Comments on: Helicity, Chirality, Mass, and the Higgs https://www.quantumdiaries.org/2011/06/19/helicity-chirality-mass-and-the-higgs/ Thoughts on work and life from particle physicists from around the world. Mon, 19 Mar 2018 21:46:00 +0000 hourly 1 https://wordpress.org/?v=4.9.5 By: Hugo https://www.quantumdiaries.org/2011/06/19/helicity-chirality-mass-and-the-higgs/#comment-1128200 Sun, 07 Jan 2018 02:35:00 +0000 https://www.quantumdiaries.org/?p=10783#comment-1128200 I did understand your explanation, thanks. The only thing is that some times doble negatives make me a little confused. For instance “do not cause any charge non-conservation” I have to translate it into “do cause charge conservation” and hope it maintains its meaning. Thanks again for that wonderful explanation.

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By: Topor Alexandru https://www.quantumdiaries.org/2011/06/19/helicity-chirality-mass-and-the-higgs/#comment-1128149 Mon, 27 Nov 2017 21:13:00 +0000 https://www.quantumdiaries.org/?p=10783#comment-1128149 None really, the pairing in orbitals is simply a pairing of magnetic moments, helicity is defined for free electrons. Electron moving around a nucleus have both orbital angular momentum and spin angular momentum, but the direction of the spin vector is completely random for a simple paramagnetic atom.

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By: koun https://www.quantumdiaries.org/2011/06/19/helicity-chirality-mass-and-the-higgs/#comment-1122635 Thu, 15 Sep 2016 07:49:00 +0000 https://www.quantumdiaries.org/?p=10783#comment-1122635 I think having two RH 1/2 particles which has same charge +1 and call one positron another anti-electron is making non sense. There’s nothing like the colour (‘yellow, green’) you used to distinguish them in the real universe.
You don’t have RH 1/2 particle with charge = -1 and LH 1/2 particle with charge = +1 in your particle list – among the 4 particles you drew together, the two particles on the right side should flip their chirality and you could call them positron(LH) and anti-positron(RH).
Also change as:
refuses to talk to positrons (right-chiral positrons and left-chiral anti-positrons).
->
refuses to talk to positrons (left-chiral positron and right-chiral anti-positrons).

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By: Alone: bad. Friend: good! https://www.quantumdiaries.org/2011/06/19/helicity-chirality-mass-and-the-higgs/#comment-1121774 Tue, 19 Apr 2016 03:12:00 +0000 https://www.quantumdiaries.org/?p=10783#comment-1121774 “https://disqus.Com/by/thadroberts/comments/
Wow, thanks for that. Guess some people will always take things negatively. As an author I greatly appreciated all the feedback I got from others, catching my typos, letting me know which sections needed to be made clearer, etc. I really liked this article and can only assume that with all the work that went into it the author might be seeking feedback. Please try not to exercise your attacks without thinking it through. “

Study Says People Who Continually Point Out Typos Are ‘Jerks’

http://www.sciencealert.Com/people-who-constantly-pick-up-grammar-mistakes-are-kinda-jerks-scientists-find

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By: Alone: bad. Friend: good! https://www.quantumdiaries.org/2011/06/19/helicity-chirality-mass-and-the-higgs/#comment-1121716 Tue, 05 Apr 2016 20:41:00 +0000 https://www.quantumdiaries.org/?p=10783#comment-1121716 Study Says People Who Continually Point Out Typos Are ‘Jerks’

http://www.sciencealert.Com/people-who-constantly-pick-up-grammar-mistakes-are-kinda-jerks-scientists-find

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By: Thad Roberts https://www.quantumdiaries.org/2011/06/19/helicity-chirality-mass-and-the-higgs/#comment-1121712 Mon, 04 Apr 2016 15:53:00 +0000 https://www.quantumdiaries.org/?p=10783#comment-1121712 Great article! Slight typo… “Let us call this propagating particle is a “physical electron.” Change to “Let us call this propagating particle a “physical electron.”

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By: How can the weak force be not symmetrical? | On Reddit https://www.quantumdiaries.org/2011/06/19/helicity-chirality-mass-and-the-higgs/#comment-1121433 Thu, 21 Jan 2016 12:01:03 +0000 https://www.quantumdiaries.org/?p=10783#comment-1121433 […] tried reading through multiple explanations but it just doesnt click, perhaps due to a lack of background in […]

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By: How can the weak force be not symmetrical? – Internet and Tecnnology Answers for Geeks https://www.quantumdiaries.org/2011/06/19/helicity-chirality-mass-and-the-higgs/#comment-1121432 Thu, 21 Jan 2016 11:08:01 +0000 https://www.quantumdiaries.org/?p=10783#comment-1121432 […] tried reading through multiple explanations but it just doesnt click, perhaps due to a lack of background in […]

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By: Kevin https://www.quantumdiaries.org/2011/06/19/helicity-chirality-mass-and-the-higgs/#comment-1115787 Thu, 04 Dec 2014 19:58:00 +0000 https://www.quantumdiaries.org/?p=10783#comment-1115787 How many times per second does an electron at rest interact with the Higgs field? Is the interaction rate proportional to the rest mass of the particle? As a particle is accelerated does it interact less frequently from an inertial observer’s perspective? If so, is the change in interaction rate due just to time dialation or some other effect?

