Summary
Three-body reactions X(a, b)Y(c)X in the sequential-decay assumption with the further hypothesis of a pure c transfer mechanism for the reaction X(a, b)Y are considered. In some interesting cases of the class of reactions in which the spin-zero c-nucleon group is transferred in its ground state, with a pure c-particle configuration, and in which some simple assumptions on excited levels of interest of the nucleus Y are given, the DWBA transition amplitude may be expressed in terms of the same c spectroscopic factor, for the decay Y→c+X, appearing in the theoretical form of the angular correlation between the b-particles from the X(a,b)Y reaction and the c-particles from the decay of excited states of the nucleus Y. Some applications of the formalism to α transfer reactions and to α break-up of excited states of the nucleus Y are given.
Riassunto
Si considerano reazioni a tre particelle finali X(a, b)Y(c)X nell'ipotesi di decadimento sequenziale con l'ulteriore ipotesi di trasferimento diretto della particella c, per il meccanismo della reazione X(a, b)Y. In casi interessanti di reazioni in cui il gruppo di nucleoni c, con spin nullo e nel loro stato fondamentale, viene trasferito con una configurazione pura (come quella di particella c) e si adottano ipotesi semplificanti sulla struttura dei livelli in esame del nucleo Y, l'ampiezza di transizione DWBA può essere espressa in termini dello stesso fattore spettroscopico, per il decadimento Y→c+X, che figura nell'espressione teorica che esprime la correlazione angolare tra le particelle b prodotte nella reazione X(a, b)Y e le particelle c provenienti dal decadimento di stati eccitati del nucleo Y. Si considerano alcune applicazioni del formalismo alle reazioni di trasferimento di particella α ed ai processi di emissione α da stati eccitati del nucleo Y.
Резюме
Рассматриваются трехчастичные реакции X(a, b) Y(c)X в предположении последующего распада с дополнительной гипотезой чистого механизма с-передачи для реакции X(a, b)Y. В некоторых интересных случаях для класса реакций, где группа с-нуклонов с нулевым спином передается в основное состояние с чистой с-частичной конфигурацией и в которых делаются некоторые простые предположения о возбужденных уровнях ядра Y, DWBA амплитуда перехода может быть выражена через тот же с-спектроскопический фактор, как и для распада Y→c+Y, который возникает в теоретическом выражении для угловой корреляции между b-частицами из X(a, b)Y реакции и с-частицами из распада возбужденных состояний ядра Y. Рассматриваются некоторые применения предложенного формализма к реакциям с передачей альфа-частиц и к случаю распада альфа-частиц для возбужденных состояний ядра Y.
Similar content being viewed by others
References
N. Austern:Direct Nuclear Reaction Theories (New York, N. Y., 1970).
K. S. Low andT. Tamura:Phys. Rev. C,11, 789 (1974), and references therein.
K. Bethge:Ann. Rev. Nucl. Sci.,20, 255 (1970), and references therein.
J. P. Draayer, H. E. Gove, J. P. Trentelman, N. Anantaraman andR. M. DeVries:Phys. Lett.,53 B, 250 (1974).
H. J. Mang:Ann. Rev. Nucl. Sci.,14, 1 (1964);A. A. Shihab-Eldin, L. J. Jardine andJ. O. Rasmussen:Nucl. Phys.,244 A, 435 (1975), and references therein.
R. M. DeVries, D. Shapira, W. G. Davies, G. C. Ball andJ. S. Forster:Phys. Rev. Lett.,35, 835 (1975).
A. Strazzeri:Nuovo Cimento,34 A, 229 (1976).
I. Rotter:Fortschr. Phys.,16, 195 (1968).
Yu. F. Smirnov:Nucl. Phys.,39, 346 (1962);V. V. Balashov, A. N. Boyarkina andI. Rotter:Nucl. Phys.,59, 417 (1964).
