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Is the weak and strong force the same force?

  1. Jan 29, 2009 #1
    Hello, I'm a novice in this field, but there is one thing I have been wondering about for a long time. Maby you could help me understand it?

    I think it must be enough to only use the quark-quark forces to describe all nuclear reactions, even things like n-> p+e+v, but it is perhaps a lot more complicated. The introduction of the W- particle as the carrier of the "force" seems not to be really a first principle force.

    d → u + W−
    W− → e− + νe

    I think, but correct me if I'm wrong, that a large energy amount could create something which looks like, or could be interpreted as a particle, the W- for instance. But if it is really a fundamental particle, why is it unstable?

    Is this only all about that it is more easy to use an "artificial" force rather than attacking it from first principles by using the real strong force? Cannot the properties of the weak interaction (I googled it) be understood in some kind of quantum dynamics in terms of the strong force? I guess it is complicated, but anyway it would be more satisfactory and pure.

    Thanks in advice,
  2. jcsd
  3. Jan 29, 2009 #2


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    Science Advisor
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    No, the weak force is connected to the electromagnetic force -> can be unified to electroweak force.

    Why is the strong force real and the weak force artificial?

    Also the particles W and Z have been observed, so the SU(2) - gauge theory is rigour, both in theory and experiment.
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