Title : Introduction to A Novel Dark Messenger Search Experiment at an Accelerator, DAMSA
Speaker Name : Jaehoon Yu Speaker Institution : University of Texas at Arlington
Abstract : Dark matter is thought to make up 25% of the universe. Dark sector particles (DSP) do not interact through the known forces but could be weakly coupled to Standard Model particles through a portal or a mediator (Dark Messenger) that could provide access to the dark matter world. Many searches for these particles at an accelerator thus far seem to face a ceiling that the sensitivity reach is greatly limited, beyond statistical effects. DAMSA (DArk Messenger Searches at an Accelerator) is an extremely short baseline, table-top scale experiment that aims to break through this limit. The experiment plans to take advantage of high beam powers available at various accelerator facilities around the world, including the newly constructed LESA at the SLAC National Laboratory, a essential element in providing an extremely controlled beam to another dark matter search experiment, LDMX. In this talk, I will describe the DAMSA experiment and discuss the status and plan for DAMSA, as well as its expected sensitivity reach on the search of the Axion-Like Particle, a dark messenger, as a benchmark physics case.