Hans Dieter Betz, born in 1940, is identified as a German experimental physicist. The provided text is a list of notable individuals named Hans-Dieter or Hans Dieter. It enumerates various figures across different fields, including opera, physics, sports, music, military aviation, journalism, diplomacy, and academia.

Within this list, two individuals named Hans Dieter Betz are mentioned. One is the experimental physicist born in 1940. Another is a German-born American scholar of the New Testament and Early Christianity, born in 1931. The source does not provide further details on the specific research or contributions of either individual, nor does it link them beyond their shared name and German heritage.