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Advanced Physics Homework Help
Compare & contrast properties of strong & weak interactions
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[QUOTE="Flucky, post: 4979882, member: 373056"] Hi all - in the question below I could do with some help on the "[I]..explanation for the relative strengths...[/I]" bit, as I can't think of anything to say. [B] 1. Homework Statement [/B] Compare and contrast the properties of the strong and weak interactions. Include in your account an explanation for the relative strengths of the interactions, the types of particles affected by each interaction and other distinguising characteristics. [h2]Homework Equations[/h2] - [h2]The Attempt at a Solution[/h2] Weak interactions can involve all leptons and quarks, and are mediated by W[SUP]±[/SUP] or Z bosons; whereas strong interactions can only involve quarks (binding them as hadrons) and are mediated by gluons. The strength of the weak interaction falls of with distance ([I]~10[SUP]-2[/SUP] at 10[SUP]-18[/SUP] m[/I] to [I]~10[SUP]-13[/SUP] at 10[SUP]-15[/SUP] m[/I]) which is opposite for the case of the strong interaction ([I]~1 at large distances[/I] to [I]<1 at small distances[/I]). [SIZE=4]Weak interactions can also violate conservation laws such as parity, strangeness and isospin - which the strong interaction cannot. The question is worth 4 marks (which I know doesn't mean much out of context) so I think I would need to cover the main aspects of each. As I said above I am not sure what to put for the explanation for the relative strengths.[/SIZE] Cheers. [/QUOTE]
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Compare & contrast properties of strong & weak interactions
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