6533b873fe1ef96bd12d5f84

RESEARCH PRODUCT

First measurements of Λ and hyperons in elementary electroproduction at MAMI

Ch. RappoldHarald MerkelD. NakajimaSimon ŠIrcaO. BorodinaR. BöhmM. PotokarB. GöküzümS. BianchinU. MüllerM. O. DistlerJan C. BernauerShigeo MinamiPatrick AchenbachB. S. SchlimmeDamir BosnarJ. PochodzallaEunji KimV. BozkurtB. ÖZel-tashenovM. WeinrieferH. FonvieilleAchim DenigK. GrießingerAnselm EsserL. DebenjakF. E. MaasIvica FriščićL. NungesserMihael MakekS. Sánchez MajosC. Ayerbe GayosoT.r. Saito

subject

PhysicsNuclear and High Energy PhysicsParticle physicsSpectrometerField (physics)010308 nuclear & particles physicsNuclear TheoryHyperonStrangeness01 natural sciencesNuclear physicsMomentum0103 physical sciencesMass spectrumHigh Energy Physics::ExperimentNuclear Experiment010306 general physicsSpectroscopy

description

Abstract Since 2008 the magnetic spectrometer Kaos , dedicated to the detection of charged kaons, is operating at the 1.5 GeV electron beam of MAMI at the Institut fur Kernphysik in Mainz, Germany. The strangeness programme performed in 2008–9 is addressing some important issues in the field of elementary kaon photoelectro-production reactions. The identification of Λ and Σ 0 hyperons in the missing mass spectra from kaon production off a liquid hydrogen target demonstrates the capability of the extended facility to perform strangeness electro-production spectroscopy at low momentum transfers Q 2 0.5 ( GeV / c ) 2 . Systematic uncertainties in the cross-section extraction from the data are discussed.

https://doi.org/10.1016/j.nuclphysa.2010.01.207