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From	Message
pawntificator 13-Mar-25, 00:31	Did you know that The more you know...
lord_shiva 13-Mar-25, 14:55	Antihyoerhelium I pondered if other baryons could exist in atomic nuclei besides neutrons and protons. Any three quarks or antiquarks form a baryon, whereas a quark/antiquark pair are required to make a meson. There are six quark (and six antiquarks), though the top quark does not play well with the others. It exists too briefly to join siblings in meson or baryon formation. Anyway, up quark and down quark combinations form protons and neutrons. Proton = UUD, Neutron is UDD. The up quark has a 2/3 charge, the down quark a -1/3. So the sum of the three charges is 1. On the neutron the charge sum is zero. Like the down quark, the strange quark also has a -1/3 charge. Lambda nought is a baryon more massive than a neutron comprised of an up, down, and strange quark. Sigma nought is comprised of the same three quarks but possesses a slightly greater mass. Anyway, how a neutron in helium 4 (two protons, two neutrons) gets replaced by a lambda nought baryon remains a mystery to me, but the resulting element is called hyper helium. CERN apparently produced anti hyper helium, a helium nucleus formed by two protons, a neutron, and this strange quark lambda nought baryon. The neutron half life is ten minutes 11 seconds, after which a down quark flips to an up quark. The new baryon becomes a stable proton, with a high speed electron carrying off the charge and a neutrino departs with the remainder of the excess energy. My question thus is does a lambda nought partaking in nuclear activity (strong nuclear interaction binds protons and neutrons in the nucleus) extend its half life the way neutrons become apparently stable?
lord_shiva 13-Mar-25, 14:59	Antihyperhelium The o should have been a p. Hyperelements initially were the heavier transient transuranics. But I don’t mind the appellation extended to lighter elements formed by oddball baryons.
mo-oneandmore 15-Mar-25, 13:17	Shiva Although the count of known Baryon's has increased dramatically and almost anything can happen, my thinking is that IF baryons had produced more than two atomic nuclei, a universe as we know it would not have existed and life as we know it would have been a bit different --- talk about 4-eyed monstrosities and weird looking dudes, huh?
mo-oneandmore 15-Mar-25, 13:23	Here's a modern baryon list en.wikipedia.org
lord_shiva 15-Mar-25, 20:43	List Thanks, your list has more info than mine. You will find my list in an appendix of the book. I created my list by drawing up all three quark combinations, and then crossing out the Ts (top quark). Then I found more properties, the names and symbols, and added those. And masses, but I omitted the half-lives, and the other columns in that table. I may go back to add decay modes. I kind of want the charge, but those should be easy to determine. A quick guess makes Q (e) the charge? Some baryons have multiple states, like lambda nought and sigma something, which gives the same three quarks different masses. Très bizarre.
victoriasas 23-Mar-25, 22:47	@pawntificator I was about to ask where you disappeared to. Now I don’t have to.

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