Since the area will be proportional to the separation of the quark-antiquark pair, free quarks are suppressed.

I've read the papers you published on the isolation of free quarks.

"No one has seen really free quarks," Dr. Aronson said.

"We may have discovered a way of learning if the existence of free quarks is true."

The forces relax; free quarks never appear.

The failure of many searches for free quarks has shown that the elementary particles affected are not directly observable.

Several almost free quarks were produced and gave rise to the "jets" of tracks seen in the picture.

Thus free quarks are heavy and escape from detection.

But it requires a large amount of quarks, free quarks.

The failure of all experiments that have searched for free quarks is considered to be evidence for this phenomenon.