New determination of the 7Be ground state spectroscopic factor and the 6Li(p,γ)7Be astrophysical S(E) factors

  • The ‘lithium problem’ in Big Bang nucleosynthesis (BBN) has recently focused on reactions involving 7Be. The 6Li(p, γ)7Be reaction can provide us not only with information about 6Li destruction but also with information about 7Be production. In the present work, the proton spectroscopic factor in 7Be is extracted to be 0.70±0.17 from the angular distribution of 7Be(d, 3He)6Li at Ec.m.=6.7 MeV. This value is then used to compute the direct component of the astrophysical 6Li(p, γ)7Beg.s. S(E) factors and determine the resonance parameters from the total S(E) factors.
      PCAS:
  • 加载中
  • [1] B. Fields, K. Olive, Nucl. Phys. A, 777: 208-225 (2006)
    [2] C. Pryke et al, Astrophys. J., 568: 46 (2002)
    [3] E. Komatsu et al. [WMAP Collaboration], Astrophys. J. Suppl., 192: 18 (2011)
    [4] R. Cyburt, B. Fields and K. Olive, J. Cosm. Astro. Phys., 11: 012 (2008)
    [5] Z. H. Li et al, Sci. China Phys. Mech. Astron., 54: s67 (2011)
    [6] H. D. Holmgren and R. L. Johnston, Phys. Rev., 113: 1556 (1959)
    [7] P. D. Parker and R. W. Kavanagh, Phys. Rev., 131: 2578 (1963)
    [8] K. Nagatani, M. R. Dwarakanath, and D. Ashery, Nuclear Physics A, 128: 325 (1969)
    [9] H. Krawinkel et al, Zeitschrift fr Physik A Hadrons and Nuclei, 304: 307 (1982)
    [10] R. G. H. Robertson et al, Phys. Rev. C, 27: 11 (1983)
    [11] H. Volk, H. Krawinkel, R. Santo, and L. Wallek, Zeitschrift fur Physik, 310: 91 (1983)
    [12] T. K. Alexander et al, Nuclear Physics A, 427: 526 (1984)
    [13] J. L. Osborne et al, Nuclear Physics A, 419: 115 (1984)
    [14] M. Hilgemeier et al, Zeitschrift fr Physik A Hadrons and Nuclei, 329: 243 (1988)
    [15] S. Bashkin and R. R. Carlson, Phys. Rev., 97: 1245 (1955)
    [16] J. B. Warren, T. K. Alexander and G. B. Chadwick, Phys. Rev., 101: 242 (1956)
    [17] W. E. Sweeney, Bull. Am. Phys. Soc., 14: 487 (1969)
    [18] Z. E. Switkowski et al, Nucl. Phys. A, 331: 50-60 (1979)
    [19] F. C. Barker, Aust. J. Phys., 33: 159 (1980)
    [20] C. I. W. Tingwell, J. D. King, and D. G. Sargood, Aust. J. Phys., 40: 319-328 (1987)
    [21] F. E. Cecil et al, Nucl. Phys. A, 539: 75 (1992)
    [22] C. Angulo et al, Nucl. Phys. A, 656: 3 (1999)
    [23] K. Arai, D. Baye, P. Descouvemont, Nucl. Phys. A, 699: 963-975 (2002)
    [24] R. M. Prior et al, Phys. Rev. C, 70: 055801 (2004)
    [25] O. Camargo et al, Phys. Rev. C, 78: 034605 (2008)
    [26] J. T. Huang, C. A. Bertulani, and V. Guimaraes, At. Data Nucl. Data Tables, 96: 824 (2010)
    [27] S. B. Dubovichenko et al, Phys. At. Nucl., 74: 984 (2011)
    [28] A. V. Nesterov, V. S. Vasilevsky, and T. P. Kovalenko, Ukr. J. Phys., 56: 645 (2011)
    [29] Y. Xu et al, Nucl. Phys. A, 918: 61 (2013)
    [30] J. J. He et al, Phys. Lett. B, 725: 287-291 (2013)
    [31] G. X. Dong et al, Journal of Physics G: Nuclear and Particle Physics, 44: 045201 (2017)
    [32] E. T. Li et al, Chin. Phys. C, 42: 044001 (2018)
    [33] W. P. Liu et al, Nucl. Instrum. Methods B, 204: 62 (2003)
    [34] W. P. Liu et al, Phys. Rev. Lett., 77: 661 (1996)
    [35] Z. H. Li et al, Phys. Rev. C, 73: 052801 (2005)
    [36] Z. H. Li et al, Phys. Rev. C, 74: 035801 (2006)
    [37] C. M. Perey and F. G. Perey, Atomic Data and Nuclear Data Tables, 17: 1 (1976)
    [38] W. W. Daehnick, J. D. Childs, and Z. Vrcelj, Phys. Rev. C, 21: 2253 (1980)
    [39] M. Igarashi et al, Computer Program TWOFNR (Surrey University version)
    [40] S. Cohen and D. Kurath, Nucl. Phys. A, 101: 1 (1967)
    [41] I. Brida, S. C. Pieper and R. B. Wiringa, Phys. Rev. C, 84: 024319 (2011)
    [42] N. Burtebayev et al, Nucl. Phys. A, 909: 20 (2013)
    [43] J. Su et al, Chin. Phys. Lett., 27: 052101 (2010)
    [44] R. F. Christy and I. Duck, Nucl. Phys. A, 24: 89 (1961)
    [45] C. Rolfs, Nucl. Phys. A, 217: 29 (1973)
    [46] I. Thompson, Computer Physics Reports, 7: 167-212 (1988)
    [47] R. Bouchez et al, J. de Phys., 21: 346 (1960)
    [48] L. Brown and C. Petitjean, Nucl. Phys. A, 117: 343-353 (1968) and the references therein
    [49] G. Mani and A. Dix, Nucl. Phys. A, 106: 251-260 (1968)
    [50] R. E. Azuma et al, Phys. Rev. C, 81: 045805 (2013)
    [51] X. Tang et al, Phys. Rev. C, 67: 015804 (2003)
    [52] B. Guo et al, Phys. Rev. C, 87: 015803 (2013)
  • 加载中

