Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Scheming in the SMEFT   We discuss the constraints on the Standard Model Effective Field Theory
inferred from global fits to electroweak data. Special attention is paid to two
unconstrained combinations of Wilson coefficients that are present when the
analysis is restricted to measurements of $\bar\psi\psi\to\bar\psi\psi$
scatterings. We illustrate how these unconstrained directions arise due to a
reparameterization invariance that characterizes $\bar\psi\psi\to\bar\psi\psi$
processes but is not respected in $\bar\psi\psi\to\bar\psi\psi\bar\psi\psi$
scatterings. This invariance is independent of the operator basis adopted and
of the choice of the input parameters. This is verified comparing the results
obtained in the {$\hat \alpha_{em}, \hat m_Z, \hat G_F$} input scheme with
those of a {$\hat m_W, \hat m_Z, \hat G_F$} scheme.

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The categories of this paper are: comp-gas
22
The categories of this paper are: chao-dyn
29
The categories of this paper are: funct-an
7
The categories of this paper are: hep-th
31
The categories of this paper are: ao-sci
11
The categories of this paper are: hep-lat
19
The categories of this paper are: eess
3
The categories of this paper are: physics
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The categories of this paper are: solv-int
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The categories of this paper are: bayes-an
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The categories of this paper are: mtrl-th
5
The categories of this paper are: gr-qc
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The categories of this paper are: dg-ga
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The categories of this paper are: atom-ph
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The categories of this paper are: stat
10
The categories of this paper are: q-bio