First results on radiation damage studies using n+/p/p+ diodes fabricated with multi-guard ring structures1This research was supported in part by the US Department of Energy: Contracts DE-AC02-98CH10886, DE-FG03-91ER40674, and DE-FG02-91ER40681.1
Nuclear Instruments and Methods in Physics Research Section A Accelerators Spectrometers Detectors and Associated Equipment Elsevier 423:2-3 (1999) 290-296
Measurement of the Bd 0-B̄d 0 flavor oscillation frequency and study of same side flavor tagging of B mesons in pp̄ collisions
Physical Review D - Particles, Fields, Gravitation and Cosmology 59:3 (1999) 1-41
Abstract:
Bd0-B̄d0 oscillations are observed in "self-tagged" samples of partially reconstructed B mesons decaying into a lepton and a charmed meson collected in pp̄ collisions at √s=1.8 TeV. A flavor tagging technique is employed which relies upon the correlation between the flavor of B mesons and the charge of a nearby particle. We measure the flavor oscillation frequency to be Δmd=0.471-0.068+0.078±0.034 ps-1. The tagging method is also demonstrated in exclusive samples of Bu+→J/ψK+ and Bd0→J/ψK*0(892), where similar flavor-charge correlations are observed. The tagging characteristics of the various samples are compared with each other, and with Monte Carlo simulations.Measurement of the BS 0 meson lifetime using semileptonic decays
Physical Review D - Particles, Fields, Gravitation and Cosmology 59:3 (1999) 1-14
Abstract:
The lifetime of the BS0 meson is measured using the semileptonic decay BS0→DS-l+νX. The data sample consists of about 110 pb-1 of pp̄ collisions at √s=1.8 TeV collected by the CDF detector at Fermilab. Four different DS- decay modes are reconstructed resulting in approximately 600 DS-l+ signal events. The BS0 meson lifetime is determined to be τ(BS0)=(1.36±0.09-0.05+0.06) ps, where the first and second uncertainties are statistical and systematic, respectively. The BS0 meson decay length distribution is examined for a lifetime difference ΔΓ/Γ between the two mass eigenstates of the BS0 meson. An upper limit of ΔΓ/Γ<0.83 is set at the 95% confidence level.Measurement of the Bd0-Bd0 flavor oscillation frequency and study of same side flavor tagging of B mesons in pp¯ collisions
Physical Review D American Physical Society (APS) 59:3 (1999) 032001
Measurement of the BS0 meson lifetime using semileptonic decays
Physical Review D American Physical Society (APS) 59:3 (1999) 032004