PRODUCTION OF NEUTRAL VECTOR-MESONS BY BREMSSTRAHLUNG IN ELECTRON-POSITRON COLLIDING BEAMS

被引：3

作者：

GODBOLE, RM ^{[1
]}

SMITH, J ^{[1
]}

机构：

[1] CERN,CH-1211 GENEVA 23,SWITZERLAND

来源：

NUCLEAR PHYSICS B | 1979年 / 158卷 / 01期

关键词：

D O I：

10.1016/0550-3213(79)90198-6

中图分类号：

O412 [相对论、场论]; O572.2 [粒子物理学];

学科分类号：

摘要：

We study the bremsstrahlung production of the ρ{variant} meson in the reaction e+e- → e+e-ρ{variant} (→ e+e-π+π-). This reaction gives a C = -1 background which complicates the study of C = +1 two-photon processes at the new colliding-beam facilities. The cross section for the reaction rises from approximately 0.3 nb to 0.7 nb as the beam energy increases from 2 GeV to 15 GeV. From a study of the distributions of the final leptons and pions, we find a suitable choice of cuts which will reduce the event rate down to a small fraction of R. It is not possible to attribute the three-prong events seen at DELCO and PLUTO to this particular production mechanism. © 1979.

引用

页码：234 / 252

页数：19

共 33 条

[1]

Altukhov A. M., 1971, Yadernaya Fizika, V14, P391

[2] PHOTON-PHOTON COLLISIONS, A NEW AREA OF EXPERIMENTAL INVESTIGATION IN HIGH-ENERGY PHYSICS [J].