COLOR ROPE FORMATION AND STRANGE BARYON PRODUCTION IN ULTRARELATIVISTIC HEAVY-ION COLLISIONS

被引：124

作者：

SORGE, H ^{[1
]}

BERENGUER, M ^{[1
]}

STOCKER, H ^{[1
]}

GREINER, W ^{[1
]}

机构：

[1] UNIV FRANKFURT,W-6000 FRANKFURT,GERMANY

来源：

PHYSICS LETTERS B | 1992年 / 289卷 / 1-2期

关键词：

D O I：

10.1016/0370-2693(92)91353-B

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

Enhanced strangeness production in recent experiments with S projectiles on different targets at a beam energy of 200 A GeV has been reported by several experimental groups (NA35, WA85, NA34). Here we consider that elementary triplet colour charges which are excited in the initial stage of a nucleus-nucleus collision may combine forming highly charged "ropes". The colour ropes decay by quark-antiquark pair creation screening the initial field. We implemented the generation and decay of ropes into a new version of the Monte Carlo program RQMD which is based on string excitation in ultrarelativistic nucleus-nucleus collisions. We find that all measured strange particle yields in S+S can be quantitatively understood employing the rope mechanism in addition to hadronic rescattering.

引用

页码：6 / 11

页数：6

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