Towards the renormalisation of the Standard Model effective field theory to dimension eight: Bosonic interactions II
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Das Bakshi, S., Chala, M., Díaz-Carmona, A. et al. Towards the renormalisation of the Standard Model effective field theory to dimension eight: bosonic interactions II. Eur. Phys. J. Plus 137, 973 (2022). [https://doi.org/10.1140/epjp/s13360-022-03194-5]
SponsorshipJunta de Andalucía under grants FQM 101, A-FQM-211-UGR18, P18-FR-4314 (FEDER) and A-FQM-467-UGR18 (FEDER); LIP (FCT, COMPETE2020-Portugal2020, FEDER, POCI-01-0145-FEDER-007334) and by FCT under the project CERN/FIS-PAR/0032/2021 and under the grant SFRH/BD/144244/2019; Grants PID2019-106087GB-C21/C22 (10.13039/501100011033); Spanish MINECO under the FPI programme; Spanish MINECO under the Ramón y Cajal programme; Funding for open access charge: Universidad de Granada/CBUA
We calculate the renormalisation group running of the bosonic Standard Model (SM) effective operators at one loop and to order v4/Λ4, with v∼246 GeV being the electroweak scale and Λ the unknown new physics threshold. We focus on contributions driven by one dimension-eight term and SM couplings, thus extending (and completing) the effort initiated in Chala et al. (SciPost Phys 11:065, 2021). arXiv:2106.05291, in which quantum corrections from pairs of dimension-six interactions were considered. We highlight some interesting consequences, including the renormalisation of loop-induced interactions by tree-level generated terms and, more importantly, the validity of positivity bounds on different operators inducing anomalous gauge quartic couplings.