Quarreling about the smallest things imaginable

Please help me find a cartoon. I do not even know for sure that I saw
it in The New Yorker. I am guessing that I did, because it is the
kind of cartoon that would appear in The New Yorker, and because I
rarely see cartoons anywhere else.

The picture is of a (presumably married) couple in the midst of an
angry quarrel. The caption above the man is words to the effect of (I
am improvising somewhat here, because I don't remember exactly)
"Neutrinos, Pions, Tauons -- I can't take all these new-fangled
particles! Protons, neutrons and electrons are good enough for me!"
and the caption above the the woman is "How could I have ever loved a
man who doesn't know that the universe is made up of quarks and
leptons?". The text underneath the cartoon is (improvising again, I
do not recall the couple's name): "Lately, the Smiths had been arguing
about the smallest things imaginable".

Where can I find a copy of this cartoon? If it is not anywhere on the
World Wide Web (perhaps because it predated the era of widespread
scanning and uploading of published cartoons), please tell me the
issue where it appeared; I can then, presumably, go to a good library
and pull a copy of the magazine, and see it that way.

If you think that this topic is not of general interest to the readers
of this forum, please reply by e-mail to jay at m5 dot chicago dot il
dot us. Thank you in advance for any and all replies.