Jump to content

Neutrino Lower-Bound Mass Derivation?

frazzle
in Modern and Theoretical Physics

Featured Replies

I was wondering if anyone could help clarify this problem I am having.

 

Upon reading a section in a paper, I am a bit stuck as to how this value of the lower bound of the neutrino mass is reached here. I have highlighted the relevent part in the snapshot below:

 

 

http://img487.imageshack.us/img487/3873/neutrinomass3fk.jpg

 

 

Is there something missing from this passage, or am I just missing something blindingly obvious? I can't seem to understand how the two squared mass differences coupled with the assumption of hierarchy lead to the quoted value!

 

in case you're curious, the paper is:

 

http://www.arxiv.org/PS_cache/astro-ph/pdf/0407/0407207.pdf

 

thank you!

Archived

This topic is now archived and is closed to further replies.

Go to topic listing

Important Information

We have placed cookies on your device to help make this website better. You can adjust your cookie settings, otherwise we'll assume you're okay to continue.

Configure browser push notifications
Chrome (Android)
  1. Tap the lock icon next to the address bar.
  2. Tap Permissions → Notifications.
  3. Adjust your preference.
Chrome (Desktop)
  1. Click the padlock icon in the address bar.
  2. Select Site settings.
  3. Find Notifications and adjust your preference.