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  1. 15661
    por Rosner, Jonathan L
    Publicado 1996
    “…The enhancement \Delta \Gamma (\Lambda_b) of the \Lambda_b decay rate due to four-fermion processes of weak scattering and Pauli interference is calculated within the quark model. An estimate of the relative bu wave function at zero separation, |\Psi(0)|^2_{bu}, is obtained in terms of the \Sigma_b^* - \Sigma_b hyperfine splitting, the B^* - B hyperfine splitting, and the B meson decay constant f_B. …”
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    Enhancement of the $\Lambda_{b}$ decay rate
  2. 15662
    por Schuler, G A, Berends, F A, van Gulik, R
    Publicado 1997
    “…Meson--photon--photon transition form factors for S-, P-, and D-wave states are calculated, the meson being treated as a non-relativistic heavy-quark--antiquark pair. The full dependence on both photon virtualities is included. …”
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    Enlace del recurso
    Meson-photon transition form factors and resonance cross-sections in $e^+ e^-$ collisions
  3. 15663
    por Esposito, Giampiero
    Publicado 1998
    “…In the second part, a number of relevant physical applications are studied: non-local boundary conditions for massless spin-1/2 fields, massless spin-3/2 potentials on manifolds with boundary, geometric theory of massive spin-3/2 potentials, local boundary conditions in quantum supergravity, quark boundary conditions, one-loop quantum cosmology, conformally covariant operators and Euclidean quantum gravity.…”
    Enlace del recurso
    Dirac operators and spectral geometry
  4. 15664
    por Bak, D, Rey, S J
    Publicado 2000
    “…We also study causal time-delay of low-energy excitation on heavy quark or meson and find an excellent agreement between anti-de Sitter supergravity and super Yang-Mills theory descriptions. …”
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    Enlace del recurso
    Holographic View of Causality and Locality via Branes in AdS/CFT Correspondence
  5. 15665
    “…When one of the $b$ hadrons in the event undergoes semileptonic decay, the charge of its parent $b$ quark at decay time is reflected by that of the lepton, its flight length is reconstructed by a topological vertexing technique, and the $b$ hadron momentum is measured using an energy flow method. …”
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    Measurement of the $B_{d}^{0} -\overline{B_{d}^{0}}$ oscillation freque
  6. 15666
    por Quast, G
    Publicado 1999
    “…Together with measurements of the top quark and W boson masses at the Tevatron pp collider at Fermilab these results provide tests of the Standard Model of the electroweak interaction with unprecedented precision and permit to place stringent limits on the mass of the Higgs boson, the last free parameter of the model. (68 refs).…”
    Enlace del recurso
    Enlace del recurso
    Experimental results on the electroweak interaction
  7. 15667
    por Le Goff, J M
    Publicado 2000
    “…Semi-inclusive data were analyzed in order to produce the first polarized quark distributions. Data obtained with a dedicated low $x$ trigger extend down to $x=6 \times 10^{-5}$ for $Q^{2} \geq$ 0.01 GeV$^{2}$. …”
    Enlace del recurso
    Enlace del recurso
    Spin physics by the SMC
  8. 15668
    por Aleppo, M
    Publicado 2000
    “…The contributions from charm quark fragmentation and from b hadron decays are disentangled. …”
    Enlace del recurso
    Enlace del recurso
    Charm decays and $D^{0}-\overline{D}^{0}$ mixing
  9. 15669
    por Antinori, Federico
    Publicado 2001
    “…QCD predicts that under such conditions a phase transition from a system composed of colourless hadrons to a Quark-Gluon Plasma (QGP) should occur. A rich ultrarelativistic heavy-ion physics programme is under way both at BNL-AGS and at CERN-SPS since 1986. …”
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    Heavy ions
  10. 15670
    por Baines, J T M
    Publicado 2001
    “…About one collision in every hundred will produce a bb quark pair. Therefore, in addition to rejecting background from non-bb events, the trigger must have the ability to identify and select those events containing the B-decay channels of specific interest. …”