I. Rotter:Nucl. Phys.,122 A, 567 (1968).
R. Bock andH. Yoshida:Nucl. Phys.,189 A, 177 (1972).
A. E. Litherland andA. J. Ferguson:Can. Journ. Phys.,39, 788 (1961).
P. Swan:Rev. Mod. Phys.,37, 339 (1965).
A. M. Lane andR. G. Thomas:Rev. Mod. Phys.,30, 257 (1958);C. Mahaux andH. A. Weidenmüller:Shell-Model Approach to Nuclear Reactions (Amsterdam, 1969).
M. Ichimura, A. Arima, E. C. Halbert andT. Terasawa:Nucl. Phys.,204 A, 225 (1973).
V. V. Balashov, V. G. Neudachin, Yu. F. Smirnov andN. P. Yudin:Žurn. Ėksp. Teor. Fiz.,37, 1387 (1959);Yu. F. Smirnov andD. Chlebowska:Nucl. Phys.,26, 306 (1961).
A. Messiah:Mécanique quantique (Paris, 1965).
N. Austern, R. M. Drisko, E. C. Halbert andG. R. Satchler:Phys. Rev.,133, 33 (1964).
I. Rotter:Nucl. Phys.,135 A, 378 (1969).
L. Ray, W. R. Coker andT. Udagawa:Phys. Lett.,56 B, 318 (1975).
A. A. Oglobin:International Conference on Nuclear Reactions Induced by Heavy Ions (Heidelberg, 1969), p. 231;R. Middleton:International Conference on Nuclear Reactions Induced by Heavy Ions (Heidelberg, 1969), p. 263;G. Bassani, A. Calamand, G. Pappalardo, N. Saunier andB. M. Traoré:Compte Rendu d'Activité du Departement de Physique Nucléaire, 1969–70, Note CEA-N-1390, p. 27.
K. D. Hildenbrand, H. H. Gutbrod, W. von Oertzen andR. Bock:Nucl. Phys.,157 A, 297 (1970).
U. C. Schlotthauer-Voos, R. Bock, H. G. Bohlen, H. H. Gutbrod andW. von Oertzen:Nucl. Phys.,186 A, 225 (1972).
J. B. French:Nuclear Spectroscopy, edited byF. Ajzenberg-Selove, part B (New York, N. Y., 1960), p. 890.
W. F. Steele, P. A. Smith, J. E. Finck andG. M. Crawley:Nucl. Phys.,266 A, 424 (1976).
D. J. Pisano:Phys. Rev. C,14, 468 (1976);D. J. Pisano andP. D. Parker:Phys. Rev. C,14, 475 (1976);M. E. Cobern, D. J. Pisano andP. D. Parker:Phys. Rev. C,14, 491 (1976).
G. J. Wozniak, H. L. Harney, K. H. Wilcox andJ. Cerny:Phys. Rev. Lett.,28, 1278 (1972);H. Ho, W. Dünnweber, D. Dehnhard, K. Mudersbach, O. Salagean andJ. P. Wurm:Proceedings of the International Conference on Reactions between Complex Nuclei (Nashville, Tenn., 1974), p. 45;J. Stettmeier, K. A. Eberhard, E. Mathiak, H. H. Rossner, A. Weidinger andL. N. Wüstefeld:Proceedings of the International Conference on Reactions between Complex Nuclei (Nashville, Tenn., 1974), p. 94;E. Mathiak, J. G. Cramer, K. A. Eberhard, J. Stettmeier andL. N. Wüstefeld:Proceedings of the International Conference on Reactions between Complex Nuclei (Nashville, Tenn., 1974), p. 95.
J. V. Maher, K. A. Erb, G. H. Wedberg, J. L. Ricci andR. W. Miller:Phys. Rev. Lett.,29, 291 (1972);C. Olmer, K. A. Erb, D. L. Hanson, M. W. Sachs, R. G. Stockstad andD. A. Bromley:Proceedings of the International Conference on Reactions between Complex Nuclei (Nashville, Tenn., 1974), p. 104.
V. Z. Gol'dberg, V. P. Rudakov andV. A. Timofeev:Yad. Fiz.,19, 503 (1974) (English translation:Sov. Journ. Nucl. Phys.,19, 253 (1974)).
