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June 22, 2020 to July 2, 2020
US/Central timezone

Scrutinizing the CEvNS analysis

Not scheduled
10m

Speaker

Julia Gehrlein (Brookhaven National Laboratory)

Description

The observation of coherent elastic neutrino nucleus scattering (CEvNS) by the COHERENT collaboration in 2017 has opened a new window to beyond the Standard Model physics and is used to test the Standard Model predictions at a different energy scale. However a careful statistical analysis is essential to derive correct constraints and bounds on new physics parameters. We perform a detailed analysis of the publicly available COHERENT CsI data making use of all available background data and calculate the p value of the Standard Model predictions using a test statistic. We find that the SM is a good fit.
As an example for the ability of this approach to test new physics scenarios we quantify the allowed ranges for non-standard interactions which is reduced in comparison to previous analysis.

Mini-abstract

An improved statistical analysis of the CEvNS process demonstrated on the example of the CsI data

Primary author

Julia Gehrlein (Brookhaven National Laboratory)

Co-author

Peter Denton (Brookhaven National Laboratory)

Presentation Materials