Direct Radiative Capture to Continuum States

HUO Yu-Kun; YUAN Zhu-Shu

Chinese Physics C> 1992, Vol. 16> Issue(1) : 82-89

Direct Radiative Capture to Continuum States

HUO Yu-Kun ^, ,
YUAN Zhu-Shu

Nuclear Science Department,Fudan University,Shanghai 200433

Abstract
HTML
Reference
Related

PDF

Abstract：
A formula for the calculation of the cross sections,of nuclear transition to continuum states induced by direct radiative capture of intermediate-energy proton is deduced.The transition amplitude includes two terms corresponding to potential-scattering to potential-scattering transitions and potential-scattering to resonance-scatting transitions,respectively.The model is compard with available experimental data of the ¹¹B(p,γ₁₉)¹²C reaction,and the results show that the direct capture mechanism is capable to account for the main features of the measured data within the reasonable parameter scope,and,in the present case,the contributions from two terms are of the same order of magnitude.The physical significance of the results is also discussed.

References

[1]

M. A. Kovash et al., Phys. Rev. Lett., 42(1979), 700.[2] J. T. Londergan and L. D. Ludeking, Phys. Rev.; C25(1982), 1722.[3] S. F. Tsai and S. T. Londergan, Phys. Rev. Lett., 43(1979), 576.[4] L. G. Arnold, Phys. Rev. Lett., 42(1979), 1253[5] Dean Halderson and R. J. Philpott, Phys. Rev. Lett., 46(1981), 100.[6] R. J. Philpott and Dean Halderson, Nucl. Phys., A375(1982), 169.[7] H. R. Weller et al., Phys. Rev., C25(1982), 2921:[8] M. Nomachi et al., Phys. Rev., C9(1985), 242.[9] A. Anghinolfi et al., Nucl. Phys., A399(1983), 66.[10] D. Dowel et al., Phys, Rev, Lett., 50(1983), 1191[11] J. D. Kalen et al., Phys. Rev., C39(1989), 340.H. J. Hausman et al., Phys, Rev., C37(1988);503[12] S. L. Blatt. AIP Conf, Proc. No. 125, edited by S, Raman (AIP;. New York,1984) p. 570[13] S. L. Blatt et al., Phys. Rev., C30(1984), 423.[14] T. W. Rackers et al., Phys. Rev., C37(1988), I759.[15] I. Bergqvist, in Neutron Radiative, Capture, edited by R. E. Chrien (pergamon,New York, 1984) p. 33[16] Y. K. Ho and M. A. Lone, Nucl. Rhys., A406(1983); 18.[17] Y. K. Ho and M. A. Lone, Nucl. Phys., A406(1983), 1.[18] C. M. Vincent and H. T. Fortune, Phys.Rev., C2(1970),782.[19] H. T. Rose and D. M. Brink, Rev. Mod.Phys, 39(1967),306.[20] J. M. Lafferty and S. R. Cotanch, Nucl.Phys., A373(1982), 363.[21] F. Ajzenberg-Selove, Nucl. Phys., A433(1985),1.

