The γγ decay of the Higgs boson in FDR

The γγ decay of the Higgs boson in FDR

We review the first complete calculation performed within the Four Dimensional Regularization scheme (FDR), the recently-proposed approach for addressing multi-loop calculations, which is simultaneously free of infinities and gauge-invariant in 4 dimensions. As a case study, the 1-loop-induced ampli...

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Main Authors: Donati Alice M., Pittau Roberto
Format: Article
Language:English
Published: EDP Sciences 2013-11-01
Series:EPJ Web of Conferences
Online Access:http://dx.doi.org/10.1051/epjconf/20136012014
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spelling doaj-b0fb8378d7a742c7b2085b8a7f2ccb692021-08-02T04:04:47ZengEDP SciencesEPJ Web of Conferences2100-014X2013-11-01601201410.1051/epjconf/20136012014The γγ decay of the Higgs boson in FDRDonati Alice M.Pittau RobertoWe review the first complete calculation performed within the Four Dimensional Regularization scheme (FDR), the recently-proposed approach for addressing multi-loop calculations, which is simultaneously free of infinities and gauge-invariant in 4 dimensions. As a case study, the 1-loop-induced amplitude for the Higgs boson decay into two photons was calculated in arbitrary gauge. The result obtained, identical to that assessed with standard methods, stands as an explicit test of the gauge-invariance property of FDR. Moreover, the calculation provides an insight into the use of the technique, in particular in the presence of fermions. http://dx.doi.org/10.1051/epjconf/20136012014
collection DOAJ
language English
format Article
sources DOAJ
author Donati Alice M.
Pittau Roberto
spellingShingle Donati Alice M.
Pittau Roberto
The γγ decay of the Higgs boson in FDR
EPJ Web of Conferences
author_facet Donati Alice M.
Pittau Roberto
author_sort Donati Alice M.
title The γγ decay of the Higgs boson in FDR
title_short The γγ decay of the Higgs boson in FDR
title_full The γγ decay of the Higgs boson in FDR
title_fullStr The γγ decay of the Higgs boson in FDR
title_full_unstemmed The γγ decay of the Higgs boson in FDR
title_sort γγ decay of the higgs boson in fdr
publisher EDP Sciences
series EPJ Web of Conferences
issn 2100-014X
publishDate 2013-11-01
description We review the first complete calculation performed within the Four Dimensional Regularization scheme (FDR), the recently-proposed approach for addressing multi-loop calculations, which is simultaneously free of infinities and gauge-invariant in 4 dimensions. As a case study, the 1-loop-induced amplitude for the Higgs boson decay into two photons was calculated in arbitrary gauge. The result obtained, identical to that assessed with standard methods, stands as an explicit test of the gauge-invariance property of FDR. Moreover, the calculation provides an insight into the use of the technique, in particular in the presence of fermions.
url http://dx.doi.org/10.1051/epjconf/20136012014
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