PHOTOPRODUCTION OF PIO WITH PLANE POLARIZED 3-GEV PHOTONS

被引：27

作者：

BELLENGER, D

BORDELON, R

COHEN, K

DEUTSCH, SB

LOBAR, W

LUCKEY, D

OSBORNE, LS

POTHIER, E

SCHWITTERS, R

机构：

[1] Department of Physics and Laboratory for Nuclear Science, Massachusetts Institute of Technology, Cambridge

来源：

PHYSICAL REVIEW LETTERS | 1969年 / 23卷 / 10期

关键词：

D O I：

10.1103/PhysRevLett.23.540

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The cross section for photoproduction of π0 mesons was measured at a photon energy of 3 GeV and squared four-momentum transfer (t) of -0.1 to -1.2 (GeV/c)2 using plane-polarized photons. The asymmetry was found to be consistent with +1.0 for t values above -0.4 and below -1.1. For -0.4<~t<~-1.0 there is a dip in the asymmetry and at t=-0.6 it drops to 0.55 ± 0.15. This result precludes a simple Regge model with ω0 and B; a theoretical description requires Regge cuts or an ω′ exchange. © 1969 The American Physical Society.

引用

页码：540 / +

页数：1

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