# The Two Scales of New Physics in Higgs Couplings

### APA

Rigo, G. (2023). The Two Scales of New Physics in Higgs Couplings. Perimeter Institute. https://pirsa.org/23100112

### MLA

Rigo, Gabriele. The Two Scales of New Physics in Higgs Couplings. Perimeter Institute, Oct. 27, 2023, https://pirsa.org/23100112

### BibTex

@misc{ pirsa_PIRSA:23100112, doi = {10.48660/23100112}, url = {https://pirsa.org/23100112}, author = {Rigo, Gabriele}, keywords = {Particle Physics}, language = {en}, title = {The Two Scales of New Physics in Higgs Couplings}, publisher = {Perimeter Institute}, year = {2023}, month = {oct}, note = {PIRSA:23100112 see, \url{https://pirsa.org}} }

Gabriele Rigo CEA Saclay

## Abstract

Higgs coupling deviations from Standard Model predictions contain information about two scales of Nature: that of new physics responsible for the deviation, and the scale where new bosons must appear. The two can coincide, but they do not have to. The scale of new bosons can be calculated by going beyond an effective field theory description of the coupling deviation. I will discuss model-independent upper bounds on the scale of new bosons for deviations in Higgs to WW and ZZ couplings, and explain how any measured deviation at present or future colliders requires the existence of new bosons within experimental reach. This has potentially interesting implications for naturalness.

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