Galaxy’s spin may help explain matter-antimatter dilemma

Space.com : A physicist at the UK’s University of Warwick believes he has found a testable explanation for apparent CP violation. In a paper published in Europhysics Letters, Mark Hadley suggests that researchers have neglected to take into account the significant impact of the rotation of our galaxy on the pattern of how subatomic particles break down. He thinks that although matter and antimatter versions of the same particle begin as mirror images of each other, as they decay they experience what he terms galactic “frame dragging,” whereby the speed and angular momentum of the galaxy twist the space and time around it. The effect is significant enough to cause the different structures in each particle to experience different levels of time dilation and therefore decay in different ways. “This radical prediction is testable with the data that has already been collected at [the Large Hadron Collider at] CERN and BaBar [at SLAC] by looking for results that are skewed in the direction that the galaxy rotates,” Hadley said.