Two Baryons Interact to Produce Pions Only, the Original Baryons

question 4

Multiple Choice

Two baryons interact to produce pions only, the original baryons disappearing.One of the baryons must have been:

• A)a proton
• B)an omega minus
• C)a sigma
• D)an antiparticle
• E)none of these

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Definitions:

Radiolarians

Those actinopods that secrete elaborate shells of silica (glass).

Axopods

Long, filamentous, cytoplasmic projections characteristic of actinopods.

Silica Shells

Rigid, protective, outer coverings made of silica found in certain algae and microscopic aquatic organisms, such as diatoms.

Algal Endosymbionts

Algae living within the cells or body cavities of another organism in a mutualistic relationship, contributing to the host's nutrition, especially in corals and some marine animals.