1.   Modern accelerators tend to be rather large machines to produce the very high energy particles required to produce new particles.

2.   A new particle like the leptoquark would be such a crack.

3.   It is still not clear, however, that all new particles being regulated are equally dangerous.

4.   Similar mechanisms presumably connect all the other universal fields, many of which have yet to be discovered, perhaps with the help of powerful new particle accelerators.

5.   Showers of new particles tear through the millions of eyes, the billions of circuits, their passing recorded in the finest detail.

6.   That theory solves many of those problems, at the expense of positing the existence of new particles, called supersymmetric partners, for each of the known particles.

7.   The arrival of a new particle is exciting, important and easy to understand.

8.   The collisions between protons and the nuclei of copper atoms produce sprays of new particles, some of which are antiprotons.

9.   The Environmental Protection Agency is considering new particle pollution rules and is expected to propose one covering small-particle pollution by November.

10.   The history of physics is filled with stories in which theorists needed a new particle to satisfy their sense of aesthetics, and nature went on to oblige.