Exploring the standard model and beyond from the evidence of <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:mi>CE</mml:mi><mml:mi>ν</mml:mi><mml:mi>NS</mml:mi></mml:mrow></mml:math> with reactor antineutrinos

The observation of the coherent elastic neutrino-nucleus scattering process using reactor antineutrinos offers a unique opportunity to probe the Standard Model and explore beyond the Standard Model scenarios. This study reports on the latest results from the <a:math xmlns:a="http://www.w3.org/1998/Math/MathML" display="inline"><a:mrow><a:mi>CONUS</a:mi><a:mo>+</a:mo><a:mtext>experiment</a:mtext></a:mrow></a:math> conducted at the Leibstadt nuclear power plant in Switzerland. The CONUS collaboration reports <c:math xmlns:c="http://www.w3.org/1998/Math/MathML" display="inline"><c:mn>395</c:mn><c:mo>±</c:mo><c:mn>106</c:mn></c:math> events detected from reactor antineutrinos with an exposure of <e:math xmlns:e="http://www.w3.org/1998/Math/MathML" display="inline"><e:mrow><e:mn>327</e:mn><e:mtext> </e:mtext><e:mtext> </e:mtext><e:mi>kg</e:mi><e:mo>·</e:mo><e:mi>days</e:mi></e:mrow></e:math>, utilizing high-purity germanium detectors operated at sub-keV thresholds. A <g:math xmlns:g="http://www.w3.org/1998/Math/MathML" display="inline"><g:msup><g:mi>χ</g:mi><g:mn>2</g:mn></g:msup></g:math>-based statistical analysis was performed on these results, incorporating systematic uncertainties. This analysis was used to extract the weak mixing angle, establish a limit on the neutrino magnetic moment, and impose constraints on neutrino nonstandard interactions using reactor antineutrinos. The results confirm the potential of coherent elastic neutrino-nucleus scattering experiments in the study of fundamental neutrino properties and probing new physics.