Talk:Toroidal moment

AfC review comments
I'm not an expert in this area but the references are thorough and it looks great. I decided to name it toroidal moment because the article itself as well as most of the references (and even the Everything2 entry) refer to the topic as such. Dcoetzee 23:37, 22 February 2012 (UTC)

Comment + zero distance interaction
The recent edits have elevated the tone of this article, and improved the first impression of credibility substantially. Yet, the wording of the lead still needs a little work (the first sentence leaves one a bit confused, and the rest doesn't help much) – which I hope someone with a more natural understanding will be able to address.

A key point worth mentioning from the reference is that the toroidal moment does not result in interaction with free-space electromagnetic fields, only with current densities (I made this clearer in the Anapole dark matter section). This is quite anomalous, inasmuch as it makes it a zero-distance interaction, distinct from our normal perception of the electromagnetic interaction (which follows a power-law, depending on the order of the multipole). This characteristic possibly deserves a section to itself, and maybe a mention in the lead. — Quondum 12:00, 13 June 2013 (UTC)

"tree level ?"
Could someone please expand or attach references to the phrase "at tree level" in the section "Anapole dark matter"? I'm not a physicist, but still I would prefer to be able to understand what perspective is being referred to, without getting my Phd to make it my jargon. Does it mean "in interaction tree diagrams" within some particular theory context? or does it just mean "theoretical symmetries would imply that...". And thanks for this article ! jimswen (talk) 20:35, 17 October 2013 (UTC)