New physics from COHERENT data with improved Quenching Factor

Understand

A recent new measurement and re-analysis of past measurements suggested an improved quenching factor value and uncertainty for CsI[Na].

• This implies a measurement of the COHERENT experiment of coherent elastic neutrino-nucleus scattering that is closer to the Standard Model prediction and has less uncertainty.
• We illustrate the impact of this improvement by revisiting fits to the Weinberg angle, neutrino magnetic moments, neutron rms and neutrino charge radii, neutrino non-standard interactions (in particular those relevant for LMA-Dark) and new scalar as well as vector bosons.
• Significant improvement is observed, particularly for those scenarios coherently affecting the electroweak SM process.