Applications of the large mass expansion

Fleischer J, Kotikov AV, Veretin OL (1998)
ACTA PHYSICA POLONICA B 29(10): 2611-2625.

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Konferenzbeitrag | Veröffentlicht | Englisch
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Abstract / Bemerkung
The method of the large mass expansion (LME) is investigated for selfenergy and vertex functions in two-loop order. It has the technical advantage that in many cases the expansion coefficients can be expressed analytically. As long as only one non-zero external momentum squared, q(2), is involved also the Taylor expansion (TE) w.r.t. small q(2) yields high precision results in a domain sufficient for most applications. In the case of only one non-zero mass M and only one external momentum squared, the expansion w.r.t. q(2)/M-2 is identical for the TE and the LME. In this case the combined techniques yield analytic expressions for many diagrams, which are quite easy to handle numerically.
Erscheinungsjahr
Band
29
Zeitschriftennummer
10
Seite
2611-2625
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Fleischer J, Kotikov AV, Veretin OL. Applications of the large mass expansion. ACTA PHYSICA POLONICA B. 1998;29(10):2611-2625.
Fleischer, J., Kotikov, A. V., & Veretin, O. L. (1998). Applications of the large mass expansion. ACTA PHYSICA POLONICA B, 29(10), 2611-2625.
Fleischer, J., Kotikov, A. V., and Veretin, O. L. (1998). Applications of the large mass expansion. ACTA PHYSICA POLONICA B 29, 2611-2625.
Fleischer, J., Kotikov, A.V., & Veretin, O.L., 1998. Applications of the large mass expansion. ACTA PHYSICA POLONICA B, 29(10), p 2611-2625.
J. Fleischer, A.V. Kotikov, and O.L. Veretin, “Applications of the large mass expansion”, ACTA PHYSICA POLONICA B, vol. 29, 1998, pp. 2611-2625.
Fleischer, J., Kotikov, A.V., Veretin, O.L.: Applications of the large mass expansion. ACTA PHYSICA POLONICA B. 29, 2611-2625 (1998).
Fleischer, Jochem, Kotikov, AV, and Veretin, OL. “Applications of the large mass expansion”. ACTA PHYSICA POLONICA B 29.10 (1998): 2611-2625.

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arXiv: hep-ph/9808243

Inspire: 474412

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