3 flavours

Kai Zuber, TUD

3 flavours

Status 2008

Neutrinos are guilty!!!

The expected neutrino flux is measured, but 60-70% of neutrinos have wrong flavour!!!

Survival probability today

Survival probability

Mattereffects

VVacuum

Borexino at Gran Sasso

300 t Liquid Scintillator−− +→+ ee xx νν

Real timedetection of7Be neutrinos

Borexino - First results

No history without future

SuperKSNO LETA (just published)

SNO+

KAMLAND

LENSCLEANMOONCOBRAXMASS

+ more...

Still no real time measurement of pp-neutrinos

Secrets of the Sun

Needs measurement of solar CNO neutrinos!

Fundamental test of stellar astrophysics: Are elements homogenously distributed in stars?

Status 2004

Helioseismology in fantastic agreementwith Solar Models

Change of elementalabundances

Asplund et al.2005

Measurement of pep, 8B, CNO (and if lucky pp) neutrinos in real timeSNO+

Xenon

Ultimate goal: Measure full solar neutrino spectrum in real time

Limitation of scintillator approach for pp-neutrinos: 14C content

Why not liquid noble gas detector (Xenon 1ton -10ton)

Usage of Xe depleted in 136Xe desirable(also for dark matter searches)

Kai Zuber, TUD

Detection- Inverse beta decay

Time coincidence positron annihilation and neutron capture

Kai Zuber, TUD

Results til 2000

Kai Zuber, TUD

KamLAND e + p e+ + n_

Kai Zuber, TUD

Reactor antineutrino spectrum

Kai Zuber, TUD

KamLAND

Kai Zuber, TUD

KamLAND - Results

Kai Zuber, TUD

KamLAND

Kai Zuber, TUD

KamLAND- Results

Oscillation status

Global 3 flavour fit

Kai Zuber, TUD

Next: Measurement of 13 angle

Reactor experiments

Double Chooz

Double Chooz- Layout

Double Chooz - Interior

K. Zuber

Double Chooz

LowNu 2011

Third „evidence“ for a non-zero θ13

Double Chooz - Sensitivity

Sensitivity - General

Oscillation - evidences

Atmospheric neutrinosSolar and reactor

sin2 2 = 1.00 , m2 = 2.5 10-3 eV2

sin2 2 = 0.81 , m2 = 8.2 10-5 eV2

Incredible progress in last 10-15 years !!!!

€

m2 = mi2 −m j

2depending on