Showing papers by "L.J. Rosenberg published in 2011"
TL;DR: In this paper, the centrality dependence of both the charged particle distributions and the multiplicity at mid-rapidity were measured using the PHOBOS detector at the BNL Relativistic Heavy-Ion Collider (RHIC).
Abstract: Pseudorapidity distributions of charged particles emitted in Au+Au, Cu+Cu, d+Au, and p+p collisions over a wide energy range have been measured using the PHOBOS detector at the BNL Relativistic Heavy-Ion Collider (RHIC). The centrality dependence of both the charged particle distributions and the multiplicity at midrapidity were measured. Pseudorapidity distributions of charged particles emitted with |{eta}|<5.4, which account for between 95% and 99% of the total charged-particle emission associated with collision participants, are presented for different collision centralities. Both the midrapidity density dN{sub ch}/d{eta} and the total charged-particle multiplicity N{sub ch} are found to factorize into a product of independent functions of collision energy, {radical}(s{sub N{sub N}}), and centrality given in terms of the number of nucleons participating in the collision, N{sub part}. The total charged particle multiplicity, observed in these experiments and those at lower energies, assumes a linear dependence of (lns{sub N{sub N}}){sup 2} over the full range of collision energy of {radical}(s{sub N{sub N}})=2.7-200 GeV.
243 citations
01 Feb 2011
TL;DR: Alver et al. as mentioned in this paper measured the particle multiplicity and pseudorapidity distributions with the PHOBOS detector at the BNL Relativistic Heavy-Ion Collider (RHIC).
Abstract: Citation Alver, B. et al. " Charged-particle multiplicity and pseudorapidity distributions measured with the PHOBOS detector in Au+Au, Cu+Cu, d+Au, and p+p collisions at ultrarelativistic energies. " Physical Review C 83. Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use. The MIT Faculty has made this article openly available. Please share how this access benefits you. Your story matters. Pseudorapidity distributions of charged particles emitted in Au + Au, Cu + Cu, d + Au, and p + p collisions over a wide energy range have been measured using the PHOBOS detector at the BNL Relativistic Heavy-Ion Collider (RHIC). The centrality dependence of both the charged particle distributions and the multiplicity at midrapidity were measured. Pseudorapidity distributions of charged particles emitted with |η| < 5.4, which account for between 95% and 99% of the total charged-particle emission associated with collision participants, are presented for different collision centralities. Both the midrapidity density dN ch /dη and the total charged-particle multiplicity N ch are found to factorize into a product of independent functions of collision energy, √ s NN , and centrality given in terms of the number of nucleons participating in the collision, N part. The total charged particle multiplicity, observed in these experiments and those at lower energies, assumes a linear dependence of (ln s NN) 2 over the full range of collision energy of √ s NN = 2.7–200 GeV.
37 citations
DOI•
01 Jan 2011
TL;DR: In this paper, Asztalos et al. proposed a method to detect the presence of radio waves in the Earth's magnetic field using a single antenna array at the Lawrence Livermore National Laboratory (LLNL).
Abstract: S.J. Asztalos, R. Bradley, G. Carosi, J. Clarke, C. Hagmann, J. Hoskins, M. Hotz, D. Kinion, C. Martin, L. J Rosenberg, G. Rybka, P. Sikivie, N.S. Sullivan, D.B. Tanner, K. van Bibber, and A. Wagner Lawrence Livermore National Laboratory, Livermore, CA, 94550 National Radio Astronomy Observatory, Charlottesville, VA 22903 University of California and Lawrence Berkeley National Laboratory, Berkeley, CA 94720 University of Florida, Gainesville, FL 32611 University of Washington, Seattle, WA 98195
7 citations
Posted Content•
TL;DR: In this article, a case study of moving an extremely delicate superconducting magnet, immersed in liquid nitrogen, from Livermore, CA to Seattle, WA showing the steps of fatigue analysis of the load, a test move, and acceleration monitoring of the final move to ensure a successful damage-free transport.
Abstract: When valuable delicate goods are shipped by truck, attention must be paid to vibrations that may cause damage. We present a case study of moving an extremely delicate 6230-kg superconducting magnet, immersed in liquid nitrogen, from Livermore, CA to Seattle, WA showing the steps of fatigue analysis of the load, a test move, and acceleration monitoring of the final move to ensure a successful damage-free transport.
1 citations