Threefold Fragmentation in Hot.Nuclei with Medium Masses

Dai Guangxi; Wu Heyu; Duan Limin; Li Zuyu; He Zhiyong; Luo Qingzheng; Zhang Baoguo

Chinese Physics C> 1996, Vol. 20> Issue(S3) : 233-241

Threefold Fragmentation in Hot.Nuclei with Medium Masses

Institute of Modem Physics, Chinese Academy of Sciences, Lanzhou, China

Abstract
HTML
Reference
Related

PDF

Abstract：
The threefold massive fragment in hot nuclei with medium mass number has been measured in ⁴⁰Ar+¹¹⁵In, ¹⁰³Rh, and ⁹³Nb reactions at 25MeV/u. The fragments emitted at angles larger than 32° are detected by ten parallel plate position-sensitive avalanche counters (PPAC), each with an area of 25×20cm². The total kinetic energies (TKE),the yield ratio P³² of the threefold fragmentation to Hssion,and the distributions of the fragment mass, velocity, and relative angle,etc., are obtained. From the mass ratio of the fragments, a simple empirical expression is deduced. By analyzing their angular correlation function with a simple space-time model, the time difference between two scission points in the threefold process in the Ar+In reaction system is derived. A systematics of P³² versus Z²/A for hot nuclei is observed.
- hot nucleus ,
- threefold fragmentation ,
- angular correlation function ,
- clusterization of nuclear matter ,
- time differences between two scissions

[1]	Zetian Li , Ning Liu , Bin Zhu . Interplay of 95 GeV Diphoton Excess and Dark Matter in Supersymmetric Triplet Model. Chinese Physics C, 2026, 50(3): 1-11.
[2]	Yugen Lin , Yu Gao . Dark matter subhalo evaporation by Coulomb-like interaction with galactic gas. Chinese Physics C, 2026, 50(1): 015104. doi: 10.1088/1674-1137/ae07be
[3]	Tao Li , Min Liu , Ning Wang . Proton separation energy predictions for proton-rich nuclei with the radial basis function approach and mirror symmetry. Chinese Physics C, 2026, 50(3): 1-6.
[4]	Wentao Zeng , Zehao Lin , Yiran Wang , Shuangquan Zhang , Jinniu Hu , Ying Zhang . Resonant states in the Schrödinger equation solved by the Green's function method. Chinese Physics C, 2026, 50(2): 1-10.
[5]	. Correlation between Zero-Sound modes and nuclear equation of state stiffness detected by light vector boson. Chinese Physics C, 2026, 50(1): 014101. doi: 10.1088/1674-1137/adfa81
[6]	Shuang Qu , Jin-Yan Zhang , Man Bao . Nuclear mass predictions with a Bayesian neural network. Chinese Physics C, 2025, 49(10): 104106. doi: 10.1088/1674-1137/ade958
[7]	Ruiyu Zhou , Ligong Bian . Gravitational waves and dark matter with Witten effect. Chinese Physics C, 2025, 49(11): 115110. doi: 10.1088/1674-1137/adfc36
[8]	Vitalii Vertogradov , Ali Övgün , Daniil Shatov . Formation of regular black hole from baryonic matter. Chinese Physics C, 2025, 49(11): 115103. doi: 10.1088/1674-1137/ade95c
[9]	Xin-Xin Qi , Hao Sun . Copositive criteria for a two-component dark matter model. Chinese Physics C, 2025, 49(10): 103101. doi: 10.1088/1674-1137/ade4b7
[10]	Tetsuaki Moriguchi , Momo Mukai , Naoto Kaname , Akira Ozawa , Shinji Suzuki , Yasushi Abe , Hiroki Arakawa , Tomoya Fujii , Daiki Hamakawa , Sakumi Harayama , Shun Hosoi , Yasuto Inada , Kumi Inomata , Reo Kagesawa , Daisuke Kajiki , Daiki Kamioka , Masanori Kanda , Atsushi Kitagawa , Takaaki Kobayashi , Daisuke Nagae , Sarah Naimi , Kunimitsu Nishimuro , Shunichiro Omika , Misaki Otsu , Mamoru Sakaue , Shinji Sato , Hibiki Seki , Naru Shinozaki , Takeshi Suzuki , Keisuke Tomita , Takayuki Yamaguchi , Yoshitaka Yamaguchi , Asahi Yano , Kenjiro Yokota . Improvements of time-of-flight detector utilizing a thin foil and crossed static electric and magnetic fields. Chinese Physics C, 2025, 49(10): 104001. doi: 10.1088/1674-1137/ade95b
[11]	K. S. Kim , P. T. P. Hutauruk , Seung-il Nam , Chang Ho Hyun . Effect of neutrino electromagnetic properties on quasielastic neutral-current neutrino-nucleus scattering. Chinese Physics C, 2025, 49(11): 113106. doi: 10.1088/1674-1137/adf1f2
[12]	. Double-folding analysis of elastic and inelastic ³He-nucleus scattering at 60 MeV. Chinese Physics C, 2025, 49(11): 114101. doi: 10.1088/1674-1137/ade1cb
[13]	Yiming Gao , Yoshiki K. Tanaka , Vasyl Drozd , Hiroyuki Ekawa , Samuel Escrig , Yan He , Ayumi Kasagi , Enqiang Liu , Manami Nakagawa , Christophe Rappold , Takehiko R. Saito , Ryohei Sekiya , He Wang , Ayari Yanai , Xiaohong Zhou . Feasibility study of measuring interaction cross sections of hypernuclei produced in projectile fragmentation reactions with WASA-FRS setup. Chinese Physics C, 2025, 49(12): 124003. doi: 10.1088/1674-1137/adf4b2
[14]	Peng Yin , Jianmin Dong , Wei Zuo . Effect of tensor correlations on the depletion of nuclear Fermi sea within the extended BHF approach. Chinese Physics C, 2017, 41(11): 114102. doi: 10.1088/1674-1137/41/11/114102
[15]	M. Bashkanov (for the WASA-at-COSY collaboration) . ABC effect in double-pionic nuclear fusion and a pn resonance as its possible origin. Chinese Physics C, 2010, 34(9): 1339-1341. doi: 10.1088/1674-1137/34/9/037
[16]	YE Yan-Lin , ZHOU Xiao-Hong , LIU Wei-Ping , MA Yu-Gang , ZHANG Yu-Hu , XU Fu-Rong . Outline of the progress in the study of radioactive nuclear physics and super-heavy nuclei. Chinese Physics C, 2008, 32(S2): 1-7.
[17]	YE Wei . Possible Dependence of Dissipation Strength on Angular Momentum. Chinese Physics C, 2006, 30(8): 759-760.
[18]	Guo Hua . In-medium QMC Model Parameters and Quark Condensation in Nuclear Matter. Chinese Physics C, 1999, 23(5): 459-468.
[19]	Li Yangguo . Antiproton -Nucleus Charge Exchange Reaction and Inelastic Scattering. Chinese Physics C, 1996, 20(11): 1021-1027.
[20]	Yu Hong , Shen Qixing , Zhang Lin . Angular Distribution of Process e⁺e^－→τ⁺τ^－,τ^－→a₁υτ,a₁→ρπ and Characteristics of a₁ Meson. Chinese Physics C, 1994, 18(7): 583-590.

