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open access

Transverse momentum and centrality dependence of high-ptnon-photonic electron suppression in Au+Au collisions at $\sqrt{s_{NN}}$= 200 GeV

Description: The STAR collaboration at RHIC reports measurements of theinclusive yield of non-photonic electrons, which arise dominantly fromsemi-leptonic decays of heavy flavor mesons, over a broad range oftransverse momenta (1.2<pt<10 gevc) in pp, dAu, and AuAucollisions at sqrt sNN = 200 GeV. The non-photonic electron yieldexhibits unexpectedly large suppression in central AuAu collisions athigh pt, suggesting substantial heavy quark energy loss at RHIC. Thecentrality and \pt dependences of the suppressi… more
Date: July 11, 2006
Creator: Abelev, B. I.; Adams, J.; Aggarwal, M. M.; Ahammed, Z.; Amonett, J.; Anderson, B. D. et al.
Item Type: Refine your search to only Article
open access

Evolution of cool-roof standards in the United States

Description: Roofs that have high solar reflectance and high thermal emittance stay cool in the sun. A roof with lower thermal emittance but exceptionally high solar reflectance can also stay cool in the sun. Substituting a cool roof for a noncool roof decreases cooling-electricity use, cooling-power demand, and cooling-equipment capacity requirements, while slightly increasing heating-energy consumption. Cool roofs can also lower citywide ambient air temperature in summer, slowing ozone formation and incre… more
Date: July 11, 2008
Creator: Akbari, Hashem; Akbari, Hashem & Levinson, Ronnen
Item Type: Refine your search to only Article
open access

Valence band anticrossing in GaBixAs1-x

Description: The optical properties of GaBixAs1-x (0.04&lt; x&lt; 0.08) grown by molecular beam epitaxy have been studied by photomodulated reflectance spectroscopy. The alloys exhibit a strong reduction in the bandgap as well as an increase in the spin-orbit splitting energy with increasing Bi concentration. These observations are explained by a valence band anticrossing model, which shows that a restructuring of the valence band occurs as the result of an anticrossing interaction between the extended stat… more
Date: July 11, 2007
Creator: Alberi, K.; Dubon, O. D.; Walukiewicz, W.; Yu, K. M.; Bertulis, K. & Krotkus, A.
Item Type: Refine your search to only Article
open access

Final Report for 'An Abstract Job Handling Grid Service for Dataset Analysis'

Description: For Phase I of the Job Handling project, Tech-X has built a Grid service for processing analysis requests, as well as a Graphical User Interface (GUI) client that uses the service. The service is designed to generically support High-Energy Physics (HEP) experimental analysis tasks. It has an extensible, flexible, open architecture and language. The service uses the Solenoidal Tracker At RHIC (STAR) experiment as a working example. STAR is an experiment at the Relativistic Heavy Ion Collider (RH… more
Date: July 11, 2005
Creator: Alexander, David A.
Item Type: Refine your search to only Report
open access

Coil Creep and Skew-Quadrupole Field Components in the Tevatron

Description: During the start-up of Run II of the Tevatron Collider program, several issues surfaced which were not present, or not seen as detrimental, during Run I. These included the repeated deterioration of the closed orbit requiring orbit smoothing every two weeks or so, the inability to correct the closed orbit to desired positions due to various correctors running at maximum limits, regions of systematically strong vertical dipole corrections, and the identification of very strong coupling between t… more
Date: July 11, 2011
Creator: Annala, G.; Harding, D. J.; Syphers, M. J. & /Fermilab
Item Type: Refine your search to only Article
open access

The European Union in 2005 and Beyond

Description: The European Union (EU) experienced significant changes in 2004 as it enlarged from 15 to 25 members and continued work on a new constitutional treaty to institute internal reforms and further EU political integration. In 2005, the EU is expected to build on these efforts and seek to implement several recent foreign policy and defense initiatives. This report describes the current status of the EU’s “constitution,” EU enlargement, the EU’s evolving foreign and defense policies, and possible imp… more
Date: July 11, 2005
Creator: Archick, Kristin
Item Type: Refine your search to only Report
open access

The European Union: Questions and Answers

Description: This report provides answers to key questions related to the European Union (EU). It describes the EU’s evolution, its governing institutions, trade policy, and efforts to forge common foreign and defense policies. The report also addresses the EU-U.S. and EU-NATO relationships.
Date: July 11, 2005
Creator: Archick, Kristin
Item Type: Refine your search to only Report
open access

The European Union's Constitution

Description: In June 2004, the European Union (EU) concluded work on a constitutional treaty that contains changes to the EU’s governing institutions and decision-making processes. This new “constitution” grew out of the 2002-2003 Convention on the Future of Europe and previous EU efforts to institute internal reforms ahead of the Union’s expansion from 15 members to 25 in May 2004. The “constitution” aims to enable a larger EU to operate effectively and prevent gridlock, but it must still be ratified by al… more
Date: July 11, 2005
Creator: Archick, Kristin
Item Type: Refine your search to only Report
open access

Morocco: Current Issues

Description: This report discusses the current political and foreign policy status of Morocco, especially with regard to its relationship with the United States and its struggles combating terrorism.
Date: July 11, 2011
Creator: Arieff, Alexis
Item Type: Refine your search to only Report
open access

