* Astronomy

Members Login
Username 
 
Password 
    Remember Me  
Home -> Astronomy News -> Physics News -> KATRIN experiment
Post Info TOPIC: KATRIN experiment
Blobrana


L

Posts: 131433
Date:
RE: KATRIN experiment
Permalink  
 

Title: Prediction for the neutrino mass in the KATRIN experiment from lensing by the galaxy cluster A1689
Authors: Theo M. Nieuwenhuizen, Andrea Morandi

The KATRIN experiment in Karlsruhe Germany will monitor the decay of tritium, which produces an electron-antineutrino. While the present upper bound for its mass is 2 eV/cē, KATRIN will search down to 0.2 eV/cē. If the dark matter of the galaxy cluster Abell 1689 is modelled as degenerate isothermal fermions, the strong and weak lensing data may be explained by degenerate neutrinos with mass of 1.5 eV/cē. Strong lensing data beyond 275 kpc put tension on the standard cold dark matter interpretation. In the most natural scenario, the electron antineutrino will have a mass of 1.5 eV/cē, a value that will be tested in KATRIN.

Read more   (840kb, PDF)



__________________
Blobrana


L

Posts: 131433
Date:
Permalink  
 

Title: Cosmological implications of the KATRIN experiment
Authors: Jostein R. Kristiansen, Oystein Elgaroy

The upcoming Karlsruhe Tritium Neutrino (KATRIN) experiment will put unprecedented constraints on the absolute mass of the electron neutrino, \mnue. In this paper we investigate how this information on \mnue will affect our constraints on cosmological parameters. We consider two scenarios; one where \mnue=0 (i.e., no detection by KATRIN), and one where \mnue=0.3eV. We find that the constraints on \mnue from KATRIN will affect estimates of some important cosmological parameters significantly. For example, the significance of n_s<1 and the inferred value of \Omega_\Lambda depend on the results from the KATRIN experiment.

Read more  (37kb, PDF)

__________________
Page 1 of 1  sorted by
 
Quick Reply

Please log in to post quick replies.
Home -> Astronomy News -> Physics News -> KATRIN experiment


Create your own FREE Forum
Report Abuse 		Powered by ActiveBoard