Access

Get Citation

Dai Guangxi, Wu Heyu, Duan Limin, Li Zuyu, He Zhiyong, Luo Qingzheng and Zhang Baoguo. Threefold Fragmentation in Hot.Nuclei with Medium Masses[J]. Chinese Physics C, 1996, 20(S3): 233-241.

Dai Guangxi, Wu Heyu, Duan Limin, Li Zuyu, He Zhiyong, Luo Qingzheng and Zhang Baoguo. Threefold Fragmentation in Hot.Nuclei with Medium Masses[J]. Chinese Physics C, 1996, 20(S3): 233-241. shu

RIS(for EndNote,Reference Manager,ProCite)

BibTex

Txt

Milestone

Received: 1995-06-15

Fund

Supported by the National Natural Science Foundation of China and the Director Foundation of IMP, the Chinese Academy of Sciences.

Article Metric

Article Views(1308)
PDF Downloads(3)
Cited by(0)

Policy on re-use

To reuse of subscription content published by CPC, the users need to request permission from CPC, unless the content was published under an Open Access license which automatically permits that type of reuse.

通讯作者: 陈斌, bchen63@163.com

1.
沈阳化工大学材料科学与工程学院沈阳 110142

Threefold Fragmentation in Hot.Nuclei with Medium Masses

Institute of Modem Physics, Chinese Academy of Sciences, Lanzhou, China

Received Date: 1995-06-15

Fund Project: Supported by the National Natural Science Foundation of China and the Director Foundation of IMP, the Chinese Academy of Sciences.

Abstract: The threefold massive fragment in hot nuclei with medium mass number has been measured in ⁴⁰Ar+¹¹⁵In, ¹⁰³Rh, and ⁹³Nb reactions at 25MeV/u. The fragments emitted at angles larger than 32° are detected by ten parallel plate position-sensitive avalanche counters (PPAC), each with an area of 25×20cm². The total kinetic energies (TKE),the yield ratio P³² of the threefold fragmentation to Hssion,and the distributions of the fragment mass, velocity, and relative angle,etc., are obtained. From the mass ratio of the fragments, a simple empirical expression is deduced. By analyzing their angular correlation function with a simple space-time model, the time difference between two scission points in the threefold process in the Ar+In reaction system is derived. A systematics of P³² versus Z²/A for hot nuclei is observed.

Threefold Fragmentation in Hot.Nuclei with Medium Masses

Abstract：

Access

Article Metrics

Metrics

通讯作者: 陈斌, bchen63@163.com

Email This Article

Threefold Fragmentation in Hot.Nuclei with Medium Masses

HTML

目录