Relativistic effects on the back-to-back correlation functions of boson-antiboson pairs in high energy heavy ion collisions

We calculate the back-to-back correlation (BBC) functions of relativistic boson-antiboson pairs in high energy heavy ion collisions using the Monte Carlo method. The relativistic effects on the BBC functions of φφ and K + K − pairs are investigated. The investigations indicate that the relativistic effects on the BBC functions of K + K − pairs with large momenta are significant, and the effect is sensitive to the particle freeze-out temperature.