Question: Which American physicist and winner of the Nobel Prize in Physics in 1955 worked with Robert Retherford to perform the experiment that revealed Lamb shift?
Sentence (from "Willis Lamb"): Willis Eugene Lamb Jr. ( ; July 12, 1913 – May 15, 2008) was an American physicist who won the Nobel Prize in Physics in 1955 "for his discoveries concerning the fine structure of the hydrogen spectrum."
Relevant evidence: Yes