Now showing items 2126-2145 of 5032

    • J/ψ and ψ (2S) production in pp collisions at √s=7Tev 

      CMS Collaboration; Adair, A.; Boulahouache, C.; Cuplov, V.; Ecklund, K.M.; (2012)
      A measurement of the J/ψ and ψ(2S) production cross sections in pp collisions at √s=7TeV with the CMS experiment at the LHC is presented. The data sample corresponds to an integrated luminosity of 37 pb−1. Using a fit to the invariant mass and decay length distributions, production cross sections have been measured separately for prompt and non-prompt ...
    • J/ψ polarization in p+p collisions at √s=200 GeV in STAR 

      STAR Collaboration; Butterworth, J.; Eppley, G.; Geurts, F.; Llope, W.J.; (2014)
      We report on a polarization measurement of inclusive J/ψ mesons in the di-electron decay channel at mid-rapidity at 2<pT<6 GeV/c in p+p collisions at √s=200 GeV. Data were taken with the STAR detector at RHIC. The J/ψ polarization measurement should help to distinguish between different models of the J/ψ production mechanism since they predict different ...
    • J/ψ production at low pT in Au + Au and Cu + Cu collisions at √sNN =200 GeV with the STAR detector 

      STAR Collaboration; Butterworth, J.; Eppley, G.; Geurts, F.; Llope, W.J.; (2014)
      The J/ψ pT spectrum and nuclear modification factor (RAA) are reported for pT<5GeV/c and |y|<1 from 0% to 60% central Au+Au and Cu+Cu collisions at √ sNN =200GeV at STAR. A significant suppression of pT-integrated J/ψ production is observed in central Au+Au events. The Cu+Cu data are consistent with no suppression, although the precision is limited ...
    • J/ψ production cross section and its dependence on charged-particle multiplicity in p + p collisions at s=200 GeV 

      STAR Collaboration; Brandenburg, J.D.; Butterworth, J.; Eppley, G.; Geurts, F.; (2018)
      We present a measurement of inclusive J/ψ production at mid-rapidity (|y|<1) in p+p collisions at a center-of-mass energy of s=200 GeV with the STAR experiment at the Relativistic Heavy Ion Collider (RHIC). The differential production cross section for J/ψ as a function of transverse momentum (pT) for 0<pT<14GeV/c and the total cross section are ...
    • A jellium model of a catalyst particle in carbon nanotube growth 

      Artyukhov, Vasilii I.; Liu, Mingjie; Penev, Evgeni S.; Yakobson, Boris I. (2017)
      We show how a jellium model can represent a catalyst particle within the density-functional theory based approaches to the growth mechanism of carbon nanotubes (CNTs). The advantage of jellium is an abridged, less computationally taxing description of the multi-atom metal particle, while at the same time in avoiding the uncertainty of selecting a ...
    • Jesus Revealed: The Dynamics of Early Christian Mysticism 

      DeConick, April D.; Arbel, Daphna V.; Orlov, Andrei A. (2010)
    • Jet and underlying event properties as a function of charged-particle multiplicity in proton–proton collisions at √s=7 TeV 

      CMS Collaboration; Adair, A.; Akgun, B.; Ecklund, K.M.; Geurts, F.J.M.; (2013)
      Characteristics of multi-particle production in proton-proton collisions at √s=7 TeV are studied as a function of the charged-particle multiplicity, N ch. The produced particles are separated into two classes: those belonging to jets and those belonging to the underlying event. Charged particles are measured with pseudorapidity |η|<2.4 and transverse ...
    • Jet momentum dependence of jet quenching in PbPb collisions at √SNN=2.76 TeV 

      CMS Collaboration; Adair, A.; Boulahouache, C.; Cuplov, V.; Ecklund, K.M.; (2012)
      Dijet production in PbPb collisions at a nucleon–nucleon center-of-mass energy of 2.76 TeV is studied with the CMS detector at the LHC. A data sample corresponding to an integrated luminosity of 150 μb−1 is analyzed. Jets are reconstructed using combined information from tracking and calorimetry, using the anti-kTkT algorithm with R=0.3. The dijet ...
    • Jet production rates in association with W and Z bosons in pp collisions at √s=7TeV 

      CMS Collaboration; Adair, A.; Boulahouache, C.; Ecklund, K.M.; Geurts, F.J.M.; (2012)
      Measurements of jet production rates in association with W and Z bosons for jet transverse momenta above 30 GeV are reported, using a sample of proton-proton collision events recorded by CMS at s√=7TeV, corresponding to an integrated luminosity of 36 pb − 1. The study includes the measurement of the normalized inclusive rates of jets σ(V + ≥ n ...
    • Jet properties in PbPb and pp collisions at sNN−−−−√=5.02 TeV 

      CMS collaboration; Chen, Z.; Ecklund, K.M.; Freed, S.; Geurts, F.J.M.; (2018)
      Modifications of the properties of jets in PbPb collisions, relative to those in pp collisions, are studied at a nucleon-nucleon center-of-mass energy of sNN−−−−√=5.02sNN=5.02 \sqrt{s_{\mathrm{N}\;\mathrm{N}}}=5.02 TeV via correlations of charged particles with the jet axis in relative pseudorapidity (Δη), relative azimuth (Δϕ), and relative angular ...
    • Jet Shapes of Isolated Photon-Tagged Jets in Pb-Pb and pp Collisions at √sNN=5.02  TeV 

