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We present an updated direct measurement of the parity-violating coupling of the Z boson to strange quarks, A_s, derived from the full SLD data sample of approximately 550,000 hadronic decays of Z bosons produced with a polarized electron…

高能物理 - 实验 · 物理学 2007-05-23 The SLD Collaboration , K. Abe

We present a preliminary direct measurement of the parity violating coupling of the Z boson to strange quarks, A_s, derived from a sample of approximately 300,000 hadronic decays of Z bosons produced with a polarized electron beam and…

高能物理 - 实验 · 物理学 2007-05-23 Hermann Staengle , representing the SLD Collaboration

We have made the first direct measurement of the parity-violating coupling of the Z^0 boson to the strange quark, A_s, using ~550,000 e^+e^- ->Z^0->hadrons events produced with a polarized electron beam and recorded by the SLD experiment.…

高能物理 - 实验 · 物理学 2012-08-27 The SLD Collaboration

We present selected results on strong interaction physics from the SLD experiment at the SLAC Linear Collider. We report on several new studies of 3- and 4-jet hadronic Z decays, in which jets are identified as quark, antiquark or gluon.…

高能物理 - 实验 · 物理学 2008-11-26 D. Muller

We present selected new results on strong interaction physics from the SLD experiment at the SLAC Linear Collider (SLC), symmetry tests of b\bar{b}g vertex, the rate of secondary b\bar{b} production via gluon splitting, the B hadron energy…

高能物理 - 实验 · 物理学 2007-05-23 Toshinori Abe , representing the SLD Collaboration

Key electroweak measurements performed by the SLD collaboration at the SLC are described and recent results given. The left-right cross-section asymmetry, $A_{LR}$, has been updated to include the 1996 data. It remains the single most…

高能物理 - 实验 · 物理学 2009-10-30 Raymond E. Frey

Exploiting the manipulation of the SLC electron-beam polarization, we present precise direct measurements of the parity violation parameters A_c and A_b in the Z boson - c quark and Z boson - b quark coupling. Quark/antiquark discrimination…

高能物理 - 实验 · 物理学 2008-11-26 SLD Collaboration , K. Abe

We have measured the differential cross sections for the production of $\pi^{+}$, $K^{+}$, $K^{0}$, $K^{*0}$, $\phi$, p, $\Lambda$ and their corresponding antiparticles in separate samples of flavor-tagged $Z^{0}\to$ light-flavor…

高能物理 - 实验 · 物理学 2008-11-26 M. Kalelkar

We present a direct measurement of the parity-violation parameter A_c. The measurement is based on 550k Z^0 decays collected by the SLD detector. The mean electron-beam polarization is |P_e| = 73 %. The tagging of c-quark events was…

高能物理 - 实验 · 物理学 2007-05-23 The SLD Collaboration , K. Abe

We have made the first direct symmetry tests in the decays of polarized Z0 bosons into fully-identified b bbar g states, collected in the SLD experiment at SLAC. We searched for evidence of parity violation at the b bbar g vertex by…

高能物理 - 实验 · 物理学 2008-11-26 Koya Abe

We present a direct measurement of the parity-violation parameter $A_c$ in the coupling of the $Z^0$ to $c$-quarks with the SLD detector. The measurement is based on a sample of 530k hadronic $Z^0$ decays, produced with a mean electron-beam…

高能物理 - 实验 · 物理学 2008-11-26 The SLD Collaboration , K. Abe

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…

高能物理 - 实验 · 物理学 2007-05-23 The SLD Collaboration , K. Abe

We present results of three SLD analyses: our final determination of the rate of gluon splitting into b-bbar, an improved measurement of the inclusive b quark fragmentation function in Z0 decays, and a preliminary first measurement of the…

高能物理 - 实验 · 物理学 2007-05-23 Gavin Nesom

Angular asymmetries have been measured in polarized Z0 decays to bbg collected by the SLD experiment at the SLC. A high purity bbg event sample is selected by utilizing B lifetime information given by the SLD CCD pixel vertex detector and…

高能物理 - 实验 · 物理学 2007-05-23 SLD Collaboration , K. Abe

We present a new preliminary combination of measurements of the parity-violation parameter Ab made by the SLD collaboration using various experimental techniques. The techniques differ in detail, but in general a sample of bb events is…

高能物理 - 实验 · 物理学 2007-05-23 The SLD Collaboration , K. Abe

We present a preliminary study of correlations in rapidity between pairs of identified charged pions, kaons and protons using the entire SLD data sample of 550,000 hadronic Z^0 decays. Short range charge correlations are observed between…

高能物理 - 实验 · 物理学 2012-08-27 The SLD Collaboration

High precision experimental new electroweak results measured at the four LEP experiments and the SLD collaboration are discussed. Heavy quark (b b-bar and c c-bar) forward-backward asymmetries measured at LEP are presented along with…

高能物理 - 实验 · 物理学 2007-05-23 Erez Etzion

Polarization of strange quarks is preserved to a high degree when they hadronize into Lambda baryons, as observed in Z decays at LEP. This opens up the possibility for ATLAS and CMS to use strange-quark polarization measurements as a…

高能物理 - 唯象学 · 物理学 2015-11-04 Yevgeny Kats

The structure of e+e- -> b bbar g events was studied using Z0 decays recorded in the SLD experiment at SLAC. Three-jet final states were selected and the CCD-based vertex detector was used to identify two of the jets as b or bbar.…

高能物理 - 实验 · 物理学 2008-11-26 Kenji Abe et al

Average charged multiplicities have been measured separately in $b$, $c$ and light quark ($u,d,s$) events from $Z^0$ decays measured in the SLD experiment. Impact parameters of charged tracks were used to select enriched samples of $b$ and…

高能物理 - 实验 · 物理学 2008-11-26 K. Abe
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