PRODUCTION OF J = 2 RESONANCES IN 2-PHOTON COLLISIONS

被引：10

作者：

ANDERSON, JD ^{[1
]}

AUSTERN, MH ^{[1
]}

CAHN, RN ^{[1
]}

机构：

[1] UNIV CALIF BERKELEY LAWRENCE BERKELEY LAB,BERKELEY,CA 94720

来源：

PHYSICAL REVIEW D | 1991年 / 43卷 / 07期

关键词：

D O I：

10.1103/PhysRevD.43.2094

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

Two experiments have observed an enhancement in the pi-pi-pi channel in gamma-gamma collisions, which they identify as the pi-2(1670), a J(P) = 2- state. Preliminary results in the eta-pi-pi channel show a resonance about 200 MeV higher. A nonrelativistic-quark-model calculation predicts gamma-gamma widths for these d-wave states two to three orders of magnitude smaller than are observed, although the same model successfully describes the p-wave J(p) = 2+ states. Some angular correlations that might confirm the J(P) = 2- assignment are discussed.

引用

页码：2094 / 2103

页数：10

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