The Standard Model of Particle Physics Predicts the Existence of Three

question 18

Multiple Choice

The standard model of particle physics predicts the existence of three families of elementary particles with four particles in each family. All of these particles have been confirmed experimentally except for the tau neutrino. Most physicists think the reason it has not been found is that

• A) it likely does not exist.
• B) no current particle accelerator can generate enough energy to create a tau neutrino.
• C) it is associated with the tau particle and the tau is difficult to trap.
• D) neutrinos are very difficult to detect.

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Definitions:

Collective Bargaining

The process in which employers and a group of employees negotiate the terms and conditions of employment, including wages, hours, work practices, and more.

Wildcat Strike

A labor strike unauthorized by the workers' union leadership, often spontaneous and occurring in direct response to grievances or disputes without formal union approval.

Authorization

The process of giving someone the right or power to do something, often through a formal or legal document.

Union

An organization formed by workers to protect their rights, improve working conditions, and negotiate with employers on wages and other employment terms.