[1]	MA Yin-Qun , TIAN Yuan , MA Zhong-Yu . Theoretical Study of $\bf ^2H(d,\bm\upgamma)^4He$ at Low Energies. Chinese Physics C, 2006, 30(12): 1242-1245.
[2]	LIU Zu-Hua , ZHOU Hong-Yu . Nuclear Halo Effect on Direct Nucleon Capture Cross Sections. Chinese Physics C, 2005, 29(10): 974-977.
[3]	LIU Jian-Feng , LI Chun-Juan , ZHANG Guo-Hui . Study on the Mass Energy Relativities of the Reaction Mechanisms in the Neutron Radiative Capture. Chinese Physics C, 2004, 28(8): 832-837.
[4]	LIU Jian-Feng , ZHAO Wei-Juan . Stuty on the Process of the Fast Neutron Radiative Capture for ⁴⁰Ca and ²⁰⁸Pb. Chinese Physics C, 2002, 26(11): 1158-1165.
[5]	LIU Jian-Feng , ZHAO Wei-Juan , SU Zong-Di . Study on γ-Ray Strength Function of Neutron Radiative Capture for Middle and Heavy Nuclei. Chinese Physics C, 2002, 26(12): 1254-1263.
[6]	LIU Jian-Feng , ZHAO Wei-Juan , WANG Feng-Ge , SU Zong-Di . Study on γ-Ray Strength Functions and Energy Spectra in the Neutron Radiative Capture of ¹⁹⁷Au. Chinese Physics C, 2001, 25(10): 994-1001.
[7]	ZHAO Wei-Juan , YANG Liu , LIU Jian-Feng , HUO Yu-Kun . Interference Phenomenona of Doorday State Procedure in Radiative Capture Reactions. Chinese Physics C, 2001, 25(9): 850-858.
[8]	ZHAO WeiJuan , LIU JianFeng , HUO YuKun . Resonance Phenomenon in the Fast Neutron Radiative Capture Reaction for ¹²C. Chinese Physics C, 2000, 24(12): 1137-1141.
[9]	Lu Minghui , Ma Weixing , Bijan Saghai , Li Zhenping . Study of K-meson Photoproduction and Associated Radiative Capture Process. Chinese Physics C, 1998, 22(3): 255-259.
[10]	LIU Jian-Feng , Huo Yu-Kun , YUAN Zhu-Shu . Mass Shell and Even-odd Effects in Radiative Capture Reaction. Chinese Physics C, 1991, 15(4): 349-357.
[11]	MU Yun-Shan , XU Hai-Shan , XIANG Zheng-Yu , LI Ye-Xiang , WANG Shi-Ming , LIU Jian-Feng . Fast Neutron Capture Cross Section of Natural Molybdenum. Chinese Physics C, 1991, 15(1): 66-70.
[12]	JIANG Huan-Qing . μ^－ CAPTURE IN NUCLEI. Chinese Physics C, 1990, 14(6): 532-536.
[13]	SONG Xiao-Tong , CHEN Zheng . THE FORMATION CROSS SECTION FOR (dμ) ATOM IN RADIATIVE CAPTURE PROCESS. Chinese Physics C, 1986, 10(6): 647-655.
[14]	WANG Zheng-Da . A STUDY OF THE NUCLEAR POTENTIAL BETWEEN TWO NUCLEI. Chinese Physics C, 1986, 10(3): 349-353.
[15]	HUO Yu-Kun , LIU Jian-Feng . A CONSTRUCTIVE INTERFERENCE EFFECT IN THE CHANNEL RADIATIVE CAPTURE PROCESS. Chinese Physics C, 1986, 10(6): 711-714.
[16]	CAI Yan-Huang , FU De-Ji , XIA Ke-Ding , XU Gong-Ou . EFFECT OF MULTIPOLE VIBRATION ON M1 TRANSITION OF 1⁺ STATES IN ²⁰⁸Pb. Chinese Physics C, 1984, 8(5): 611-618.
[17]	LIU Xian-Hui , LI Yang-Guo . QUADRUPOLE TRANSITION WITH π-NUCLEUS DOUBLE CHARGE EXCHANGE. Chinese Physics C, 1983, 7(2): 197-202.
[18]	XU Shu-Wei , WU Guo-Hua , MIAO Rong-Zhi , HAN Fei . TRY TO EXTRACT THE PREFORMATION PROBABILITY OF α-CLUSTER AT THE SURFACE OF HEAVY NUCLEI BY MEANS OF α-TRANSFER REACTIONS LEADING TO THE CONTINUUM STATES. Chinese Physics C, 1983, 7(1): 95-100.
[19]	LIU Jian-Feng , HUO Yu-Kun . RADIATIVE CAPTURE IN THE INELASTIC CHANNEL OF THE COMPOUND NUCLEUS. Chinese Physics C, 1983, 7(3): 355-360.
[20]	HU JI-MIN . A CONTINUOUS MEDIUM MODEL OF ATOMIC NUCLEI. Chinese Physics C, 1981, 5(2): 244-254.

Access

Get Citation

HUO Yu-Kun and YUAN Zhu-Shu. Direct Radiative Capture to Continuum States[J]. Chinese Physics C, 1992, 16(1): 82-89.

HUO Yu-Kun and YUAN Zhu-Shu. Direct Radiative Capture to Continuum States[J]. Chinese Physics C, 1992, 16(1): 82-89. shu

RIS(for EndNote,Reference Manager,ProCite)

BibTex

Txt

Milestone

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

Article Metric

Article Views(2463)
PDF Downloads(527)
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

Direct Radiative Capture to Continuum States

HUO Yu-Kun ^,
YUAN Zhu-Shu

Corresponding author: HUO Yu-Kun,

Nuclear Science Department,Fudan University,Shanghai 200433

Received Date: 1900-01-01
Accepted Date: 1900-01-01
Available Online: 1992-01-05

Abstract: A formula for the calculation of the cross sections,of nuclear transition to continuum states induced by direct radiative capture of intermediate-energy proton is deduced.The transition amplitude includes two terms corresponding to potential-scattering to potential-scattering transitions and potential-scattering to resonance-scatting transitions,respectively.The model is compard with available experimental data of the ¹¹B(p,γ₁₉)¹²C reaction,and the results show that the direct capture mechanism is capable to account for the main features of the measured data within the reasonable parameter scope,and,in the present case,the contributions from two terms are of the same order of magnitude.The physical significance of the results is also discussed.