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Fusion of 12C+28Si at deep sub-barrier energies

Fuente: arXiv

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Bibliographic Details
Main Authors:	Stefanini, A. M., Montagnoli, G., Del Fabbro, M., Goasduff, A., Jorquera, P. A. Aguilera, Andreetta, G., Angelini, F., DAuria, L. V., Balogh, M., Bazzacco, D., Benito, J., Benzoni, G., Bentley, M. A., Bez, N., Bonhomme, A., Bottoni, S., Bracco, A., Brugnara, D., Busak, L., Capra, S., Carollo, S., Casans, S., Clement, E., Cocconi, P., Cogo, A., Colucci, G., Conte, A., Coradin, E., Corradi, L., Courtin, S., DeAngelis, G., Deltoro, J. M., Del Piero, G., Depalo, R., Dudouet, J., Ertoprak, A., Fioretto, E., Gadea, A., Galtarossa, F., Gambalonga, A., Giaz, A., Servin, B. Gongora, Gonzalez, V., Gottardo, A., Gozzelino, A., Harmant, G., Heine, M., Kuti, I., Labiche, M., Lenzi, S., Leoni, S., Mazzocco, M., Menegazzo, R., Mengoni, D., Mijatovic, T., Million, B., Monpribat, E., Nannini, A., Napoli, D. R., Navarro-Anton, A. E., del Alamo, R. Nicolas, Nyberg, J., Paschalis, S., Pellumaj, J., Perez-Vidal, R. M., Petri, M., Pilotto, E., Pigliapoco, S., Podolyak, Zs., Polettini, M., Pullia, A., Ramina, L., Rampazzo, M., Raniero, W., Rebeschini, M., Recchia, F., Reiter, P., Rezynkina, K., Rocchini, M., Rosso, D., Sanchis, E., Scarcioffolo, M., Scarpa, D., Senyigit, M., Simpson, J., Sohler, D., Stezowski, O., Stramaccioni, D., Szilner, S., Theisen, Ch., Toniolo, N., Trzcinska, A., Dobon, J. J. Valiente, Veronese, F., Vesic, Jelena, Volpe, V., Wimmer, K., Zago, L., Zanon, I., Zielinska, M.
Format:	Preprint
Published:	2025
Subjects:	Nuclear Experiment
Online Access:	Acceder al recurso
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_version_	1866915516599238656
author	Stefanini, A. M. Montagnoli, G. Del Fabbro, M. Goasduff, A. Jorquera, P. A. Aguilera Andreetta, G. Angelini, F. DAuria, L. V. Balogh, M. Bazzacco, D. Benito, J. Benzoni, G. Bentley, M. A. Bez, N. Bonhomme, A. Bottoni, S. Bracco, A. Brugnara, D. Busak, L. Capra, S. Carollo, S. Casans, S. Clement, E. Cocconi, P. Cogo, A. Colucci, G. Conte, A. Coradin, E. Corradi, L. Courtin, S. DeAngelis, G. Deltoro, J. M. Del Piero, G. Depalo, R. Dudouet, J. Ertoprak, A. Fioretto, E. Gadea, A. Galtarossa, F. Gambalonga, A. Giaz, A. Servin, B. Gongora Gonzalez, V. Gottardo, A. Gozzelino, A. Harmant, G. Heine, M. Kuti, I. Labiche, M. Lenzi, S. Leoni, S. Mazzocco, M. Menegazzo, R. Mengoni, D. Mijatovic, T. Million, B. Monpribat, E. Nannini, A. Napoli, D. R. Navarro-Anton, A. E. del Alamo, R. Nicolas Nyberg, J. Paschalis, S. Pellumaj, J. Perez-Vidal, R. M. Petri, M. Pilotto, E. Pigliapoco, S. Podolyak, Zs. Polettini, M. Pullia, A. Ramina, L. Rampazzo, M. Raniero, W. Rebeschini, M. Recchia, F. Reiter, P. Rezynkina, K. Rocchini, M. Rosso, D. Sanchis, E. Scarcioffolo, M. Scarpa, D. Senyigit, M. Simpson, J. Sohler, D. Stezowski, O. Stramaccioni, D. Szilner, S. Theisen, Ch. Toniolo, N. Trzcinska, A. Dobon, J. J. Valiente Veronese, F. Vesic, Jelena Volpe, V. Wimmer, K. Zago, L. Zanon, I. Zielinska, M.
