Collapsed Nuclei: Possible or Not?

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Discussion Overview

The discussion centers on the possibility of collapsed nuclei, referencing various theoretical models and historical hypotheses. Participants explore the implications of these models in the context of current understanding in particle physics and astrophysics.

Discussion Character

  • Exploratory
  • Debate/contested
  • Technical explanation

Main Points Raised

  • Some participants inquire about the current status of collapsed nuclei as a theoretical possibility.
  • One participant references a book discussing neutron stars and mentions Bodmner's hypotheses regarding two types of collapsed nuclei, one with strangeness and one without.
  • Another participant notes that attempts to detect or produce strangelets have failed, which may relate to the discussion on collapsed nuclei.
  • A detailed mass measurement of a heavy neutron star is mentioned as having ruled out most exotic types, though its direct relevance to collapsed nuclei is questioned.
  • There is uncertainty about the relevance of historical hypotheses from 1971 to current understanding, particularly regarding types of collapsed nuclei without strangeness.

Areas of Agreement / Disagreement

Participants express differing views on the relevance and possibility of collapsed nuclei, with no consensus reached on their current status or the implications of historical hypotheses.

Contextual Notes

The discussion reflects limitations in understanding the relationship between collapsed nuclei and current theoretical frameworks, as well as the dependence on definitions of strangeness and exotic matter.

SkepticJ
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Are collapsed nuclei, like are discussed in http://prd.aps.org/abstract/PRD/v4/i6/p1601_1" still thought to be possible?
 
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Interesting. When I googled, I got a google books link that let me look at this book: Neutron stars: Equation of state and structure, P. Haensel, Paweł Haensel, A. Y. Potekhin, D. G. Yakovlev. Apparently Bodmner had two separate types that he hypothesized, one with strangeness and one without. The WP article http://en.wikipedia.org/wiki/Strangelet may be helpful. All attempts to detect or produce strangelets have failed.
 
bcrowell said:
Interesting. When I googled, I got a google books link that let me look at this book: Neutron stars: Equation of state and structure, P. Haensel, Paweł Haensel, A. Y. Potekhin, D. G. Yakovlev. Apparently Bodmner had two separate types that he hypothesized, one with strangeness and one without. The WP article http://en.wikipedia.org/wiki/Strangelet may be helpful. All attempts to detect or produce strangelets have failed.
A detailed mass measurement of a heavy neutron star has ruled out most exotic types
http://blogs.physicstoday.org/update/2010/11/heaviest-neutron-star.html
Neat stuff.

I don't really understand how closely this relates to the "collapsed nuclei" paper, as I can only see the abstract right now, and it is unclear to me what they mean.
 
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bcrowell said:
Apparently Bodmner had two separate types that he hypothesized, one with strangeness and one without.

What about the kind without strangeness, still possible under current understanding? '71 was ages and revolutions ago in particle physics.
 

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