Factorization at Subleading Power, Sudakov Resummation and Endpoint Divergences in Soft-Collinear Effective Theory
- Publication type:
- Journal article
- Metadata:
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- Abstract
- Starting from the first renormalized factorization theorem for a process described at subleading power in soft-collinear effective theory, we discuss the resummation of Sudakov logarithms for such processes in renormalization-group improved perturbation theory. Endpoint divergences in convolution integrals, which arise generically beyond leading power, are regularized and removed by systematically rearranging the factorization formula. We study in detail the example of the $b$-quark induced $h\to\gamma\gamma$ decay of the Higgs boson, for which we resum large logarithms of the ratio $M_h/m_b$ at next-to-leading logarithmic order. We also briefly discuss the related $gg\to h$ amplitude.
- Autoren
- Ze Long Liu
- Bianka Mecaj
- Matthias Neubert
- Xing Wang
- Autoren-URL
- http://arxiv.org/abs/2009.04456v2
- Zeitschrift
- Phys. Rev. D
- Schlüsselwörter
- hep-ph
- hep-ph
- hep-th
- Notes
- 6 pages, 1 figure; v2: journal version; significantly extended version including a discussion of Higgs production in gluon-gluon fusion
- Paginierung
- 014004
- Datum der Veröffentlichung
- 2020
- Herausgeber URL
- http://dx.doi.org/10.1103/PhysRevD.104.014004
- Datum der Datenerfassung
- 2020
- Datum, an dem der Datensatz öffentlich gemacht wurde
- 2020
- Titel
- Factorization at Subleading Power, Sudakov Resummation and Endpoint Divergences in Soft-Collinear Effective Theory
- Ausgabe der Zeitschrift
- 104
Files
2009.04456v2.pdf
Data source: arXiv
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