author_facet	Stefanini, A. M. Montagnoli, G. Del Fabbro, M. Goasduff, A. Jorquera, P. A. Aguilera Andreetta, G. Angelini, F. DAuria, L. V. Balogh, M. Bazzacco, D. Benito, J. Benzoni, G. Bentley, M. A. Bez, N. Bonhomme, A. Bottoni, S. Bracco, A. Brugnara, D. Busak, L. Capra, S. Carollo, S. Casans, S. Clement, E. Cocconi, P. Cogo, A. Colucci, G. Conte, A. Coradin, E. Corradi, L. Courtin, S. DeAngelis, G. Deltoro, J. M. Del Piero, G. Depalo, R. Dudouet, J. Ertoprak, A. Fioretto, E. Gadea, A. Galtarossa, F. Gambalonga, A. Giaz, A. Servin, B. Gongora Gonzalez, V. Gottardo, A. Gozzelino, A. Harmant, G. Heine, M. Kuti, I. Labiche, M. Lenzi, S. Leoni, S. Mazzocco, M. Menegazzo, R. Mengoni, D. Mijatovic, T. Million, B. Monpribat, E. Nannini, A. Napoli, D. R. Navarro-Anton, A. E. del Alamo, R. Nicolas Nyberg, J. Paschalis, S. Pellumaj, J. Perez-Vidal, R. M. Petri, M. Pilotto, E. Pigliapoco, S. Podolyak, Zs. Polettini, M. Pullia, A. Ramina, L. Rampazzo, M. Raniero, W. Rebeschini, M. Recchia, F. Reiter, P. Rezynkina, K. Rocchini, M. Rosso, D. Sanchis, E. Scarcioffolo, M. Scarpa, D. Senyigit, M. Simpson, J. Sohler, D. Stezowski, O. Stramaccioni, D. Szilner, S. Theisen, Ch. Toniolo, N. Trzcinska, A. Dobon, J. J. Valiente Veronese, F. Vesic, Jelena Volpe, V. Wimmer, K. Zago, L. Zanon, I. Zielinska, M.
contents	The existence of fusion hindrance is not well established in light heavy-ion systems. Studying slightly heavier cases allows extrapolating the trend to light systems of astrophysical interest. Fusion of 12C + 28Si has been measured down to deep sub-barrier energies, using 28Si beams from the XTU Tandem accelerator of LNL on thin 12C targets. The fusion-evaporation residues were detected by a detector telescope following an electrostatic beam separator, and coincidences between the gamma-ray array AGATA and segmented silicon detectors DSSD were performed, where the evaporated light charged particles were identified by pulse shape analysis. Fusion cross sections have been obtained in the wide range 150 mb-42 nb. Coupled-channel (CC) calculations using a Woods-Saxon potential reproduce the data above 0.1 mb. Below that, hindrance shows up and the CC results overestimate the cross sections which get close to the one-dimensional potential tunnelling limit. This suggests that the coupling strengths gradually vanish, as predicted by the adiabatic model. The hindrance threshold follows a recently updated phenomenological systematics.
format	Preprint
id	arxiv_https___arxiv_org_abs_2509_22349
institution	arXiv
publishDate	2025
record_format	arxiv
spellingShingle	Fusion of 12C+28Si at deep sub-barrier energies Stefanini, A. M. Montagnoli, G. Del Fabbro, M. Goasduff, A. Jorquera, P. A. Aguilera Andreetta, G. Angelini, F. DAuria, L. V. Balogh, M. Bazzacco, D. Benito, J. Benzoni, G. Bentley, M. A. Bez, N. Bonhomme, A. Bottoni, S. Bracco, A. Brugnara, D. Busak, L. Capra, S. Carollo, S. Casans, S. Clement, E. Cocconi, P. Cogo, A. Colucci, G. Conte, A. Coradin, E. Corradi, L. Courtin, S. DeAngelis, G. Deltoro, J. M. Del Piero, G. Depalo, R. Dudouet, J. Ertoprak, A. Fioretto, E. Gadea, A. Galtarossa, F. Gambalonga, A. Giaz, A. Servin, B. Gongora Gonzalez, V. Gottardo, A. Gozzelino, A. Harmant, G. Heine, M. Kuti, I. Labiche, M. Lenzi, S. Leoni, S. Mazzocco, M. Menegazzo, R. Mengoni, D. Mijatovic, T. Million, B. Monpribat, E. Nannini, A. Napoli, D. R. Navarro-Anton, A. E. del Alamo, R. Nicolas Nyberg, J. Paschalis, S. Pellumaj, J. Perez-Vidal, R. M. Petri, M. Pilotto, E. Pigliapoco, S. Podolyak, Zs. Polettini, M. Pullia, A. Ramina, L. Rampazzo, M. Raniero, W. Rebeschini, M. Recchia, F. Reiter, P. Rezynkina, K. Rocchini, M. Rosso, D. Sanchis, E. Scarcioffolo, M. Scarpa, D. Senyigit, M. Simpson, J. Sohler, D. Stezowski, O. Stramaccioni, D. Szilner, S. Theisen, Ch. Toniolo, N. Trzcinska, A. Dobon, J. J. Valiente Veronese, F. Vesic, Jelena Volpe, V. Wimmer, K. Zago, L. Zanon, I. Zielinska, M. Nuclear Experiment The existence of fusion hindrance is not well established in light heavy-ion systems. Studying slightly heavier cases allows extrapolating the trend to light systems of astrophysical interest. Fusion of 12C + 28Si has been measured down to deep sub-barrier energies, using 28Si beams from the XTU Tandem accelerator of LNL on thin 12C targets. The fusion-evaporation residues were detected by a detector telescope following an electrostatic beam separator, and coincidences between the gamma-ray array AGATA and segmented silicon detectors DSSD were performed, where the evaporated light charged particles were identified by pulse shape analysis. Fusion cross sections have been obtained in the wide range 150 mb-42 nb. Coupled-channel (CC) calculations using a Woods-Saxon potential reproduce the data above 0.1 mb. Below that, hindrance shows up and the CC results overestimate the cross sections which get close to the one-dimensional potential tunnelling limit. This suggests that the coupling strengths gradually vanish, as predicted by the adiabatic model. The hindrance threshold follows a recently updated phenomenological systematics.
title	Fusion of 12C+28Si at deep sub-barrier energies
topic	Nuclear Experiment
url	https://arxiv.org/abs/2509.22349