      CMS Collaboration (2019)
      The modification of jet shapes in Pb-Pb collisions, relative to those in pp collisions, is studied for jets associated with an isolated photon. The data were collected with the CMS detector at the LHC at a nucleon-nucleon center-of-mass energy of 5.02 TeV. Jet shapes are constructed from charged particles with track transverse momenta (pT) above 1 ...
    • Jet-Hadron Correlations in √sNN=200  GeV p+p and Central Au+Au Collisions 

      STAR Collaboration; Butterworth, J.; Eppley, G.; Geurts, F.; Llope, W.J.; (2014)
      Azimuthal angular correlations of charged hadrons with respect to the axis of a reconstructed (trigger) jet in Au+Au and p+p collisions at √sNN=200  GeV in STAR are presented. The trigger jet population in Au+Au collisions is biased toward jets that have not interacted with the medium, allowing easier matching of jet energies between Au+Au and p+p ...
    • John Rivals Thomas: From Community Conflict to Gospel Narrative 

      DeConick, April D.; Fortna, Robert T.; Thatcher, Tom (2001)
      This article is not the first attempt to discuss the relationship between the Gospels of John and Thomas. There is already a formidable amount of literature on the subject, most of which tries to establish direct literary dependence between the two books or the use of common sources (see DeConick 2001). The present essay, however, will explore the ...
    • Joint assembly and genetic mapping of the Atlantic horseshoe crab genome reveals ancient whole genome duplication 

      (2014)
      Horseshoe crabs are marine arthropods with a fossil record extending back approximately 450 million years. They exhibit remarkable morphological stability over their long evolutionary history, retaining a number of ancestral arthropod traits, and are often cited as examples of “living fossils.” As arthropods, they belong to the Ecdysozoa, an ancient ...
    • Joint Bayesian variable and graph selection for regression models with network-structured predictors 

      Peterson, C.B.; Stingo, F.C.; Vannucci, M. (2016)
      In this work, we develop a Bayesian approach to perform selection of predictors that are linked within a network. We achieve this by combining a sparse regression model relating the predictors to a response variable with a graphical model describing conditional dependencies among the predictors. The proposed method is well-suited for genomic applications ...
    • Joint inversion of receiver functions and surface waves with enhanced preconditioning on densely distributed CNDSN stations: Crustal and upper mantle structure beneath China 

      Chen, Youlin; Niu, Fenglin (2016)
      We present shear wave velocity structure beneath China by joint modeling of teleseismic receiver function and Rayleigh wave group velocity dispersion data observed at +1000 permanent broadband seismic stations in the Chinese National Digital Seismic Network (CNDSN). A ray-parameter-based stacking method is employed to minimize artifacts in stacking ...
    • JP-8 Desulfurization by CuNa-Y Zeolite at Elevated Temperatures Has Two Distinct Stages: Chemisorption Followed by Surface Reactions 

      da Silva, Priscilla Dias; Wong, Michael S.; Zygourakis, Kyriacos (2021)
      This study evaluates the performance of continuous-flow adsorbers for adsorptive desulfurization. JP-8 fuel with 2230 ppmw of sulfur was treated in a flow-through adsorber packed with CuNa-Y zeolite pellets and operating at 180 °C and 200 psig with liquid hourly space velocities (LHSV) from 0.13 to 3.24 h–1. Our results showed that a flow-through ...
    • K-point longitudinal acoustic phonons are responsible for ultrafast intervalley scattering in monolayer MoSe2 

      Bae, Soungmin; Matsumoto, Kana; Raebiger, Hannes; Shudo, Ken-ichi; Kim, Yong-Hoon; (2022)
      In transition metal dichalcogenides, valley depolarization through intervalley carrier scattering by zone-edge phonons is often unavoidable. Although valley depolarization processes related to various acoustic phonons have been suggested, their optical verification is still vague due to nearly degenerate phonon frequencies on acoustic phonon branches ...
    • K2ᅠReveals Pulsed Accretion Driven by the 2 Myr Old Hot Jupiter CI Tau b 

      Biddle, Lauren I.; Johns-Krull, Christopher M.; Llama, Joe; Prato, Lisa; Skiff, Brian A. (2018)
      CIᅠTau is a young (~2 Myr) classical T Tauri star located in the Taurus star-forming region. Radial velocity observations indicate it hosts a Jupiter-sized planet with an orbital period of approximately 9 days. In this work, we analyze time series of CIᅠTau's photometric variability as seen byᅠK2. The light curve reveals the stellar rotation period ...
    • Kagome fiber based ultrafast laser microsurgery probe delivering micro-Joule pulse energies 

      Subramanian, Kaushik; Gabay, Ilan; Ferhanoğlu, Onur; Shadfan, Adam; Pawlowski, Michal; (2016)
      We present the development of a 5 mm, piezo-actuated, ultrafast laser scalpel for fast tissue microsurgery. Delivery of micro-Joules level energies to the tissue was made possible by a large, 31 μm, air-cored inhibited-coupling Kagome fiber. We overcome the fiber’s low NA by using lenses made of high refractive index ZnS, which produced an optimal ...