Note that no mention is made here of ElementaryParticle or CompositeParticle, because they play no role here. Note also that the Generalization from Baryon to Fermion has been omitted from display, because there might be baryons that are not just spin-1/2.

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Some more baryons (and even more baryons)

Notes

[CONVENTION, DISPLAY, MODELLING, STYLE, TIP]{STRONG} Webel: SysMLv1: Highly recommend creating a "focus" Block Definition Diagram (BDD) for each main Block with expanded feature details and relationships to at least nearest neighbours

[ASSERTION]{STRONG} When domain modelling with SysML, Generalization, inheritance, and even multiple inheritance are not "evil" and can be used relatively freely. We are not doing code-oriented Decorator patterns - an implementation choice - we are doing domain modelling!

[ASSERTION]{STRICT} In Webel Parsing Analysis elicited model elements MUST eventually be moved out of the 'source' (or '0-source') Package/Model zone and under a main project Package/Model area. (Use the owner display option to check.)

Snippets (quotes/extracts)

there are only two possible values for a spin-1/2 particle: sz = +1/2 and sz = -1/2. These correspond to quantum states in which the spin component is pointing in the +z or −z directions respectively, and are often referred to as "spin up" and "spin down"

Related slides (includes other tutorials)

The lepton Package Diagram so far

Related slides (backlinks, includes other tutorials)

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