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Статья

Search for Double Beta Decay of 106Cd with an Enriched 106CdWO4 Crystal Scintillator in Coincidence with CdWO4 Scintillation Counters

P. Belli, R. Bernabei, V. Brudanin, F. Cappella, V. Caracciolo, R. Cerulli, F. Danevich, A. Incicchitti, D. Kasperovych, V. Klavdiienko, V. Kobychev, V. Merlo, O. Polischuk, V. Tretyak, M. Zarytskyy,
2020
https://doi.org/10.3390/universe6100182

Studies on double beta decay processes in 106Cd were performed by using a cadmium tungstate scintillator enriched in 106Cd at 66% (106CdWO4) with two CdWO4 scintillation counters (with natural Cd composition). No effect was observed in the data that accumulated over 26,033 h. New improved half-life limits were set on the different channels and modes of the 106Cd double beta decay at level of limT1/2∼1020−1022 yr. The limit for the two neutrino electron capture with positron emission in 106Cd to the ground state of 106Pd, T1/22νECβ+≥2.1×1021 yr, was set by the analysis of the 106CdWO4 data in coincidence with the energy release 511 keV in both CdWO4 counters. The sensitivity approaches the theoretical predictions for the decay half-life that are in the range T1/2∼1021−1022 yr. The resonant neutrinoless double-electron capture to the 2718 keV excited state of 106Pd is restricted at the level of T1/20ν2K≥2.9×1021 yr.

