Reaction and proton-removal cross sections of Li6, Be7, B10, C9,10,11, N12, O13,15, and Ne17 on Si at 15 to 53 MeV/nucleon

Excitation functions for total reaction cross sections, ${\ensuremath{\sigma}}_{R}$, were measured for the light, mainly proton-rich nuclei $^{6}\mathrm{Li}$, $^{7}\mathrm{Be}$, $^{10}\mathrm{B}$, $^{9,10,11}\mathrm{C}$, $^{12}\mathrm{N}$, $^{13,15}\mathrm{O}$, and $^{17}\mathrm{Ne}$ incident on a Si telescope at energies between 15 and 53 MeV/nucleon. The telescope served as target, energy degrader and detector. Proton-removal cross sections, ${\ensuremath{\sigma}}_{2p}$ for $^{17}\mathrm{Ne}$ and ${\ensuremath{\sigma}}_{p}$ for most of the other projectiles, were also measured. The strong absorption model reproduces the $A$-dependence of ${\ensuremath{\sigma}}_{R}$, but not the detailed structure. Glauber multiple scattering theory and the Jeukenne, Lejeune, and Mahaux (JLM) folding model provided improved descriptions of the measured ${\ensuremath{\sigma}}_{R}$ values. Rms radii, extracted from the measured ${\ensuremath{\sigma}}_{R}$ using the optical limit of Glauber theory, are in good agreement with those obtained from high energy data. One-proton removal reactions are described using an extended Glauber model, incorporating second order noneikonal corrections, realistic single particle densities, and spectroscopic factors from shell model calculations.

[1]  I. Angeli,et al.  A consistent set of nuclear rms charge radii: properties of the radius surface R(N,Z) ☆ , 2004 .

[2]  R. Ronningen,et al.  Proton removal fromB8,C9, andC12on Si at20–70MeV∕nucleon , 2004 .

[3]  C. Gagliardi,et al.  Refractive effects in the scattering of loosely bound nuclei , 2004, nucl-ex/0402011.

[4]  E. al.,et al.  One-neutron removal reactions on light neutron-rich nuclei , 2003, nucl-ex/0307019.

[5]  T. Suzuki,et al.  Possibility of a two-proton halo in 17Ne , 2003 .

[6]  K. Rusek,et al.  Dynamic polarization potential for 6He + p due to breakup , 2003 .

[7]  T. Kato,et al.  Study of halo structure of 16 C from reaction cross section measurement , 2002 .

[8]  C. Mazzocchi,et al.  First evidence for the two-proton decay of 45Fe , 2002 .

[9]  B. A. Brown,et al.  Absolute spectroscopic factors from nuclear knockout reactions , 2002 .

[10]  J. A. Stander,et al.  Reaction cross sections of intermediate energy 3He-particles on targets from 9Be to 208Pb , 2001 .

[11]  I. Tanihata,et al.  Nuclear size and related topics , 2001 .

[12]  D. Roberts,et al.  Total reaction and neutron-removal cross sections of (30-60)A MeV Be isotopes on Si and Pb , 2000 .

[13]  R. E. Warner,et al.  New results for reaction cross sections of intermediate energy α-particles on targets from 9Be to 208Pb , 2000 .

[14]  C. Gagliardi,et al.  Optical model potentials involving loosely bound p-shell nuclei around 10 MeV/nucleon , 1999, nucl-ex/9908022.

[15]  T. Suzuki,et al.  Density distribution of 8B studied via reaction cross sections , 1999 .

[16]  D W Litzenberg,et al.  On-line monitoring of radiotherapy beams: experimental results with proton beams. , 1999, Medical physics.

[17]  K. Markenroth,et al.  New results on the halo structure of 8B , 1999 .

[18]  R. E. Warner,et al.  Reaction cross sections in Si of light proton-halo candidates 12N and 17Ne , 1998 .

[19]  Pfaff,et al.  Study of the Breakup Reaction 8B-->7Be+p: Absorption Effects and E2 Strength. , 1996, Physical review letters.

[20]  W. Christie,et al.  Interaction cross sections and radii of light nuclei , 1996 .

[21]  Roberts,et al.  Unique potentials for the elastic scattering of 350 MeV 7Li from 12C and 28Si. , 1995, Physical review. C, Nuclear physics.

[22]  Kelley,et al.  Evidence for a proton halo in 8B: Enhanced total reaction cross sections at 20 to 60 MeV/nucleon. , 1995, Physical review. C, Nuclear physics.

[23]  Johansson,et al.  Optical model calculations for the elastic scattering of intermediate energy alpha particles. , 1994, Physical review. C, Nuclear physics.

[24]  J. Wilson,et al.  Geometric model for nuclear absorption from microscopic theory. , 1993, Physical review. C, Nuclear physics.

[25]  Roberts,et al.  Elastic scattering of 318 MeV 6Li from 12C and 28Si: Unique phenomenological and folding-model potentials. , 1993, Physical review. C, Nuclear physics.

[26]  Brown,et al.  Effective interactions for the 0p1s0d nuclear shell-model space. , 1992, Physical review. C, Nuclear physics.

[27]  B. Sherrill,et al.  Initial operating experience with the A1200 fragment separator , 1992 .

[28]  R. Bimbot,et al.  Matter Distribution in Neutron-rich Light-nuclei and Total Reaction Cross-section , 1990 .

[29]  F. Thielemann,et al.  The hot proton-proton chains in low-metallicity objects , 1989 .

[30]  Brown,et al.  High-energy reaction cross sections of light nuclei. , 1989, Physical review. C, Nuclear physics.

[31]  Long,et al.  Measurement of total reaction cross sections of exotic neutron-rich nuclei. , 1987, Physical review letters.

[32]  M. Buenerd,et al.  Trends of total reaction cross sections for heavy ion collisions in the intermediate energy range , 1987, Physical review. C, Nuclear physics.

[33]  S. Woosley,et al.  The Evolution of Radiation-dominated Stars. I. Nonrotating Supermassive Stars , 1986 .

[34]  Love,et al.  Nucleon-nucleon t-matrix interaction for scattering at intermediate energies. , 1985, Physical review. C, Nuclear physics.

[35]  P. Diaconis,et al.  Computer-Intensive Methods in Statistics , 1983 .

[36]  André Lejeune,et al.  Optical-model potential in finite nuclei from Reid's hard core interaction , 1977 .

[37]  P. Karol Nucleus-nucleus reaction cross sections at high energies: Soft-spheres model , 1975 .

[38]  A. Goldhaber Statistical models of fragmentation processes , 1974 .

[39]  D. H. Gloeckner,et al.  Spurious center-of-mass motion , 1974 .

[40]  M. Beiner,et al.  The energy density formalism and the shell structure effects , 1974 .

[41]  T. Forest,et al.  Center-of-mass effects in single-nucleon knock-out reactions , 1974 .