Extraction of Weak Transition Strengths via the (He<mml:mprescripts/><mml:none/>3,t) Reaction at 420 MeV

2007/07/31 by R. G. T Zegers, R. G. T. Zegers, T. Adachi +39 · 2 citations
Physics and Astronomy · #Astronomical and nuclear sciences #Nuclear physics research studies #Quantum Chromodynamics and Particle Interactions #nucl-ex

paper · pdf · doi:10.1103/physrevlett.99.202501

published as Phys. Rev. Lett. 99, 202501 (2007) · 4 pages, 2 figures

openalex publication_date 2007/11/15 · arxiv created 2008/03/27 · arxiv updated 2009/12/01 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/01

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 these data, it is shown that 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 \ensuremathβ-decay strengths. Although theoretical calculations in the 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.

Citations

• The (t,He<mml:mprescripts/><mml:none/>3) and (He<mml:mprescripts/><mml:none/>3,t) reactions as probes of Gamow-Teller strength

Cited by

• Spectroscopy ofAl<mml:mprescripts/><mml:none/>24and extraction of Gamow-Teller strengths with theMg<mml:mprescripts/><mml:none/>24(He<mml:mprescripts/><mml:none/>3,t) reaction at 420 MeV
• TheNd<mml:mprescripts/><mml:none/>150(He<mml:mprescripts/><mml:none/>3,t) andSm<mml:mprescripts/><mml:none/>150(t,He<mml:mprescripts/><mml:none/>3) reactions with applications toββdecay ofNd<mml:mprescripts/><mml:none/>150

Related

• Gamow-Teller transitions toCu<mml:mprescripts/><mml:none/>64measured with theZn<mml:mprescripts/><mml:none/>64(t,He<mml:mprescripts/><mml:none/>3) reaction
• Gamow-Teller strength distributions of 18O and well-deformed nuclei 24,26Mg by deformed QRPA
• Gamow-Teller Strength distributions in ⁷⁶\textrmGe, ^76,82\textrmSe, and ^90,92\textrmZr by the Deformed Proton-neutron QRPA
• The Landau-Migdal parameter and quenching factor from the analysis of the Gamow-Teller strength distributions in medium-heavy-mass doubly-closed-shell parent nuclei
• A first extraction of the weak magnetism form factor and Fierz interference term from the ¹¹⁴In → ¹¹⁴Sn Gamow-Teller transition