TY - JOUR
T1 - The Tz = ±1 → 0 and ±2 → ±1 mirror gamow teller transitions in pf-shell nuclei
AU - Fujita, Y.
AU - Rubio, B.
AU - Molina, F.
AU - Adachi, T.
AU - Fujita, H.
AU - Blank, B.
AU - Ganioǧlu, E.
AU - Gelletly, W.
AU - Orrigo, S. E.A.
N1 - Funding Information:
The high-resolution (3He, t) experiments were performed at RCNP, Osaka, and the ?-decay studies of Tz = -1 nuclei at GSI as a part of RISING campaign. The authors are grateful to the participants in these experiments. This work was supported by MEXT, Japan under Grants Nos. 18540270, 22540310 and 15K05104; the Japan-Spain collaboration program by JSPS and CSIC; the Spanish MICINN under Grants Nos. EPA2008-06419-C02-01 and EPA2011-24553; CPAN Consolider-Ingenio 2010 Program CSD2007-00042.
PY - 2016/3
Y1 - 2016/3
N2 - Gamow-Teller (GT) transitions are the most common weak-interaction processes in the Universe. They play important roles in various processes of nucleosynthesis, for example, in the rapid proton-capture process (rp-process). In the pf-shell region, the rp-process runs through neutrondeficient nuclei with Tz = -2, -1, and 0 mainly by means of GT and Fermi transitions, where Tz is the z component of isospin T defined by Tz = (N - Z)/2. Under the assumption of isospin symmetry, mirror nuclei with reversed Z and N numbers, and thus with opposite signs of Tz, have the same structure. Therefore, symmetry is also expected for the GT transitions starting from and ending up in mirror nuclei. We have been studying the Tz = -2 → -1 and -1 → 0 GT transitions in β decays, while those from stable Tz = +2 and +1 nuclei by means of hadronic (3He,t) charge-exchange (CE) reactions. The results from these studies are compared in order to examine the mirror-symmetry structure in nuclei. In addition, these results are combined for the better understanding of GT transitions in the pf-shell region.
AB - Gamow-Teller (GT) transitions are the most common weak-interaction processes in the Universe. They play important roles in various processes of nucleosynthesis, for example, in the rapid proton-capture process (rp-process). In the pf-shell region, the rp-process runs through neutrondeficient nuclei with Tz = -2, -1, and 0 mainly by means of GT and Fermi transitions, where Tz is the z component of isospin T defined by Tz = (N - Z)/2. Under the assumption of isospin symmetry, mirror nuclei with reversed Z and N numbers, and thus with opposite signs of Tz, have the same structure. Therefore, symmetry is also expected for the GT transitions starting from and ending up in mirror nuclei. We have been studying the Tz = -2 → -1 and -1 → 0 GT transitions in β decays, while those from stable Tz = +2 and +1 nuclei by means of hadronic (3He,t) charge-exchange (CE) reactions. The results from these studies are compared in order to examine the mirror-symmetry structure in nuclei. In addition, these results are combined for the better understanding of GT transitions in the pf-shell region.
UR - http://www.scopus.com/inward/record.url?scp=84962839088&partnerID=8YFLogxK
U2 - 10.5506/APhysPolB.47.867
DO - 10.5506/APhysPolB.47.867
M3 - Article
AN - SCOPUS:84962839088
SN - 0587-4254
VL - 47
SP - 867
EP - 881
JO - Acta Physica Polonica B
JF - Acta Physica Polonica B
IS - 3
ER -