Open AccessH{sub 0} candidates from the decays {Sigma}{sup {minus}}p and {Lambda}p{pi}{sup {minus}}, produced in heavy ion collisions Si beam on Pb target
Author(s) -
R. S. Longacre
Publication year - 1997
Language(s) - English
Resource type - Reports
DOI - 10.2172/555579
Subject(s) - physics , lambda , sigma , heavy ion , ion , hadron , branching fraction , nuclear physics , atomic physics , particle physics , quantum mechanics , optics
There is considerable interest in searching for strange quark matter (strangelets). The lowest strangelet state is thought to be a six quark dibaryon singlet spin zero state called the H{sub 0} predicted by R.L. Jaffe. The authors present H{sub 0} candidate events, where H{sub 0}(2210) is observed through the weak decay modes {Sigma}{sup {minus}}p and {Lambda}p{pi}{sup {minus}}, produced in central heavy ion collisions with 14.6 x A Gev/c Si beam on Pb target. The lifetime is consistent with {approximately}4 cm cr in both channels approximately 1/3 of an H{sub 0}(2210) which decays into {Sigma}{sup {minus}} p is produced per central Si Pb collision. The branching ratio between {Lambda}p{pi}{sup {minus}} and {Sigma}{sup {minus}}p is around 11% {+-} 3%