Probing physics beyond the Standard Model with ... - TU Dortmund

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Probing physics beyond the Standard Model with ... - TU Dortmund

Absolute neutrino masses

• Neutrinoless double beta decay: m ee = ∑ i U 2 ei m i < ∼ 1.0 eV

(=0.1-0.9 eV)? (Klapdor-Kleingrothaus et al. 2004)

→ test by next generation experiments

d

d

W

Uei

ν=ν

U

ei

W

P

L

u

e

m i +q

q

2−m P

e

u

2 L

i

Summary: neutrino mass spectrum

m 1 = 0 - 0.3 eV

m 2 = 0.007 - 0.3 eV

m 3 = 0.01 - 0.3 eV

(0.1-0.3 eV)

(0.1-0.3 eV)

(0.1-0.3 eV)

H.V. Klapdor-Kleingrothaus, H. Päs, A.Y. Smirnov Phys. Rev. D 63 (2001) 073005

H. Päs, T.J. Weiler, Phys. Rev. D 63 (2001) 113015

Heinrich Päs (TU Dortmund) Neutrinos & new physics Oxford 2008

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