Calculation of infrared-divergent Feynman diagrams with zero mass threshold

Fleischer J, Smirnov VA, Frink A, Korner J, Kreimer D, Schilcher K, Tausk JB (1998)
EUROPEAN PHYSICAL JOURNAL C 2(4): 747-756.

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Zeitschriftenaufsatz | Veröffentlicht | Englisch
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Abstract / Bemerkung
Two-loop vertex Feynman diagrams with infrared and collinear divergences are investigated by two independent methods. On the one hand, a method of calculating Feynman diagrams from their small momentum expansion [1] extended to diagrams with zero mass thresholds [2] is applied. On the other hand, a numerical method based on a two-fold integral representation is used [3], [4]. The application of the latter method is possible by using lightcone coordinates in the parallel space. The numerical data obtained with the two methods are in impressive agreement.
Erscheinungsjahr
Zeitschriftentitel
EUROPEAN PHYSICAL JOURNAL C
Band
2
Zeitschriftennummer
4
Seite
747-756
ISSN
PUB-ID

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Fleischer J, Smirnov VA, Frink A, et al. Calculation of infrared-divergent Feynman diagrams with zero mass threshold. EUROPEAN PHYSICAL JOURNAL C. 1998;2(4):747-756.
Fleischer, J., Smirnov, V. A., Frink, A., Korner, J., Kreimer, D., Schilcher, K., & Tausk, J. B. (1998). Calculation of infrared-divergent Feynman diagrams with zero mass threshold. EUROPEAN PHYSICAL JOURNAL C, 2(4), 747-756. doi:10.1007/s100520050179
Fleischer, J., Smirnov, V. A., Frink, A., Korner, J., Kreimer, D., Schilcher, K., and Tausk, J. B. (1998). Calculation of infrared-divergent Feynman diagrams with zero mass threshold. EUROPEAN PHYSICAL JOURNAL C 2, 747-756.
Fleischer, J., et al., 1998. Calculation of infrared-divergent Feynman diagrams with zero mass threshold. EUROPEAN PHYSICAL JOURNAL C, 2(4), p 747-756.
J. Fleischer, et al., “Calculation of infrared-divergent Feynman diagrams with zero mass threshold”, EUROPEAN PHYSICAL JOURNAL C, vol. 2, 1998, pp. 747-756.
Fleischer, J., Smirnov, V.A., Frink, A., Korner, J., Kreimer, D., Schilcher, K., Tausk, J.B.: Calculation of infrared-divergent Feynman diagrams with zero mass threshold. EUROPEAN PHYSICAL JOURNAL C. 2, 747-756 (1998).
Fleischer, Jochem, Smirnov, VA, Frink, A, Korner, J, Kreimer, D, Schilcher, K, and Tausk, JB. “Calculation of infrared-divergent Feynman diagrams with zero mass threshold”. EUROPEAN PHYSICAL JOURNAL C 2.4 (1998): 747-756.

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arXiv: hep-ph/9704353

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