Size of helium nucleus measured more precisely than ever before

Re:Size of helium nucleus measured more precisely than ever ... by pmiller2 on Saturday January 30, 2021 @05:42AM (#25967995)

What is the calculated value? Is it even tractable to calculate it?

[ Parent | on HN ]

Re:Size of helium nucleus measured more precisely than ever ... by cmrx64 on Saturday January 30, 2021 @10:56PM (#25975743)

https://www.semanticscholar.org/paper/Evaluation-of-a-charac...

is the closest work i found in only a few minutes of lazy research on phone screen. “ab initio” is the phrase you can use to index into the literature on this topic.

[ Parent | on HN ]

Re:Size of helium nucleus measured more precisely than ever ... by pacamara619 on Saturday January 30, 2021 @09:47AM (#25969483)

Did you read the article?

"(...) the so- called mean charge radius of the helium nucleus is 1.67824 femtometers (...)"

[ Parent | on HN ]

Re:Size of helium nucleus measured more precisely than ever ... by pmiller2 on Saturday January 30, 2021 @03:21PM (#25972593)

That would be the measured value, not the calculated value.

[ Parent | on HN ]