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Post AspnJscM7NIUoUJ0IS by [email protected] |
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Post #AspABvtq8Rt4Smhf2u by [email protected] |
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HARDCORE PHYSICS POSTI'm belatedly trying to lessen my terrible ignorance o… |
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Post #AspDKW5JmdHorurAq8 by [email protected] |
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@johncarlosbaez I studied and worked with (one publication) the IBA model as p… |
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Post #AspDnuO6VKuidneu4u by [email protected] |
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@johncarlosbaez I used to be, for a short while, 35 years ago. I've complet… |
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Post #AspDnuWG11R535TPmq by [email protected] |
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@bazzargh - thanks, I'll check it out!It says:"The shell model reveals… |
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Post #AspEZSnuMbCkzWP8aG by [email protected] |
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@johncarlosbaezIf it's a spin term and an orbit term, I guess it's some… |
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Post #AspEx1oSMqkCEIthmC by [email protected] |
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@johncarlosbaez Like everyone else, I havenβt thought about this in. 40 years… |
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Post #AspF1n3Yev6juZEQls by [email protected] |
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@johncarlosbaez Is it just me or does he look like the guy in the white house? |
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Post #AspHkXWhRgkugZKQgS by [email protected] |
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@johncarlosbaez Because Evolution is not working on new top level layers... it … |
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Post #AspIhAGlYerbdmpX0q by [email protected] |
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@skewray @johncarlosbaez i think the model is saying that e.g. a neutron-neutro… |
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Post #AspIhANV9cFdyfyuVk by [email protected] |
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@imyxh - yes, the theory says a neutron-neutron pair must have spin 0 or 2 for … |
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Post #AspJmUbJUfPw6EXsXI by [email protected] |
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@johncarlosbaez I *was* a nuclear physicist -- of sorts -- like 30 years ago do… |
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Post #AspJuPHn8cXrvsBim8 by [email protected] |
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@imyxh - yes, I'm reading appendix A2 of https://www.walterpfeifer.ch/boson… |
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Post #AspKRUDnoB1SnR5zo8 by [email protected] |
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@bluegreenandfree @johncarlosbaezThe problem is that protons and neutrons are b… |
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Post #AspKRUKXP8PV8KFNJ2 by [email protected] |
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@pschwahn - "The number 0 or 2 apparently refers to some other kind of spi… |
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Post #AspLCGRCsEsFenfeK0 by [email protected] |
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@pschwahn -"The number 0 or 2 apparently refers to some other kind of spin… |
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Post #AspOAZXhAimuBzagOu by [email protected] |
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@johncarlosbaez Ah very nice! That's in line with what I figured. So for pe… |
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Post #AspPBEDq1eIqJRBBK4 by [email protected] |
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@imyxh @skewray > i think the model is saying that e.g. a neutron-neutron pa… |
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Post #AspTHxEbyzqVTE0Ie8 by [email protected] |
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@johncarlosbaez @imyxh This does seem like a lot of formalism, basis-choosing a… |
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Post #AspUrx7xxUmbW7cmqe by [email protected] |
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@johncarlosbaez @imyxh Of course this all assumes that, say, the protons in the… |
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Post #AspUrxELZlt3pubsnI by [email protected] |
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@pschwahn - Thanks, I like and understand your representation-theoretic argumen… |
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Post #AspWa6N53GBiskJHZw by [email protected] |
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@pschwahn - you're exactly right, and I should have said that for a particl… |
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Post #AspYrtJUXTm9VLF2yu by [email protected] |
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@dougmerritt @imyxh @skewray - I'm just trying to understand the Interactin… |
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Post #AspZ9kRaFp0bD0Xdmi by [email protected] |
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@johncarlosbaez @imyxh @skewray > It's pretty bold to hope that spin-0 a… |
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Post #AspaTjOTy3l1hLBR9E by [email protected] |
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@johncarlosbaez @imyxh @skewray BTW we know that you're working your way ar… |
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Post #AspfAxnGhm8wcveBaC by [email protected] |
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@johncarlosbaez Fair enough. It's probably reasonable to assume the lowest … |
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Post #Aspgk9sbrQxYCWUXWi by [email protected] |
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@pschwahn - I prefer to define fermions to be particles that satisfy this antis… |
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Post #AsphUHLsPc8chDAmZc by [email protected] |
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@dougmerritt - Actually I'm just excited by how representations of slightly… |
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Post #AspiNaJHcyW1Q9Kd60 by [email protected] |
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@pschwahn wrote: "Is there something like a valence shell for nucleons?&qu… |
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Post #AspmTGNh2FLTAOMEYy by [email protected] |
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@johncarlosbaez This is fascinating. So they follow the parastatistics approach… |
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Post #AspnDmJUdzblWWZbPs by [email protected] |
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@pschwahn - there was a widespread belief that any theory involving parastatist… |
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Post #AspnJscM7NIUoUJ0IS by [email protected] |
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@johncarlosbaez I recall hearing some British people really do say "nucula… |
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Post #Asq0RFkToYpDz4x3lA by [email protected] |
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@imyxh - thanks very much for that explanation! This seems like a concrete com… |
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Post #Asq4ygpQYLfnLMStV2 by [email protected] |
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@johncarlosbaez > SU(6) ... Iachello ... supersymmetric ... Cool.> By the… |
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Post #Asq5gnxTPECMCKGRFo by [email protected] |
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@johncarlosbaez > The question in my original post was: why 0 or 2, but not,… |
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Post #AsqFfb5Sm3OvWy42bY by [email protected] |
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@johncarlosbaez Hi John, maybe here you'll find help:https://mastodon.socia… |
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Post #AsqwBRwSVWHkVbiurw by [email protected] |
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@dougmerritt - sorry, I'll "delete and redraft" my post and add t… |
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Post #AsqwE8Y7472VEScKbg by [email protected] |
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@dougmerritt @imyxh @skewray - I mean simply that if you have a bunch of nucleo… |
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Post #Asr2Rx1bJDTLGkNdUu by [email protected] |
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@johncarlosbaez Perhaps you're aware, or that it's not interesting, but… |
