Tz=-1 → 0 β-Decays of 54Ni, 50Fe, 46Cr, and 42Ti and Comparison With Mirror (3He,t) Measurements

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Tz=-1 → 0 β-Decays of 54Ni, 50Fe, 46Cr, and 42Ti and Comparison With Mirror (3He,t) Measurements. / Molina, F.; Rubio, B.; Fujita, Y.; Gelletly, W.; Agramunt, J.; Algora, A.; Benlliure, J.; Boutachkov, P.; Cáceres, L.; Cakirli, R. B.; Casarejos, E.; Domingo-Pardo, C.; Doornenbal, P.; Gadea, A.; Ganioğlu, E.; Gascón, M.; Geissel, H.; Gerl, J.; Górska, M.; Grȩbosz, J.; Hoischen, Robert; Kumar, R.; Kurz, N.; Kojouharov, I.; Susam, L. Amon; Matsubara, H.; Morales, A. I.; Oktem, Y.; Pauwels, D.; Pérez-Loureiro, D.; Pietri, S.; Podolyák, Zs.; Prokopowicz, W.; Rudolph, Dirk; Schaffner, H.; Steer, S. J.; Tain, J. L.; Tamii, A.; Tashenov, S.; Valiente-Dobón, J. J.; Verma, S.; Wollersheim, H-J.

In: Physical Review C (Nuclear Physics), Vol. 91, No. 1, 014301, 2015.

Research output: Contribution to journalArticle

Harvard

Molina, F, Rubio, B, Fujita, Y, Gelletly, W, Agramunt, J, Algora, A, Benlliure, J, Boutachkov, P, Cáceres, L, Cakirli, RB, Casarejos, E, Domingo-Pardo, C, Doornenbal, P, Gadea, A, Ganioğlu, E, Gascón, M, Geissel, H, Gerl, J, Górska, M, Grȩbosz, J, Hoischen, R, Kumar, R, Kurz, N, Kojouharov, I, Susam, LA, Matsubara, H, Morales, AI, Oktem, Y, Pauwels, D, Pérez-Loureiro, D, Pietri, S, Podolyák, Z, Prokopowicz, W, Rudolph, D, Schaffner, H, Steer, SJ, Tain, JL, Tamii, A, Tashenov, S, Valiente-Dobón, JJ, Verma, S & Wollersheim, H-J 2015, 'Tz=-1 → 0 β-Decays of 54Ni, 50Fe, 46Cr, and 42Ti and Comparison With Mirror (3He,t) Measurements', Physical Review C (Nuclear Physics), vol. 91, no. 1, 014301. https://doi.org/10.1103/PhysRevC.91.014301

APA

Molina, F., Rubio, B., Fujita, Y., Gelletly, W., Agramunt, J., Algora, A., ... Wollersheim, H-J. (2015). Tz=-1 → 0 β-Decays of 54Ni, 50Fe, 46Cr, and 42Ti and Comparison With Mirror (3He,t) Measurements. Physical Review C (Nuclear Physics), 91(1), [014301]. https://doi.org/10.1103/PhysRevC.91.014301

CBE

Molina F, Rubio B, Fujita Y, Gelletly W, Agramunt J, Algora A, Benlliure J, Boutachkov P, Cáceres L, Cakirli RB, Casarejos E, Domingo-Pardo C, Doornenbal P, Gadea A, Ganioğlu E, Gascón M, Geissel H, Gerl J, Górska M, Grȩbosz J, Hoischen R, Kumar R, Kurz N, Kojouharov I, Susam LA, Matsubara H, Morales AI, Oktem Y, Pauwels D, Pérez-Loureiro D, Pietri S, Podolyák Z, Prokopowicz W, Rudolph D, Schaffner H, Steer SJ, Tain JL, Tamii A, Tashenov S, Valiente-Dobón JJ, Verma S, Wollersheim H-J. 2015. Tz=-1 → 0 β-Decays of 54Ni, 50Fe, 46Cr, and 42Ti and Comparison With Mirror (3He,t) Measurements. Physical Review C (Nuclear Physics). 91(1). https://doi.org/10.1103/PhysRevC.91.014301

MLA

Vancouver

Author

Molina, F. ; Rubio, B. ; Fujita, Y. ; Gelletly, W. ; Agramunt, J. ; Algora, A. ; Benlliure, J. ; Boutachkov, P. ; Cáceres, L. ; Cakirli, R. B. ; Casarejos, E. ; Domingo-Pardo, C. ; Doornenbal, P. ; Gadea, A. ; Ganioğlu, E. ; Gascón, M. ; Geissel, H. ; Gerl, J. ; Górska, M. ; Grȩbosz, J. ; Hoischen, Robert ; Kumar, R. ; Kurz, N. ; Kojouharov, I. ; Susam, L. Amon ; Matsubara, H. ; Morales, A. I. ; Oktem, Y. ; Pauwels, D. ; Pérez-Loureiro, D. ; Pietri, S. ; Podolyák, Zs. ; Prokopowicz, W. ; Rudolph, Dirk ; Schaffner, H. ; Steer, S. J. ; Tain, J. L. ; Tamii, A. ; Tashenov, S. ; Valiente-Dobón, J. J. ; Verma, S. ; Wollersheim, H-J. / Tz=-1 → 0 β-Decays of 54Ni, 50Fe, 46Cr, and 42Ti and Comparison With Mirror (3He,t) Measurements. In: Physical Review C (Nuclear Physics). 2015 ; Vol. 91, No. 1.