Цитирование

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Версии

  • 1. Version of Record от 2020-10-16

Метаданные

Об авторах
  • P. Belli
    INFN, Sezione di Roma “Tor Vergata”, I-00133 Rome, Italy;, pierluigi.belli@roma2.infn.it, (P.B.);, vincenzo.caracciolo@roma2.infn.it, (V.C.);, riccardo.cerulli@roma2.infn.it, (R.C.);, vittorio.merlo@roma2.infn.it, (V.M.), Dipartimento di Fisica, Università di Roma “Tor Vergata”, I-00133 Rome, Italy
  • R. Bernabei
    INFN, Sezione di Roma “Tor Vergata”, I-00133 Rome, Italy;, pierluigi.belli@roma2.infn.it, (P.B.);, vincenzo.caracciolo@roma2.infn.it, (V.C.);, riccardo.cerulli@roma2.infn.it, (R.C.);, vittorio.merlo@roma2.infn.it, (V.M.), Dipartimento di Fisica, Università di Roma “Tor Vergata”, I-00133 Rome, Italy
  • V. Brudanin
    Joint Institute for Nuclear Research, 141980 Dubna, Russia;, brudanin@jinr.ru
  • F. Cappella
    INFN, Sezione Roma “La Sapienza”, I-00185 Rome, Italy;, fabio.cappella@roma1.infn.it, (F.C.);, antonella.incicchitti@roma1.infn.it, (A.I.), Dipartimento di Fisica, Università di Roma “La Sapienza”, I-00185 Rome, Italy
  • V. Caracciolo
    INFN, Sezione di Roma “Tor Vergata”, I-00133 Rome, Italy;, pierluigi.belli@roma2.infn.it, (P.B.);, vincenzo.caracciolo@roma2.infn.it, (V.C.);, riccardo.cerulli@roma2.infn.it, (R.C.);, vittorio.merlo@roma2.infn.it, (V.M.), Dipartimento di Fisica, Università di Roma “Tor Vergata”, I-00133 Rome, Italy, INFN, Laboratori Nazionali del Gran Sasso, 67100 Assergi (AQ), Italy
  • R. Cerulli
    INFN, Sezione di Roma “Tor Vergata”, I-00133 Rome, Italy;, pierluigi.belli@roma2.infn.it, (P.B.);, vincenzo.caracciolo@roma2.infn.it, (V.C.);, riccardo.cerulli@roma2.infn.it, (R.C.);, vittorio.merlo@roma2.infn.it, (V.M.), Dipartimento di Fisica, Università di Roma “Tor Vergata”, I-00133 Rome, Italy
  • F. Danevich
    Institute for Nuclear Research of NASU, 03028 Kyiv, Ukraine;, danevich@kinr.kiev.ua, (F.A.D.);, casper.phys@gmail.com, (D.V.K.);, klavdiienko.volodymyr@gmail.com, (V.R.K.);, kobychev@kinr.kiev.ua, (V.V.K.);, polischuk@kinr.kiev.ua, (O.G.P.);, tretyak@kinr.kiev.ua, (V.I.T.);, zaritsky96@gmail.com, (M.M.Z.)
  • A. Incicchitti
    INFN, Sezione Roma “La Sapienza”, I-00185 Rome, Italy;, fabio.cappella@roma1.infn.it, (F.C.);, antonella.incicchitti@roma1.infn.it, (A.I.), Dipartimento di Fisica, Università di Roma “La Sapienza”, I-00185 Rome, Italy
  • D. Kasperovych
    Institute for Nuclear Research of NASU, 03028 Kyiv, Ukraine;, danevich@kinr.kiev.ua, (F.A.D.);, casper.phys@gmail.com, (D.V.K.);, klavdiienko.volodymyr@gmail.com, (V.R.K.);, kobychev@kinr.kiev.ua, (V.V.K.);, polischuk@kinr.kiev.ua, (O.G.P.);, tretyak@kinr.kiev.ua, (V.I.T.);, zaritsky96@gmail.com, (M.M.Z.)
  • V. Klavdiienko
    Institute for Nuclear Research of NASU, 03028 Kyiv, Ukraine;, danevich@kinr.kiev.ua, (F.A.D.);, casper.phys@gmail.com, (D.V.K.);, klavdiienko.volodymyr@gmail.com, (V.R.K.);, kobychev@kinr.kiev.ua, (V.V.K.);, polischuk@kinr.kiev.ua, (O.G.P.);, tretyak@kinr.kiev.ua, (V.I.T.);, zaritsky96@gmail.com, (M.M.Z.)
  • V. Kobychev
    Institute for Nuclear Research of NASU, 03028 Kyiv, Ukraine;, danevich@kinr.kiev.ua, (F.A.D.);, casper.phys@gmail.com, (D.V.K.);, klavdiienko.volodymyr@gmail.com, (V.R.K.);, kobychev@kinr.kiev.ua, (V.V.K.);, polischuk@kinr.kiev.ua, (O.G.P.);, tretyak@kinr.kiev.ua, (V.I.T.);, zaritsky96@gmail.com, (M.M.Z.)
  • V. Merlo
    INFN, Sezione di Roma “Tor Vergata”, I-00133 Rome, Italy;, pierluigi.belli@roma2.infn.it, (P.B.);, vincenzo.caracciolo@roma2.infn.it, (V.C.);, riccardo.cerulli@roma2.infn.it, (R.C.);, vittorio.merlo@roma2.infn.it, (V.M.), Dipartimento di Fisica, Università di Roma “Tor Vergata”, I-00133 Rome, Italy
  • O. Polischuk
    Institute for Nuclear Research of NASU, 03028 Kyiv, Ukraine;, danevich@kinr.kiev.ua, (F.A.D.);, casper.phys@gmail.com, (D.V.K.);, klavdiienko.volodymyr@gmail.com, (V.R.K.);, kobychev@kinr.kiev.ua, (V.V.K.);, polischuk@kinr.kiev.ua, (O.G.P.);, tretyak@kinr.kiev.ua, (V.I.T.);, zaritsky96@gmail.com, (M.M.Z.)
  • V. Tretyak
    Institute for Nuclear Research of NASU, 03028 Kyiv, Ukraine;, danevich@kinr.kiev.ua, (F.A.D.);, casper.phys@gmail.com, (D.V.K.);, klavdiienko.volodymyr@gmail.com, (V.R.K.);, kobychev@kinr.kiev.ua, (V.V.K.);, polischuk@kinr.kiev.ua, (O.G.P.);, tretyak@kinr.kiev.ua, (V.I.T.);, zaritsky96@gmail.com, (M.M.Z.)
  • M. Zarytskyy
    Institute for Nuclear Research of NASU, 03028 Kyiv, Ukraine;, danevich@kinr.kiev.ua, (F.A.D.);, casper.phys@gmail.com, (D.V.K.);, klavdiienko.volodymyr@gmail.com, (V.R.K.);, kobychev@kinr.kiev.ua, (V.V.K.);, polischuk@kinr.kiev.ua, (O.G.P.);, tretyak@kinr.kiev.ua, (V.I.T.);, zaritsky96@gmail.com, (M.M.Z.)
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