How massive are the largest (dimensionally) particles?

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how massive are the largest (dimensionally) particles?
 
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If you mean sub-atomic particles. One of the heavier ones are W+, W- and Z_0. These are vectorbosons and their mass is approx. 180,000 m_e (electron mass). Vectorboson are responsible for the electroweak forces.
 
Yes, sub-atomic or inter-stellar particles.
 

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