State Compensation: A No-cost Scheme for Scalable Failure Recovery in Tree-based Overlay Networks

Description: Tree-based overlay networks (TB{bar O}Ns) have become important for scalable data multicast and aggregation. This infrastructure's generality has lead to widespread usage in large scale and widely distributed environments--environments in which reliability must be addressed. This paper presents state compensation, a novel reliability concept for TB{bar O}N environments that avoids explicit state replication (such as checkpoints) for failure recovery by leveraging general properties of TB{bar O}… more
Date: July 11, 2006
Creator: Arnold, D C & Miller, B P
Item Type: Refine your search to only Article
open access

Observation of the Bottomonium Ground State in the Decay Y(3S) to ynb

Description: The authors report the results of a search for the bottomonium ground state {eta}{sub b}(1S) in the photon energy spectrum with a sample of (109 {+-} 1) million of {Upsilon}(3S) recorded at the {Upsilon}(3S) recorded at the {Upsilon}(3S) energy with the BABAR detector at the PEP-II B factory at SLAC. They observe a peak in the photon energy spectrum at E{sub {gamma}} = 921.2{sub -2.8}{sup +2.1}(stat) {+-} 2.4(syst) MeV with a significance of 10 standard deviations. They interpret the observed p… more
Date: July 11, 2008
Creator: Aubert, B.
Item Type: Refine your search to only Article
open access

An Amplitude Analysis of the Decay B+- -> pi+- pi+- pi-+

Description: The authors present a Dalitz-plot analysis of charmless B{sup {+-}} decays to the final state {pi}{sup {+-}}{pi}{sup {+-}}{pi}{sup {-+}} using 210 fb{sup -1} of data recorded by the BABAR experiment at {radical}s = 10.58 GeV. We measure the branching fractions {Beta}(B{sup {+-}} {yields} {pi}{sup {+-}}{pi}{sup {+-}}{pi}{sup {-+}}) = (16.2 {+-} 1.2 {+-} 0.9) x 10{sup -6} and {Beta}(B{sup {+-}} {yields} {rho}{sup 0}(770){pi}{sup {+-}}) = (8.8 {+-} 1.0 {+-} 0.6{sub -0.7}{sup +0.1}) x 10{sup -6}. M… more
Date: July 11, 2005
Creator: Aubert, B.; Barate, R.; Boutigny, D.; Couderc, F.; Karyotakis, Y.; Lees, J. P. et al.
Item Type: Refine your search to only Article
open access

Cable Measuring Engine Operation Procedures

Description: The Cable Measuring Engine (CME) is a tool which measures and records the cable dimensions in a nondestructive fashion. It is used in-line with the superconductor cable as it is being made. The CME is intended to be used as a standard method of measuring cable by the various manufacturers involved in the cable process.
Date: July 11, 1997
Creator: Authors, Various
Item Type: Refine your search to only Report
open access

Production test IP-376-D, Supplement B Irradiation of MGCR-HDR-3 Test Element

Description: The objective of this supplement to PT-IP-376-D, Irradiation of MGCR-HDR-3 Test Element is to authorize 1000 hours of operation at a maximum test specimen surface temperature of 1700 F. The original production test authorized a test duration of four months at a maximum specimen surface temperature of 1500 F; supplement A authorized extension of the test duration to ten months. The desired increase in surface temperature is requested to demonstrate the general feasibility of operation of the fue… more
Date: July 11, 1961
Creator: Baars, R. E.
Item Type: Refine your search to only Report
open access

Design and Implementation of an Anomaly Detector

Description: This paper describes the design and implementation of a general-purpose anomaly detector for streaming data. Based on a survey of similar work from the literature, a basic anomaly detector builds a model on normal data, compares this model to incoming data, and uses a threshold to determine when the incoming data represent an anomaly. Models compactly represent the data but still allow for effective comparison. Comparison methods determine the distance between two models of data or the distance… more
Date: July 11, 2005
Creator: Bagherjeiran, A.; Cantu-Paz, E. & Kamath, C.
Item Type: Refine your search to only Report
open access

Tank 241-C-106 Sluicing Evaluation

Description: The Process Engineering Analyses group performed a Thermal evaluation of the Project W-320 retrieval process. The objective of this study was to characterize the thermal response of the tank 241-C-106 waste during the sluicing operation and to define operating limits (defined with measurable tank data), which will maintain the waste subcooling required by the operational controls.
Date: July 11, 1996
Creator: Bander, T. J.; Crea, B. A. & Ogden, D.M., Westinghouse Hanford
Item Type: Refine your search to only Report
open access

Managing Carbon Regulatory Risk in Utility Resource Planning: Current Practices in the Western United States

Description: Concerns about global climate change have substantially increased the likelihood that future policy will seek to minimize carbon dioxide emissions. As such, even today, electric utilities are making resource planning and investment decisions that consider the possible implications of these future carbon regulations. In this article, we examine the manner in which utilities assess the financial risks associated with future carbon regulations within their long-term resource plans. We base our ana… more
Date: July 11, 2008
Creator: Barbose, Galen; Wiser, Ryan; Phadke, Amol & Goldman, Charles
Item Type: Refine your search to only Article
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