μRWELL detector developments at Jefferson Lab for high luminosity experiments

Improving the performance of large acceptance detectors in terms of luminosity will significantly broaden the scope of physics experiments at Jefferson Lab. High-luminosity experiments enable the measurement of the Double Deeply Virtual Compton Scattering (DDVCS) reaction, an important physics process in the formalism of Generalized Parton Distributions, which has never been measured because of its low rate.The proposed luminosity upgrade to L = 10³⁷ cm^-2s^-1 will enable measurements of DDVCS. However, it requires advanced tracking technology capable of withstanding high rates of approximately 1 MHz/cm².

A promising solution is a simple, cost effective and robust Micro-Pattern Gaseous Detector (MPGD) known as the Resistive Micro-Well detector μRWELL. It is an ideal candidate to meet the requirements such as large area coverage, low mass, and high resolution at higher luminosities. A focused R&D initiative has been proposed under JLABs' LDRD (Lab Directed R&D) project for prototyping μRWELL technologies to develop high-luminosity trackers. The presentation will cover the technical aspects and design choices of the μRWELL prototype and preliminary performance characteristic tests.