TY - JOUR
T1 - Electromagnetic M1 transition strengths from inelastic proton scattering
T2 - The cases of Ca 48 and Pb 208
AU - Birkhan, J.
AU - Matsubara, H.
AU - Von Neumann-Cosel, P.
AU - Pietralla, N.
AU - Ponomarev, V. Yu
AU - Richter, A.
AU - Tamii, A.
AU - Wambach, J.
N1 - Publisher Copyright:
© 2016 American Physical Society.
PY - 2016/4/8
Y1 - 2016/4/8
N2 - Inelastic proton scattering at energies of a few hundred million electron volts and extreme forward angles selectively excite the isovector spin-flip M1 (IVSM1) resonance. A method based on isospin symmetry is presented to extract its electromagnetic transition strength from the (p,p′) cross sections. It is applied to Ca48, a key case for an interpretation of the quenching phenomenon of the spin-isospin response, and leads to a M1 strength consistent with an older (e,e′) experiment excluding the almost two times larger value from a recent (γ,n) experiment. Good agreement with electromagnetic probes is observed in Pb208, suggesting the possibility of extracting systematic information on the IVSM1 resonance in heavy nuclei.
AB - Inelastic proton scattering at energies of a few hundred million electron volts and extreme forward angles selectively excite the isovector spin-flip M1 (IVSM1) resonance. A method based on isospin symmetry is presented to extract its electromagnetic transition strength from the (p,p′) cross sections. It is applied to Ca48, a key case for an interpretation of the quenching phenomenon of the spin-isospin response, and leads to a M1 strength consistent with an older (e,e′) experiment excluding the almost two times larger value from a recent (γ,n) experiment. Good agreement with electromagnetic probes is observed in Pb208, suggesting the possibility of extracting systematic information on the IVSM1 resonance in heavy nuclei.
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U2 - 10.1103/PhysRevC.93.041302
DO - 10.1103/PhysRevC.93.041302
M3 - Article
AN - SCOPUS:84963607011
SN - 2469-9985
VL - 93
JO - Physical Review C
JF - Physical Review C
IS - 4
M1 - 041302
ER -