TY - JOUR
T1 - Measurement of γ rays from giant resonances excited by the C 12 (p,p′) reaction at 392 MeV and 0
AU - Reen, M. S.
AU - Ou, I.
AU - Sudo, T.
AU - Fukuda, D.
AU - Mori, T.
AU - Ali, A.
AU - Koshio, Y.
AU - Sakuda, Makoto
AU - Tamii, A.
AU - Aoi, N.
AU - Yosoi, M.
AU - Ideguchi, E.
AU - Suzuki, T.
AU - Yamamoto, T.
AU - Iwamoto, C.
AU - Kawabata, T.
AU - Adachi, S.
AU - Tsumura, M.
AU - Murata, M.
AU - Furuno, T.
AU - Akimune, H.
AU - Yano, T.
AU - Suzuki, T.
AU - Dhir, Rohit
N1 - Funding Information:
We gratefully acknowledge the outstanding efforts of the RCNP cyclotron staff for providing a clean and stable beam for our experiment. We would like to thank Prof. H. Toki, the former Director of RCNP, for encouraging us at the early stage of this experiment. We also thank Prof. M. N. Harakeh, Prof. Y. Suda, Prof. H. Chiba, and Prof. H. Sagawa for valuable discussions. This work was supported by JSPS Grant-in-Aid for Scientific Research on Innovative Areas (Research in a proposed research area) Grant No. 26104006.
Publisher Copyright:
©2019 American Physical Society.
PY - 2019/8/16
Y1 - 2019/8/16
N2 - We measured both the differential cross section (σp,p′=d2σ/dωdEx) and the γ-ray emission probability [Rγ(Ex)=σp,p′γ/σp,p′] from the giant resonances excited by C12(p,p′) reaction at 392 MeV and 0, using a magnetic spectrometer and an array of NaI(Tl) counters. The absolute value of Rγ(Ex) was calibrated by using the well-known γ-ray emission probability from C∗12(15.11 MeV, 1+,T=1) and O∗16(6.9 MeV, 2+,T=0) states within 5% uncertainty. We found that Rγ(Ex) starts from zero at Ex=16 MeV, increases to a maximum of 53.3±0.4±3.9% at Ex=27 MeV, and then decreases. We also compared the measured values of Rγ(Ex) with statistical model calculation based on the Hauser-Feshbach formalism in the energy region Ex=16-32 MeV and discussed the features of γ-ray emission probability quantitatively.
AB - We measured both the differential cross section (σp,p′=d2σ/dωdEx) and the γ-ray emission probability [Rγ(Ex)=σp,p′γ/σp,p′] from the giant resonances excited by C12(p,p′) reaction at 392 MeV and 0, using a magnetic spectrometer and an array of NaI(Tl) counters. The absolute value of Rγ(Ex) was calibrated by using the well-known γ-ray emission probability from C∗12(15.11 MeV, 1+,T=1) and O∗16(6.9 MeV, 2+,T=0) states within 5% uncertainty. We found that Rγ(Ex) starts from zero at Ex=16 MeV, increases to a maximum of 53.3±0.4±3.9% at Ex=27 MeV, and then decreases. We also compared the measured values of Rγ(Ex) with statistical model calculation based on the Hauser-Feshbach formalism in the energy region Ex=16-32 MeV and discussed the features of γ-ray emission probability quantitatively.
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U2 - 10.1103/PhysRevC.100.024615
DO - 10.1103/PhysRevC.100.024615
M3 - Article
AN - SCOPUS:85070677426
SN - 2469-9985
VL - 100
JO - Physical Review C
JF - Physical Review C
IS - 2
ER -