Anomaly-driven Decay of Massive Vector Bosons

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Discussion Overview

The discussion revolves around the decay of massive vector bosons, specifically focusing on the implications of recent research articles and theoretical models. Participants explore the decay mechanisms of charmonium and Z0 bosons, referencing various papers and their findings while addressing the complexities involved in these decay processes.

Discussion Character

  • Exploratory
  • Technical explanation
  • Debate/contested

Main Points Raised

  • Some participants mention a recent arXiv paper discussing the decay of charmonium via three virtual gluons, which reportedly does not align well with experimental results.
  • Others propose an alternative view suggesting that the decay could be better understood through two virtual photons via an anomaly.
  • One participant is sketching a note on the implications of Z0 decay, noting a potential minimum decay condition related to the Weinberg angle and GUT angle, although they express uncertainty about its novelty in the literature.
  • There is a discussion about the acceptance and subsequent removal of a paper from arXiv, with participants expressing confusion over the criteria for submission and acceptance.
  • Clarifications are made regarding the notation used in one of the papers, specifically about the "T" matrix and its relation to SU(5) grand unified theory, with some participants acknowledging the lack of clarity in the original text.

Areas of Agreement / Disagreement

Participants express various viewpoints on the decay mechanisms and the implications of the research, with no consensus reached on the best approach or understanding of the phenomena discussed. Disagreements exist regarding the clarity and acceptance of research submissions, as well as the interpretations of theoretical constructs.

Contextual Notes

Some participants note limitations in their understanding of the arXiv submission process and the specific technical details of the decay mechanisms, indicating that their knowledge may be outdated or incomplete.

marcus
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Yep, it is partly another derivative of the numeric thread, and partly of the recent article of MacGregor.

According my documentation, which could be ten years outdated in this topic, the decay of charmonium, when calculated via three virtual gluons, does not approach very well the experimental results. The article proposes to see it via two virtual photons via the anomaly.
 
By the way, the review of Z0 decay has some nice implications, I am sketching a brief note about it.
 
arivero said:
By the way, the review of Z0 decay has some nice implications, I am sketching a brief note about it.

OK it is http://dftuz.unizar.es/~rivero/research/0507169.pdf from ArXiV. It could be that the stated result, that for any charge content of the theory Z0 decay is minimum when Weinberg angle equal to the GUT angle, were already known, but I am unaware of it.

I have shown the comment to some more knowledge sources, and it seems that it does not appear in the literature, albeit surely "is just a curiousity, but it is sort of amusing".

On other hand, it is true that my writting style was very imprecise, so perhaps it has contributed to raise the rejection flag at ArXiV.
 
Last edited by a moderator:
arivero said:
OK it is ...http://dftuz.unizar.es/~rivero/research/0507169.pdf ... Going back to business as usual, it has been http://dftuz.unizar.es/~rivero/research/0507169.arxiv.txt ... removed from ArXiV. It could be that the stated result, that for any charge content of the theory Z0 decay is minimum when Weinberg angle equal to the GUT angle, were already known, but I am unaware of it.

It is beyond my ken what is going on. I don't understand the business of arxiv accepting and posting something and then removing it. Technically I also don't understand the issues, I just flagged the previous paper (...144) because i saw that it was by you and other people here might like to know.
 
Last edited by a moderator:
No, no, the new paper, "Ah, that 3/8", has been retired, ie it was accepted by the robot, rejected in pre-posting revision by some human. The one you flagged, Marcus, is still there. The funny thing is that I expected the contrary result.

I have edited the previous comment to avoid this misunderstanding. BTW, the ArXiV management has been able to answer fast this time, and they have got the right nail: "This repository is only for self-contained research results. Your attempted submission does not appear to be a substantive research document. " It is true, I am always too lazy to write self-contained documents.
 
Last edited:
arivero said:
I am always too lazy to write self-contained documents.

For instance the "T" in your paper. Is it a 5x5 matrix related to the generators
of the SU(5) grand unified theory of Georgi and Glashow? Which combines both
the 3x3 Gell-Mann and the 2x2 Pauli Matrices. (I only have Zee, ref 2)

It's not "directly evident" from the text. :smile:


Regards, Hans.
 
Hans de Vries said:
For instance the "T" in your paper. Is it a 5x5 matrix related to the generators
of the SU(5) grand unified theory of Georgi and Glashow?
Blame part on me, part on Zee's book... actually it is T3, the third component of isospin. It is 0 for the Right fermions, +1/2 for u,\nu and -1/2 for d, e. Or so :rolleyes:
 

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