Diboson production in the SMEFT from gluon fusion

Autor:	Rossia, Alejo N., Thomas, Marion O. A., Vryonidou, Eleni
Rok vydání:	2023
Předmět:	High Energy Physics - Phenomenology
Druh dokumentu:	Working Paper
Popis:	Precision measurements of diboson production at the LHC is an important probe of the limits of the Standard Model. The gluon-fusion channel of this process offers a connection between the Higgs and top sectors. We study in a systematic way gluon-induced diboson production in the Standard Model Effective Field Theory. We compute the amplitudes of double Higgs, double $Z/W$ and associated $ZH$ production at one loop and with up to one insertion of a dimension-6 operator. We study their high-energy limit and identify to which operators each channel could be most sensitive. To illustrate the relevance of these processes, we perform a phenomenological study of associated $ZH$ production. We show that for some top operators the gluon-induced channel can offer competitive sensitivity to constraints obtained from top quark production processes. Comment: 31 + 16 pages, 14 figures, 23 tables, 6 appendices
Databáze:	arXiv
Externí odkaz:	http://arxiv.org/abs/2306.09963 Zobrazit plný text záznamu View this record from Arxiv