High-resolution study of Gamow-Teller transitions in the 47Ti(3He, t)47V reaction

被引：7

作者：

Ganioglu, E. ^{[1
]}

Fujita, H. ^{[2
,3
]}

Fujita, Y. ^{[2
,3
]}

Adachi, T. ^{[3
]}

Algora, A. ^{[4
,5
]}

Csatlos, M. ^{[5
]}

Deaven, J. M. ^{[6
,7
,8
]}

Estevez-Aguado, E. ^{[4
]}

Guess, C. J. ^{[6
,7
,8
]}

Gulyas, J. ^{[5
]}

Hatanaka, K. ^{[3
]}

Hirota, K. ^{[3
]}

Honma, M. ^{[9
]}

Ishikawa, D. ^{[3
]}

Krasznahorkay, A. ^{[5
]}

Matsubara, H. ^{[3
]}

Meharchand, R. ^{[6
,7
,8
]}

Molina, F. ^{[4
]}

Okamura, H. ^{[3
]}

Ong, H. J. ^{[3
]}

Otsuka, T. ^{[10
]}

Perdikakis, G. ^{[6
,7
,8
]}

Rubio, B.

Scholl, C. ^{[11
]}

Shimbara, Y. ^{[12
]}

Susoy, G. ^{[1
]}

Suzuki, T. ^{[3
]}

Tamii, A. ^{[3
]}

Thies, J. H. ^{[13
]}

Zegers, R. G. T. ^{[6
,7
,8
]}

Zenihiro, J. ^{[3
]}

机构：

[1] Istanbul Univ, Dept Phys, TR-34134 Istanbul, Turkey

[2] Osaka Univ, Dept Phys, Toyonaka, Osaka 5600043, Japan

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

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

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

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

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

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

[9] Univ Aizu, Ctr Math Sci, Aizu Wakamatsu, Fukushima 9658580, Japan

[10] Univ Tokyo, Dept Phys, Bunkyo Ku, Tokyo 1130033, Japan

[11] Univ Cologne, Inst Kernphys, D-50937 Cologne, Germany

[12] Niigata Univ, Grad Sch Sci & Technol, Nishi Ku, Niigata 9502181, Japan

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

来源：

PHYSICAL REVIEW C | 2013年 / 87卷 / 01期

关键词：

CHARGE-EXCHANGE REACTIONS; BEAM LINE; NUCLEI; SPECTROMETER; DECAY; EXCITATIONS; SCATTERING; SPIN; WEAK;

D O I：

10.1103/PhysRevC.87.014321

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：

Given the importance of Gamow-Teller (GT) transitions in nuclear structure and astrophysical nuclear processes, we have studied T-z = +3/2 -> +1/2, GT transitions starting from the Ti-47 nucleus in the (He-3, t) charge-exchange reaction at 0 degrees and at an intermediate incident energy of 140 MeV/nucleon. The experiments were carried out at the Research Center for Nuclear Physics (RCNP), Osaka, using the high-resolution facility with a high-dispersion beam line and the Grand-Raiden spectrometer. With an energy resolution of 20 keV, individual GT transitions were observed and GT strength was derived for each state populated up to an excitation energy (E-x) of 12.5 MeV. The GT strength was widely distributed from low excitation energy up to 12.5 MeV, where we had to stop the analysis because of the high level density. The distribution of the GT strengths was compared with the results of shell model calculations using the GXPF1 interaction. The calculations could reproduce the experimental GT distributions well. The GT transitions from the ground state of Ti-47 and the M1 transitions from the isobaric analog state in V-47 to the same low-lying states in V-47 are analogous. It was found that the ratios of GT transition strengths to the ground state, the 0.088-MeV state, and the 0.146-MeV state are similar to the ratios of the strengths of the analogous M1 transitions from the isobaric analog state (IAS) to these states. The measured distribution of the GT strengths was also compared with those starting from the T-z = +3/2 nucleus K-41 to the T-z = +1/2 nucleus Ca-41. DOI: 10.1103/PhysRevC.87.014321

引用

页数：12

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