Breit Idea

Title: Breit Equation in Nuclear Physics
Victim: Marek Nowakowski

Here comes the experimentalist-on-theorist tough love.

16.03 Marek plans on being paced appropriately, but we’ll see, eh?
16.06 3 eqn. on second slide, including GR notation. Nope. Didn’t make it.
16.07 Shit 6-7 eqn. Ok, buckle in, kiddies. Rough ride ahead. Reaching for Excedrin.
16.08 "Bump-tail" parameter. Mind is wandering. And he hates experimentalists, clearly. What did we do to him? I'm searching my memory....
16.10 An eqn with 24 terms filling the slide. Are you serious? If you didn’t want me to pay attention, just write talk in red on blue or yellow on white, and I’ll get the picture. No need to be passive aggressive about it.
16.11 H atom: consider final size of proton (“one of the smallest known corrections”) To that big equation? Corrections to energy, apparently.
16.14 dE ~2.396E-9 eV for binding energy. Why do we care then??? So small!!
16.14 Confirms my assessment- sooooooo small. HOWEVER, QED corrections to recoil on order of E-9. Readiative recoil correction is E-11. Three loops E-15. Holy cow.
16.15 Hyperfine splitting 1S hyperfine frequency—precise enough to see correction due to finite size of proton… quoted as -37.7 kHz
16.16 Hardonic atoms”capture of ...” whoah- slide is gone. Will have to catch it on the wiki.
16.18 Electromagnetic binding of atoms corrections from strong int (shifts energy levels). Look- if you say "atoms" you imply that you are talking about the electrons, not the nucleons.
16.25 In summary, talked about nuclear finite-size effects arising due to electromagnetic form factors.
Ernesto asks about that article that was recently published in which the size of the proton was measured 4% off from expectations—Marek says they need a correction term. There is no time to clarify whether this is a matter of interpretting their data to extract the radius or if there was an issue elsewhere.