ARNOLD, R.; AUGIER, C.; BARABASH, A.S.; BASHARINA-FRESHVILLE, A.; BLONDEL, S.; BLOT, S.; BONGRAND, M.; BOURSETTE, D.; BRUDANIN, V.; BUSTO, J.; CAFFREY, A.J.; CALVEZ, S.; CASCELLA, M.; CERNA, C.; CESAR, J.P.; CHAPON, A.; CHAUVEAU, E.; CHOPRA, A.; DAWSON, L.; DUCHESNEAU, D.; DURAND, D.; EGOROV, V.; EURIN, G.; EVANS, J.J.; FAJT, L.; FILOSOFOV, D.; FLACK, R.; GARRIDO, X.; GÓMEZ, H.; GUILLON, B.; GUZOWSKI, P.; HODÁK, R.; HUBER, A.; HUBERT, P.; HUGON, C.; JULLIAN, S.; KLIMENKO, A.; KOCHETOV, O.; KONOVALOV, S.I.; KOVALENKO, V.; LALANNE, D.; LANG, K.; LEMIÈRE, Y.; LE NOBLET, T.; LIPTAK, Z.; LIU, X.R.; LOAIZA, P.; LUTTER, G.; MACOLINO, C.; MAMEDOV, F.; MARQUET, C.; MAUGER, F.; MORGAN, B.; MOTT, J.; NEMCHENOK, I.; NOMACHI, M.; NOVA, F.; NOWACKI, F.; OHSUMI, H.; PAHLKA, R.B.; PATRICK, C.; PERROT, F.; PIQUEMAL, F.; POVINEC, P.; PŘIDAL, P.; RAMACHERS, Y.A.; REMOTO, A.; REYSS, J.L.; RIDDLE, C.L.; RUKHADZE, E.; RUKHADZE, N.I.; SAAKYAN, R.; SALAZAR, R.; SARAZIN, X.; SHITOV, Yu.; SIMARD, L.; ŠIMKOVIC, F.; SMETANA, A.; SMOLEK, K.; SMOLNIKOV, A.; SÖLDNER-REMBOLD, S.; SOULÉ, B.; ŠTEKL, I.; SUHONEN, J.; SUTTON, C.S.; SZKLARZ, G.; THOMAS, J.; TIMKIN, V.; TORRE, S.; TRETYAK, Vl.I.; TRETYAK, V.I.; UMATOV, V.I.; VANUSHIN, I.; VILELA, C.; VOROBEL, V.; WATERS, D.; XIE, F.; ŽUKAUSKAS, A.

doi:10.1140/epjc/s10052-018-6295-x

Métadonnées

Afficher la notice complète

Licence d’utilisation du document

ARNOLD, R.
Institut Pluridisciplinaire Hubert Curien [IPHC]

AUGIER, C.
Laboratoire de l'Accélérateur Linéaire [LAL]

BARABASH, A.S.

Langue

Article de revue

Ce document a été publié dans

European Physical Journal C: Particles and Fields. 2018, vol. 78, n° 10, p. 821

Springer Verlag (Germany)

Résumé en anglais

Using data from the NEMO-3 experiment, we have measured the two-neutrino double beta decay ( $2\nu \beta \beta $ ) half-life of$^{82}$ Se as $T_{\smash {1/2}}^{2\nu } \!=\! \left[ 9.39 \pm 0.17\left( \text{ stat }\right) \pm 0.58\left( \text{ syst }\right) \right] \times 10^{19}$ y under the single-state dominance hypothesis for this nuclear transition. The corresponding nuclear matrix element is $\left| M^{2\nu }\right| = 0.0498 \pm 0.0016$ . In addition, a search for neutrinoless double beta decay ( $0\nu \beta \beta $ ) using 0.93 kg of$^{82}$ Se observed for a total of 5.25 y has been conducted and no evidence for a signal has been found. The resulting half-life limit of $T_{1/2}^{0\nu } > 2.5 \times 10^{23} \,\text{ y } \,(90\%\,\text{ C.L. })$ for the light neutrino exchange mechanism leads to a constraint on the effective Majorana neutrino mass of $\langle m_{\nu } \rangle < \left( 1.2{-}3.0\right) \,\text{ eV }$ , where the range reflects $0\nu \beta \beta $ nuclear matrix element values from different calculations. Furthermore, constraints on lepton number violating parameters for other $0\nu \beta \beta $ mechanisms, such as right-handed currents, majoron emission and R-parity violating supersymmetry modes have been set.< Réduire

Mots clés en anglais

double-beta decay: (0neutrino)

nucleus: transition

selenium: semileptonic decay

selenium: lifetime

lifetime: measured

neutrino: Majorana: mass

lepton number: violation

R parity: violation

Majoron: production

neutrino: exchange

supersymmetry

ground state

right-handed

Neutrino Ettore Majorana Observatory

experimental results

S029MT

S076ETA

S076H0N

S076H2N

S076MW

double-beta decay: (2neutrino)

Métadonnées

Licence d’utilisation du document

Final results on $^{82}{Se}$ double beta decay to the ground state of $^{82}{Kr}$ from the NEMO-3 experiment

Langue

Ce document a été publié dans

Résumé en anglais

Mots clés en anglais

DOI

Origine

Unités de recherche