Summary
π+ inelastic-scattering cross-sections on3He have been measured at 100 and 200MeV. They have been analysed together with our previously published data at 145MeV. We evidence the following features of the reaction mechanisms:a) the π+ 3He→π+ pd channel is dominated by the (π+ p) elastic-scattering reaction;b) the four-particle π0ppp and π+ ppn channels have a large contribution;c) the absorption cross-section values are about 5/6 of the quasi-deuteron absorption values. A comparison of our data with those obtained for other nuclei shows a rapid decrease of the absorption cross-section values for the very light nuclei. The dependence of the absorption cross-section onA is aboutA 2/3 forA⩾7 and aboutA 2 forA⩽4. The difference between the total and the absorption cross-section values has a smooth behaviour of the typeA 2/3 for all nuclei.
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T. Angelescu, I. Lazanu, A. Mihul, L. Pascu, I. V. Falomkin, G. B. Pontecorvo, Yu. A. Shcherbakov, R. Ionica andG. Piragino:Nuovo Cimento, A,89, 162 (1985).
Yu. A. Shcherbakov, T. Angelescu, I. V. Falomkin, M. M. Kulyukin, V. I. Lyashenko, R. Mach, A. Mihul, N. M. Kao, F. Nichitiu, G. B. Pontecorvo, V. K. Sarycheva, M. G. Sapozhnikov, M. Semerdjieva, T. M. Troshev, N. I. Trosheva, F. Balestra, L. Busso, R. Garfagnini andG. Piragino:Nuovo Cimento A,31, 262 (1976).
I. V. Falomkin, M. M. Kulyukin, V. I. Lyashenko, F. G. Nichitiu, G. B. Pontecorvo, Yu. A. Shcherbakov andG. Piragino:Lett. Nuovo Cimento,3, 461 (1972).
T. Angelescu, A. Mihul, L. Pascu, L. Lazanu, R. Ionica, R. Garfagnini, G. Piragino, V. L. Lyashenko, I. V. Falomkin andYu. A. Shcherbakov:Rev. Roum. Phys.,T31, 125 (1986).
C. Richard-Serre, W. Hirt, D. F. Measday, E. G. Michaelis, M. J. M. Saltmarch andP. Skarek:Nucl. Phys. B,20, 413 (1970), and literature therein quoted.
F. Balestra, M. P. Bussa, L. Busso, R. Garfagnini, G. Piragino, C. Guaraldo, A. Maggiora, R. Scrimaglio, I. V. Falomkin, G. B. Pontecorvo andYu. A. Shcherbakov:Nucl. Phys. A,340, 372 (1980).
F. Binon, P. Duteil, M. Guanere, L. Hugon, J. Jansen, J. P. Lagnaux, H. Palevsky, J. P. Peigneux, M. Spighel andJ. P. Stroot:Nucl. Phys. B,298, 499 (1978).
A. Ashery, I. Navon, G. Azuelos, H. K. Walter, H. J. Pfeiffer andF. W. Schelputz:Phys. Rev. C,23, 2173 (1981).
F. Binon, P. Duteil, J. B. Garbon, J. Gorres, L. Hugon, J. P. Peigneux, C. Schmit, M. Spighel andJ. P. Stroot:Nucl. Phys. B,17, 168 (1970).
J. Eisenberg andD. S. Koltun:Theory of Meson Interactions with Nuclei (J. Wiley and Sons, 1980).
V. S. Barashenkov, A. Polanski andA. N. Sosnin: Dubna P2-90-159 (1990).
H. S. Chung andW. D. Myers: LBL 26284/(1989);C. W. De Jager, H. De Vries andC. De Vries:At. Data Nucl. Data Tables,14, 479 (1974).
L. C. Smith, R. C. Minehart, D. Ashery, E. Piasetski, M. Moinester, I. Navon, D. F. Geesaman, J. P. Schiffer, G. Stephens, B. Zeidman, S. Levinson, S. Mukhopadhyay, R. E. Segel, B. Anderson, R. Madey, J. Watson andR. P. Whitney:Phys. Rev. C,40, 1347 (1989);H. Hahn: M.SC. Thesis, Tel Aviv University, 1987.
P. Weber, G. Backenstoss, M. Izycki, R. J. Powers, P. Salvisberg, M. Steinacher, H. J. Meyer, S. Cierjacks, A. Hoffart, H. Ullirch, M. Furic, T. Petkovic andN. Sinicevic: PSI, PR-89-03 (1989).
G. Backenstoss, M. Izycki, P. Salvisberg, M. Steinacher, P. Weber, H. J. Weyer, S. Cierjacks, S. Ljuhgfelt, H. Ullrich, M. Furic andT. Petkovic:Phys. Rev. Lett.,55, 2782 (1985);P. Weber: Ph.D. Thesis, Basel (1986);P. Weber, G. Backenstoss, M. Izycki, R. J. Powers, P. Salvisberg, M. Steinacher, H. J. Weyer, S. Cierjacks, A. Hoffart, B. Rzehorz, H. Hullrich, D. Bosnar, M. Furic, T. Petkovic andN. Simicevic:Nucl. Phys. A,534, 541 (1991).
K. A. Aniol, A. Altmann, R. R. Johnson, H. W. Roser, R. Tacik, U. Wienands, D. Ashery, J. Alster, M. A. Moinester, E. Piazetzky, D. R. Gill andJ. Vincent:Phys. Rev. C,33, 1714 (1986).
T. Angelescu, A. Mihul, L. Pascu, T. Preda, I. Lazanu, R. Ionica, R. Garfagnini, G. Piragino, I. V. Falomkin, V. I. Lyashenko andYu. A. Shcherbakov:Nuovo Cimento A,103, 93 (1990).
T. S. H. Lee andK. Ohta:Phys. Rev. C,25, 3043 (1982);K. Ohta, M. Thies andT. S. H. Lee:Ann. Phys.,163, 420 (1985).
K. Nakai, T. Kobayashi, T. Numao, T. A. Shibata, J. Chiba andK. Matsuani:Phys. Rev. Lett.,44, 1446 (1980).
T. J. Roberts, H. R. Gustafson, L. W. Jones, M. J. Longo andM. R. Walley:Nucl. Phys. B,159, 56 (1979).
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Minul, A., Angelescu, T., Ionica, R. et al. Inelastic π+ 3He interaction at 100, 120 and 145MeV. Nuov Cim A 105, 1637–1647 (1992). https://doi.org/10.1007/BF02731077
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DOI: https://doi.org/10.1007/BF02731077