Results 21 to 30 of about 849,713 (290)

Distribution and Source of Pb in Urban Topsoil [PDF]

open access: yesE3S Web of Conferences, 2020
In the process of industrialization and urbanization, human activities have caused more and more heavy metal lead to enter the surface soil, causing harm to the health of residents. Analysis of the status of lead pollution in urban surface soils in China
Luo Yuhu, Lu Nan
doaj   +1 more source

Bottomonium transport in p-Pb and Pb-Pb collisions at the LHC

open access: yes, 2023
We employ the Boltzmann transport model to study the sequential suppression pattern of $Υ(1S,2S,3S)$ states in both small (p-Pb) and the large (Pb-Pb) collision systems at $\sqrt{s_{NN}}=5.02$ TeV. The cold nuclear matter effects happen before the formation of bottomonium, which is the same for different bottomonium states $Υ(1S,2S,3S)$. The sequential
Chen, Baoyi, Tong, Bo
openaire   +2 more sources

Indications of suppression of excited Υ states in Pb-Pb collisions at √sNN = 2.76TeV [PDF]

open access: yes, 2011
This is the pre-print version of the Published Article which can be accessed from the link below.A comparison of the relative yields of Υ resonances in the μ+μ- decay channel in Pb-Pb and pp collisions at a center-of-mass energy per nucleon pair of 2.76 ...
S. Lynch   +999 more
core   +1 more source

Correlations and fluctuations in Pb+Pb collisons

open access: yesNuclear Physics B - Proceedings Supplements, 2001
Results on two-particle correlations, deuteron production, event anisotropy and event-by-event fluctuations of p_T/ and K/ pi were obtained by the NA49 experiment in Pb+Pb collisions at 158 A.GeV beam energy. The interpretation of the measurements is discussed in light of the search for deconfinement.
Seyboth, P.   +111 more
openaire   +3 more sources

The graphical presentation of lead isotope data for environmental source apportionment [PDF]

open access: yes, 2010
Lead isotope ratios are widely used to identify original sources of Pb in the environment. Such source apportionment depends on the ability to distinguish potential sources on the basis of their isotopic composition. However, almost all terrestrial Pb is
Ellam, R.M., R.M. Ellam
core   +1 more source

Jet fragmentation in p + Pb and Pb + Pb with ATLAS [PDF]

open access: yesNuclear and Particle Physics Proceedings, 2016
Abstract The modification of jets in heavy ion collisions is a central tool to study the properties of QCD matter at high temperature and its interaction with hard probes. Jet production in heavy ion collisions is observed to be suppressed relative to expectations from pp collisions and the measurement of the longitudinal fragmentation functions in
openaire   +1 more source

ψ(2S) Suppression in Pb-Pb Collisions at the LHC

open access: yesPhysical review letters, 2022
Published by APS, College Park, Md.
Alocco, G   +313 more
openaire   +16 more sources

Toxicity of Pb and of Pb/Cd combination on the springtail Folsomia candida in natural soils: Reproduction, growth and bioaccumulation as indicators [PDF]

open access: yes, 2012
The toxicity of Pb and Cd+Pb was assessed on the Collembola F. candida in two cultivated soils (SV and AU) with low organic matter (OM) content and circumneutral to basic pH, and an acid forested soil (EPC) with high OM content.
A. Bianco   +9 more
core   +1 more source

Positron emission in PbPb and PbU collisions

open access: yesPhysics Letters B, 1978
Abstract We present quantitative calculations of positron emission dynamically induced in the collision of PbPb and PbU. The results are compared with recent measurements, yielding evidence for new processes characteristic for quantum electrodynamics of strong fields.
J. Reinhardt   +4 more
openaire   +1 more source

Chemical equilibration in Pb+Pb collisions at the SPS [PDF]

open access: yesPhysics Letters B, 1999
An improved statistical model with excluded volume corrections and resonance decays is introduced and applied to the complete presently available set of particle ratios as measured by the various experiments at the SPS in Pb+Pb collisions. The results imply that a high degree of hadrochemical equilibration is reached at chemical freeze-out in Pb+Pb ...
Braun-Munzinger, P.   +2 more
openaire   +2 more sources

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