RIS

TY - JOUR

T1 - Tz=-1 → 0 β-Decays of 54Ni, 50Fe, 46Cr, and 42Ti and Comparison With Mirror (3He,t) Measurements

AU - Molina, F.

AU - Rubio, B.

AU - Fujita, Y.

AU - Gelletly, W.

AU - Agramunt, J.

AU - Algora, A.

AU - Benlliure, J.

AU - Boutachkov, P.

AU - Cáceres, L.

AU - Cakirli, R. B.

AU - Casarejos, E.

AU - Domingo-Pardo, C.

AU - Doornenbal, P.

AU - Gadea, A.

AU - Ganioğlu, E.

AU - Gascón, M.

AU - Geissel, H.

AU - Gerl, J.

AU - Górska, M.

AU - Grȩbosz, J.

AU - Hoischen, Robert

AU - Kumar, R.

AU - Kurz, N.

AU - Kojouharov, I.

AU - Susam, L. Amon

AU - Matsubara, H.

AU - Morales, A. I.

AU - Oktem, Y.

AU - Pauwels, D.

AU - Pérez-Loureiro, D.

AU - Pietri, S.

AU - Podolyák, Zs.

AU - Prokopowicz, W.

AU - Rudolph, Dirk

AU - Schaffner, H.

AU - Steer, S. J.

AU - Tain, J. L.

AU - Tamii, A.

AU - Tashenov, S.

AU - Valiente-Dobón, J. J.

AU - Verma, S.

AU - Wollersheim, H-J.

PY - 2015

Y1 - 2015

N2 - We have studied the β decay of the Tz=−1, f7/2 shell nuclei Ni54, Fe50, Cr46, and Ti42 produced in fragmentation reactions. The proton separation energies in the daughter Tz=0 nuclei are relatively large (≈4–5 MeV) so studies of the γ rays are essential. The experiments were performed at GSI as part of the Stopped-beam campaign with the RISING setup consisting of 15 Euroball Cluster Ge detectors. From the newly obtained high precision β-decay half-lives, excitation energies, and β branching ratios, we were able to extract Fermi and Gamow-Teller transition strengths in these β decays. With these improved results it was possible to compare in detail the Gamow-Teller (GT) transition strengths observed in beta decay including a sensitivity limit with the strengths of the Tz=+1 to Tz=0 transitions derived from high resolution (3He,t) reactions on the mirror target nuclei at RCNP, Osaka. The accumulated B(GT) strength obtained from both experiments looks very similar although the charge exchange reaction provides information on a broader energy range. Using the “merged analysis” one can obtain a full picture of the B(GT) over the full Qβ range. Looking at the individual transitions some differences are observed, especially for the weak transitions. Their possible origins are discussed.

AB - We have studied the β decay of the Tz=−1, f7/2 shell nuclei Ni54, Fe50, Cr46, and Ti42 produced in fragmentation reactions. The proton separation energies in the daughter Tz=0 nuclei are relatively large (≈4–5 MeV) so studies of the γ rays are essential. The experiments were performed at GSI as part of the Stopped-beam campaign with the RISING setup consisting of 15 Euroball Cluster Ge detectors. From the newly obtained high precision β-decay half-lives, excitation energies, and β branching ratios, we were able to extract Fermi and Gamow-Teller transition strengths in these β decays. With these improved results it was possible to compare in detail the Gamow-Teller (GT) transition strengths observed in beta decay including a sensitivity limit with the strengths of the Tz=+1 to Tz=0 transitions derived from high resolution (3He,t) reactions on the mirror target nuclei at RCNP, Osaka. The accumulated B(GT) strength obtained from both experiments looks very similar although the charge exchange reaction provides information on a broader energy range. Using the “merged analysis” one can obtain a full picture of the B(GT) over the full Qβ range. Looking at the individual transitions some differences are observed, especially for the weak transitions. Their possible origins are discussed.

KW - beta decay

KW - gamma-ray spectroscopy

KW - RISING spectrometer

KW - isospin symmetry

U2 - 10.1103/PhysRevC.91.014301

DO - 10.1103/PhysRevC.91.014301

M3 - Article

VL - 91

JO - Physical Review C: covering nuclear physics

T2 - Physical Review C: covering nuclear physics

JF - Physical Review C: covering nuclear physics

SN - 2469-9985

IS - 1

M1 - 014301

ER -