Results 31 to 40 of about 884,607 (65)

Phi production in 158-GEV/u Pb + Pb collisions [PDF]

open access: yes, 2005
Preliminary data on phi production in central Pb + Pb collisions at 158 GeV per nucleon are presented, measured by the NA49 experiment in the hadronic decay channel phi - K+K-. At mid-rapidity, the kaons were separated from pions and protons by combining
Collaboration, NA49, Friese, Volker
core  

Ion microprobe zircon geochronology of the Uivak Gneisses: Implications for the evolution of early terrestrial crust in the North Atlantic Craton [PDF]

open access: yes
Ion microprobe U-Pb results for zircons from three Uivak I gneisses and one specimen of Uivak II gneiss, from the Saglek-Hebron area of Northern Labrador are reported.
Collerson, K. D.
core   +1 more source

Distinct ^(238)U/^(235)U ratios and REE patterns in plutonic and volcanic angrites: Geochronologic implications and evidence for U isotope fractionation during magmatic processes [PDF]

open access: yes, 2017
Angrites are differentiated meteorites that formed between 4 and 11 Myr after Solar Systemformation, when several short-lived nuclides (e.g., ^(26)Al-^(26)Mg, ^(53)Mn-^(53)Cr, ^(182)Hf-^(182)W) were still alive. As such, angrites are prime anchors to tie
Dauphas, Nicolas   +2 more
core  

Supersymmetric U(1)B x U(1)L model with leptophilic and leptophobic cold dark matters

open access: yes, 2011
We consider a supersymmetric model with extra $U(1)_B \times U(1)_L$ gauge symmetry that are broken spontaneously. Salient features of this model are that there are three different types of cold dark matter (CDM) candidates, and neutral scalar sector has
Aalseth   +28 more
core   +1 more source

U-Th-Pb isotopic systematics of lunar meteorite Asuka-31 [PDF]

open access: yes, 1992
U-Th-Pb isotopic systematics indicate that Asuka-31 is of lunar origin and was formed 3940±8Ma. The Pb isotopic composition is extremely nonradiogenic compared with those of typical Apollo mare basalts. The Pb-Pb, U-Pb, and Th-Pb ages are concordant at 3.
Keiji Misawa   +2 more
core   +1 more source

Hubungan Asupan Energi, Protein, Seng, dan Kejadian Infeksi Kecacingan Status Gizi Anak Umur 12-36 Bulan [PDF]

open access: yes, 2016
Latar Belakang: Faktor penyebab langsung masalah status gizi anak berupa asupan makan dan infeksi. Asupan makan yang tidak sesuai dengan kebutuhan akan mengganggu status gizi.
Febrindari, Ayu Puspita   +1 more
core   +1 more source

U-Pb chronology of the Solar System's oldest solids with variable 238 U/ 235 U

open access: yes, 2016
Accurate determination of the absolute ages of the oldest Solar System objects - chondrules and Ca-Al-rich inclusions (CAIs), requires knowledge of their 238U/235U ratios.
Amelin, Yuri   +6 more
core   +1 more source

Angular anisotropy of the fusion-fission and quasifission fragments

open access: yes, 2007
The anisotropy in the angular distribution of the fusion-fission and quasifission fragments for the $^{16}$O+$^{238}$U, $^{19}$F+$^{208}$Pb and $^{32}$S+$^{208}$Pb reactions is studied by analyzing the angular momentum distributions of the dinuclear ...
A. I. Muminov   +50 more
core   +1 more source

PHENIX Measurement of Parity-Violating Single Spin Asymmetry in W Production in p+p Collisions at 500 GeV

open access: yes, 2010
The flavor-separated polarized parton distribution functions for light quarks and anti-quarks in the proton can be studied in the production of $W$ bosons in $p$+$p$ collisions. The $W$s are produced in processes like $u+\bar{d}\rightarrow W^+$ and $\bar{
Pate, Stephen
core   +1 more source

Extracting the equation of state from a microscopic non-equilibrium model [PDF]

open access: yes, 1996
We study the thermodynamic properties of infinite nuclear matter with the Ultrarelativistic Quantum Molecular Dynamics (URQMD), a semiclassical transport model, running in a box with periodic boundary conditions.
Bass, S. A.   +14 more
core   +1 more source

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