NEAR-THRESHOLD PROTON-INDUCED NEUTRAL PION-PRODUCTION FROM DEUTERIUM

被引：35

作者：

PICKAR, MA

BACHER, AD

MEYER, HO

POLLOCK, RE

EMERY, GT

机构：

[1] BOWDOIN COLL, DEPT PHYS, BRUNSWICK, ME 04011 USA

[2] INDIANA UNIV, DEPT PHYS, BLOOMINGTON, IN 47405 USA

[3] INDIANA UNIV, CYCLOTRON FACIL, BLOOMINGTON, IN 47405 USA

来源：

PHYSICAL REVIEW C | 1992年 / 46卷 / 02期

关键词：

D O I：

10.1103/PhysRevC.46.397

中图分类号：

O57 [原子核物理学、高能物理学];

学科分类号：

070202 ;

摘要：

Total cross sections and angular distributions for the differential cross section and analyzing power of the reaction H-2(p over arrow pointing right, pi-0)He-3 have been measured at four energies very near threshold (0.1 < T(pi)c.m. < 2.7 MeV). The large asymmetries observed in the angular distributions of the differential cross section indicate strong constructive interference between the amplitudes for s-wave pion emission and the amplitudes for p-wave emission. A measure of the s-wave strength at zero energy is obtained and found to be consistent with the results from pionic atoms. The new data indicate that the excitation function for this reaction differs significantly from that of p + n --> d + pi-0.

引用

页码：397 / 409

页数：13

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