%0 Journal Article %T A Study of the Behavior of Mass of a Particle (Matter) under Gravitational Interaction with Another Particle in Relativistic Motion and the Mathematical Model %A Santosh Kumar Karn %A Necati Demiroglu %J Open Access Library Journal %V 10 %N 3 %P 1-8 %@ 2333-9721 %D 2023 %I Open Access Library %R 10.4236/oalib.1109741 %X Gravitational interaction among objects of all sizes from subatomic particles (matters) having nonzero mass to clusters of galaxies in the universe whether at rest or in non-relativistic or relativistic motion tends to interact with each other. To understand the nature at deeper level, the study of gravitational interaction, theory of relativity and quantum mechanics is of great importance and is an active field of research these days. In the present work, an attempt is made to understand the gravity, quantum theory and theory of relativity together, and study the mass of an object under gravitational interaction with another object in relativistic motion. We compute the change in the mass of the two objects, total change in mass of the system of the two objects, and the energy released in the process. We find that in a closed system, the mass of an object (matter) decreases due to increase in mass of another object in relativistic motion and under gravitational interaction with the first object. This model thus in a way reveals theoretically and mathematically a relationship between gravity, quantum theory, and theory of relativity. %K Gravity %K Relativity %K Quantum %K Field Theory %K High Energy Physics %K Mass %K Speed %U http://www.oalib.com/paper/6788403