3), 567-569. doi:10.1016/S0168-9002(03)00504-7
Fleischer, J., Tarasov, O., Riemann, T., and Werthenbach, A. (2003). Factorizing one-loop contributions to two-loop Bhabha scattering and automatization of Feynman diagram calculations. NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT 502, 567-569.
Fleischer, J., et al., 2003. Factorizing one-loop contributions to two-loop Bhabha scattering and automatization of Feynman diagram calculations. NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT, 502(2-3), p 567-569.
J. Fleischer, et al., “Factorizing one-loop contributions to two-loop Bhabha scattering and automatization of Feynman diagram calculations”, NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT, vol. 502, 2003, pp. 567-569.
Fleischer, J., Tarasov, O., Riemann, T., Werthenbach, A.: Factorizing one-loop contributions to two-loop Bhabha scattering and automatization of Feynman diagram calculations. NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT. 502, 567-569 (2003).
Fleischer, Jochem, Tarasov, O, Riemann, T, and Werthenbach, A. “Factorizing one-loop contributions to two-loop Bhabha scattering and automatization of Feynman diagram calculations”. NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT 502.2-3 (2003): 567-569.

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