Determination of the Gamow–Teller quenching factor from charge exchange reactions on 90Zr

K Yako,K Hatanaka,H Okamura,K Suda,H Sakai,Y Kitamura,N Uchigashima,A Tamii,M Hatano,Y Maeda,Y Sakemi,J Kamiya,Y Shimizu,K Sekiguchi,T Wakasa,J Rapaport,Christopher Morris ,M B Greenfield ,Takeshi Saito ,Hiroaki Kato

doi:10.1016/j.physletb.2005.04.032

Determination of the Gamow–Teller quenching factor from charge exchange reactions on 90Zr

K Yako, K Hatanaka + Show 18 more

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https://doi.org/10.1016/j.physletb.2005.04.032

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Journal: Physics Letters B	Publication Date: Apr 22, 2005
Citations: 91	License type: cc-by

Affiliation: The University of Tokyo, Osaka University, Tohoku University, Japan Atomic Energy Agency, RIKEN, Kyushu University, Ohio University, Los Alamos National Laboratory, International Christian University

#Gamow–Teller #Double Differential Cross Sections + Show 8 more

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Abstract

Double differential cross sections between 0°–12° were measured for the 90Zr(n, p) reaction at 293 MeV over a wide excitation energy range of 0–70 MeV. A multipole decomposition technique was applied to the present data as well as the previously obtained 90Zr(p, n) data to extract the Gamow–Teller (GT) component from the continuum. The GT quenching factor Q was derived by using the obtained total GT strengths. The result is Q=0.88±0.06, not including an overall normalization uncertainty in the GT unit cross section of 16%.

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