Symbol in context

$\mathcal{O}_i^{(6)}$

This entry links every published equation using this exact notation. Its meaning may change between equations.

Meanings in context

Article-grounded definition

a dimension-six operator built from Standard Model fields respecting its gauge symmetries.

Article-grounded definition

a dimension-six operator built from Standard Model fields.

\mathcal{L}_{\text{SMEFT}} = \mathcal{L}_{\text{SM}} + \sum_i \frac{c_i}{\Lambda^{2}} \mathcal{O}_i^{(6)} + \mathcal{O}\!\left(\frac{1}{\Lambda^{4}}\right)

This equation states an equality: the expressions on both sides have the same value under the article’s assumptions.

\mathcal{O}_i^{(6)}

a dimension-six operator built from Standard Model fields respecting its gauge symmetries.

\mathcal{L}_{\text{SMEFT}} = \mathcal{L}_{\text{SM}} + \sum_i \frac{c_i}{\Lambda^{2}} \mathcal{O}_i^{(6)} + \mathcal{O}\!\left(\frac{1}{\Lambda^{4}}\right)

This equation states an equality: the expressions on both sides have the same value under the article’s assumptions.

\mathcal{O}_i^{(6)}

a dimension-six operator built from Standard Model fields.