What Direct Evidence Do We Have That the Weak and Electromagnetic

question 62

Multiple Choice

What direct evidence do we have that the weak and electromagnetic forces were once unified as a single electroweak force?

• A)The most advanced telescopes are able to see back to this era in the universe.
• B)Detectors on Earth have received photons and high-energy particles from this era.
• C)Temperatures in the center of the Sun can reproduce the conditions during this era.
• D)Particle accelerators on Earth can reach energies equivalent to the high temperatures of this era and have produced particles predicted by the electroweak theory.
• E)We have no direct evidence of the electroweak force.

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