Abstract
Correlations between two intermediate-mass fragments resulting from 840 MeV32S projectiles interacting with197Au were measured. The angular correlations and absolute two-fragment cross sections agree with predictions of a semi-microscopic model for direct dynamic projectile break-up. This suggests a predominantly direct mechanism for the production of intermediate-mass fragment pairs. It is argued that the intensity of such a channel which, compared to decays yieldingα particles, is much larger than observed for the sequential decay of corresponding primary excited nuclei, supports the direct-break-up interpretation. The model mechanism yields also strongly damped projectile fragments of intermediate mass.
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Gross, D.H.E.: Rep. Progr. Phys.53, 605 (1990)
Kim, Y.D., Tsang, M.B., Gelbke, C.K., Lynch, W.G., Carlin, N., Chen, Z., Fox, R., Gong, W.G., Murakami, T., Nayak, T.K., Ronningen, R.M., Xu, H.M., Zhu, F., Bauer, W., Sobotka, L.G., Stracener, D., Sarantites, D.G., Majka, Z., Abenante, V., Griffin, H.: Phys. Rev. Lett.63, 494 (1989)
Trockel, R., Hildenbrand, K.D., Lynen, U., Mueller, W.W.J., Rabe, H.J., Sann, H., Stelzer, H., Trautmann, W., Wada, R., Eckert, E., Kreutz, P., Kuehmichel, A., Pochodzalla, J., Pelte, D.: Phys. Rev. C39, 729 (1989)
Blumenfeld, Y., Colonna, N., Roussel-Chomaz, P., Delis, D.N., Hanold, K., Meng, J.C., Peaslee, G.F., Sui, Q.C., Wozniak, G.J., Moretto, L.G., Libby, B., Mignerey, A.C., Guarino, G., Santoruvo, N., Iori, I.: Phys. Rev. Lett.66, 576 (1991)
Yennello, S.J., Pollacco, E.C., Kwiatkowski, K., Volant, C., Dayras, R., Cassagnou, Y., Legrain, R., Norbeck, E., Viola, V.E., Wile, J.L., Yoder, N.R.: Phys. Rev. Lett.67, 671 (1991)
Klotz-Engmann, G., Oeschler, H., Stroth, J., Kankeleit, E., Cassagnou, Y., Conjeaud, M., Dayras, R., Harar, S., Legrain, R., Pollacco, E.C., Volant, C.: Nucl. Phys. A499, 392 (1989)
Trockel, R., Lynen, U., Pochodzalla, J., Trautmann, W., Brummund, N., Eckert, E., Glasow, R., Hildenbrand, K.D., Kampert, K.H., Mueller, W.F.J., Pelte, D., Rabe, H.J., Sann, H., Santo, R., Stelzer, H., Wada, R.: Phys. Rev. Lett.59, 2844 (1987)
Pochodzalla, J., Trautmann, W., Lynen, U.: Phys. Lett. B232, 41 (1989)
Bougault, R., Colin, J., Delaunay, F., Genoux-Lubin, A., Hajfani, A., Le Bran, C., Lecolley, J.F., Louvel, M., Steckmeyer, J.C.: Phys. Lett. B232, 291 (1989)
Möhring, K., Gross, D.H.E., Srokowski, T.: Nucl. Phys. A533, 333 (1991)
Borderie, B., Montoya, M., Rivet, M.F., Jouan, D., Cabot, C., Fuchs, H., Gardes, D., Gauvin, H., Jacquet, D., Monnet, F.: Phys. Lett. B205, 26 (1988)
Terlau, W., Buergel, M., Budzanowski, A., Fuchs, H., Homeyer, H., Roeschert, G., Uckert, J., Vogel, R.: Z. Phys. A330, 303 (1988)
Murphy, M.J., Gil, S., Harakeh, M.N., Ray, A., Seamster, A.G., Vandenbosch, R.: Phys. Rev. Lett.53, 1543 (1984)
Steckmeyer, J.C., Bizard, G., Brou, R., Eudes, P., Laville, J.L., Natowitz, J.B., Patry, J.P., Tamain, B., Thiphagne, A., Doubre, H., Peghaire, A., Peter, J., Rosato, E., Adloff, J.C., Kamili, A., Rudolf, G., Scheibling, F., Guilbault, F., Lebrun, C., Hanappe, F.: Nucl. Phys. A500, 372 (1989)
Terlau, W., Budzanowski, A., Fuchs, H., Homeyer, H., Kantor, W., Roeschert, G., Schwarz, C., Sourell, A., Zrodlowski, L.: Annu. Rep. HML— B482, 93 (1989)
Wieland, R., Stokstad, R., Gobbi, A., Shapira, D., Chua, L., Sachs, M.W., and Bromley, D.A.: Phys. Rev. C9, 1474 (1974)
Sandorfi, A.M., Calarco, J.R., Rand, R.E., Schwettmann, H.A.: Phys. Rev. Lett.45, 1615 (1980)
Möhring, K., Srokowski, T., Gross, D.H.E., Homeyer, H.: Phys. Lett. B203, 210 (1988)
Schwarz, C., Fuchs, H., Homeyer, H., Moehring, K., Schmidt, T., Siwek, A., Sourell, A., Terlau, W., and Budzanowski, A.: Phys. Lett. B279, 223 (1992); Schwarz, C.: Ph. D. Thesis, HahnMeitner-Institut Berlin 1991
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Schwarz, C., Fuchs, H., Homeyer, H. et al. Projectile break-up with two outgoing intermediate-mass fragments in 26 AMeV32S+197Au. Z. Physik A - Hadrons and Nuclei 345, 29–35 (1993). https://doi.org/10.1007/BF01290336
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DOI: https://doi.org/10.1007/BF01290336