The Hunt For Exotic mesons

Jesse Gunter
Idaho State University
Undergraduate Student of Physics


The Standard Model is the current physics model of the universe.  In many cases it makes predictions that are so precise that they are beyond our ability to measure them.  Quantum ChromoDynamics is the part of the standard model that deals with the interactions between quarks.  The e852 experiment at Brookhaven, New York is all about looking for particle that even though they are not yet explained by the standard model they are not forbidden by it either.  
Normal mesons are made up of an quark and an antiquark pair.  This combination allows only certain allowed quantum number combinations of charge, spin, and parity.  Exotic mesons are those that have other quantum number combinations.  These particles are most likely exited states of normal mesons, four quark and or antiquark states, or glueballs.