A PROBABLE NEW TYPE OF REACTION MECHANISM —DOUBLE α DIRECT TRANSFER PROCESS

XU Shu-Wei; WU Guo-Hua; MIAO Rong-Zhi; HAN Fei

Chinese Physics C> 1983, Vol. 7> Issue(2) : 217-222

A PROBABLE NEW TYPE OF REACTION MECHANISM —DOUBLE α DIRECT TRANSFER PROCESS

Abstract
HTML
Reference
Related

PDF

Abstract：
It is assumed that ⁸Be consists of two α-particles which are close to each other in configration space. A spectroscopic density of ⁸Be-cluster in the residue nuclei is them obtained which is proportional to the square of the preformation probability of α-particle at nuclear surface. Using the improved method of parametrization of EFRDWBA overlap integral^[1], We calculate the double diffirential energy spectra and angular distributions of α-particles for the reactions ²⁰⁹Bi(¹²C, α) ²¹⁷Fr and extracte the preformation probability of α-particle at the surface of ²¹⁷Fr nuclei from fitting the experimental data. The agreement within the range of calculation error between the preformation probabilities extracted from transfer reactions and α-decay suggests that the reaction ²⁰⁹Bi(¹²C, α) ²¹⁷Fr may be explained as a diuble α direct transfer process.

References

[1]

T. Udagawa, T. Tamura and D. Price, Phys. Rev., C21 (1980), 1891,[2] 徐树威、吴国华、缪容之、韩飞,(待发表).[3] R. Bimbot, D. Gardes, M. F. Rivet, Nucl. Phys.; A189 (1972), 193,[4] 沈文庄、徐树威、王大延、谢元祥、郭忠言、李祖玉, 高能物理与核物理, 1(1977), 71,[5] 郭俊盛、孙锡军、徐晓冀、王傅、刘洪业, 高能物理与核物理, 2 (1978), 143,[6] 徐树威, 冉启慧、马洪范, 2 (1978), 534,[7] 中国科学院近代物理研究所内部资料, 徐树威、吴国华.[8] 谢元祥、范国英等, 中国科学院近代物理研究所科技情报资料汇编, 3 (1979),[9] A. R. Barnet and J. S. Lilley, Phys. Rev., C9 (1974), 2010,[10] 详细情况请参阅文献[2].[11] 中国科学院近代物理研究所内部资料, 缪容之、徐树威.[12] L. Milazzo-colli, G. M. Brage-marcazzan and M. Milazzo, Nuovo Cimcnto, 30A (1975), 632.[13] 中国科学院近代物理研究所内部资料, 韩飞、徐树威.[14] D. Kurath, Phys. Rev., C7 (1973), 1390,[15] U. Facchini and E. Saetta-Menichlla, Encrgia Nucleate, 15 (1968), 54.[16] R. Bonetti and L. Milazzo-colli, Phys. Lett., 49B (1974), 17.

