Projectile size dependence of stopping power

Fast projectile stopping power of two-dimensional strongly correlated electron liquids

– We study the high-velocity-projectile limit of the polarizational contribution to the in-plane stopping power in a strongly coupled two-dimensional electron liquid. The dielectric formalism based on the method of moments is employed. The frequency moments of the loss function are calculated using the model Hamiltonian including the two-dimensional Coulomb interaction potential proportional to...

N/z Dependence of Projectile Fragmentation

W. TRAUTMANN, ∗ P. ADRICH, T. AUMANN, C.O. BACRI, T. BARCZYK, R. BASSINI, S. BIANCHIN, C. BOIANO, A.S. BOTVINA, A. BOUDARD, J. BRZYCHCZYK, A. CHBIHI, J. CIBOR, B. CZECH, M. DE NAPOLI, J.-É. DUCRET, H. EMLING, J.D. FRANKLAND, M. HELLSTRÖM, D. HENZLOVA, G. IMMÈ, I. IORI, H. JOHANSSON, K. KEZZAR, A. LAFRIAKH, A. LE FÈVRE, E. LE GENTIL, Y. LEIFELS, J. LÜHNING, J. LUKASIK, W.G. LYNCH, U. LYNEN, Z. M...

Projectile-charge dependence of ejected-electron spectra.

Projectile-shape dependence of impact craters in loose granular media.

We report on the penetration of cylindrical projectiles dropped from rest into a dry, noncohesive granular medium. The cylinder length, diameter, density, and tip shape are all explicitly varied. For deep penetrations, as compared to the cylinder diameter, the data collapse onto a single scaling law that varies as the 1/3 power of the total drop distance, the 1/2 power of cylinder length, and t...

Projectile dependence of single-excitation cross sections at intermediate velocities.

We study 1s→2s(2p) excitation of hydrogen as a function of the nuclear charge of the projectile, ZP , for a fixed impact velocity, v51.3 a.u., for which electron excitation, capture, and ionization are competitive processes. For this purpose, we have performed large ab initio close-coupling calculations using a molecular basis in the framework of the impact-parameter method. Excitation probabil...