My debts to Bruno

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1. Double beta decay

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

Then not “on fashion” (Few believed on lepton number non

conservation)

But important for the two of us

Experiments source = detector

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

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

Bruno =.> DSDL =2 vs =2

A comment by Mrs. Wu

Rome Sept.11,2013 2 Ettore Fiorini My debts to Bruno

The Meeting in KIEV and Balatonfured

Rome Sept.11,2013 3 Ettore Fiorini My debts to Bruno

2. My first approach to a Reactor

Neutrino oscillations?

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

Rome Sept.11,2013 4 Ettore Fiorini My debts to Bruno

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 5 Ettore Fiorini My debts to Bruno

3. The discovery of weak neutral currents

ne ne

p,n p,n

ne ne

Z0

Z0

p,n

p,n

Rome Sept.11,2013 6 Ettore Fiorini My debts to Bruno

4.Solar neutrinos => the GALLEX experiment

Rome Sept.11,2013 7 Ettore Fiorini My debts to Bruno

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Presentation at neutrino with Bruno

Rome Sept.11,2013 9 Ettore Fiorini My debts to Bruno

BRUNO returns to Italy !

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The great suggestion of Bruno => Neutrino oscillations

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

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Neutrino oscillations => Mna – Mnb ≠ 0

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

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CMB Anisotropy

μK nK

WMAP

DASI

<mn>from cosmology

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

Limite attuale < 2 eV

Direct measurement of the neutrino mass

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b decay

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

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The second mystery of Ettore Majorana

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

→ →

<= => Majorana =>1937

Dirac or Majorana neutrino?

RIGHT

LEFT

n:

n:

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Where to go ?

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

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EXO T0n1/2 (136Xe) > 1.6 × 1025 yr correspond <mn > 140–380me

KAMLAND-ZEN > 3.4 × 1025 yr (Fukushima) 120-250

GERDA I => 0.2 -0.4 eV Rome Sept.11,2013 22 Ettore Fiorini My debts to Bruno

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CUORICINO CUORE0 CUORE

Rome Sept.11,2013 24 Ettore Fiorini My debts to Bruno

But Bruno was interested also in

our problem of the Roman lead

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A Roman “navis oneraria” sunk in Sardinia

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After an indication by Double Chooz e Japan Risults

from Orient: Daya Bay (China) and RENO (South

Corea)

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P(na - nb ) = sen2q[1.27 Dm2 L(km)/E(GeV)] Only q13 was missing !

sin2 θ13 = 0.092 ± 0.016(stat) ± 0.005(syst)

sin2 θ13 = 0.103 ± 0:013(stat) ± 0:011(syst)

AN INPORTANT RECENT RESULT ON NEUTRINO OSCILLATIONS

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

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

A non conventional conclusion

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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”