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Method of Neutral Particle Mass Calculations from Bubble Chamber Images

I am looking into events within bubble chamber images and have come across a stumbling block. It relates to finding masses of neutral particles within bubble chamber images, specifically the mass of ...
SatinArmchair's user avatar
1 vote
2 answers
258 views

Why aren't Delta and Omega particles stable?

Not only are they not stable their half-life is in the nanoseconds. Why are they so different from protons?
Derek Seabrooke's user avatar
36 votes
5 answers
11k views

How do we know neutrons have no charge?

We observe that protons are positively charged, and that neutrons are strongly attracted to them, much as we would expect of oppositely charged particles. We then describe that attraction as non-...
MacThule's user avatar
  • 421
6 votes
2 answers
3k views

Why is the proton the only stable hadron?

The title pretty much explains the question, but I've always thought that it'd be a neutron because of its 0 charge.
radial9174's user avatar
4 votes
2 answers
721 views

What is the ratio of gluons to baryons?

Gluons bond quarks into baryons (i.e., protons and neutrons). For example, two up quarks and one down quark form a proton while one up quark and two down quarks form a neutron. Is there one gluon per ...
James Goetz's user avatar
3 votes
2 answers
1k views

Confusion in proton decay

I read that a proton cannot decay because it is the least massive baryon. However, in positron emission, the proton converts to a neutron a releases a positron. Is that considered a proton decay?
Omar Ali's user avatar
  • 756
6 votes
7 answers
5k views

Is it possible to destroy proton in proton-proton collision?

Or in proton-electron collision. To destroy is to turn into other particles, not baryons. In context of the baryon asymmetry.
voix's user avatar
  • 2,094