Abstract
The role of the nuclear and Coulomb interactions in coherent fragmentation of relativistic nuclei is discussed with the cluster-model analysis of the experimental data on the fragmentation of 7Li (P = 3A GeV/c) via the 3H + 4He channel in photoemulsion used as an example. The calculated electromagnetic contribution of ∼10% to the cross section is not in conflict with the photoemulsion data and the upper estimate of ∼40% derived from the earlier measurements of total cross sections for fragmentation of light nuclei using the counter technique. The observed irregularities in the differential cross section for 7Li fragmentation with a separated Coulomb peak at a very small momentum transfer Q are ascribed to the overlap of nuclear diffraction patterns arising from light (C, N, O) and heavy (Ag, Br) photoemulsion nuclei. The predicted diffraction cross sections in the inelastic channel drastically differ from the usual shape of nuclear diffraction in an elastic channel. For pure targets, they have a shape of oscillations with a few peaks of comparable intensity and show strong dependence on the form of the surface nuclear density and radii of the intranuclear cluster and target nucleus. The probability for two-body clustering in 7Li is estimated at about 0.7.
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References
A. G. Sitenko, Theory of Nuclear Reactions, (Energoatomizdat, Moscow, 1983) [in Russian].
S. M. Dancoff, Phys. Rev. 72, 1017 (1947).
L. N. Rozentsveig and A. G. Sitenko, Zh. Eksp. Teor. Fiz. 30, 427 (1950).
E. L. Feinberg, Zh. Eksp. Teor. Fiz. 29, 115 (1955).
R. J. Glauber, Phys. Rev. 99, 1515 (1955).
A. I. Akhiezer and A. G. Sitenko, Phys. Rev. 106, 1236 (1957).
M. V. Evlanov and A. M. Sokolov, Diffraction Interaction of Hadrons with Nuclei, Ed. by A. I. Akhiezer (Naukova dumka, Kiev, 1987) [in Russian].
M. V. Evlanov, A. M. Sokolov, and V. K. Tartakovskii, Phys. At. Nucl. 66, 253 (2003).
N. Matsuoka et al., Nucl. Phys. A 391, 357 (1982).
H. Okamura et al., Phys. Rev. C 58, 2180 (1998).
A. Winther and K. Alder, Nucl. Phys. A 319, 518 (1979).
R. Jäckle and H. Pilkuhn, Nucl. Phys. A 247, 521 (1975).
C. A. Bertulani and G. Baur, Phys. Rep. 163, 299 (1988).
B. V. Carlson, L. F. Canto, and M. S. Hussein, Phys. Rev. C 72, 041603–1 (2005).
H. H. Heckman and P. J. Lindstrom, Phys. Rev. Lett. 37, 56 (1976); G. D. Westfall et al., Phys. Rev. C. 19, 1309 (1979); D. L. Olson et al., Phys. Rev. C. 24, 1529 (1981); M. T. Mercier et al, Phys. Rev. C 33, 1655 (1986).
J. D. Jackson, Classical Electrodynamics, 2nd ed. (Wiley, New York, 1975).
M. I. Adamovich et al., J. Phys. G 30, 1479 (2004).
P. I. Zarubin, III Cherenkov Readings: New Methods in Experimental Nuclear Physics and Particle Physics, Moscow, FIAN, 6 April 2010. Collected Papers (FIAN, Moscow, 2010), p. 49 [inRussian]; The BECQUEREL Project. http://becquerel.jinr.ru.
N. G. Peresad’ko, V. N. Fetisov, Yu. A. Aleksandrov, S. G. Gerasimov, V. A. Dronov, V. G. Larionova, E. I. Tamm, and S. P. Kharlamov, JETP Lett. 88, 75 (2008).
N. G. Peresadko, Yu. A. Alexandrov, S. G. Gerasimov, V. A. Dronov, V. G. Larionova, A. V. Pisetskaya, E. I. Tamm, V. N. Fetisov, S. P. Kharlamov, and L. N. Shesterkina, Phys. At. Nucl. 73, 1942 (2010).
V. G. Neudachin and Yu. F. Smirnov, in Current Problems of Optics and Nuclear Physics: Collected Works (Kiev, 1974), p. 225 [in Russian].
V. I. Kukulin, V. G. Neudachin, and Yu. F. Smirnov, Fiz. Elem. Chastits At. Yadra 10, 1236 (1979).
M. V. Evlanov, A. M. Sokolov, and V. K. Tartakovskii, Phys. At. Nucl. 59, 647 (1996).
V. V. Davidovskii, M. V. Evlanov, and V. K. Tartakovskii, Phys. At. Nucl. 69, 230 (2006).
S. B. Dubovichenko and M. A. Zhusupov, Izv. Akad. Nauk Kaz. SSR, Ser. Fiz.-Mat., No. 4, 44 (1983).
N. A. Burkova, K. A. Zhaksybekova, and M. A. Zhusupov, Phys. Part. Nucl. 36, 427 (2005).
C. A. Bertulani and G. Baur, Nucl. Phys. A 442, 739 (1985).
A. G. Sitenko and V. K. Tartakovskii, Ukr. Fiz. Zh. 6, 12 (1961).
V. Franco and A. Tekou, Phys. Rev. C 16, 658 (1977).
L. J. Tassie and F. C. Barker, Phys. Rev. 111, 940 (1958).
V. Franco, Phys. Rev. C 6, 748 (1972).
R. C. Barrett and D. F. Jackson, Nuclear Size and Structure (Clarendon Press, Oxford, 1977).
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Original Russian Text © V.N. Fetisov, 2014, published in Pis’ma v Zhurnal Fizika Elementarnykh Chastits i Atomnogo Yadra, 2014, No. 2(186), pp. 300–311.
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Fetisov, V.N. Nuclear and Coulomb interactions in coherent fragmentation of relativistic nuclei in a photoemulsion. Phys. Part. Nuclei Lett. 11, 36–42 (2014). https://doi.org/10.1134/S1547477114020046
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DOI: https://doi.org/10.1134/S1547477114020046