Abstract
There are well-known systematic disagreements in partial photoneutron reaction cross sections obtained using quasimonoenergetic annihilation photons in experiments based on neutron multiplicity sorting methods. Using newly proposed criteria we demonstrate that a large part of the systematic uncertainty comes from certain shortcomings of experimental methods of neutron multiplicity sorting. To develop methods of correction of data obtained in experiments a new approach to data evaluation was developed in which a combined model of photonuclear reactions is used to decompose experimental total neutron yield reaction cross sections into partial reaction contributions. Evaluated cross sections of partial photoneutron reactions obtained using this method show a good agreement with results of alternative experiments.
Similar content being viewed by others
References
I.A. Pshenichnov, E.V. Karpechev, A.B. Kurepin, I.N. Mishustin, Yad. Fiz. 74, 1 (2011).
B.L. Berman, S.S. Fultz, Rev. Mod. Phys. 47, 713 (1975).
S.S. Dietrich, B.L. Berman, At. Data Nucl. Data Tables 38, 199 (1988).
A.V. Varlamov, V.V. Varlamov, D.S. Rudenko, M.E. Stepanov, Atlas of Giant Dipole Resonances (IAEA, Vienna, Austria, 1999) INDC(NDS)-394.
Russia Lomonosov Moscow State University Skobeltsyn Institute of Nuclear Physics Centre for Photonuclear Experiments Data database, Nuclear Reaction Database (EXFOR), http://cdfe.sinp.msu.ru/exfor/index.php and USA National Nuclear Data Center database CSISRS and EXFOR Nuclear reaction experimental data, http://www.nndc.bnl.gov/exfor/exfor00.htm.
R.L. Bramblett, J.T. Caldwell, R.R. Harvey, S.C. Fultz, Phys. Rev. B 133, 869 (1964).
R. Bergere, H. Beil, A. Veyssiere, Nucl. Phys. A 121, 463 (1968).
E. Wolynec, A.R.V. Martinez, P. Gouffon et al., Phys. Rev. C 29, 1137 (1984).
E. Wolynec, M.N. Martins, Rev. Bras. Fis. 17, 56 (1987).
B.L. Berman, R.E. Pywell, S.S. Dietrich et al., Phys. Rev. C 36, 1286 (1987).
V.V. Varlamov, N.N. Peskov, D.S. Rudenko, M.E. Stepanov, Consistent Evaluation of Photoneutron Reaction Cross-sections Using Data Obtained in Experiments with Quasimonoenergetic Annihilation Photon Beams at Livermore (USA) and Saclay (France) (IAEA NDS, Vienna, Austria, 2004) p. 37 INDC(CCP)-440.
V.V. Varlamov, B.S. Ishkhanov, Study of Consistency Between (γ, xn), [γ, n) + (γ, np)] and (γ, 2n) Reaction Cross Sections Using Data Systematics (IAEA, Vienna, Austria, 2002) INDC(CCP)-433.
V.V. Varlamov, B.S. Ishkhanov, V.N. Orlin, V.A. Chetvertkova, Bull. Rus. Acad. Sci. 74, 883 (2010).
V.V. Varlamov, B.S. Ishkhanov, V.N. Orlin, S.Yu. Troshchiev, Bull. Rus. Acad. Sci. 74, 842 (2010).
B.S. Ishkhanov, V.N. Orlin, Phys. Part. Nucl. 38, 232 (2007).
B.S. Ishkhanov, V.N. Orlin, Phys. At. Nucl. 71, 493 (2008).
B.S. Ishkhanov, V.N. Orlin, K.A. Stopani, V.V. Varlamov, Photonuclear Reactions and Astrophysics, in The Universe Evolution: Astrophysical and Nuclear Aspects, edited by I. Strakovsky, L. Blokhintsev (Nova Science Publishers, New York, 2013) p. 113.
B.I. Goryachev, Yu.V. Kuznetsov, V.N. Orlin et al., Sov. J. Nucl. Phys. 23, 609 (1976).
V.V. Varlamov, B.S. Ishkhanov, V.N. Orlin, T.S. Polevich, M.E. Stepanov, MSU SINP Preprint-5/869 (2011).
V.V. Varlamov, V.N. Orlin, N.N. Peskov, T.S. Polevich, MSU SINP Preprint-1/879 (2012).
V.V. Varlamov, B.S. Ishkhanov, V.N. Orlin, Phys. At. Nucl. 75, 1339 (2012).
V.V. Varlamov, B.S. Ishkhanov, V.N. Orlin, A.V. Sopov, MSU SINP Preprint-8/864 (2010).
B.L. Berman, J.T. Caldwell, R.R. Harvey et al., Phys. Rev. 162, 1098 (1967).
S.C. Fultz, B.L. Berman, J.T. Caldwell et al., Phys. Rev. 186, 1255 (1969).
R.L. Bramblett, J.T. Caldwell, G.F. Auchampaugh et al., Phys. Rev. 129, 2723 (1963).
B.L. Berman, D.D. Faul, R.A. Alvarez et al., Phys. Rev. C 19, 1205 (1979).
R.R. Harvey, J.T. Caldwell, R.L. Bramblett et al., Phys. Rev. B 136, 126 (1964).
B.S. Ishkhanov, V.N. Orlin, S.Yu. Troshchiev, Phys. At. Nucl. 75, 253 (2012).
S. Agostinelli et al., Nucl. Instrum. Methods Phys. Res. Sect. A 506, 250 (2003).
H. Utsunomiya, S. Goriely, M. Kamata et al., Phys. Rev. C 84, 055805 (2011).
A. Lepretre, H. Beil, R. Bergere et al., Nucl. Phys. A 219, 39 (1974).
Yu.I. Sorokin, B.A. Yur'ev, Sov. J. Nucl. Phys. 20, 123 (1975).
Author information
Authors and Affiliations
Corresponding author
Additional information
Communicated by P. Rossi
Rights and permissions
About this article
Cite this article
Varlamov, V.V., Ishkhanov, B.S., Orlin, V.N. et al. A new approach for analysis and evaluation of partial photoneutron reaction cross sections. Eur. Phys. J. A 50, 114 (2014). https://doi.org/10.1140/epja/i2014-14114-x
Received:
Revised:
Accepted:
Published:
DOI: https://doi.org/10.1140/epja/i2014-14114-x