A Why Can't We Detect Cosmic Rays Beyond the GZK Limit?

Zuzana
Messages
12
Reaction score
1
Hello,
I would like to ask, why there cannot be detected cosmic rays with energies higher than ~ 10^20 eV, i.e. beyond the GZK limit?

Thanks a lot in advance for the answer.
 
Physics news on Phys.org
What have you found out? For example, did you look on Wikipedia? What was hard to understand?
 
  • Like
Likes phinds and ohwilleke
I do not understand why proton with energy > 50 EeV cannot interact with CMB, because there is a cosmic ray paradox and one of possible explanations is that neutrino and antineutrino interacts and create hadrons with extreme energies, is there for these extreme-energy CRs interaction with CMB or not?
 
That may be the longest sentence I have read in a while. I have a hard time parsing it, but you seem to have the sign of the limit backwards. High energy particles do interact with the CMB.
 
This is an alert about a claim regarding the standard model, that got a burst of attention in the past two weeks. The original paper came out last year: "The electroweak η_W meson" by Gia Dvali, Archil Kobakhidze, Otari Sakhelashvili (2024) The recent follow-up and other responses are "η_W-meson from topological properties of the electroweak vacuum" by Dvali et al "Hiding in Plain Sight, the electroweak η_W" by Giacomo Cacciapaglia, Francesco Sannino, Jessica Turner "Astrophysical...

Similar threads

Back
Top