PRODUCTION AND DECAY PROPERTIES OF THE D(1285) MESON IN K-P INTERACTIONS AT 4.2 GEV-C

被引：24

作者：

GURTU, A

GAVILLET, P

ARMENTEROS, R

DIAZ, J

DIONISI, C

MAZZUCATO, M

MONTANET, L

TREPAGNIER, P

BLOKZIJL, R

JONGEJANS, B

METZGER, WJ

POLS, CL

SCHOTANUS, DJ

FOSTER, B

GROSSMANN, P

WELLS, J

机构：

[1] UNIV AMSTERDAM,ZEEMAN LAB,AMSTERDAM 1004,NETHERLANDS

[2] CATHOLIC UNIV NIJMEGEN,FIS LAB,NIJMEGEN,NETHERLANDS

[3] UNIV OXFORD,NUCL PHYS LAB,OXFORD,ENGLAND

来源：

NUCLEAR PHYSICS B | 1979年 / 151卷 / 02期

关键词：

D O I：

10.1016/0550-3213(79)90433-4

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 have studied the production and decay of the D(1285) meson in the reaction K-p→ ΛD at an incident K- momentum of 4.2 GeV/c. The cross section for this reaction is 11 ± 3 μb and the branching ratios D→ KKπ/D → ηππ and D → 4π/D → ηππ are found to be 0.42 ± 0.15 and 0.7 ± 0.5, respectively. The proportion of D → ηπ+π- going through the intermediate δ±π∓ states is 0.72 ± 0.15. Forward and backward exchange mechanisms are found to contribute in the ratio 3 : 2. © 1979.

引用

页码：181 / 192

页数：12

共 19 条

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