The 150Nd(3He,t) and 150Sm(t,3He) reactions with applications to ββ decay of 150Nd

被引：61

作者：

Guess, C. J. ^{[1
,2
,3
]}

Adachi, T. ^{[4
]}

Akimune, H. ^{[5
]}

Algora, A. ^{[6
,7
]}

Austin, Sam M. ^{[1
,3
]}

Bazin, D. ^{[1
]}

Brown, B. A. ^{[1
,2
,3
]}

Caesar, C. ^{[1
,8
]}

Deaven, J. M. ^{[1
,2
,3
]}

Ejiri, H. ^{[4
,9
]}

Estevez, E. ^{[6
]}

Fang, D. ^{[10
]}

Faessler, A. ^{[10
]}

Frekers, D. ^{[11
]}

Fujita, H. ^{[4
]}

Fujita, Y. ^{[12
]}

Fujiwara, M. ^{[4
,13
]}

Grinyer, G. F. ^{[1
]}

Harakeh, M. N. ^{[14
]}

Hatanaka, K. ^{[4
]}

Herlitzius, C. ^{[1
,8
]}

Hirota, K. ^{[4
]}

Hitt, G. W. ^{[1
,2
,3
]}

Ishikawa, D. ^{[4
]}

Matsubara, H. ^{[4
]}

Meharchand, R. ^{[1
,2
,3
]}

Molina, F. ^{[6
]}

Okamura, H. ^{[4
]}

Ong, H. J. ^{[4
]}

Perdikakis, G. ^{[1
,3
]}

Rodin, V. ^{[10
]}

Rubio, B. ^{[6
]}

Shimbara, Y. ^{[15
]}

Suesoy, G. ^{[16
]}

Suzuki, T. ^{[4
]}

Tamii, A. ^{[4
]}

Thies, J. H. ^{[11
]}

Tur, C. ^{[3
]}

Verhanovitz, N. ^{[1
]}

Yosoi, M. ^{[4
]}

Yurkon, J. ^{[1
]}

Zegers, R. G. T. ^{[1
,2
,3
]}

Zenihiro, J. ^{[4
]}

机构：

[1] Michigan State Univ, Natl Superconducting Cyclotron Lab, E Lansing, MI 48824 USA

[2] Michigan State Univ, Dept Phys & Astron, E Lansing, MI 48824 USA

[3] Michigan State Univ, Joint Inst Nucl Astrophys, E Lansing, MI 48824 USA

[4] Osaka Univ, Res Ctr Nucl Phys, Osaka 5670047, Japan

[5] Konan Univ, Dept Phys, Kobe, Hyogo 6588501, Japan

[6] Univ Valencia, CSIC, Inst Fis Corpuscular, E-46071 Valencia, Spain

[7] Hungarian Acad Sci, Inst Nucl Res, H-4001 Debrecen, Hungary

[8] Johannes Gutenberg Univ Mainz, D-55099 Mainz, Germany

[9] Czech Tech Univ, CR-16635 Prague, Czech Republic

[10] Univ Tubingen, Inst Theoret Phys, D-72076 Tubingen, Germany

[11] Univ Munster, Inst Kernphys, D-48149 Munster, Germany

[12] Osaka Univ, Dept Phys, Osaka 5600043, Japan

[13] Japan Atom Energy Agcy, Quantum Beam Sci Directorate, Tokai, Ibaraki 3191195, Japan

[14] Univ Groningen, Kernfys Versneller Inst, NL-9747 AA Groningen, Netherlands

[15] Niigata Univ, Grad Sch Sci & Technol, Niigata 9502181, Japan

[16] Istanbul Univ, Fac Sci, Dept Phys, TR-34134 Istanbul, Turkey

来源：

PHYSICAL REVIEW C | 2011年 / 83卷 / 06期

关键词：

GAMOW-TELLER STRENGTH; CHARGE-EXCHANGE REACTIONS; NUCLEAR-MATRIX ELEMENTS; RESONANCES; SCATTERING; FRAGMENTATION; EXCITATIONS; NEUTRINOS; DETECTOR;

D O I：

10.1103/PhysRevC.83.064318

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 Nd-150(3He,t) reaction at 140 MeV/u and Sm-150(t,He-3) reaction at 115 MeV/u were measured, populating excited states in Pm-150. The transitions studied populate intermediate states of importance for the (neutrinoless) beta beta decay of Nd-150 to Sm-150. Monopole and dipole contributions to the measured excitation-energy spectra were extracted by using multipole decomposition analyses. The experimental results were compared with theoretical calculations obtained within the framework of the quasiparticle random-phase approximation, which is one of the main methods employed for estimating the half-life of the neutrinoless beta beta decay (0 nu beta beta) of Nd-150. The present results thus provide useful information on the neutrino responses for evaluating the 0 nu beta beta and 2 nu beta beta matrix elements. The 2 nu beta beta matrix element calculated from the Gamow-Teller transitions through the lowest 1(+) state in the intermediate nucleus is maximally about half that deduced from the half-life measured in 2 nu beta beta direct counting experiments, and at least several transitions through 1+ intermediate states in Pm-150 are required to explain the 2 nu beta beta half-life. Because Gamow-Teller transitions in the Sm-150(t,3He) experiment are strongly Pauli blocked, the extraction of Gamow-Teller strengths was complicated by the excitation of the 2 (h) over bar omega, Lambda L = 0, Delta S = 1 isovector spin-flip giant monopole resonance (IVSGMR). However, the near absence of Gamow-Teller transition strength made it possible to cleanly identify this resonance, and the strength observed is consistent with the full exhaustion of the non-energy-weighted sum rule for the IVSGMR.

引用

页数：17

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