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By: Jakob https://www.quantumdiaries.org/2011/06/19/helicity-chirality-mass-and-the-higgs/#comment-1115786 Thu, 04 Dec 2014 12:45:00 +0000 https://www.quantumdiaries.org/?p=10783#comment-1115786 Hi Flip, now with your changes your text has become impossible to understand because you change your names halfway trough. As pointed out by Ivan you start with defining the positron as right-chiral. This way you define the usual Dirac spinors as left-chiral electron and left-chiral anti-positron. In addition, you point out that the electron and the antipositron have the same charge and chirality. I think you noticed that this can’t be correct, because during propagation something left-chiral mixes with something right-chiral. With your definitions from the beginning this is impossible, because everything right-chiral has positive charge and therefore we would have a mixing of charge during propagation. Therefore you use a new definition after the “important summary”. Then, there you define the positron as left-chiral and we can have a mixing of the electron (=left-chiral) with the anti-positron (right-chiral) without violating charge conservation. Anyway, then it becomes unclear what we write conventionally into the Dirac spinor and call electron and positron. I’m pretty sure you’re aware of all this, but rewriting would mean drawing lots of pictures again. Nevertheless a short remark may be in order, because things are really confusing right now.

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By: Ivan https://www.quantumdiaries.org/2011/06/19/helicity-chirality-mass-and-the-higgs/#comment-806562 Sat, 18 Oct 2014 18:57:03 +0000 https://www.quantumdiaries.org/?p=10783#comment-806562 You say here the positron has right-chiral: “Electrons (left-chiral) and positrons (right-chiral) are two completely different particles, as evidenced by the positron’s mustache.”
And you say here that it has left-chiral: “Positron: left-chiral, charge +1, cannot interact with the W”

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By: gary https://www.quantumdiaries.org/2011/06/19/helicity-chirality-mass-and-the-higgs/#comment-203936 Thu, 29 May 2014 23:53:21 +0000 https://www.quantumdiaries.org/?p=10783#comment-203936 Excellent explanation . So my question now is what exactly is the empirical evidence for separating an electron into two chiralities…Is there experimental evidence that one chirality ‘interacts” with the W ? Or is there some other evidence?
Thanks.

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By: Colin https://www.quantumdiaries.org/2011/06/19/helicity-chirality-mass-and-the-higgs/#comment-178488 Mon, 24 Mar 2014 17:18:44 +0000 https://www.quantumdiaries.org/?p=10783#comment-178488 You wrote: “There is no “rest frame” in which a massless particle is at rest. The analogy for this is driving on the freeway: if you are driving at the same speed as the car in the lane next to you, then it appears as if the car next to you is not moving (relative to you).”

I did a double-take on this paragraph, but I believe you simply switched from talking about massless particles (that you cannot catch up with) to massive particles (that you can).

I don’t believe I know a single fact about the weak force that isn’t weird.

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By: Walter https://www.quantumdiaries.org/2011/06/19/helicity-chirality-mass-and-the-higgs/#comment-172432 Sun, 09 Feb 2014 15:10:37 +0000 https://www.quantumdiaries.org/?p=10783#comment-172432 No need to reply to my previous message, if indeed anyone was going to.
I realise it’s a complex issue and I am following up on it using other sources etc, so hopefully it will understand it eventually.

Walter

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By: Walter https://www.quantumdiaries.org/2011/06/19/helicity-chirality-mass-and-the-higgs/#comment-172211 Fri, 07 Feb 2014 10:30:26 +0000 https://www.quantumdiaries.org/?p=10783#comment-172211 I just want to get it clear in my head what’s happening here!
The mixing that’s happening,it’s confusing to me,the naming

For example take the electron defined as the particle “as it is now”a mix between two quanta.
If it’s a mix, what actually are the two mixed particles, one can’t surely therefore be an electron as we NOW know it (as you suggest) which puts in doubt that the other particle is an anti-positron?
The properties of the mixed particle and each individual components that makes it up must also differ ?

I’ve been trying to get clarity on this since I doing a presentation on the Higgs and this part I can’t resolve, it’s almost if you don’t mind me saying, that your making it up ?

Walter

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