Measurement of the forward angle C 12 + C 12 fragmentation differential cross sections at 62 MeV/nucleon
Year: 2026
Type: article
Abstract: The present work reports on high-precision measurements of forward-angle fragmentation differential cross sections for the [12]C +[12] C reaction at 62 MeV/nucleon using the FAZIA array. Angular distributions for fragments from Z = 1 to 6 were extracted in the range 2 <= theta_lab <= 8 degrees. Particle identification was achieved by combining the Delta E - E technique with Pulse Shape Analysis, and precise energy calibrations were performed. The results show that for heavier fragments, the angular distributions are better described by the Van Bibber formulation than by the Goldhaber model, consistent with the dominance of a wide component from dissipative processes in the measured angular range. Notably, alpha particles exhibit an anomalously narrow angular distribution, likely originating from the intrinsic cluster structure of [12]C. Comparisons with existing data at the same incident energy show very good agreement, with a more complete set of species reported here, while a kinematic scaling is proposed to compare our data with previous experimental data at 50 and 95 MeV/nucleon.
Source: Physical Review C
DOI: 10.1103/g18c-kwp9
Authors: G. Guo, G. Casini, B. H. Sun, S. Barlini, A. Camaiani, C. Frosin, I. Lombardo, O. Lopez, S. Piantelli, I. Tanihata, S. Terashima, S. Valdré, G. Verde, F. W. Zhao, L. Baldesi, B. Borderie, R. Bougault, C. Ciampi, I. Dekhissi, J. A. Dueñas, Q. Fable, F. Gramegna, D. Gruyer, A. Hocine, B. Hong, S. Kim, T. Kozik, S. H. Nam, N. Le Neindre, J. Park, M. Parlog, E. Vient, M. Vigilante, C. J. Wang
Institutions: Beihang University, Istituto Nazionale di Fisica Nucleare, Sezione di Firenze, University of Florence, University of Catania, Istituto Nazionale di Fisica Nucleare, Sezione di Catania, Centre National de la Recherche Scientifique, École Nationale Supérieure d'Ingénieurs de Caen, Laboratoire de Physique Corpusculaire de Caen, Institut National de Physique Nucléaire et de Physique des Particules, Université de Caen Normandie, The University of Osaka, Institute of Modern Physics, Université Paris-Saclay, Laboratoire de Physique des 2 Infinis Irène Joliot-Curie, Commissariat à l'Énergie Atomique et aux Énergies Alternatives, Grand Accélérateur National d'Ions Lourds, Universidad de Huelva, Laboratoire des 2 Infinis Toulouse, Université de Toulouse, Istituto Nazionale di Fisica Nucleare, Istituto Nazionale di Fisica Nucleare, Laboratori Nazionali di Legnaro, Korea University, Institute for Basic Science, Jagiellonian University, Horia Hulubei National Institute for R and D in Physics and Nuclear Engineering, Istituto Nazionale di Fisica Nucleare, Sezione di Napoli
Language: English
Subfield: Nuclear and High Energy Physics
Field: Physics and Astronomy
Domain: Physical Sciences
Open Access status: green
OpenAlex ID: W7204097306