Get Citation
Zhi-Hong Li, Er-Tao Li, Jun Su, Yun-Ju Li, You-Bao Wang, Sheng-Quan Yan, Bing Guo, Ding Nan and Wei-Ping Liu. New determination of the 7Be ground state spectroscopic factor and the 6Li(p,γ)7Be astrophysical S(E) factors[J]. Chinese Physics C, 2018, 42(6): 065001. doi: 10.1088/1674-1137/42/6/065001
Zhi-Hong Li, Er-Tao Li, Jun Su, Yun-Ju Li, You-Bao Wang, Sheng-Quan Yan, Bing Guo, Ding Nan and Wei-Ping Liu. New determination of the 7Be ground state spectroscopic factor and the 6Li(p,γ)7Be astrophysical S(E) factors[J]. Chinese Physics C, 2018, 42(6): 065001.  doi: 10.1088/1674-1137/42/6/065001 shu
Milestone
Received: 2018-01-17
Revised: 2018-03-28
Fund

    Supported by National Natural Science Foundation of China (11375269, 11490563, 11505117), Natural Science Foundation of Guangdong Province (2015A030310012), National Basic Research Program of China (2013CB834406) and National Key Research and Development Program of China (2016YFA0400502)

Article Metric

Article Views(858)
PDF Downloads(40)
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

  1. 本站搜索
  2. 百度学术搜索
  3. 万方数据库搜索
  4. CNKI搜索

Email This Article

Title:
Email:

New determination of the 7Be ground state spectroscopic factor and the 6Li(p,γ)7Be astrophysical S(E) factors

  • 1.  China Institute of Atomic Energy, Beijing 102413, China
  • 2.  College of Physics and Energy, Shenzhen University, Shenzhen 518060, China
Fund Project:  Supported by National Natural Science Foundation of China (11375269, 11490563, 11505117), Natural Science Foundation of Guangdong Province (2015A030310012), National Basic Research Program of China (2013CB834406) and National Key Research and Development Program of China (2016YFA0400502)

Abstract: The ‘lithium problem’ in Big Bang nucleosynthesis (BBN) has recently focused on reactions involving 7Be. The 6Li(p, γ)7Be reaction can provide us not only with information about 6Li destruction but also with information about 7Be production. In the present work, the proton spectroscopic factor in 7Be is extracted to be 0.70±0.17 from the angular distribution of 7Be(d, 3He)6Li at Ec.m.=6.7 MeV. This value is then used to compute the direct component of the astrophysical 6Li(p, γ)7Beg.s. S(E) factors and determine the resonance parameters from the total S(E) factors.

    HTML

Reference (52)

目录

/

DownLoad:  Full-Size Img  PowerPoint
Return
Return