No, it is not possible to create both a positron and an electron from a single photon. The conversion of a single photon into an electron-positron pair violates the conservation of energy and momentum.
In particle physics, the creation of an electron-positron pair typically requires the interaction of at least two photons, such as in a process called pair production. Pair production can occur when a high-energy photon interacts with a heavy nucleus or in the presence of other particles, such as in particle accelerators or during high-energy interactions in cosmic rays.
During pair production, the energy of the incoming photon is converted into the mass of an electron-positron pair. The excess energy above the rest masses of the particles is shared as kinetic energy between them. To conserve momentum, the electron and positron are emitted in opposite directions.
However, a single photon does not have sufficient energy to produce an electron-positron pair due to the conservation laws. The process would require more energy and additional particles or fields involved.