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

Fleischer J, Tarasov O, Riemann T, Werthenbach A (2003)
In: Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT, 502(2-3). ELSEVIER SCIENCE BV: 567-569.

Konferenzbeitrag | Veröffentlicht | Englisch
 
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Autor*in
Fleischer, JochemUniBi; Tarasov, O; Riemann, T; Werthenbach, A
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.
Stichworte
Feynman diagrams automatization; Bhabba scattering
Erscheinungsjahr
2003
Titel des Konferenzbandes
Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
Band
502
Ausgabe
2-3
Seite(n)
567-569
ISSN
0168-9002
Page URI
https://pub.uni-bielefeld.de/record/1611699

Zitieren

Fleischer J, Tarasov O, Riemann T, Werthenbach A. Factorizing one-loop contributions to two-loop Bhabha scattering and automatization of Feynman diagram calculations. In: Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT. Vol 502. ELSEVIER SCIENCE BV; 2003: 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 and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT, 502, 567-569. ELSEVIER SCIENCE BV. 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” in Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT, vol. 502, (ELSEVIER SCIENCE BV), 567-569.
Fleischer, J., et al., 2003. Factorizing one-loop contributions to two-loop Bhabha scattering and automatization of Feynman diagram calculations. In Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT. no.502 ELSEVIER SCIENCE BV, pp. 567-569.
J. Fleischer, et al., “Factorizing one-loop contributions to two-loop Bhabha scattering and automatization of Feynman diagram calculations”, Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT, vol. 502, ELSEVIER SCIENCE BV, 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 and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT. 502, p. 567-569. ELSEVIER SCIENCE BV (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 and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. ELSEVIER SCIENCE BV, 2003.Vol. 502. NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT. 567-569.

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