In 2008, Lawrence Livermore National Laboratory reported being able to generate large quantities of this particle by shining their Titan laser at a one millimeter thick piece of gold. The then-recent discovery of this particle led Homi J. Bhabha to study his namesake scattering. (15[2])Nondestructive (15[1])probing (15[1])of defects (15[1])in solids can be achieved (-5[1])by studying the gamma rays emitted by the annihilation of this particle. (15[2])(*) Glucose is substituted (10[1])with fluorine-18 (10[5])to create (10[1])a (10[2])tracer (10[2])that acts (10[2])as a source of this particle (10[4])in one imaging (10[1])technique. (10[6]-5[1])This particle was (10[1])predicted to exist prior to its actual (10[1])discovery (-5[2])by the allowance of certain valid negative energy solutions in Dirac’s equation. (-5[2])This particle is the smallest lepton in the Standard Model that has a positive (10[1])charge. (10[1])For 10 points, name this antiparticle (10[1])that is the partner to the electron. (10[1])■END■ (10[5])