Near-threshold (p
作者： T. G. Throwe , S. E. Vigdor , W. W. Jacobs , M. C. Green , C. W. Glover
关键词:
摘要: Cross section and analyzing power angular distribution measurements are reported for the /sup 48/Ca(p-arrow-right,..pi../sup -/) 49/Ti reaction at two bombarding energies (T/sub p/ = 166 205 MeV) 42/Ca(p-arrow-right,..pi../sup 43/Ti T/sub MeV. Also presented comparison single-angle spectra (p,..pi../sup on other f/sub 7/2/-shell targets 48/Ti(p,..pi../sup +/) 49/Ti. The (p, ..pi../sup show a strong selectivity population of high-spin ((15/2)/sup -/ (19/2)/sup 2p-1h ((..pi..f/sub 7/2/)/sup 2/(..nu..f/sub -1/) states, which not prominent in spectrum. Supporting evidence identification comes from comparisons with simple model calculations results studies. Characteristic features data states continuum portions discussed context two-nucleon (NN..-->..NN..pi..) pion production mechanism. All main systematic observed least qualitatively consistent expectations such
osti.gov
harvard.edu
sci-hub.se 
arxiv.org 参考文章(34)
D F Measday, G A Miller, Hopes and Realities for the (p,π) Reaction Annual Review of Nuclear and Particle Science. ,vol. 29, pp. 121- 160 ,(1979) , 10.1146/ANNUREV.NS.29.120179.001005
Robert P. Redwine, PION-NUCLEUS INTERACTIONS* Nuclear Physics. ,vol. 434, pp. 239- 260 ,(1985) , 10.1016/0375-9474(85)90502-0
R. D. McKeown, S. J. Sanders, J. P. Schiffer, H. E. Jackson, M. Paul, J. R. Specht, E. J. Stephenson, R. P. Redwine, R. E. Segel, How Many Nucleons are Involved in Pion Absorption in Nuclei? Physical Review Letters. ,vol. 44, pp. 1033- 1036 ,(1980) , 10.1103/PHYSREVLETT.44.1033
V. Girija, D. S. Koltun, Nuclear (π,p) Reaction is Consistent with a 2N Absorption Process Physical Review Letters. ,vol. 52, pp. 1397- 1400 ,(1984) , 10.1103/PHYSREVLETT.52.1397
M. J. Iqbal, G. E. Walker, Intermediate isobar effects in a two-nucleon mechanism for (p,π) Physical Review C. ,vol. 32, pp. 556- 571 ,(1985) , 10.1103/PHYSREVC.32.556
G.E. Brown, H. Toki, W. Weise, A. Wirzba, Double-Δ (1232) formation in pion-nucleus absorption Physics Letters B. ,vol. 118, pp. 39- 44 ,(1982) , 10.1016/0370-2693(82)90597-4
W. W. Jacobs, T. G. Throwe, S. E. Vigdor, M. C. Green, J. R. Hall, H. O. Meyer, W. K. Pitts, M. Dillig, Evidence for Two-Nucleon Processes inA(ppol, π−)A+1 Physical Review Letters. ,vol. 49, pp. 855- 859 ,(1982) , 10.1103/PHYSREVLETT.49.855
S. E. Vigdor, T. G. Throwe, M. C. Green, W. W. Jacobs, R. D. Bent, J. J. Kehayias, W. K. Pitts, T. E. Ward, Dominance of High-Spin Two-Particle, One-Hole Transitions in (p, π−) Reactions Physical Review Letters. ,vol. 49, pp. 1314- 1317 ,(1982) , 10.1103/PHYSREVLETT.49.1314
S.E. Vigdor, T.G. Throwe, M.C. Green, W.W. Jacobs, R.D. Bent, J.J. Kehayias, W.K. Pitts, T.E. Ward, The dominance of high-spin two-particle one-hole transitions in (p,π−) reactions Nuclear Physics. ,vol. 396, pp. 61- 70 ,(1983) , 10.1016/0375-9474(83)90009-X
M. C. Green, J. Brown, W. W. Jacobs, E. Korkmas, T. G. Throwe, S. E. Vigdor, T. E. Ward, P. L. Jolivette, B. A. Brown, High-spin-state spectroscopy with the reaction /sup 88/Sr(p/sub pol/,. pi. /sup -/)/sup 89/Zr Physical Review Letters. ,vol. 53, pp. 1893- 1896 ,(1984) , 10.1103/PHYSREVLETT.53.1893