Thread: mass of particles

Could there theoretically be an elementary particle that has a mass on the scale of macroscopic objects, such as one with a mass in the range of grams? It would probably decay extremely quickly (just look at the top quark), but could such a thing theoretically exist?

....And its this big but its hidden, or we dont know of it ever being here?

The heavier flavours of fundamental particles have all but decayed, but we still know of them.

Originally Posted by GhostofMaxwell

....And its this big but its hidden, or we dont know of it ever being here?

The heavier flavours of fundamental particles have all but decayed, but we still know of them.

But it's not big, in that way. It's only big in terms of mass, but it would be a fundamental particle, and thus point-like.

Originally Posted by Chemboy

But it's not big, in that way. It's only big in terms of mass, but it would be a fundamental particle, and thus point-like.

That was actually what I understood you meant by big when you said it was a gram. :wink:

...Mass obviously conserves, and with a mass that big its going to show-up amiss if its in front of our noses.

Even with neutrinos (which hardly interact with anything), we knew they were there.

We'll just have to wait and see if the Higgs-Boson is found then we might have something better than a stab in the dark.