SPIN, BRANCHING RATIOS AND PRODUCTION CHARACTERISTICS OF K](1420)

被引：21

作者：

BASSOMPI.G

DRIJARD, D

GOLDSCHM.Y

GRANT, A

HENRI, VP

JONGEJAN.B

LINGLIN, D

MULLER, F

PERREAU, JM

RIDDIFOR.L

SAITOV, I

SEKULIN, R

WOLF, G

DEBAERE, W

DEBAISIE.J

DUFOUR, P

GRARD, F

HEUGHEBA.J

PAPE, L

PEETERS, P

VERBEURE, F

WINDMOLD.R

机构：

[1] CERN, Geneva

[2] Laboratoire Interuniversitaire Belge des Hautes Energies, Bruxelles

来源：

NUCLEAR PHYSICS B | 1969年 / B 13卷 / 01期

关键词：

D O I：

10.1016/0550-3213(69)90378-2

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 reactions (1) K+ p → K*(1420)p and (2) K+p → K*(1420)N*(1236) are studied at 5 GeV/c incident K+ momentum. The simultaneous fitting of the Kπ and K*(892)π decayy modes of the K* (1420) in the same production reaction makes it possible to eliminate 1- as the spin of the K*(1420). The most likely K*(1420) spin-parity assignment is 2+ although 3- cannot be excluded. The various decay branching ratios of the K*(1420) are determined. The ratio of the K*(892)π to the Kπ decay modes is found to be 0.9 ± 0.2. The peripheral production of the K*(1420) seems to be due predominantly to vector-meson exchange in reaction (1) and to pion exchange in reaction (2). © 1969.

引用

页码：189 / &

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