The concept of magnetic monopoles, which are isolated north or south magnetic poles, is still a topic of scientific research and has not been definitively observed or confirmed in experiments However, I can provide information based on the current understanding.
If positive and negative magnetic monopoles were to exist and come together, they would likely interact to form a composite system rather than an electromagnetic particle. Electromagnetic particles, such as photons, are carriers of the electromagnetic force and are typically associated with the interaction between electric charges, not magnetic monopoles.
In the framework of particle physics, the electromagnetic force is mediated by photons, which are massless particles. The presence of magnetic monopoles would have significant implications for the fundamental laws of physics, including Maxwell's equations and the structure of electromagnetism. However, until the existence of magnetic monopoles is experimentally confirmed, it is challenging to accurately predict the behavior or nature of their interactions.
It's worth noting that some theories, such as certain versions of Grand Unified Theories (GUTs) or string theory, propose the existence of magnetic monopoles as a consequence of a more fundamental theory. However, these theories are still highly speculative and require further experimental validation.
In summary, if positive and negative magnetic monopoles were to exist and interact, the resulting system would likely involve complex physics beyond the simple combination of charges. The exact nature of this interaction and the resulting composite system would depend on the underlying fundamental theory that describes the behavior of magnetic monopoles, which is currently an active area of research in theoretical physics.