Operator expansion method and nuclear ββ decay

Hirsch, Martin; Wu, X.R.; Klapdor‐Kleingrothaus, H. V.; Cheng-rui, Ching; Tso-hsiu, Ho

doi:10.1016/0370-1573(94)90174-0

Cited by 23 publications

(40 citation statements)

References 30 publications

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“…Comparing our results with those of Klapdor et al [35,36,48], one may say that the half-lives predicted by the present paper with the dipole interaction strengths given by Figs. 1-4.…”

Section: M Nljsupporting

confidence: 71%

“…(3.2), and the corresponding predictions from Refs. [35,36] [36]. Our prediction for the half-life of 134 Xe, against double β decay, is 3.75 × 10 24 yr which exceeds by a factor 15 the corresponding finding in [35,48].…”

Section: Ssdh Presentmentioning

confidence: 64%

“…1-4. However, in order to have a fair comparison of the present results and those of Klapdor et al [35][36][37], we give in the second row of Table IV the results obtained with χ and χ 1 given by Eq. (3.2) .…”

Section: M Nljmentioning

confidence: 87%

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Description of the two neutrino double β decay in deformed nuclei with projected spherical single particle basis

Râduţâ

Raduta²,

Escuderos

2005

Phys. Rev. C

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Using an angular-momentum-projected single-particle basis, a proton-neutron quasiparticle random-phase approximation approach is used to study the 2νββ properties of 10 isotopes, exhibiting various quadrupole deformations. The parent and daughter nuclei exhibit different quadrupole deformations. Since the projected basis enables a unified description of deformed and spherical nuclei, situations where the nuclei involved in the double β decay process are both spherical, both deformed, or one spherical and the other deformed can be treated through a single formalism. Dependence of single β − and β + strength distribution on atomic mass number and nuclear deformation is analyzed. For the double β decay process, the Gamow-Teller transition amplitudes and half-lives are calculated. Results are compared with experimental data as well as with predictions of other theoretical approaches. The agreement between the present results and experimental data is fairly good.

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“…Comparing our results with those of Klapdor et al [35,36,48], one may say that the half-lives predicted by the present paper with the dipole interaction strengths given by Figs. 1-4.…”

Section: M Nljsupporting

confidence: 71%

Section: Ssdh Presentmentioning

confidence: 64%

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Description of the two neutrino double β decay in deformed nuclei with projected spherical single particle basis

Râduţâ

Raduta²,

Escuderos

2005

Phys. Rev. C

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“…In comparison to the experimental M 2ν , the theoretically calculated value given by Stoica using SRPA(WS) [53] is too small. The 2ν ββ decay rate of 100 Mo calculated by Staudt et al [45] and Hirsch et al using OEM [46] are off from the experimental T 2ν 1/2 . For g A =1.0, the M 2ν calculated by Griffith et al [29] using QRPA model favors the results of INS Baksan [57] and LBL [60] due to large error bar in the experimental T 2ν 1/2 .…”

Section: In Case Ofmentioning

confidence: 76%

Two-neutrino double- β decay of 94 ⩽ A ⩽ 110 nuclei for the 0+ → 0+ transition

et al. 2005

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The two neutrino double beta decay of 94,96 Zr, 98,100 Mo, 104 Ru and 110 Pd nuclei for 0 + → 0 + transition is studied in the PHFB model in conjunction with the summation method. In the first step, the reliability of the intrinsic wave functions has been established by obtaining an overall agreement between a number of theoretically calculated spectroscopic properties and the available experimental data for 94,96 Zr, 94,96,98,100 Mo, 98,100,104 Ru, 104,110 Pd and 110 Cd isotopes. Subsequently, the PHFB wave functions of the above mentioned nuclei are employed to calculate the nuclear transition matrix elements M 2ν as well as half-lives T 2ν 1/2 . Further, we have studied the effects of deformation on the M 2ν .

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“…Only one rather weak experimental limit in the order of 10 17 yr exists for 0νββ-decay ground state transitions in 110 Pd [12]. Theoretical predictions for the 2νββ-decay ground state mode are in the range of 0.12 -29.96 × 10 20 yr [13,14,15,16,17,18,19,21] [21] for the 0 + 1 state. The second isotope 102 Pd has a Q-value of 1172 keV, a natural abundance of 1.02 % and is able to decay via EC/EC and β + /EC.…”

Section: Introductionmentioning

confidence: 96%

A first search of excited states double beta and double electron capture decays of 110Pd and 102Pd

Lehnert

Zuber

2011

Physics Letters B

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A search for double beta decays of the palladium isotopes 110 Pd and 102 Pd into excited states of their daughters was performed and first half-life limits for the 2νββ and 0νββ decays into first excited 0 + and 2 + states of 5.89 × 10 19 yr and 4.40 × 10 19 yr (95 % CL) for the 110 Pd decay were obtained. The half-life limits for the corresponding double electron capture transition of 102 Pd are 7.64 × 10 18 yr and 2.68 × 10 18 yr (95 % CL) respectively. These are the first measurements for 102 Pd.

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Operator expansion method and nuclear ββ decay

Cited by 23 publications

References 30 publications

Description of the two neutrino double β decay in deformed nuclei with projected spherical single particle basis

Description of the two neutrino double β decay in deformed nuclei with projected spherical single particle basis

Two-neutrino double- β decay of 94 ⩽ A ⩽ 110 nuclei for the 0+ → 0+ transition

A first search of excited states double beta and double electron capture decays of 110Pd and 102Pd

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