If astrophysicists can observe those particle showers, they can look backward and search for their origin.
But this symmetry between fermions and bosons can, in theory, reduce those particle masses all the way down to the values we observe.
Even what scientists hope to find in the aftermath of those particle collisions sound fantastical: A fleeting particle called the Higgs boson, known ominously as the "god particle".
No matter how the incoming particle interacts with particles in the time-travel region, or how those particle interact with each other, total linear momentum is conserved by the interaction.
For cross-correlation (CC -based partiCC -basedtation and center determination, "mincc=0.2" indicates that only those particle images with CC values higher than orientation 0.2 and incenter in the reconstruction.
For common-line-based particle orientation and center determination (Crowther 1971; Thuman-Commike and Chiu 2000), "mincc=0.2" indicates that only those particle images with cosine values of phase residuals higher than or equal to 0.2 are included in the reconstruction.
