TY - JOUR
T1 - Total interaction and proton-removal cross-section measurements for the proton-rich isotopes 7Be, 8B, and 9C
AU - Blank, B.
AU - Marchand, C.
AU - Pravikoff, M. S.
AU - Baumann, T.
AU - Boué, F.
AU - Geissel, H.
AU - Hellström, M.
AU - Iwasa, N.
AU - Schwab, W.
AU - Sümmerer, K.
AU - Gai, M.
N1 - Funding Information:
We acknowledgeth e technical support of K.-H. Behr, A. Briinle, and K. Burkard in the preparationp hase and during the experimentF. urthermorew, e would like to thank the SIS operationc rew for deliveringa high-qualityp rimarybeam. Many fruitful discussionsw ith EG. Hansen are gratefully acknowledgedW. e are indebted to C.A. Bertulani for providing us with the program for the EMD cross sectionsa nd to M.M. Obuti for the density distributionsT.h is work has been supportedb y the German-French collaborationp rogramof IN2P3 and GSI.
PY - 1997/10/6
Y1 - 1997/10/6
N2 - In an experiment performed at the FRS of GSI, we measured total interaction cross sections for 7Be, 8B, and 9C, one-proton-removal cross sections for 8B and 9C as well as two-proton-removal cross sections for 9C on targets ranging from carbon to lead at an energy of 285 MeV/nucleon. In addition, we performed measurements at 142 MeV/nucleon for 8B. The experimental results are compared to different calculations. Glauber-type calculations with different model density distributions show that, down to incident energies of about 50 MeV/nucleon, total interaction cross-section measurements with light targets are not sensitive to an extended proton distribution in 8B. However, at lower incident energies, a tail in the proton density distribution is needed to explain the total interaction cross sections. Total interaction cross-section measurements with high-Z targets in the present experiment show a significant increase of the cross sections due to low-lying electromagnetic strength.
AB - In an experiment performed at the FRS of GSI, we measured total interaction cross sections for 7Be, 8B, and 9C, one-proton-removal cross sections for 8B and 9C as well as two-proton-removal cross sections for 9C on targets ranging from carbon to lead at an energy of 285 MeV/nucleon. In addition, we performed measurements at 142 MeV/nucleon for 8B. The experimental results are compared to different calculations. Glauber-type calculations with different model density distributions show that, down to incident energies of about 50 MeV/nucleon, total interaction cross-section measurements with light targets are not sensitive to an extended proton distribution in 8B. However, at lower incident energies, a tail in the proton density distribution is needed to explain the total interaction cross sections. Total interaction cross-section measurements with high-Z targets in the present experiment show a significant increase of the cross sections due to low-lying electromagnetic strength.
KW - Measured total interaction σ. C, Al,Sn,Pb(B, X),(C, X),E = 142 MeV/nucleon
KW - Nuclear Reactions C, Al,Sn,Pb(Be, X),E = 142 MeV/nucleon
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U2 - 10.1016/S0375-9474(97)81837-4
DO - 10.1016/S0375-9474(97)81837-4
M3 - Article
AN - SCOPUS:0031556456
SN - 0375-9474
VL - 624
SP - 242
EP - 256
JO - Nuclear Physics A
JF - Nuclear Physics A
IS - 2
ER -