6533b82dfe1ef96bd1291c50
RESEARCH PRODUCT
A study of λ+c decays into pK−π+, pK−π+π0and pK−π+π0π0
Stephen WattsZ. HajdukH. J. SeebrunnerH.g. TieckeR.s. GilmoreMartine BosmanRobert KlannerP. GrasP. WeilhammerFred WickensE. HigonH. PalkaA.r. GillmanG. LutzG. LütjensV. ChabaudC.j.s. DamerellU. StierlinV. CastilloS. BarlagT. BöhringerG. WaltermannJ. MalosE. NeugebauerL. W. WiggersT. GoochD.p. KelseyW. MännerM. PepéH. BeckerB. LückingMariusz WitekS. KwanJ. RichardsonH. DietlEkK. RybickiC. Daumsubject
Nuclear physicsPhysicsNuclear and High Energy PhysicsCrystallographySilicon vertex detectordescription
Abstract In the CERN NA32 experiment a high-resolution silicon vertex detector and a purely topological approach were used to collect a clean sample of λ + c decays into pK − π + with or without additional neutral particles. We study the subresonant structure of the λ c + peak obtaining BR (λ c + → p K ∗0 (892)) = 0.35 −0.07 +0.06 ±0.03 with respect to the total λ c + → pK − π + decay. We also determine branching ratios for some channels with neutral decay products, namely BR( λ c + → pK − π + π 0 ) = 0.73±0.12±0.05 and BR( λ c + → pK − π + π 0 π 0 = 0.16±0.07±0.03, again with respect to the total λ c + → pK − π + decay.
year | journal | country | edition | language |
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1993-08-01 | Physics Letters B |