Observation of Giant Particle-Hole Resonances in<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:mmultiscripts><mml:mrow><mml:mi mathvariant="normal">Zr</mml:mi></mml:mrow><mml:mprescripts/><mml:mrow/><mml:mrow><mml:mn>90</mml:mn></mml:mrow><mml:mrow/><mml:mrow/></mml:mmultiscripts></mml:mrow><mml:mo>(</mml:mo><mml:mi>p</mml:mi><mml:mo>,</mml:mo><mml:mi> </mml:mi><mml:mi>n</mml:mi><mml:mo>)</mml:mo><mml:mrow><mml:mmultiscripts><mml:mrow><mml:mi mathvariant="normal">Nb</mml:mi></mml:mrow><mml:mprescripts/><mml:mrow/><mml:mrow><mml:mn>90</mml:mn></mml:mrow><mml:mrow/><mml:mrow/></mml:mmultiscripts></mml:mrow></mml:math>
D.E. BainumOhio University, Athens, Ohio 45701J. RapaportOhio University, Athens, Ohio 45701C. D. GoodmanOhio University, Athens, Ohio 45701D. J. HorenOhio University, Athens, Ohio 45701C. C. FosterOhio University, Athens, Ohio 45701M. B. GreenfieldOhio University, Athens, Ohio 45701C.A. GouldingOhio University, Athens, Ohio 45701
1980lv
ABI
Annotatsiya
Neutron spectra from $^{90}\mathrm{Zr}(p, n)^{90}\mathrm{Nb}$ at ${E}_{p}=120$ MeV are measured in the angular range 0\ifmmode^\circ\else\textdegree\fi{}-25\ifmmode^\circ\else\textdegree\fi{}. Three giant resonances are seen and are interpreted as the $T=4$ and $T=5$ components of the Gamow-Teller strength and an $E1$ resonance. Gamow-Teller matrix elements are extracted, and a large part of the expected strength is found.
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