Impact of the in-medium cross section on cluster spectra in ${}^{40,48}\mathrm{Ca}+{}^{58,64}\mathrm{Ni}$ collisions at $56$ and $140$ $\mathbf{\mathrm{MeV}}/\mathrm{\mathbf{nucleon}}$
Fuente:
arXiv
Saved in:
| Main Authors: | , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , |
|---|---|
| Format: | Preprint |
| Published: |
2025
|
| Subjects: | |
| Online Access: | |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1866917235951403008 |
|---|---|
| author | Tam, C. K. Chajecki, Z. Wang, R. S. Teh, F. C. E. Ikeno, N. Lynch, W. G. Ono, A. Tsang, M. B. Anthony, A. Barlini, S. Barney, J. Brown, K. W. Camaiani, A. Chbihi, A. Dell'Aquila, D. Estee, J. Galindo-Uribarri, A. Guan, F. Hong, B. Isobe, T. Jhang, G. Khanal, O. B. Kim, Y. J. Lee, H. S. Lee, J. W. Lee, J. -W. Manfredi, J. Morelli, L. Morfouace, P. Nam, S. H. Niu, C. Y. Padilla-Rodal, E. Park, J. Sweany, S. Tsang, C. Y. Verde, G. Wieske, J. Zhu, K. |
| author_facet | Tam, C. K. Chajecki, Z. Wang, R. S. Teh, F. C. E. Ikeno, N. Lynch, W. G. Ono, A. Tsang, M. B. Anthony, A. Barlini, S. Barney, J. Brown, K. W. Camaiani, A. Chbihi, A. Dell'Aquila, D. Estee, J. Galindo-Uribarri, A. Guan, F. Hong, B. Isobe, T. Jhang, G. Khanal, O. B. Kim, Y. J. Lee, H. S. Lee, J. W. Lee, J. -W. Manfredi, J. Morelli, L. Morfouace, P. Nam, S. H. Niu, C. Y. Padilla-Rodal, E. Park, J. Sweany, S. Tsang, C. Y. Verde, G. Wieske, J. Zhu, K. |
| contents | Although significant efforts have been made to investigate the density dependence of the nuclear symmetry energy, the influence of the in-medium cross section on particle production in transport models is not well constrained. The in-medium cross section reflects the dynamic situation of the medium such as a nontrivial phase space distribution. In this study, we analyze the transverse momentum spectra of $p$, $d$, $t$, ${}^3{\mathrm{He}}$ and $α$ particles emitted near mid-rapidity in central $^{40,48}\mathrm{Ca}$ + $^{58, 64}\mathrm{Ni}$ reactions at $56$ and $140$ $\mathrm{MeV}/\mathrm{nucleon}$. The Antisymmetrized Molecular Dynamics ($\mathrm{AMD}$) model is chosen as the transport model for data comparison. Central events are selected based on charged-particle multiplicity in both the experimental data and AMD calculations after applying an experimental filter. Our results show that the in-medium nucleon-nucleon scattering cross-sections are more strongly reduced at $56$ $\mathrm{MeV}/\mathrm{nucleon}$ than at $140$ $\mathrm{MeV}/\mathrm{nucleon}$ incident energy. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2512_10193 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Impact of the in-medium cross section on cluster spectra in ${}^{40,48}\mathrm{Ca}+{}^{58,64}\mathrm{Ni}$ collisions at $56$ and $140$ $\mathbf{\mathrm{MeV}}/\mathrm{\mathbf{nucleon}}$ Tam, C. K. Chajecki, Z. Wang, R. S. Teh, F. C. E. Ikeno, N. Lynch, W. G. Ono, A. Tsang, M. B. Anthony, A. Barlini, S. Barney, J. Brown, K. W. Camaiani, A. Chbihi, A. Dell'Aquila, D. Estee, J. Galindo-Uribarri, A. Guan, F. Hong, B. Isobe, T. Jhang, G. Khanal, O. B. Kim, Y. J. Lee, H. S. Lee, J. W. Lee, J. -W. Manfredi, J. Morelli, L. Morfouace, P. Nam, S. H. Niu, C. Y. Padilla-Rodal, E. Park, J. Sweany, S. Tsang, C. Y. Verde, G. Wieske, J. Zhu, K. Nuclear Theory Nuclear Experiment Although significant efforts have been made to investigate the density dependence of the nuclear symmetry energy, the influence of the in-medium cross section on particle production in transport models is not well constrained. The in-medium cross section reflects the dynamic situation of the medium such as a nontrivial phase space distribution. In this study, we analyze the transverse momentum spectra of $p$, $d$, $t$, ${}^3{\mathrm{He}}$ and $α$ particles emitted near mid-rapidity in central $^{40,48}\mathrm{Ca}$ + $^{58, 64}\mathrm{Ni}$ reactions at $56$ and $140$ $\mathrm{MeV}/\mathrm{nucleon}$. The Antisymmetrized Molecular Dynamics ($\mathrm{AMD}$) model is chosen as the transport model for data comparison. Central events are selected based on charged-particle multiplicity in both the experimental data and AMD calculations after applying an experimental filter. Our results show that the in-medium nucleon-nucleon scattering cross-sections are more strongly reduced at $56$ $\mathrm{MeV}/\mathrm{nucleon}$ than at $140$ $\mathrm{MeV}/\mathrm{nucleon}$ incident energy. |
| title | Impact of the in-medium cross section on cluster spectra in ${}^{40,48}\mathrm{Ca}+{}^{58,64}\mathrm{Ni}$ collisions at $56$ and $140$ $\mathbf{\mathrm{MeV}}/\mathrm{\mathbf{nucleon}}$ |
| topic | Nuclear Theory Nuclear Experiment |
| url | https://arxiv.org/abs/2512.10193 |