Relativistic Magnetic Reconnection in Colliding Plasma Clouds Generated by Multiple High Power Laser Pulses

The possibility of creating conditions for observing relativistic magnetic reconnection using two laser pulses of the XCELS facility being designed is analyzed. The necessary conditions are supposed to be created in a scheme, where magnetized plasma flows are generated on the back surface of thin solid targets due to beams of high-energy electrons injected into the depth of the target by the laser pulse fields and forming a strong current on the system symmetry axis. It is shown that in this case it is possible to obtain dense plasma bunches with a relatively low (of the order of several megaelectronvolts) temperature and a frozen-in magnetic field of the order of tens of kilotesla, so that the magnetization parameter will be several units.