T. Fliessbach:Zeits. Phys.,278 A, 353 (1976).
K. P. Artemov, V. Z. Gol'dberg, I. P. Petrov, V. P. Rudakov, I. N. Serikov andV. A. Timofeev:Phys. Lett.,37 B, 61 (1971);M. Avril, M. Lepareux, N. Saunier, A. Foti, G. Pappalardo andA. Strazzeri:J. Physique Lett.,36, 229 (1975).
K. P. Artemov, V. Z. Gol'dberg, I. P. Petrov, I. N. Serikov, V. P. Rudakov, V. A. Timofeev, R. Wolski andJ. Szmider:Yad. Fiz.,22, 242 (1975) (English translation:Sov. Journ. Nucl. Phys.,22, 125 (1975)).
A. Gobbi, P. R. Maurenzig, L. Chua, R. Hadsell, P. D. Parker, M. W. Sachs, D. Shapira, R. Stokstad, R. Wieland andD. A. Bromley:Phys. Lett.,26, 398 (1971);L. K. Fifield, R. W. Zurmühle, D. P. Balamuth andJ. W. Noé:Phys. Rev. C,8, 2208 (1973);R. Wieland, R. Stokstad, A. Gobbi, D. Shapira, L. Chua, M. W. Sachs andD. A. Bromley:Phys. Rev. C,9, 1474 (1974).
A. Arima:Proceedings of the International Workshop on Gross Properties of Nuclei and Nuclear Excitations (Darmstadt, 1975), p. 68.
E. M. Burbidge, G. R. Burbidge, W. A. Fowler andF. Hoyle:Rev. Mod. Phys.,29, 547 (1957);A. G. W. Cameron:Ann. Rev. Nucl. Sci.,8, 229 (1958);S. E. Koonin, T. A. Tombrello andG. Fox:Nucl. Phys.,220 A, 221 (1974).
T. K. Lim:Phys. Lett.,56 B, 321 (1975), and references therein.
T. A. Tombrello andP. D. Parker:Phys. Rev.,131, 2582 (1963), and references therein.
P. T. Debevec, H. T. Fortune, R. E. Segel andJ. F. Tonn:Phys. Rev. C,9, 2451 (1974).
D. Robson:Comm. Nucl. Part. Phys.,5, 16 (1972).
L. A. Charlton andD. Robson:Phys. Rev. Lett.,32, 946 (1974).
H. H. Gutbrod, H. Yoshida andR. Bock:International Conference on Nuclear Reactions Induced by Heavy Ions (Heidelberg, 1969), p. 331.
J. R. Erskine, W. Henning, D. G. Kovar, L. R. Greenwood andR. M. DeVries:Phys. Rev. Lett.,34, 680 (1975).
J. G. Cramer, K. A. Eberhard, N. R. Fletcher, E. Mathiak, H. H. Rossner andA. Weidinger:Nucl. Instr. Meth.,111, 425 (1973).
D. Robson:Nucl. Phys.,204A, 523 (1973).
R. Potenza: private communication.
K. P. Artemov, V. Z. Gol'dberg, I. P. Petrov, V. P. Rudakov, I. N. Serikov andV. A. Timofeev:Yad. Fiz.,20, 688 (1974) (English translation:Sov. Journ. Nucl. Phys.,20, 368 (1975));E. F. da Silveira:Proceedings of the XIV Winter Meeting on Nuclear Physics (Bormio, 1976);P. Roussel, M. Bernas, B. Fabbro, F. Naulin, A. D. Panagiotou, E. Plagnol, F. Pougheon andG. Rotbard:European Conference on Nuclear Physics with Heavy Ions (Caen, 1976), p. 38.
Author information
Authors and Affiliations
Additional information
This work has been financially supported partially by CRRN, CSFN/SM and INFN.
Переведено редакцией.
An erratum to this article is available at http://dx.doi.org/10.1007/BF02730202.
Rights and permissions
About this article
Cite this article
Strazzeri, A. Spectroscopic information from angular correlations and transfer reactions. Nuov Cim A 39, 193–214 (1977). https://doi.org/10.1007/BF02769731
Received:
Published:
Issue Date:
DOI: https://doi.org/10.1007/BF02769731