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Calculation of the two-loop heavy-flavor contribution to Bhabha scattering


Bonciani, R; Ferroglia, A; Penin, A A (2008). Calculation of the two-loop heavy-flavor contribution to Bhabha scattering. Journal of High Energy Physics, (02):080 .

Abstract

We describe in detail the calculation of the two-loop corrections to the QED Bhabha scattering cross section due to the vacuum polarization by heavy fermions. Our approach eliminates one mass scale from the most challenging part of the calculation and allows us to obtain the corrections in a closed analytical form. The result is valid for arbitrary values of the heavy fermion mass and the Mandelstam invariants, as long as s, t, u >> me2.

We describe in detail the calculation of the two-loop corrections to the QED Bhabha scattering cross section due to the vacuum polarization by heavy fermions. Our approach eliminates one mass scale from the most challenging part of the calculation and allows us to obtain the corrections in a closed analytical form. The result is valid for arbitrary values of the heavy fermion mass and the Mandelstam invariants, as long as s, t, u >> me2.

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7 citations in Web of Science®
14 citations in Scopus®
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Additional indexing

Item Type:Journal Article, refereed, original work
Communities & Collections:07 Faculty of Science > Institute for Computational Science
Dewey Decimal Classification:530 Physics
Uncontrolled Keywords:LEP HERA and SLC Physics; Standard Model; Electromagnetic Processes and Properties
Language:English
Date:February 2008
Deposited On:13 Feb 2009 15:43
Last Modified:31 May 2016 13:58
Publisher:Institute of Physics Publishing
ISSN:1029-8479
Publisher DOI:10.1088/1126-6708/2008/02/080
Related URLs:http://arxiv.org/abs/0802.2215
Permanent URL: http://doi.org/10.5167/uzh-13582

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