6533b857fe1ef96bd12b44f8

RESEARCH PRODUCT

First measurement of the lifetime of the charmed strange baryon Ξc0

H. PalkaMartine BosmanMartine BosmanH. BeckerH. BeckerE. HigonE. HigonG. LütjensH. J. SeebrunnerV. ChabaudV. ChabaudMariusz WitekU. StierlinS. BarlagS. BarlagR. KlannerR. KlannerZ. HajdukC. DamerellC. DamerellP. WeilhammerB. LückingB. LückingH. DietlH. DietlL. W. WiggersR.s. GilmoreR.s. GilmoreC. DaumS. KwanS. KwanJ. RichardsonV. CastilloV. CastilloD. P. KelseyD. P. KelseyP. GrasP. GrasFred WickensL. GörlichA. GillmanA. GillmanJ. MalosStephen WattsT. GoochT. GoochH.g.j.m. TieckeM. PepéT. ZeludziewiczE. NeugebauerG. LutzG. WaltermannW. MännerK. RybickiT. BöhringerT. Böhringer

subject

PhysicsNuclear physicsBaryonNuclear and High Energy PhysicsCross section (physics)Particle physicsLarge Hadron ColliderIsospinHigh Energy Physics::ExperimentCharge (physics)Nuclear ExperimentParticle Physics - ExperimentSilicon microstrip detectors

description

Abstract We have observed four unambiguous decays of the charmed strange baryon Ξco in the NA32 experiment at CERN. Charge- coupled devices and silicon microstrip detectors were used to reconstruct the decay mode Ξ c o → pK − K ∗ (892) o seen in events produced by the interaction of 230 GeV/c negative poins and kaons on a copper target. We present the first measurement of the lifetime of the Ξco, together with a determination of its mass and production cross section. The resonant components of the Ξco decay are studied. We use our earlier measurement of the mass of the Ξc+ in the determination of the isospin mass splitting of the Ξc states.

yearjournalcountryeditionlanguage
1990-01-22Physics Letters B
https://doi.org/10.1016/0370-2693(90)90390-r