The Angular Distributions of intermediate Mass Fragments Emittsd in 30 MeV/u 40Ar+58,64Ni and 115In Reactions

Gou Quanbu; Zhu Yongtai; Xu Hushan; Wei Zhiyong; Lu Jun; Zhang Yuhu; Wang Qi; Li Songlin; Wu Zhongli

Chinese Physics C> 1999, Vol. 23> Issue(4) : 328-333

The Angular Distributions of intermediate Mass Fragments Emittsd in 30 MeV/u ⁴⁰Ar+^58,64Ni and ¹¹⁵In Reactions

Institute of Modern Physics,The Chinese Academy of sciences, Lanzhou 730000

Abstract
HTML
Reference
Related

PDF

Abstract：
The angular distributions of intermediate mass fragments with Z=3-19 emitted in 30 MeV/u ⁴⁰Ar+^58,64Ni and ¹¹⁵In reactions over an angular range of 5°—140°have been measured.Exponential distribution function: dσ/dΩ=N·exp(-θ/a) was used tO fit the measured angular distributions.We have extracted the decay factor a that can be connected with the interaction time τ, and the factor N that is related to the intensity of the emission source.The relationships of a(Z) with Z and N(Z) with Z for different reaction systems and different angular ranges have been discussed. The dependence of angular distributions on isospin and the symmetry of reaction system have also been discussed.

References

[1]

Xu Hushan et al.Nucl Sci.and Tech., 1996, 7: 198–201 2 Zhu Y T et al. Journal of Qingdao University(Quarterly)(in Chinese), 1997, 10:35—37(诸永泰等.青岛大学学报(自然科学版),1997,10:35—37)3 Xu Hushan et al. Chin.Phys.Lett,1997,14:413–416 4 Liu G X et al. High Energy Physics and Nuclear Physics(in Chinese),1997,21:777—782(刘国兴等.高能物理与核物理,1997,21:777—782)5 Guerreau D. Nucl. Phys., 1985, A447:37c—66c6 Qian Tao et al.Chin.Phys.Lett.,1998,15:255–2577 Kiss A et al.Nucl. Phys., 1989, A499:131—1478 Qan X et al.High Energy Physics and Nuclear Physics(in Chinese),1996,20:304—309(钱兴等.高能物理与核物理,1996,20:304—309)9 Wu H Y et al. Nucl.Phys.,1997,A617:385–394 10 Sangster T C et al、Phys. Rev., 1992, C46: 1404–141511 Royer G et al. Nucl. Phys., 1987, A466:139—156 12 Borderie B et al. Z. Phys., 1984, A318:315–321 13 Borderie B et al. Phys. Lett, 1988, B205:26—29 14 Hirsh A S et al. Phys. Rev., 1984, C29:508–52515 Rami F et al. Z. Phys., 1987, A327:207—21616 Sosin Z et al. Nucl. Phys., 1994, A574:474–500 17 Wile J L et al. Phys. Rev., 1992, C45:2300–2319

[1]	Huixiao Duan , Fan Zhang , Kailei Wang , Jun Su . Nuclear temperature of spectator source extracted by neutron spectra in ¹²⁴Sn,¹⁰⁷Sn + ¹²⁰Sn collisions at 600 MeV/nucleon. Chinese Physics C, 2026, 50(2): 1-10.
[2]	. Probing the cluster structure of ⁶Li with the ⁶Li + ¹²C nuclear reaction at 68 MeV. Chinese Physics C, 2026, 50(1): 014102. doi: 10.1088/1674-1137/ae072b
[3]	. 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
[4]	Hanmei Cao , Fanglei Zou , Xiaojun Sun , Jingshang Zhang . Effects of energy levels on the double-differential cross sections of outgoing charged particles for the n+¹⁹F reaction below 20 MeV. Chinese Physics C, 2025, 49(12): 124107. doi: 10.1088/1674-1137/adf49f
[5]	LIU Chang-Long , LU Yi-Ying , YIN LI . Effects of Additional Vacancy-Like Defects Produced by Ion Impealations on Boron Thermal Diffusion in Silicon. Chinese Physics C, 2005, 29(11): 1107-1111.
[6]	Guo Hua . In-medium QMC Model Parameters and Quark Condensation in Nuclear Matter. Chinese Physics C, 1999, 23(5): 459-468.
[7]	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.
[8]	BES Collaboration . Experimental Study of Resonance f₂(1270) in the J/ψ Hadronic Decay. Chinese Physics C, 1993, 17(2): 97-106.
[9]	WU Zhong-Li . ANALYSIS OF THE MOMENTUM DISTRIBUTION WIDTH OF THE PREOJECTILE-LIKE-FRAGMENT FROM HEAVY ION COLLISIONS. Chinese Physics C, 1989, 13(8): 752-754.
[10]	Sa Ben-hao , Zhang Xi-zhen , Li Zhu-xia , Shi Yi-jin . A PRIMARY RESEARCH OF THE PHONON RENORMALIZATION OF NUCLEAR FIELD THEORY. Chinese Physics C, 1980, 4(3): 398-400.

Access

Get Citation

Gou Quanbu, Zhu Yongtai, Xu Hushan, Wei Zhiyong, Lu Jun, Zhang Yuhu, Wang Qi, Li Songlin and Wu Zhongli. The Angular Distributions of intermediate Mass Fragments Emittsd in 30 MeV/u ⁴⁰Ar+^58,64Ni and ¹¹⁵In Reactions[J]. Chinese Physics C, 1999, 23(4): 328-333.

RIS(for EndNote,Reference Manager,ProCite)

BibTex

Txt

Milestone

Received: 1998-05-25
Revised: 1900-01-01

Article Metric

Article Views(3671)
PDF Downloads(632)
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

The Angular Distributions of intermediate Mass Fragments Emittsd in 30 MeV/u ⁴⁰Ar+^58,64Ni and ¹¹⁵In Reactions

Corresponding author: Gou Quanbu,

Institute of Modern Physics,The Chinese Academy of sciences, Lanzhou 730000

Received Date: 1998-05-25
Accepted Date: 1900-01-01
Available Online: 1999-04-05

Abstract: The angular distributions of intermediate mass fragments with Z=3-19 emitted in 30 MeV/u ⁴⁰Ar+^58,64Ni and ¹¹⁵In reactions over an angular range of 5°—140°have been measured.Exponential distribution function: dσ/dΩ=N·exp(-θ/a) was used tO fit the measured angular distributions.We have extracted the decay factor a that can be connected with the interaction time τ, and the factor N that is related to the intensity of the emission source.The relationships of a(Z) with Z and N(Z) with Z for different reaction systems and different angular ranges have been discussed. The dependence of angular distributions on isospin and the symmetry of reaction system have also been discussed.