Summary
We present details on a new measurement of the muon magnetic anomaly, <a:math xmlns:a="http://www.w3.org/1998/Math/MathML" display="inline"><a:msub><a:mi>a</a:mi><a:mi>μ</a:mi></a:msub><a:mo>=</a:mo><a:mo stretchy="false">(</a:mo><a:msub><a:mi>g</a:mi><a:mi>μ</a:mi></a:msub><a:mo>−</a:mo><a:mn>2</a:mn><a:mo stretchy="false">)</a:mo><a:mo>/</a:mo><a:mn>2</a:mn></a:math>. The result is based on positive muon data taken at Fermilab’s Muon Campus during the 2019 and 2020 accelerator runs. The measurement uses <e:math xmlns:e="http://www.w3.org/1998/Math/MathML" display="inline"><e:mrow><e:mn>3.1</e:mn><e:mtext> </e:mtext><e:mtext> </e:mtext><e:mi>GeV</e:mi><e:mo>/</e:mo><e:mi>c</e:mi></e:mrow></e:math> polarized muons stored in a 7.1-m-radius storage ring with a 1.45 T uniform magnetic field.
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