We present a direct measurement of the parity-violating parameter Ab by analyzing the left-right forward-backward asymmetry of b quarks in e+ e– + 2° + b;. The SLD experiment observes hadronic decays of 2° bosons produced at resonance in collisions of longitudinally polarized. . elect rons and unpolarized positrons at the SLC. Heavy flavor decays of the 2° are identified by taking advantage of ...

The lifetimes of B + and B 0 mesons have been measured using a sample of 400,000 hadronic Z 0 decays collected by the SLD experiment at the SLC between 1993 and 1998. This inclusive topological measurement includes 250,000 hadronic Z 0 decays collected since 1996 with the SLD upgrade vertex detector. A high statistics sample of 30028 19636 charged neutral vertices with good charge purity is obt...

In 1992 the SLD experiment at SLAC collected over 11,000 hadronic decay events of Z0 bosons produced in collisions of polarised electrons with unpolarised positrons delivered by the SLC. Preliminary experimental results are presented on tests of the value of the gluon spin involving events containing three hadronic jets measured in the final state. A leading order QCD prediction is found to be ...

The lifetimes of B + and B 0 mesons have been measured using the entire sample of 550,000 hadronic Z 0 decays collected by the SLD experiment at the SLC between 1993 and 1998. In this paper, we describe the inclusive analysis of the 350,000 hadronic Z 0 decays collected in 1997-98 with the upgraded SLD vertex detector. In this data period, a high statistics sample of 30903 (20731) charged (neut...

Submitted for the DAMOP13 Meeting of The American Physical Society Mechanism of delayed double ionization in a strong laser field TURGAY UZER, Georgia Institute of Technology, FRANCOIS MAUGER, Universite de Sherbrooke, ADAM KAMOR, Georgia Institute of Technology, CRISTEL CHANDRE, Centre de Physique Theorique — Nonsequential Double Ionization (NSDI), for linearly polarized strong laser fields, h...

We present three QCD studies performed by the SLD experiment at SLAC, utilizing the highly polarized SLC electron beam. We examined particle production differences in light quark and antiquark hemispheres, and observed more high momentum baryons and A’-% than antibaryons and Kt ’s in quark hemispheres, consistent with the “leading particle” hypothesis. We performed a search for jet handedness i...

*Corresponding author iNTroDuCTioN It was originally estimated that there were between 35,000 and 120,000 encoding genes within the DNA; however, studies revised this number down to 20,000–25,000 and it was suggested that a high level of control exists to regulate gene expression in this lower than expected number of genes1. Non-coding RNAs, in particular microRNAs (miRNAs), have been proposed ...

We present a summary of the results of several electroweak measurements performed by the SLD experiment at the Stanford Linear Collider (SLC). Most of these results are preliminary and are based, unless otherwise indicated, on the full 1993-8 data set of approximately 550,000 hadronic decays of Z 0 bosons produced with an average electron beam polarization of 73%.

We set a preliminary 95% C.L. exclusion on the oscillation frequency of B 0 s B 0 s mixing using a sample of 250,000 hadronic Z 0 decays collected by the SLD experiment at the SLC between January 1996 and March 1998. The analyses determine the b-hadron avor at production by exploiting the large forward-backward asymmetry of polarized Z 0 ! bb decays as well as information from the hemisphere op...

Using hadronic 2° decays recorded by the SLD experiment at SLAC, we have studied the production of strange particles as a function of momentum. A high-purity sample of K ~ was tagged using Cherenkov Ring Imaging Detector(CRID). The #, A and K. were reconstructed in the K+ K-, pm and ~+ T – modes respectively, and CRID identification of K+ and p was used to obtain pure samples of@ and A. We have...