Re: Anti Neutron ?


Tom Roberts schrieb:

josefmatz wrote:
What is difference between Neutron and Anti - Neutron ?

Experimentally, the way they decay:
n -> p + e + nubar_e
nbar -> pbar + e+ + nu_e

Theoretically, in their makeup of valence quarks:
n = u d d
nbar = ubar dbar dbar

(in all cases, bar indicates anti-particle, as usual)


Tom Roberts

or , in other words: the anti-neutron is the anti-particle of the
neutron, meaning that all its matter quantum numbers are the reversed
ones compared to the neutron. The electric charge is only one of the
matter quantum numbers. The beta decay, mentioned by Tom, demonstrates
this. Only particles which don't carry any matter quantum number (like
the photon or the neutral pion) can be identical to its anti-particle.

Regards, hawkwind

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