6533b7defe1ef96bd1275f07

RESEARCH PRODUCT

Lifetimes of charged and neutralD mesons

C.j.s. DamerellB.d. HyamsMartine BosmanM. TuralaZ. HajdukB. LückingH. PalkaV. CastilloD. P. KelseyE. NeugebauerH. DietlG. LutzS. GillC. DaumA. WylieH. J. SeebrunnerP. WeilhammerT. ZeludziewiczA. R. GillmanS. KwanH. BeckerR.s. GilmoreJ. KemmerG. De RijkFred WickensStephen WattsK. RybickiH.f. FawcettV. ChabaudH.g.j.m. TieckeT. GoochT. BöhringerL. GörlichL. W. WiggersE. HigonU. KötzD. BuchholzG. WaltermannW. MännerM. PepeJ. RichardsonJ. MalosG. LütiensP. GrasU. StierlinS. BarlagR. Klanner

subject

PhysicsParticle physicsLarge Hadron ColliderPhysics and Astronomy (miscellaneous)SiliconMesonSpectrometerchemistry.chemical_elementElementary particleNuclear physicsParticle accelerationchemistryField theory (psychology)Quantum field theoryEngineering (miscellaneous)Particle Physics - Experiment

description

We have measured the lifetimes of hadronically produced charged and neutralD mesons using silicon microstrip detectors and an active silicon target in the NA32 spectrometer at the CERN SPS. We obtainτD± = (10.9±1.51.9)·10−13s andτD(−)10 = (4.2±0.5)·10−13s based on 59 and 90 fully reconstructed decays respectively, giving a ratioτD±/τD(−)10 of 2.6 ±0.5.

https://doi.org/10.1007/bf01442064