In physics, a field particle, messenger particle, force mediator, or force carrier, is what transmits each of the forces of the universe, by acting to change the behavior of the entity that it interacts with. [1] A field particle, technically known as a boson, comes in four varieties: gluons, photons, intermediate vector bosons (W and Z varieties), and a fifth hypothetical particle called the graviton which is believed to transmit the force of gravity.

Human chemistry
In respect to the forces that bind people (human molecules) into associations, the distinction of primary and secondary field particles facilitates dissection and examination of the operational aspects of the human chemical bond. [2]

References
1. (a) Zee, A. (2003). Quantum Field Theory, (ch. 1.4: “From Field to Particle to Force”, pgs. 24-29). Princeton University Press.
(b) What is the World Made of? (section: Forces) - FermiLab.
2. Thims, Libb. (2007). Human Chemistry (Volume One) (pg. 195). Morrisville, NC: LuLu.

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