Evidence for Δ- components in nuclei

被引:25
|
作者
Morris, CL
Zumbro, JD
McGill, JA
Seestrom, SJ
Whitton, RM
Reidel, CM
Williams, AL
Braunstein, MR
Kohler, MD
Kriss, BJ
Hoibraten, S
Ouyang, J
Peterson, RJ
Wise, JE
机构
[1] Univ Calif Los Alamos Natl Lab, Los Alamos, NM 87545 USA
[2] MIT, Bates Linear Accelerator Ctr, Middleton, MA 01949 USA
[3] Univ Minnesota, Minneapolis, MN 55455 USA
[4] Univ Texas, Austin, TX 78712 USA
[5] Univ Colorado, Boulder, CO 80309 USA
关键词
D O I
10.1016/S0370-2693(97)01453-6
中图分类号
P1 [天文学];
学科分类号
0704 ;
摘要
Ratios of double-differential cross sections for incident 500-MeV pions are presented for (pi(+),pi(+)p) and (pi(+),pi(-)p) reactions on C-12,C-13,Zr-90, and Pb-208. A comparison with intra-nuclear cascade-model calculations suggest that the outgoing pion spectra show a feature consistent with quasi-free scattering from the Delta(-) component of the nuclear ground state wave function. (C) 1998 Elsevier Science B.V.
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页码:25 / 29
页数:5
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