    Enlace del recurso
    Enlace del recurso
    ATLAS trigger for B-physics
  11. 15671
    por Peitzmann, Thomas, Thoma, M H
    Publicado 2001
    “…Direct photons have been proposed as a promising signature for the quark-gluon plasma (QGP) formation in relativistic heavy-ion collisions. …”
    Enlace del recurso
    Enlace del recurso
    Direct Photons from Relativistic Heavy-Ion Collisions
  12. 15672
    por Antinori, Federico
    Publicado 2002
    “…QCD predicts that under such conditions a phase transition from a system composed of colourless hadrons to a Quark-Gluon Plasma (QGP) should occur. A rich ultrarelativistic heavy-ion physics programme is under way both at BNL-AGS and at CERN-SPS since 1986. …”
    Enlace del recurso
    Heavy ions
  13. 15673
    por Takai, H
    Publicado 2003
    “…Recent results from RHIC experiments suggest that a hot QCD matter, known as quark gluon plasma (QGP), may be formed in Gold+Gold collisions at a center mass energy of 200 GeV per colliding pair. …”
    Enlace del recurso
    Enlace del recurso
    Heavy Ion Physics with the ATLAS detector
  14. 15674
    por Richter-Was, Elzbieta, Sapisnki, M
    Publicado 1998
    “…This problem can be to large extent overcome if both top-quark decays are reconstructed in addition to the reconstruction of the H-->bb mass peak. …”
    Enlace del recurso
    Search for the SM and MSSM Higgs boson in the ttH, H-->bb channel
  15. 15675
    por Abdullin, Salavat, Denegri, Daniel
    Publicado 1997
    “…Within this model, the lower squark-gluino mass limit allowing the detection of the h is about 450 GeV, and observation should be pssible already with a few*10^3 pb-1, and extends up to quark - gluino masses of approx. 1.5 TeV with 10^5 pb-1. …”
    Enlace del recurso
    On the Possibility to Observe h -> b-bbar with S/B ~ 1 in SUSY (mSUGRA), and Implications for Tracker and HCAL.
  16. 15676
    por Kulagin, S A, Petti, R
    Publicado 2004
    “…We discuss a number of applications of our model which include the calculation of the deuteron structure functions, nuclear valence and sea quark distributions and nuclear structure functions for neutrino charged-current scattering.…”
    Enlace del recurso
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    Global Study of Nuclear Structure Functions
  17. 15677
    por Wang, C P, Lin, A L L
    Publicado 1974
    “…Structure functions for nu N and nu N interactions were obtained from the three-quark-boson nucleon model constructed before from the study of deep inelastic eN scattering (see abstr. …”
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    Enlace del recurso
    Deep inelastic lepton-nucleon interactions and the structure of the nucleon: structure functions, multiplicities and nu , nu total cross sections
  18. 15678
    por Rossi, G C, Veneziano, Gabriele
    Publicado 1977
    “…Some justification is given for the quark counting rule for total cross sections. Implications for the Regge-Gribov calculus in processes involving baryons are discussed. (30 refs).…”
    Enlace del recurso
    Enlace del recurso
    A possible description of baryon dynamics in dual and gauge theories
  19. 15679
    por Sandhoff, Marisa
    Publicado 2015
    “…This cross section ratio is needed to improve the W+jets normalization for top quark analyses and to test Monte Carlo generator and QCD predictions. …”
    Enlace del recurso
    Prospects of a cross section ratio measurement of W and Z events as a function of the jet multiplicity with early ATLAS data
  20. 15680
    “…The extra lightweight mechanical support structures, together with the novel pixel detectors, provide a record-breaking total radiation length of 0.3% X 0 per layer, which will make it possible to considerably extend the physical program of investigations of the quark-gluon plasma in ultra-relativistic heavy-ion collisions at the Large Hadron Collider. …”
    Enlace del recurso
    Enlace del recurso
    Extra lightweight mechanical support structures with the integrated cooling system for a new generation of vertex detectors
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