Detection of dark massive particles from the central region of Milky Way galaxy.

We report direct detection of dark massive particles from central region of Milky Way Galaxy (CMW) by using new method, Patent: US 11,927,705(2024), for detecting massive neutral particles. It uses mechanical sensor responsive to motion of sensor’s atoms with high signal-to-noise ratio of ~ 100. The location of source-star emitting these particles is located by finding a space direction from which they arrive and hit the sensors. These electrically neutral superheavy particles were detected in Earth-based laboratory. The mass of detected particles is of the order of 10^-21 kg. Their mass and zero electric charge make them invisible/dark to electro-magnetic sensors employed in the particle detectors. The experimental data on detected particles during different dates and times are presented. In our experiments, light-weight quartz crystals are attached as bobs on the end of a pendulum. The bob is swinging with low frequencies of a few Hz, when massive particles hit it. The particles interact with sensor’s atoms and produce changes in atom’s dynamics, which allows detecting particles by the optical and electrical channels of registration. A Laser Doppler Vibrometer registers a velocity of bob vibrations, first reported in 2023 April APS meeting for solar dark particles. The electrical sensor measures a radio-frequency current of 9 – 13 MHz through vibrating piezoelectric crystal-bob. This current is changed when external neutral massive particle enters the crystal. The experimental data from optical and electrical registration channels and corresponding theoretical calculations resulted in comparable masses of discovered dark particles emitted from CMW region.