Scientists in Italy searching for the "dark force" switch on PADME.
https://www.theguardian.com/science...orce-to-discover-what-the-universe-is-made-of
" ... seek evidence for a new fundamental force that forms a bridge between the ordinary matter of the world around us and the invisible “dark sector” that is said to make up the vast majority of the cosmos.
Known as Padme, for Positron Annihilation into Dark Matter Experiment ...
Unlike normal particles of light, any dark photons produced in Padme will be invisible to the instrument’s detector. But by comparing the energy and direction of the positrons fired in, with whatever comes out, scientists can tell if an invisible particle has been created and work out its mass. Though normal photons are massless, dark photons are not, and Padme will search for those up to 50 times heavier than an electron.
“The dark photon, if it exists, is effectively a portal,” .... “It lets us peer into the dark sector to see what is happening. It won’t open the floodgates, but it will allow us to have a little look.”
[where is it]
https://www.theguardian.com/science...orce-to-discover-what-the-universe-is-made-of
" ... seek evidence for a new fundamental force that forms a bridge between the ordinary matter of the world around us and the invisible “dark sector” that is said to make up the vast majority of the cosmos.
Known as Padme, for Positron Annihilation into Dark Matter Experiment ...
Unlike normal particles of light, any dark photons produced in Padme will be invisible to the instrument’s detector. But by comparing the energy and direction of the positrons fired in, with whatever comes out, scientists can tell if an invisible particle has been created and work out its mass. Though normal photons are massless, dark photons are not, and Padme will search for those up to 50 times heavier than an electron.
“The dark photon, if it exists, is effectively a portal,” .... “It lets us peer into the dark sector to see what is happening. It won’t open the floodgates, but it will allow us to have a little look.”
[where is it]