[1]	LI Liang , CHEN Zhi-Qiang , ZHANG Li , XING Yu-Xiang , KANG Ke-Jun . A New Cone-Beam X-Ray CT System with a Reduced Size Planar Detector. Chinese Physics C, 2006, 30(8): 812-817.
[2]	SUN Tian-Xi , DING Xun-Liang , LIU Zhi-Guo , WANG Da-Chun . New Method of Measuring the Properties of Polycapillary X-Ray Lens. Chinese Physics C, 2005, 29(10): 1017-1022.
[3]	GE Yu-Cheng , YE Yan-Lin , ZHENG Tao , WANG Quan-Jin , LI Zhi-Huan , LI Xiang-Qing , JIANG Dong-Xing . Two-Neutron Transfer Induced by ⁶He Nuclear Beam at 25MeV/u on a ⁹Be Target. Chinese Physics C, 2004, 28(3): 262-267.
[4]	WANG Fa-Ya . Design of Accelerating Structure on a Novel Compact Electron Linac. Chinese Physics C, 2004, 28(10): 1109-1115.
[5]	PENG Hong-An , DUAN Chun-Gui , YAN Zhan-Yuan , HE Zhen-Min . An Alternative Mechanism of Glueball Production in the J/ψ Radiative Decays. Chinese Physics C, 2002, 26(8): 747-752.
[6]	YAN WenBiao , YANG ChunBin , CAI Xu . A Poissible Method to Determine the Order of QGP Phase Transitions. Chinese Physics C, 2000, 24(9): 852-857.
[7]	Li Fengtian , Xie Jialin , Wang Yanshan , Wang Bosi . A Novel Control System for RF Power System of LINAC. Chinese Physics C, 1998, 22(10): 932-936.
[8]	Gao Chengqun , Yang Baosheng , Zhou Quanhua . ²⁰Ne+¹²C System and the Double-Alpha Transfer effect for a Deep Optical Potential. Chinese Physics C, 1996, 20(2): 159-164.
[9]	Huo Anxiang , Kuang Haohuai . A Model for Enhancement of the Flux of Very High EnergyParticles During Large Solar Flares. Chinese Physics C, 1996, 20(12): 1068-1072.
[10]	SHENG Hong , HE Guo-Zhu . An Interpretation of Sub-Barrier Fusion Reaction Based on α Transfer Mechanism. Chinese Physics C, 1993, 17(2): 161-165.
[11]	NI Guang-Jiong , ZHANG Min , GONG Jia-Wen . A Rigorous Method for Calculating the Casimir Effect. Chinese Physics C, 1991, 15(8): 695-700.
[12]	PAN Ling-Jun , JIANG Huan-Qing , ZOU Bing-Song . A SYSTEMATIC DISTORTED WAVE IMPULSE APPROXIMATION ANALYSIS OF THE CONVENTIONAL MECHANISM FOR PION DOUBLE CHARGE EXCHANGE. Chinese Physics C, 1990, 14(11): 1014-1022.
[13]	XU Jian-Ming , XU Qing . ANALYSIS OF THE PERFORMANCE OF A NEW TYPE OF LINEAR PERIODIC MAGNETS. Chinese Physics C, 1988, 12(4): 513-520.
[14]	LONG Ming , HUANG Tao . A POSSIBLE FORM OF THE PION'S STRUCTURE FUNCTION. Chinese Physics C, 1986, 10(5): 562-569.
[15]	XU Jian-Ming , XU Qing . A NEW PROJECT OF MULTIPOLE PERMANENT MAGNETS. Chinese Physics C, 1986, 10(1): 120-123.
[16]	YANG Xin-E . THE COMPOSITE MODEL OF LEPTON AND QUARK WITH ONLY ONE CONSTITUENT SCALAR. Chinese Physics C, 1985, 9(5): 537-541.
[17]	LI Jin , JIANG Chun-Hua . A NEW CYLINDRICAL LIGHT GUIDE. Chinese Physics C, 1984, 8(1): 122-124.
[18]	WANG YUN-YONG . A NEW METHOD TO MEASURE THE WIRE TENSION. Chinese Physics C, 1982, 6(6): 771-774.
[19]	Wu Bang-hui , Liu Yong-xian , Hu Shi-ke . A POSSIBLE TYPE OF POTENTIAL FOR THE BOUND STATE OF MESONS. Chinese Physics C, 1980, 4(5): 665-670.
[20]	ZHOU LI-NONG , XIE JIA-LIN . A BI-PERIODIC ACCELERATOR STRUCTURE. Chinese Physics C, 1979, 3(2): 165-175.

Access

Get Citation

XU Shu-Wei, WU Guo-Hua, MIAO Rong-Zhi and HAN Fei. A PROBABLE NEW TYPE OF REACTION MECHANISM —DOUBLE α DIRECT TRANSFER PROCESS[J]. Chinese Physics C, 1983, 7(2): 217-222.

XU Shu-Wei, WU Guo-Hua, MIAO Rong-Zhi and HAN Fei. A PROBABLE NEW TYPE OF REACTION MECHANISM —DOUBLE α DIRECT TRANSFER PROCESS[J]. Chinese Physics C, 1983, 7(2): 217-222. shu

RIS(for EndNote,Reference Manager,ProCite)

BibTex

Txt

Milestone

Received: 1900-01-01
Revised: 1900-01-01

Article Metric

Article Views(2728)
PDF Downloads(497)
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

A PROBABLE NEW TYPE OF REACTION MECHANISM —DOUBLE α DIRECT TRANSFER PROCESS

Corresponding author: XU Shu-Wei,

Received Date: 1900-01-01
Accepted Date: 1900-01-01
Available Online: 1983-04-05

Abstract:

It is assumed that ⁸Be consists of two α-particles which are close to each other in configration space. A spectroscopic density of ⁸Be-cluster in the residue nuclei is them obtained which is proportional to the square of the preformation probability of α-particle at nuclear surface. Using the improved method of parametrization of EFRDWBA overlap integral^[1], We calculate the double diffirential energy spectra and angular distributions of α-particles for the reactions ²⁰⁹Bi(¹²C, α) ²¹⁷Fr and extracte the preformation probability of α-particle at the surface of ²¹⁷Fr nuclei from fitting the experimental data. The agreement within the range of calculation error between the preformation probabilities extracted from transfer reactions and α-decay suggests that the reaction ²⁰⁹Bi(¹²C, α) ²¹⁷Fr may be explained as a diuble α direct transfer process.