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open access

F(1) for B (forward) D*ln from lattice QCD

Description: The authors would like to determine |V{sub cb}| from the exclusive semi-leptonic decay B{yields}D*lv. The differential decay rate is d{Lambda}/dw = G{sub F}{sup 2}/4{pi}{sup 3}(w{sup 2}-1){sup 1/2}m{sub D*}{sup 3} (m{sub B}-m{sub D*}){sup 2}G(w)|V{sub cb}|{sup 2}|F{sub B{yields}D*}(w)|{sup 2}, where w = v {center_dot} v{prime} and G(1) = 1. At zero recoil (w = 1) heavy-quark symmetry requires F{sub B{yields}D*}(1) to be close to 1. So, |V{sub cb}| is determined by dividing measurements of d{Lam… more
Date: July 12, 2002
Creator: A.S. Kronfeld, P.B. Mackenzie and J.N. Simone
Partner: UNT Libraries Government Documents Department
open access

[Media Release: AIDS Action Council HUD Initiative]

Description: A media release from the AIDS Action Council discussing the U.S. Department of Housing and Urban Development's recent announcement that they would launch a new initiative that would provide federally funded housing for peoples with HIV/AIDS.
Date: August 12, 1994
Creator: AIDS Action Council
Partner: UNT Libraries Special Collections
open access

ENGINEERING OF THE AGS SNAKE COIL ASSEMBLY.

Description: A 30% Snake superconducting magnet is proposed to maintain polarization in the AGS proton beam, the magnetic design of which is described elsewhere. The required helical coils for this magnet push the limits of the technology developed for the RHIC Snake coils. First, fields must be provided with differing pitch along the length of the magnet. To accomplish this, a new 3-D CAD system (''Pro/Engineer'' from PTC), which uses parametric techniques to enable fast iterations, has been employed. Revi… more
Date: May 12, 2003
Creator: ANERELLA,M. GUPTA,R. KOVACH,P. MARONE,A. PLATE,S. POWER,K. SCHMALZLE,J. WILLEN,E.
Partner: UNT Libraries Government Documents Department
open access

ATLAS Inner Detector Event Data Model

Description: The data model for event reconstruction (EDM) in the Inner Detector of the ATLAS experiment is presented. Different data classes represent evolving stages in the reconstruction data flow, and specific derived classes exist for the sub-detectors. The Inner Detector EDM also extends the data model for common tracking in ATLAS and is integrated into the modular design of the ATLAS high-level trigger and off-line software.
Date: December 12, 2007
Creator: ATLAS; Akesson, F.; Costa, M. J.; Dobos, D.; Elsing, M.; Fleischmann, S. et al.
Partner: UNT Libraries Government Documents Department
open access

MIL-L-87177 and CLT:X-10 Lubricants Improve Electrical Connector Fretting Corrosion Behavior

Description: We have conducted a fretting research project using MIL-L-87177 and CLT: X-10 lubricants on Nano-miniature connectors. When they were fretted without lubricant, individual connectors first exceeded our 0.5 ohm failure criteria from 2,341 to 45,238 fretting cycles. With additional fretting, their contact resistance increased to more than 100,000 ohms. Unmodified MIL-L-87177 lubricant delayed the onset of first failure to between 430,000 and over 20,000,000 fretting cycles. MIL-L-87177 modified b… more
Date: October 12, 1999
Creator: AUKLAND,NEIL R. & HANLON,JAMES T.
Partner: UNT Libraries Government Documents Department
open access

Study of multi-muon events produced in p anti-p interactions at s**(1/2) = 1.96-TeV

Description: We report the results of a study of multi-muon events produced at the Fermilab Tevatron collider and acquired with the CDF II detector using a dedicated dimuon trigger. The production cross section and kinematics of events in which both muon candidates are produced inside the beam pipe of radius 1.5 cm are successfully modeled by known processes which include heavy flavor production. In contrast, we are presently unable to fully account for the number and properties of the remaining events, in … more
Date: June 12, 2010
Creator: Aaltonen, T.; Phys., /Helsinki Inst. of; Adelman, J.; /Chicago U., EFI; Alvarez Gonzalez, B.; Phys., /Cantabria Inst. of et al.
Partner: UNT Libraries Government Documents Department
open access

Thomson scattering diagnostic analyses to determine the energetic particle distributions in TFTR

Description: The research completed and in progress for the first period of this grant is reviewed. Specific scattering scenarios for TFTR and JET and ITER were studied. The Lodestar scattering code, SKATR, was upgraded to include anisotropic energetic ion distributions and an analytic diffraction formulation was completed. Research continues on JET studies and upgrading the code for JET and ITER relevant conditions.
Date: February 12, 1993
Creator: Aamodt, R. E.; Cheung, P. & Russell, D. A.
Partner: UNT Libraries Government Documents Department
open access

Thomson scattering diagnostic analyses to determine the energetic particle distributions in TFTR. Annual performance report

