DOUBLE BETA DECAY OF Nd-150 TO THE FIRST EXCITED 0(+) LEVEL OF Sm-150: PRELIMINARY RESULTS

被引：9

作者：

Barabash, A. S. ^{[1
]}

Belli, P. ^{[2
,3
]}

Bernabei, R. ^{[2
,3
]}

Boiko, R. S. ^{[4
,5
]}

Cappella, F. ^{[6
]}

Caracciolo, V ^{[7
]}

Cerulli, R. ^{[2
,3
]}

Danevich, F. A. ^{[4
]}

Di Marco, A. ^{[2
,3
]}

Incicchitti, A. ^{[6
,8
]}

Kasperovych, D., V ^{[4
]}

Kobychev, R., V ^{[4
]}

Kobychev, V. V. ^{[4
]}

Konovalov, S., I ^{[1
]}

Laubenstein, M. ^{[7
]}

Poda, D., V ^{[4
,9
]}

Polischuk, O. G. ^{[4
]}

Tretyak, V., I ^{[4
]}

Umatov, V., I ^{[1
]}

机构：

[1] Inst Theoret & Expt Phys, Kurchatov Inst, Natl Res Ctr, Moscow, Russia

[2] Ist Nazl Fis Nucl, Sez Roma Tor Vergata, Rome, Italy

[3] Univ Roma Tor Vergata, Dipartimento Fis, Rome, Italy

[4] Natl Acad Sci Ukraine, Inst Nucl Res, Kiev, Ukraine

[5] Natl Univ Life & Environm Sci Ukraine, Kiev, Ukraine

[6] Ist Nazl Fis Nucl, Sez Roma, Rome, Italy

[7] Ist Nazl Fis Nucl, Lab Nazl Gran Sasso, Assergi, AQ, Italy

[8] Univ Roma La Sapienza, Dipartimento Fis, Rome, Italy

[9] Univ Paris Saclay, Univ Paris Sud, IN2P3, CNRS,CSNSM, Orsay, France

来源：

NUCLEAR PHYSICS AND ATOMIC ENERGY | 2018年 / 19卷 / 02期

关键词：

double beta decay; Nd-150; low counting experiment;

D O I：

10.15407/jnpae2018.02.095

中图分类号：

O57 [原子核物理学、高能物理学];

学科分类号：

070202 ;

摘要：

The double beta decay of Nd-150 to the first excited 0(+) level of Sm-150 (E-exc = 740.5 keV) has been investigated with the help of the ultra-low-background setup consisting of four HP Ge (high-purity germanium) detectors (similar or equal to 225 cm(3) volume each one) at the Gran Sasso underground laboratory of INFN (Italy). A highly purified 2.381-kg sample of neodymium oxide (Nd2O3) was used as a source of gamma quanta expected in the decays. Gamma quanta with energies 334.0 keV and 406.5 keV emitted after deexcitation of the 0(1)(+) 740.5 keV level of Sm-150 are observed in the coincidence spectra accumulated over 16375 h. The half-life relatively to the two neutrino double beta decay Nd-150 -> Sm-150(0(1)(+)) is measured as T-1/2 = [4.7(-1.9)(+4.1)(stat) +/- 0.5(syst)].10(19) y, in agreement with results of previous experiments.

引用

页码：95 / 102

页数：8

共 50 条

[1] Double beta decay of 150Nd to the first 0+ excited level of 150Sm
Polischuk, O. G.
Barabash, A. S.
Belli, P.
Bernabei, R.
Boiko, R. S.
Cappella, F.
Caracciolo, V
Cerulli, R.
Danevich, F. A.
Di Marco, A.
Incicchitti, A.
Kasperovych, D., V
Kobychev, V. V.
Konovalov, S., I
Laubenstein, M.
Poda, D., V
Tretyak, V., I
Umatov, V., I
PHYSICA SCRIPTA, 2021, 96 (08)
[2] Search for inclusive double beta decay of Nd-150 to excited states of Sm-150 at Laboratori Nazionali del Gran Sasso
Arpesella, C
Bellotti, E
Fiorini, E
Miramonti, L
Sverzellati, PP
NUCLEAR PHYSICS B, 1996, : 247 - 250
[3] Preliminary results from a study of the double beta decay of Nd-150
Isaac, MCP
Chan, YD
Hurley, D
Lesko, KT
McDonald, RJ
Moorhead, ME
Norman, EB
Smith, AR
Stokstad, RG
NUCLEAR PHYSICS B, 1996, : 244 - 246
[4] DOUBLE BETA DECAY OF ND-150
SMITH, GR
JENKINS, TL
BULLETIN OF THE AMERICAN PHYSICAL SOCIETY, 1970, 15 (01): : 24 - &
[5] Double beta decay of 150Nd to the First 0+ excited state of 150Sm
A. S. Barabash
F. Hubert
Ph. Hubert
V. I. Umatov
Journal of Experimental and Theoretical Physics Letters, 2004, 79 : 10 - 12
[6] Double beta decay of 150Nd to the first 0+ excited state of 150Sm
Barabash, AS
Hubert, F
Hubert, P
Umatov, VI
JETP LETTERS, 2004, 79 (01) : 10 - 12
[7] SEARCH FOR BETA-BETA-DECAY OF ZR-96 AND ND-150 TO EXCITED-STATES OF MO-96 AND SM-150
ARPESELLA, C
BARABASH, AS
BELLOTTI, E
BROFFERIO, C
FIORINI, E
SVERZELLATI, PP
UMATOV, VI
EUROPHYSICS LETTERS, 1994, 27 (01): : 29 - 34
[8] Double-beta decay of 150Nd to the first 0+ excited state of 150Sm
Barabash, AS
Hubert, E
Hubert, P
Umatov, VI
PHYSICS OF ATOMIC NUCLEI, 2004, 67 (06) : 1216 - 1219
[9] Double-beta decay of 150Nd to the first 0+ excited state of 150Sm
A. S. Barabash
F. Hubert
Ph. Hubert
V. I. Umatov
Physics of Atomic Nuclei, 2004, 67 : 1216 - 1219
[10] Study of Double-β Decay of 150Nd to the First 0+ Excited Level of 150Sm
Kasperovych, D., V
Barabash, A. S.
Belli, P.
Bernabei, R.
Boiko, R. S.
Cappella, F.
Caracciolo, V
Cerulli, R.
Danevich, F. A.
Di Marco, A.
Incicchitti, A.
Kobychev, V. V.
Konovalov, S., I
Laubenstein, M.
Poda, D., V
Polischuk, O. G.
Tretyak, V., I
Umatov, V., I
WORKSHOP ON CALCULATION OF DOUBLE-BETA-DECAY MATRIX ELEMENTS (MEDEX '19), 2019, 2165

← 1 2 3 4 5 →