TOTAL CROSS-SECTION OF 2-PHOTON PRODUCTION OF HADRONS

被引：40

作者：

BARU, SE

BEILIN, MV

BLINOV, AE

BLINOV, VE

BONDAR, AE

BUKIN, AD

EIDELMAN, SI

EIDELMAN, YI

GROSHEV, VR

KISELEV, VA

KLIMENKO, SG

KOLACHEV, GM

MISHNEV, SI

ONUCHIN, AP

PANIN, VS

PETROV, VV

PROTOPOPOV, IY

SHAMOV, AG

SIDOROV, VA

SKOVPEN, YI

SKRINSKY, AN

TAYURSKY, VA

TELNOV, VI

TEMNYKH, AB

TIKHONOV, YA

TUMAIKIN, GM

UNDRUS, AE

VOROBIOV, AI

ZHILICH, VN

ZHOLENTS, AA

机构：

[1] Institute of Nuclear Physics, Novosibirsk

来源：

ZEITSCHRIFT FUR PHYSIK C-PARTICLES AND FIELDS | 1992年 / 53卷 / 02期

关键词：

D O I：

10.1007/BF01597557

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：

The total cross section for gamma-gamma --> hadrons was measured as a function of the invariant mass W of the system (1.25 to 4.25 GeV) at the e+e--collider VEPP-4 with the detector MD-1. For the first time the data were obtained by detecting both scattered leptons with almost zero emission angles. The mean squared four momentum transfer [q2] is -0.005 GeV2, the rms W resolution is 100-250 MeV. The data on the mean charged multiplicity [n(C)] are well described by the function [n(C)] = (1.62 +/- 0.37) + (1.83 +/- 0.45) . ln(W(GeV)). The W dependence of the total cross section is consistent with the theoretical prediction sigma(nb) = 240 + 270/W(GeV).

引用

页码：219 / 224

页数：6

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