نتایج جستجو برای: مدل sld

تعداد نتایج: 121209  

1996

The lifetimes of B + and B 0 mesons have been measured using a sample of 150,000 hadronic Z 0 decays collected by the SLD experiment at the SLC between 1993 and 1995. The analysis identiies the semileptonic decays of B mesons with high p; p t leptons and reconstructs the B meson decay length and charge by v ertexing the lepton with a partially reconstructed D meson. This method results in a sam...

1996

We present a direct measurements of the Z 0-lepton coupling asymmetries, A e , A , and A. It is based on a data sample selected from 170k Z 0 decays collected by the SLD detector. The Z's are produced by collisions of polarized e , with unpolarized e + bunches at SLC. The couplings are extracted from the measurement of the left-right forward-backward asymmetry for each lepton species. The preli...

1998
Richard Plano

This talk reviews seven SLD papers, which provide useful, unique, and precise contributions to our understanding of hadron production in the decay of Z's produced in ee collisions. The data were gathered by the SLAC Large Detector (SLD) at the SLAC Linear Collider (SLC). This accelerator/detector is able to compete with LEP in many studies, in spite of smaller statistics, due to systematic adva...

1999
Toshinori Abe

We present selected new results on strong interaction physics from the SLD experiment at the SLAC Linear Collider (SLC), symmetry tests of bb̄g vertex, the rate of secondary bb̄ production via gluon splitting, the B hadron energy spectrum and rapidity correlations between identified charged hadrons. The parity violation in Z → bb̄g decays is consistent with electroweak theory plus QCD. New tests o...

Journal: :Sci. Comput. Program. 2003
Dino Pedreschi Salvatore Ruggieri

We introduce a generalized definition of SLD-resolution admitting restrictions on atom and/or clause selectability. Instances of these restrictions include delay declarations, input-consuming unification and guarded clauses. In the context of such a generalization of SLD-resolution, we offer a theoretical framework to reason about programs and queries such that all derivations are successful. W...

2001
Hyejoo Kang

Representing the SLD collaboration We present measurements of identified charged hadron production over a wide momentum range using the SLD Cherenkov Ring Imaging Detector. In addition to studying particle production in flavor-inclusive Z 0 decays, we compare the production in decays into light, c and b flavor events. We also examine particle production in gluon jets with that in light quark je...

1999

Based on a sample of approximately 500,000 hadronic Z 0 decays accumulated between 1993 and 1998, the SLD experiment has set limits on 24 fully charged two-body and quasi two-body exclusive charmless hadronic decays of B + , B 0 , and B 0 s mesons. The precise tracking capabilities of the SLD detector provided for the efficient reduction of combinatoric backgrounds, yielding the most precise av...

Journal: :Journal of Algebra 2022

Let Cq be the non-commutative Laurent polynomial ring associated with a (n+1)×(n+1) rational quantum matrix q. sld(Cq)⊕HC1(Cq) universal central extension of Lie subalgebra sld(Cq) gld(Cq). We take algebra τ=gld(Cq)⊕HC1(Cq). Der(Cq) all derivations and consider τ˜=τ⋊Der(Cq), called full toroidal coordinated by tori. In this paper we get classification irreducible integrable modules finite dimen...

2015
M. Jones A. Cockburn R. Lupoi W. O’Neill

Near fully dense tungsten coatings onto molybdenum substrates have been demonstrated using the Supersonic Laser Deposition (SLD) process. This is a characteristic that is not readily achievable with refractory materials. The tensile strength of the tungsten deposited coatings, 724MPa, is comparable to that of wrought tungsten with no evidence of melting or substrate grain growth. The results ha...

1996
James E. Brau

During the past year, the SLD Collaboration completed construction and began operation of a new vertex detector (VXD3) with 307,000,000 CCD pixels. This upgrade will improve the SLD measurement of the polarization-enhanced forwardbackward asymmetry for band cquarks and the precision of the measurement of the b-fraction in hadronic Z decays and opens the possibility to observe ~~-m.ixing. Full s...

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