Measurement of the double-beta decay half-life and search for the neutrinoless double-beta decay of 48Ca with the NEMO-3 detector
R. Arnold
(1)
,
C. Augier
(2)
,
A. M. Bakalyarov
,
J. D. Baker
,
A. S. Barabash
,
A. Basharina-Freshville
,
S. Blondel
(2)
,
S. Blot
,
M. Bongrand
(2)
,
V. Brudanin
,
J. Busto
(3)
,
A. J. Caffrey
,
S. Calvez
(2)
,
M. Cascella
,
C. Cerna
(4)
,
J. P. Cesar
,
A. Chapon
(5)
,
E. Chauveau
,
A. Chopra
,
D. Duchesneau
(6)
,
D. Durand
(5)
,
V. Egorov
,
G. Eurin
(2)
,
J. J. Evans
,
L. Fajt
,
D. Filosofov
,
R. Flack
,
X. Garrido
(2)
,
H. Gómez
(2)
,
B. Guillon
(5)
,
P. Guzowski
,
R. Hodák
,
A. Huber
(4)
,
P. Hubert
(4)
,
C. Hugon
(4)
,
S. Jullian
(2)
,
A. Klimenko
,
O. Kochetov
,
S. I. Konovalov
,
V. Kovalenko
,
D. Lalanne
(2)
,
K. Lang
,
V. I. Lebedev
,
Y. Lemière
(5)
,
T. Le Noblet
(6)
,
Z. Liptak
,
X. R. Liu
,
P. Loaiza
(2)
,
G. Lutter
(4)
,
F. Mamedov
,
C. Marquet
(4)
,
F. Mauger
(5)
,
B. Morgan
,
J. Mott
,
I. Nemchenok
,
M. Nomachi
,
F. Nova
,
F. Nowacki
(1)
,
H. Ohsumi
,
R. B. Pahlka
,
F. Perrot
(4)
,
F. Piquemal
(4, 7)
,
P. Povinec
,
P. Přidal
,
Y. A. Ramachers
,
A. Remoto
(6)
,
J. L. Reyss
(8)
,
B. Richards
,
C. L. Riddle
,
E. Rukhadze
,
N. I. Rukhadze
,
R. Saakyan
,
R. Salazar
,
X. Sarazin
(2)
,
Yu. Shitov
,
L. Simard
(9, 2)
,
F. Šimkovic
,
A. Smetana
,
K. Smolek
,
A. Smolnikov
,
S. Söldner-Rembold
,
B. Soulé
(4)
,
I. Štekl
,
J. Suhonen
,
C. S. Sutton
,
G. Szklarz
(2)
,
J. Thomas
,
V. Timkin
,
S. Torre
,
Vl. I. Tretyak
,
V. I. Tretyak
,
V. I. Umatov
,
I. Vanushin
,
C. Vilela
,
V. Vorobel
,
D. Waters
,
S. V. Zhukov
,
A. Žukauskas
1
IPHC -
Institut Pluridisciplinaire Hubert Curien
2 LAL - Laboratoire de l'Accélérateur Linéaire
3 CPPM - Centre de Physique des Particules de Marseille
4 CENBG - Centre d'Etudes Nucléaires de Bordeaux Gradignan
5 LPCC - Laboratoire de physique corpusculaire de Caen
6 LAPP - Laboratoire d'Annecy de Physique des Particules
7 LSM - UMR 6417 - Laboratoire Souterrain de Modane
8 LSCE - Laboratoire des Sciences du Climat et de l'Environnement [Gif-sur-Yvette]
9 IUF - Institut Universitaire de France
2 LAL - Laboratoire de l'Accélérateur Linéaire
3 CPPM - Centre de Physique des Particules de Marseille
4 CENBG - Centre d'Etudes Nucléaires de Bordeaux Gradignan
5 LPCC - Laboratoire de physique corpusculaire de Caen
6 LAPP - Laboratoire d'Annecy de Physique des Particules
7 LSM - UMR 6417 - Laboratoire Souterrain de Modane
8 LSCE - Laboratoire des Sciences du Climat et de l'Environnement [Gif-sur-Yvette]
9 IUF - Institut Universitaire de France
A. M. Bakalyarov
- Function : Author
J. D. Baker
- Function : Author
A. S. Barabash
- Function : Author
A. Basharina-Freshville
- Function : Author
S. Blot
- Function : Author
V. Brudanin
- Function : Author
A. J. Caffrey
- Function : Author
M. Cascella
- Function : Author
J. P. Cesar
- Function : Author
E. Chauveau
- Function : Author
A. Chopra
- Function : Author
V. Egorov
- Function : Author
J. J. Evans
- Function : Author
L. Fajt
- Function : Author
D. Filosofov
- Function : Author
R. Flack
- Function : Author
P. Guzowski
- Function : Author
R. Hodák
- Function : Author
A. Klimenko
- Function : Author
O. Kochetov
- Function : Author
S. I. Konovalov
- Function : Author
V. Kovalenko
- Function : Author
K. Lang
- Function : Author
V. I. Lebedev
- Function : Author
Z. Liptak
- Function : Author
X. R. Liu
- Function : Author
F. Mamedov
- Function : Author
B. Morgan
- Function : Author
J. Mott
- Function : Author
I. Nemchenok
- Function : Author
M. Nomachi
- Function : Author
F. Nova
- Function : Author
H. Ohsumi
- Function : Author
R. B. Pahlka
- Function : Author
P. Povinec
- Function : Author
P. Přidal
- Function : Author
Y. A. Ramachers
- Function : Author
B. Richards
- Function : Author
C. L. Riddle
- Function : Author
E. Rukhadze
- Function : Author
N. I. Rukhadze
- Function : Author
R. Saakyan
- Function : Author
R. Salazar
- Function : Author
Yu. Shitov
- Function : Author
F. Šimkovic
- Function : Author
A. Smetana
- Function : Author
K. Smolek
- Function : Author
A. Smolnikov
- Function : Author
S. Söldner-Rembold
- Function : Author
I. Štekl
- Function : Author
J. Suhonen
- Function : Author
C. S. Sutton
- Function : Author
J. Thomas
- Function : Author
V. Timkin
- Function : Author
S. Torre
- Function : Author
Vl. I. Tretyak
- Function : Author
V. I. Tretyak
- Function : Author
V. I. Umatov
- Function : Author
I. Vanushin
- Function : Author
C. Vilela
- Function : Author
V. Vorobel
- Function : Author
D. Waters
- Function : Author
S. V. Zhukov
- Function : Author
A. Žukauskas
- Function : Author
Abstract
The NEMO-3 experiment at the Modane Underground Laboratory investigates the double-beta decay of 48Ca. Using 5.25 yr of data recorded with a 6.99 g sample of 48Ca, approximately 150 double-beta decay candidate events are selected with a signal-to-background ratio greater than 3. The half-life for the two-neutrino double-beta decay of 48Ca is measured to be T1/2 2 ν=[6. 4-0.6+0.7(stat)-0.9 +1.2(syst ) ]×1 019 yr . A search for neutrinoless double-beta decay of 48Ca yields a null result, and a corresponding lower limit on the half-life is found to be T1/2 0 ν>2.0 ×1 022 yr at 90% confidence level, translating into an upper limit on the effective Majorana neutrino mass of ⟨mβ β⟩<6.0 - 26 eV , with the range reflecting different nuclear matrix element calculations. Limits are also set on models involving Majoron emission and right-handed currents.
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