My debts to Bruno 1. Double beta decay

Rome Sept.11,2013 Ettore Fiorini My debts to Bruno 1 Then not “on fashion” (Few believed on lepton number non conservation) But important for the two of us

Experiments source = detector

48 48 - Ca => Ti + 2 e + ( 2ne ) Matheosian & Goldhaber

76 76 - Ge => Se + 2 e + ( 2ne ) E.Fiorini et al

Bruno =.> DSDL =2 vs =2

A comment by Mrs. Wu

Rome Sept.11,2013 Ettore Fiorini My debts to Bruno 2 The Meeting in KIEV and Balatonfured

Rome Sept.11,2013 Ettore Fiorini My debts to Bruno 3 2. My first approach to a Reactor

Neutrino oscillations?

A proposal for the Caorso reactor => no nuclear energy in Italy

Rome Sept.11,2013 Ettore Fiorini My debts to Bruno 4 3.Discussion on weak neutral currents in Balatonfured and Milano In Gargamelle some skeptical Carlo Franzitetti; Le correnti neutre le lascio a Fiorini Cabibbo & Maiani

Rome Sept.11,2013 Ettore Fiorini My debts to Bruno 5 3. The discovery of weak neutral currents n e ne ne ne

Z 0 Z0 p,n p,n p,n p,n

Rome Sept.11,2013 Ettore Fiorini My debts to Bruno 6 4.Solar neutrinos => the GALLEX experiment

Rome Sept.11,2013 Ettore Fiorini My debts to Bruno 7 Rome Sept.11,2013 Ettore Fiorini My debts to Bruno 8 Presentation at neutrino with Bruno

Rome Sept.11,2013 Ettore Fiorini My debts to Bruno 9 BRUNO returns to Italy !

Rome Sept.11,2013 Ettore Fiorini My debts to Bruno 10 Rome Sept.11,2013 Ettore Fiorini My debts to Bruno 11 The great suggestion of Bruno => Neutrino oscillations

Rome Sept.11,2013 Ettore Fiorini My debts to Bruno 12 Neutrino oscillations => Mna – Mnb ≠ 0

Rome Sept.11,2013 Ettore Fiorini My debts to Bruno 13 from Anisotropy cosmology μKn  nK

WMAP

Rome Sept.11,2013 Ettore Fiorini My debts to Bruno 14 DASI Direct measurement of the neutrino mass

b decay

Limite attuale < 2 eV

Rome Sept.11,2013 Ettore Fiorini My debts to Bruno 15 The second mystery of Ettore Majorana

Rome Sept.11,2013 Ettore Fiorini My debts to Bruno 16 Dirac or Majorana neutrino?

LEFT n:

RIGHT n:

→ → Majorana <= => =>1937

Rome Sept.11,2013 Ettore Fiorini My debts to Bruno 17 Rome Sept.11,2013 Ettore Fiorini My debts to Bruno 18 Rome Sept.11,2013 Ettore Fiorini My debts to Bruno 19 Where to go ?

Rome Sept.11,2013 Ettore Fiorini My debts to Bruno 20 Rome Sept.11,2013 Ettore Fiorini My debts to Bruno 21 0n 25 EXO T 1/2 (136Xe) > 1.6 × 10 yr correspond 140–380me KAMLAND-ZEN > 3.4 × 1025 yr (Fukushima) 120-250 GERDA I => 0.2 -0.4 eV Rome Sept.11,2013 Ettore Fiorini My debts to Bruno 22 Rome Sept.11,2013 Ettore Fiorini My debts to Bruno 23 CUORICINO CUORE0 CUORE

Rome Sept.11,2013 Ettore Fiorini My debts to Bruno 24 But Bruno was interested also in our problem of the Roman lead

Rome Sept.11,2013 Ettore Fiorini My debts to Bruno 25 A Roman “navis oneraria” sunk in Sardinia

Rome Sept.11,2013 Ettore Fiorini My debts to Bruno 26 Rome Sept.11,2013 Ettore Fiorini My debts to Bruno 27 Rome Sept.11,2013 Ettore Fiorini My debts to Bruno 28 Rome Sept.11,2013 Ettore Fiorini My debts to Bruno 29 Rome Sept.11,2013 Ettore Fiorini My debts to Bruno 30 AN INPORTANT RECENT RESULT ON NEUTRINO OSCILLATIONS

2 2 P(na - nb ) = sen q[1.27 Dm L(km)/E(GeV)]

Only q13 was missing !

After an indication by Double Chooz e Japan Risults from Orient: Daya Bay (China) and RENO (South Corea)

2 sin θ13 = 0.092 ± 0.016(stat) ± 0.005(syst) 2 sin θ13 = 0.103 ± 0:013(stat) ± 0:011(syst)

If Bruno would still be alive what a triumph for him!

Rome Sept.11,2013 Ettore Fiorini My debts to Bruno 31 A non conventional conclusion

An Italian and a Russian

Two examples : 1. The cabbage 2. The pioneers house The best week of my life

Mail by Samoel :

“Dear Ettore, Bruno died yesterday night in the Dubna Hospital. It is a great loss for our science and his friends. I worked with him for 22 years and still thank God for that”

Rome Sept.11,2013 Ettore Fiorini My debts to Bruno 32