32,431 research outputs found
author-bios-SRD-19-0063.R1 – Supplemental material for The Network Structure of Police Misconduct
No full textSupplemental material, author-bios-SRD-19-0063.R1 for The Network Structure of Police Misconduct by George Wood, Daria Roithmayr and Andrew V. Papachristos in Socius</p
Relating production and masses of the vector and P-wave mesons for light and heavy flavours al LEP
No full textThe production rates of primary vector and P-wave mesons in Z hadronic decays are analysed. The mass dependence of production rates for the bottom, charm, strange charm and three families of the light-flavour mesons is found to be very similar, allowing to relate the relative production rates for mesons with different flavours and, possibly, their masses. The strange axial mesons K_1(1273) and K_1(1402) might be assigned to the 1^+(1/2) and 1^+(3/2) levels degenerate with the 0^+(1/2) and 2^+(3/2) levels of the K^*_0(1430) and K^*_2(1430), respectively, if the observed K^*_0(1430) mass is replaced by its ``bare'' q\bar{q} mass corresponding to the K-matrix pole and close to the K_1(1273) mass. Then the 0^+(1/2) and 1^+(1/2) levels are below the 1^+(3/2) and 2^+(3/2) levels for the strange, charm and bottom mesons
Illuminaçao Apologetica do retrato de Morteçor en que aparecem com mais vivas côres os erros do author do novo Methodo, e seu Apologista ...
No full textFecha sacada de la pág.2 y 159Sign.: A-V\p4\sError tipográfico de signatura : a B\b2\s llama B\b3\
Comparing fragmentation of strange quark in decays and p reactions
No full textThe ratios of the production rates K*(892)/K, phi/K, rho^0/pi, omega/pi, Delta^{++}/p, Sigma+(1385)/Lambda, Xi^-/Lambda and their x_p dependences obtained from results of the LEP and SLD experiments in Z hadronic decays are analysed. The corresponding ratios for promptly produced mesons are estimated at x_p -> 1. A comparison of the LEP results with those from the Mirabelle and BEBC K+p experiments at 32 and 70 GeV/c shows striking similarity in fragmentation of the strange valence quark of the incident K+ and strange quarks produced in Z decays. The JETSET model describes the LEP, Mirabelle and BEBC results. The model of Pei is consistent with the data for mesons, but presumably underestimates the fractions of primary octet baryons. The quark combinatorics model of Anisovich et al.is incompatible with the data
Going Beyond Counting First Authors in Author Co-citation Analysis
No full textThe present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation
counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings
are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that
only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into
account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
Scaling in energy dependence of relative particle production rates and properties of the distributions in annihilations
No full textWith the production rates, , of the K/sup 0/, K/sup +/, p and Lambda and average charged particle multiplicities, , recently measured at LEP1.5-LEP2, scaling of the relative particle production rates / is seen in a broad center of mass energy range from square root s=29-35 to 183 Ge V. The quantity xi /sub 0///sup 1/2 /, where xi /sub 0/ is the position of the maximum of the xi =-In(2p/ square root s) distribution and p is the particle momentum, also scales from 14 to 183 GeV. It is shown that the Gaussian shape of the xi distribution is a simple consequence of longitudinal phase space. The slope parameter in the logarithmic increase of xi /sub 0/ with the center of mass energy must be smaller than 1, as observed experimentally, but this does not necessarily imply a manifestation of coherence. (14 refs)
Slow proton and Delta /sup ++/ production in K/sup +/p interactions at 70 GeV/c
No full textThe inclusive inelastic processes K/sup +/p to pX/sup +/ and K/sup +/p to Delta /sup ++/X/sup 0/ are studied in an incident momentum of 70 Ge V/C. The data comes from the Big European Bubble Chamber BEBC filled with hydrogen, exposed to an rf separated K/sup +/ beam at the CERN SPS accelerator. The inclusive cross section is measured for protons with laboratory momentum p/sub LAB/<or approximately=1.2 GeV/c. Comparisons are made with other K/sup +/p data and with pp data at 69 GeV/c. Evidence is found for Pomeron exchange at the beam vertex both for slow proton and Delta /sup ++/-production as well as for absorptive pion exchange at the (p, Delta /sup ++/) vertex. (11 refs)
Universal Statistical Properties of Inertial-particle Trajectories in Three-dimensional, Homogeneous, Isotropic, Fluid Turbulence
No full textWe obtain new universal statistical properties of heavy-particle trajectories in three-dimensional, statistically steady, homogeneous, and isotropic turbulent flows by direct numerical simulations. We show that the probability distribution functions (PDFs) P(Φ), of the angle Φ between the Eulerian velocity u and the particle velocity v, at a point and time, scales as P(Φ) ∼Φ−, with a new universal exponent ≃ 4
NMN adenylyltransferase and poly (ADP-Ribose) polymerase in bovine tissues and characterization of NMN adenylyltransferase from bull testis
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