6533b7d6fe1ef96bd1266ee4

RESEARCH PRODUCT

Meson production inp+U, O+U and S+U interactions at 200 GeV/nucleon

F. StaleyE. DescroixA. BussiereC. RaccaP. LiaudPhilippe BussonR.a. SalmeronS. RamosM.c. AbreuA. BalditS. SilvaA. GuichardJ. CastorA. BaldisseriCarlos LourencoL. KlubergJ. P. GuillaudR. FerreiraD. JouanJ.m. GagoO. DrapierC. BaglinPh. GorodetzkyR. KossakowskiFrancois VazeilleR. CasesR. HaroutunianG. LandaudClaude CharlotP. BordaloC. BarriereM. BedjidianJ. FargeixA. DevauxJ.-r. PizziB. ChaurandC. GerschelLuis PeraltaDidier ContardoP. ForceT. ChambonJ.-y. GrossiordX. FelgeyrollesJoao VarelaX. TarragoA. RomanaP. SondereggerL. FredjS. PapillonB. Grosdidier

subject

PhysicsNuclear reactionParticle physicsPhysics and Astronomy (miscellaneous)ProtonMesonNuclear TheoryHadronElementary particleNuclear physicsPionNuclear ExperimentNucleonEngineering (miscellaneous)Boson

description

Meson production in proton, oxygen and sulphur interactions with uranium targets at 200 GeV/nucleon is studied. We measure the inclusive meson cross-section d σ/dPT2 and its evolution fromp+U to S+U. The cross-section fitted with an exponential gives an inverse slopePT0 of the order of 210 MeV/c. As a function of the neutral transverse energy,PT0 values show a slight rise followed by a plateau. The normalized difference (σ+−σ−)/σ− between positive and negative meson cross-sections is found to increase withET.

https://doi.org/10.1007/bf01565093