Evidence for a universal trend in odd-even staggering in elemental fragmentation cross sections of sulfur isotopes
We present a measurement of elemental fragmentation cross sections (EFCSs) for $^{32\ensuremath{-}38}\mathrm{S}$ on a carbon target at approximately 200 MeV/nucleon. Our measurement, together with existing data, reveals a universal trend toward unity in the odd-even staggering (OES) magnitude of the EFCSs with increasing projectile isospin and consistency in its strength variation across different isotopic chains. This is well reproduced by the isospin-dependent quantum molecular dynamics model coupled with the GEMINI evaporation model (IQMD+GEMINI). The magnitude of OES exhibits a dependence on the excitation energy distribution (EED) of prefragments in the collision phase, providing a potential method for evaluating the EED using high-precision EFCS data.
Authors
- Chuan-Ye Liu
- I. Tanihata (ORCID: https://orcid.org/0000-0002-7484-0921)
- Z. Sun (ORCID: https://orcid.org/0000-0002-7667-3178)
- Li‐Sheng Geng (ORCID: https://orcid.org/0000-0002-5626-0704)
- S. T. Wang (ORCID: https://orcid.org/0000-0002-3585-3893)
- Erxi Xiao (ORCID: https://orcid.org/0009-0005-6457-872X)
- Meng Wang (ORCID: https://orcid.org/0000-0003-4067-1127)
- Ge Guo (ORCID: https://orcid.org/0000-0002-6740-2325)
- Xueheng Zhang (ORCID: https://orcid.org/0000-0002-4248-5216)
- Xiao-Dong Xu (ORCID: https://orcid.org/0000-0002-2347-4490)
- B. Sun (ORCID: https://orcid.org/0000-0001-9868-5711)
- Jichao Zhang (ORCID: https://orcid.org/0000-0002-7400-6726)
- Tianyu Wu (ORCID: https://orcid.org/0000-0002-5574-423X)
- Yanmei Sun (ORCID: https://orcid.org/0000-0001-9555-2526)
- Jun Su (ORCID: https://orcid.org/0000-0002-2718-9451)
- Jun-Yao Xu
- Jinrong Liu (ORCID: https://orcid.org/0009-0002-1160-6481)
- Li Zhu (ORCID: https://orcid.org/0000-0001-5249-6536)
- Guang-Shuai Li (ORCID: https://orcid.org/0000-0002-8286-6822)
- J. Zhao (ORCID: https://orcid.org/0000-0003-0966-4850)
- Feng Wang (ORCID: https://orcid.org/0000-0002-9046-3388)
- Chen-Gui Lu
- Liuchun He (ORCID: https://orcid.org/0000-0002-0109-3451)
- Yong Zheng
- Satoru Terashima
- Wen-Jian Lin
- Changjian Wang (ORCID: https://orcid.org/0009-0007-2313-4182)
- Xianglun Wei (ORCID: https://orcid.org/0009-0001-9941-1226)
Institutions
- Sun Yat-sen University (CN)
- Chinese Academy of Sciences (CN)
- Institute of Modern Physics (CN)
- Beihang University (CN)
Publication Details
- Journal
- Physical review. C
- Published
- 2025-10-14
- DOI
- https://doi.org/10.1103/y1mk-5rbm
- Primary Topic
- Nuclear physics research studies
- Type
- article
- Field-Weighted Citation Impact
- 0.00