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2. Doublet–triplet splitting problem - Wikipedia

   en.wikipedia.org/wiki/Doublet–triplet_splitting...

   In particle physics, the doublet–triplet (splitting) problem is a problem of some Grand Unified Theories, such as SU(5), SO(10), and . Grand unified theories predict Higgs bosons (doublets of S U ( 2 ) {\displaystyle SU(2)} ) arise from representations of the unified group that contain other states, in particular, states that are triplets of ...

3. Doublet state - Wikipedia

   en.wikipedia.org/wiki/Doublet_state

   In quantum mechanics, a doublet is a composite quantum state of a system with an effective spin of 1/2, such that there are two allowed values of the spin component, −1/2 and +1/2. Quantum systems with two possible states are sometimes called two-level systems .

4. Singlet state - Wikipedia

   en.wikipedia.org/wiki/Singlet_state

   The ability of positronium to form both singlet and triplet states is described mathematically by saying that the product of two doublet representations (meaning the electron and positron, which are both spin-1/2 doublets) can be decomposed into the sum of an adjoint representation (the triplet or spin 1 state) and a trivial representation (the ...

5. Template:Split portions - Wikipedia

   en.wikipedia.org/wiki/Template:Split_portions

   Use this template to suggest that portions of this article be split out into another article. Template parameters [Edit template data] This template prefers inline formatting of parameters. Parameter Description Type Status Month and year date The month and year that the template was placed (in full). "{{subst:CURRENTMONTHNAME}} {{subst:CURRENTYEAR}}" inserts the current month and year ...

6. Multiplicity (chemistry) - Wikipedia

   en.wikipedia.org/wiki/Multiplicity_(chemistry)

   The triplet consists of three states with spin components +1, 0 and –1 along the direction of the total orbital angular momentum, which is also 1 as indicated by the letter P. The total angular momentum quantum number J can vary from L+S = 2 to L–S = 0 in integer steps, so that J = 2, 1 or 0.

7. Wikipedia:Template index/Splitting - Wikipedia

   en.wikipedia.org/wiki/Wikipedia:Template_index/...

   Place the template at the top of the page for which the split is proposed. By default, the discussion is directed to the talk page of the page on which this tag is placed. Optionally, |discuss= can be added to direct the discussion to another page. Example: {{split|discuss=Talk:Foobar#Split proposal}}, produces:

8. Multiplet - Wikipedia

   en.wikipedia.org/wiki/Multiplet

   A spin singlet is a trivial representation, a spin doublet is a fundamental representation and a spin triplet is in the vector representation or adjoint representation. In QCD, quarks are in a multiplet of SU(3), specifically the three-dimensional fundamental representation.

9. Template:Office document file formats - Wikipedia

   en.wikipedia.org/wiki/Template:Office_document...

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