What is the latest research on the Cosmic Neutrino Background?

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    Neutrino Neutrinos
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Discussion Overview

The discussion centers on recent research and developments regarding the Cosmic Neutrino Background (CNB), exploring its implications for cosmology and the early universe. Participants seek updated resources and insights beyond older literature.

Discussion Character

  • Exploratory
  • Technical explanation
  • Debate/contested

Main Points Raised

  • One participant expresses a need for more recent articles on the CNB, indicating their current reading is based on a four-year-old cosmology book.
  • Another participant suggests using the SPIRES database for accessing up-to-date research papers related to the CNB.
  • A participant shares a presentation on the CNB, noting the challenges in measuring neutrinos due to their weak interactions with matter, and raises a question about how different models of inflation or pre-big bang cosmology might predict variations in the CNB.
  • Another participant acknowledges the lack of predictions related to the CNB but expresses curiosity about potential findings.
  • A recent paper discussing neutrino effects in the early universe is shared, highlighting ongoing research in the field.
  • One participant finds the shared article informative but admits confusion regarding the concept of "half a neutrino."
  • A current article titled “Heart of the Matter” is mentioned, which discusses neutrinos and their potential role in explaining the universe's composition.

Areas of Agreement / Disagreement

Participants express curiosity and share resources, but there is no consensus on specific predictions or models related to the CNB. The discussion remains open-ended with multiple viewpoints and ongoing inquiries.

Contextual Notes

Some discussions reference the difficulty of measuring the CNB and the implications of different cosmological models, but these points remain unresolved and depend on further research.

Mordred
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I'm currently reading a cosmology book, the book is 4 years old. I am looking for more recent articles and developments on the subject. This is in the nature of supportive study material.
 
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Check out the SPIRES database at http://inspirehep.net/.
This listing is returned when I search for 'find t cosmic neutrino background'.

SPIRES is one of the leading databases of HEP, cosmology, and astrophysics papers on the web. It includes preprints as well, so you shouldn't need to search arXiv separately.
 
This is a good pResentation on the CNB .
www-physics.lbl.gov/seminars/old/Petr_Vogel.pdf
My understanding is that this would be extremley difficult to measure as neutrinos interact hardly at all with matter. But if we could iT would mean we had a probe of the universe when it was only a few seconds old. The Cmb shows us the uuniverse 380k years after the big bang. So it would be extremley interesting . I would like to know if different models of inflation or of pre big bang cosmology make different predictions about the CNB. Anyone know this?
 
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Thanks for the links I haven't seen any related predictions but wouldn't be surprised if their are some
 
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Here is a recent [like today] paper discussing neutrino effects in the early universe, What is half a neutrino? Reviewing cosmological constraints on neutrinos and dark radiation - http://arxiv.org/abs/1301.7102
 
That was a very informative article. Answered a few questions I had relating to the book I'm reading. Unfortunately I cannot answer what half a neutrino means lol.
 
See this current (26 January 2013) article “Heart of the Matter”
Neutrinos’ shifty behavior might help explain why the universe has so much stuff in it. (p. 18)

http://www.sciencenews.org/view/issue/id/347532/title/January_26_2013_Vol183_2
 

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