Extraction of weak transition strengths via the (3He,t) reaction at 420 MeV - IN2P3 - Institut national de physique nucléaire et de physique des particules Access content directly
Journal Articles Physical Review Letters Year : 2007

Extraction of weak transition strengths via the (3He,t) reaction at 420 MeV

R. G. T Zegers
  • Function : Author
T. Adachi
  • Function : Author
H. Akimune
  • Function : Author
Sam M. Austin
  • Function : Author
A. M. van Den Berg
  • Function : Author
B. A. Brown
  • Function : Author
Y. Fujita
  • Function : Author
M. Fujiwara
  • Function : Author
C. J. Guess
  • Function : Author
M. N. Harakeh
  • Function : Author
H. Hashimoto
  • Function : Author
K. Hatanaka
  • Function : Author
R. Hayami
  • Function : Author
G. W. Hitt
  • Function : Author
M. E. Howard
  • Function : Author
M. Itoh
  • Function : Author
T. Kawabata
  • Function : Author
K. Kawase
  • Function : Author
M. Kinoshita
  • Function : Author
M. Matsubara
  • Function : Author
K. Nakanishi
  • Function : Author
S. Nakayama
  • Function : Author
S. Okumura
  • Function : Author
T. Ohta
  • Function : Author
Y. Sakemi
  • Function : Author
Y. Shimbara
  • Function : Author
Y. Shimizu
  • Function : Author
C. Scholl
  • Function : Author
Y. Tameshige
  • Function : Author
A. Tamii
  • Function : Author
M. Uchida
  • Function : Author
T. Yamagata
  • Function : Author
M. Yosoi
  • Function : Author

Abstract

Differential cross sections for transitions of known weak strength were measured with the (3He,t) reaction at 420 MeV on targets of 12C, 13C, 18O, 26Mg, 58Ni, 60Ni, 90Zr, 118Sn, 120Sn and 208Pb. Using this data, it is shown the proportionalities between strengths and cross sections for this probe follow simple trends as a function of mass number. These trends can be used to confidently determine Gamow-Teller strength distributions in nuclei for which the proportionality cannot be calibrated via beta-decay strengths. Although theoretical calculations in distorted-wave Born approximation overestimate the data, they allow one to understand the main experimental features and to predict deviations from the simple trends observed in some of the transitions.

Dates and versions

in2p3-00192229 , version 1 (27-11-2007)

Identifiers

Cite

R. G. T Zegers, T. Adachi, H. Akimune, Sam M. Austin, A. M. van Den Berg, et al.. Extraction of weak transition strengths via the (3He,t) reaction at 420 MeV. Physical Review Letters, 2007, 99, pp.202501. ⟨10.1103/PhysRevLett.99.202501⟩. ⟨in2p3-00192229⟩
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