Diphoton decay of the higgs from the Epstein-Glaser viewpoint
Abstract
We revisit a nearly 10-year old controversy on the diphoton decay of the Higgs particle. To a large extent, the controversy turned around the respective merits of the regularization techniques employed. The novel aspect of our approach is that no regularization techniques are brought to bear: we work within the Bogoliubov-Epstein-Glaser scheme of renormalization by extension of distributions. Solving the problem actually required an expansion of this method's toolkit, furnished in the paper.
- Publication:
-
European Physical Journal C
- Pub Date:
- February 2021
- DOI:
- 10.1140/epjc/s10052-021-08898-z
- arXiv:
- arXiv:2011.12675
- Bibcode:
- 2021EPJC...81..131D
- Keywords:
-
- High Energy Physics - Phenomenology;
- High Energy Physics - Theory;
- Mathematical Physics
- E-Print:
- 45 pages, to appear in Eur. Phys. J. C