Description: The research completed and in progress for the first period of this grant is reviewed. Specific scattering scenarios for TFTR and JET and ITER were studied. The Lodestar scattering code, SKATR, was upgraded to include anisotropic energetic ion distributions and an analytic diffraction formulation was completed. Research continues on JET studies and upgrading the code for JET and ITER relevant conditions.
Date: February 12, 1993
Creator: Aamodt, R. E.; Cheung, P. & Russell, D. A.
Partner: UNT Libraries Government Documents Department
open access

Genome-Wide Identification and 3D Modeling of Proteins involved in DNA Damage Recognition and Repair (Final Report)

Description: DNA Damage Recognition and Repair (DDR&R) proteins play a critical role in cellular responses to low-dose radiation and are associated with cancer. We have performed a systematic, genome-wide computational analysis of genomic data for human genes involved in the DDR&R process. The significant achievements of this project include: 1) Construction of the computational pipeline for searching DDR&R genes, building and validation of 3D models of proteins involved in DDR&R; 2) Functional and structur… more
Date: August 12, 2005
Creator: Abagyan, Ruben & An, Jianghong
Partner: UNT Libraries Government Documents Department
open access

Ion Deflection for Final Optics in Laser Inertial Fusion Power Plants

Description: Left unprotected, both transmissive and reflective final optics in a laser-driven inertial fusion power plant would quickly fail from melting, pulsed thermal stress, or degradation of optical properties as a result of ion implantation. One potential option for mitigating this threat is to magnetically deflect the ions such that they are directed to a robust energy dump. In this paper we detail integrated studies that have been carried out to assess the viability of this approach for protecting … more
Date: December 12, 2005
Creator: Abbott, R P
Partner: UNT Libraries Government Documents Department
open access

Interated Intelligent Industrial Process Sensing and Control: Applied to and Demonstrated on Cupola Furnaces

Description: The final goal of this project was the development of a system that is capable of controlling an industrial process effectively through the integration of information obtained through intelligent sensor fusion and intelligent control technologies. The industry of interest in this project was the metal casting industry as represented by cupola iron-melting furnaces. However, the developed technology is of generic type and hence applicable to several other industries. The system was divided into … more
Date: February 12, 2003
Creator: Abdelrahman, Mohamed; Haggard, roger; Mahmoud, Wagdy; Moore, Kevin; Clark, Denis; Larsen, Eric et al.
Partner: UNT Libraries Government Documents Department
open access

Boosted Objects: A Probe of Beyond the Standard Model Physics

Description: We present the report of the hadronic working group of the BOOST2010 workshop held at the University of Oxford in June 2010. The first part contains a review of the potential of hadronic decays of highly boosted particles as an aid for discovery at the LHC and a discussion of the status of tools developed to meet the challenge of reconstructing and isolating these topologies. In the second part, we present new results comparing the performance of jet grooming techniques and top tagging algorith… more
Date: June 12, 2012
Creator: Abdesselam, A.; U., /Oxford; Kuutmann, E.Bergeaas; /DESY; Bitenc, U.; U., /Freiburg et al.
Partner: UNT Libraries Government Documents Department
open access

High Sensitivity Neutron Assay of Grouted Spent Nuclear Fuel Sludge at Hanford

Description: The disposal of the North Loadout Pit (NLOP) waste at Hanford will produce 208-liter grouted sludge drums bearing transuranic (TRU) radionuclides and fission products. Discrimination between low level waste (LLW) and TRU waste requires a lower limit of detection (LLD) of less than 100 nCi (3700 Bq) of TRU alpha activity per gram of waste matrix in order to correctly certify the final waste form. Hanford's Waste Receiving and Processing (WRAP) facility operates two identical Imaging Passive Acti… more
Date: October 12, 2007
Creator: Abdurrahman, N. M.
Partner: UNT Libraries Government Documents Department
open access

Neutronic Benchmarks for the Utilization of Mixed-Oxide Fuel: Joint U.S./Russian Progress Report for Fiscal Year 1997 - Volume 4, Part 2--Saxton Plutonium Program Critical Experiments

Description: Critical experiments with water-moderated, single-region PuO{sub 2}-UO{sub 2} or UO{sub 2}, and multiple-region PuO{sub 2}-UO{sub 2}- and UO{sub 2}-fueled cores were performed at the CRX reactor critical facility at the Westinghouse Reactor Evaluation Center (WREC) at Waltz Mill, Pennsylvania in 1965 [1]. These critical experiments were part of the Saxton Plutonium Program. The mixed oxide (MOX) fuel used in these critical experiments and then loaded in the Saxton reactor contained 6.6 wt% PuO{… more
Date: October 12, 2000
Creator: Abdurrahman, NM
Partner: UNT Libraries Government Documents Department
open access

Electric Transmission: Approaches for Energizing a Sagging Industry

Description: This report discusses factors that have contributed to the lack of new transmission capacity and some of the resulting issues. In addition, the report reviews approaches being taken to address the lack of investment in transmission infrastructure and transmission congestion.
Date: February 12, 2007
Creator: Abel, Amy
Partner: UNT Libraries Government Documents Department
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