Function of W+, W- and Z bosons?

  • Context: Graduate 
  • Thread starter Thread starter FeDeX_LaTeX
  • Start date Start date
  • Tags Tags
    Bosons Function
Click For Summary

Discussion Overview

The discussion revolves around the functions of the W+, W-, and Z0 bosons, particularly in the context of beta decay and the weak interaction. Participants explore the roles these bosons play in particle interactions and decay processes, as well as clarify concepts related to beta decay.

Discussion Character

  • Exploratory
  • Technical explanation
  • Conceptual clarification
  • Debate/contested

Main Points Raised

  • Some participants assert that W+, W-, and Z0 bosons are the force carriers of the weak interaction, contrasting with the massless photon of the electromagnetic interaction.
  • One participant questions whether the W+, W-, and Z0 bosons are attracted to each other in a manner similar to atoms.
  • Another participant references a Feynman diagram illustrating a down quark decaying into an up quark and a W boson, raising questions about the nature of beta decay and the role of these bosons in particle transitions.
  • There is a discussion about the definition of beta decay, with one participant expressing confusion over its relationship to electrons and nucleons.
  • A participant provides links to external resources for further clarification on quark decay and beta decay processes.
  • One participant explains that at the quark level, beta decay involves a down quark decaying into an up quark, an electron, and an electron anti-neutrino, leading to a change in atomic number.

Areas of Agreement / Disagreement

Participants express varying levels of understanding regarding the functions of the W+, W-, and Z0 bosons and their roles in beta decay. There is no consensus on certain aspects, such as the attraction between these bosons or the precise nature of beta decay.

Contextual Notes

Some statements depend on specific definitions of beta decay and the interactions involved, which may not be universally agreed upon. The discussion includes unresolved questions about the implications of the weak interaction and the behavior of bosons.

FeDeX_LaTeX
Science Advisor
Messages
436
Reaction score
13
Hello;

What are the functions of the W+, W- and Z0 bosons? They are responsible for radioactive beta decay, but what do each of these bosons do?

Thanks.
 
Physics news on Phys.org
They are the force carriers of the weak interaction, just as the photon is the force carrier of the electromagnetic interaction. Because they are very massive, the weak interaction is a very short-range force, unlike the electromagnetic interaction, which is a long-range force because the photon is massless.
 
Last edited:
Okay. So the W+, W- and Z0 are all attracted to each other, then? Like in an atom?
 
I checked it out on hyperphysics and it gave a Feynman diagram which depicted a down quark is traveling along it splits into an up quark and a +W which then decays into an electron and electron neutrino. The description said this is what happens during beta decay but I always thought beta decay was dealing with electrons and alpha decay dealing with nucleons. So what is beta decay? Also what exactly are these bosons transmitting? Is it just a means of describing how a particle will start at A and arrive at B as our observations have shown? Sorry to hijack your thread but I think this is pertinant to your original post.

Joe
 
Hi;

I would like to know too. :)

Where is the picture you were talking about?
 
At the quark level, beta decay is as you described it, with a d quark decaying into a u quark, an electron, and an electron anti-neutrino. Converting the d quark into a u quark converts the neutron that the d quark is part of into a proton. This causes the nucleus that the neutron is into emit an electron (and it's associated neutrino) and increase in atomic number by 1. Note that even free neutrons decay via this path with a half life of about 10-15 minutes.
 

Similar threads

  • · Replies 23 ·
Replies
23
Views
5K
  • · Replies 7 ·
Replies
7
Views
3K
  • · Replies 3 ·
Replies
3
Views
4K
  • · Replies 7 ·
Replies
7
Views
2K
  • · Replies 1 ·
Replies
1
Views
3K
  • · Replies 4 ·
Replies
4
Views
5K
  • · Replies 11 ·
Replies
11
Views
4K
  • · Replies 3 ·
Replies
3
Views
3K
Replies
2
Views
3K
  • · Replies 5 ·
Replies
5
Views
3K