However, an alternative oscillating String Field Theory (Q-FFF theory) says, the creation but also annihilation of e- and e+, will be produced around the natural string vacuum collider "Trapped Space Horizon" of each black hole, suggested by R.Penrose.
OUR universal vacuum string field has a chiral Right handed tetrahedral string fluxtube structure oscillating between nodes, powering all propeller shaped fermions ( e- and e+) by collision, into a milling process, milling vacuum strings from the into charged Photons.
Both particles will annihilate each other, or will be the first to merge with one Photon string to become a Quark.
Positive Quarks (left handed) will have a better stability inside the Righthanded vacuum than Negative quarks, so they leave the e- electrons alone forming the start of plasma all together.
Conclision: the Big Bang was the explosion of a COLD String Knot Black Hole, compressed by the decreasing pressure of the former Big Crunch vacuum.
Small black holes around the center of the Milky Way, are best production plants for plasma out
of the vacuum because the largest horizon curvature of the Penrose trapped space
horizon, able to collide but also spitting out new fermions, better than the
giant black hole at the center.