6533b7d1fe1ef96bd125d63b

RESEARCH PRODUCT

Spectra and correlations of Λ andΛ¯produced in 340-GeV/cΣ−+Cand 260-GeV/cn+Cinteractions

C. R. NewsomS. MasciocchiRonald RansomeR. MichaelsS. BronsF. FallerM. HeidrichS. PaulLeonardo Paolo RossiA. FournierMarcus BeckG. WälderM. BuenerdH. W. SiebertJ. PochodzallaW. BeuschN. KellerA. TrombiniH. RudolphM. I. AdamovichL. SchmittE. VesinS. P. BaranovTh. WalcherK. MartensU. DerschVincent J SmithI. K. PotashnikovaG. RosnerU. MüllerP. GrafströmE. HubbardJ. ChauvinF. DropmannC. BüscherPh. A. MartinJürgen EngelfriedR. WerdingB. VolkemerDario BarberisK. VorwalterC. ScheelK. KönigsmannM. BossT. HallerE. WittmannC. BuschDave M NewboldE. A. ChudakovF. CharignonW. BrücknerM. GodbersenI. KonorovR.b. HurstH. NeebYu. A. AlexandrovMikhail ZavertyaevBogdan PovhCorinne BeratZ. RenM. Rey-campagnolleO. ThilmannS. G. GerassimovA. Simon

subject

PhysicsParticle systemNuclear and High Energy Physics010308 nuclear & particles physicsSigmaLambda01 natural sciencesSpectral lineBaryonNuclear physicsCoincidentPhase space0103 physical sciencesMomentum conservationNuclear Experiment010306 general physics

description

We have measured the production of strange baryons and antibaryons in 340-GeV/c Sigma /sup -/+C and 260-GeV/c n+C interactions. The single x/sub F/ distributions show the expected leading particle effect, and the single p/sub t//sup 2/ distributions show a distinct nonthermal behavior. The x/sub F/ distributions of Lambda - Lambda pairs indicate two different phase space distributions for the two coincident baryons. On the other hand two Lambda 's show identical distributions. Momentum conservation during the formation process may represent a significant source for the observed behavior.

https://doi.org/10.1103/physrevc.65.042202