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Study ofe+e- to Lambda anti-Lambda, Lambda anti-Sigma^0,Sigma^0 anti-Sigma^0 using Initial State Radiation with BaBar (open access)

Study ofe+e- to Lambda anti-Lambda, Lambda anti-Sigma^0,Sigma^0 anti-Sigma^0 using Initial State Radiation with BaBar

We study the e+e- --> Lambda anti-Lambda gamma, Lambda anti-Sigma0 gamma, Sigma0 anti-Sigma0 gamma processes using 230 fb-1 of integrated luminosity collected by the BaBar detector at e+e- center-of-mass energy of 10.58 GeV. From the analysis of the baryon-antibaryon mass spectra the cross sections for e+e- --> Lambda anti-Lambda, Lambda anti-Sigma0, Sigma0 anti-Sigma0 are measured in the dibaryon mass range from threshold up to 3 GeV/c{sup 2}. The ratio of electric and magnetic form factors, |G{sub E}/G{sub M}|, is measured for e+e- --> Lambda anti-Lambda, and limits on the relative phase between Lambda form factors are obtained. We also measure the J/psi --> Lambda anti-Lambda, Sigma0 anti-Sigma0 and psi(2S) --> Lambda anti-Lambda branching fractions.
Date: September 14, 2007
Creator: Aubert, B.
Object Type: Article
System: The UNT Digital Library
Observation of the Semileptonic Decays B to D*taunu and Evidence for B to D tau nu (open access)

Observation of the Semileptonic Decays B to D*taunu and Evidence for B to D tau nu

We present measurements of the semileptonic decays B{sup -} {yields} D{sup 0}{tau}{sup -}{bar {nu}}{sub {tau}}, B{sup -} {yields} D{sup *0}{tau}{sup -}{bar {nu}}{sub {tau}}, B{sup -} {yields} D{sup +}{tau}{sup -}{bar {nu}}{sub {tau}}, and B{sup -} {yields} D{sup *+}{tau}{sup -}{bar {nu}}{sub {tau}}, which are potentially sensitive to non-Standard Model amplitudes, The data sample comprises 232 x 10{sup 6} {Upsilon}(4s) {yields} B{bar B} decays collected with the BABAR detector. From a combined fit to B{sup -} and {bar B}{sup 0} channels, we obtain the branching fractions {beta}(B {yields} D{sub {tau}}{sup -}{bar {nu}}{sub {tau}}) = (0:86 {+-} 0:24 {+-} 0:11 {+-} 0:06)% and {beta}(B {yields} D*{tau}{sup -}{bar {nu}}{sub {tau}}) = (1:62 {+-} 0:31 {+-} 0:10 {+-} 0:05)% (normalized for the {bar B}{sup 0}), , where the uncertainties are statistical, systematic, and normalization-mode-related.
Date: September 14, 2007
Creator: B., Aubert
Object Type: Article
System: The UNT Digital Library
Technical Support Document for Version 3.4.0 of the COMcheck Software (open access)

Technical Support Document for Version 3.4.0 of the COMcheck Software

COMcheck provides an optional way to demonstrate compliance with commercial and high-rise residential building energy codes. Commercial buildings include all use groups except single family and multifamily not over three stories in height. COMcheck was originally based on ANSI/ASHRAE/IES Standard 90.1-1989 (Standard 90.1-1989) requirements and is intended for use with various codes based on Standard 90.1, including the Codification of ASHRAE/IES Standard 90.1-1989 (90.1-1989 Code) (ASHRAE 1989a, 1993b) and ASHRAE/IESNA Standard 90.1-1999 (Standard 90.1-1999). This includes jurisdictions that have adopted the 90.1-1989 Code, Standard 90.1-1989, Standard 90.1-1999, or their own code based on one of these. We view Standard 90.1-1989 and the 90.1-1989 Code as having equivalent technical content and have used both as source documents in developing COMcheck. This technical support document (TSD) is designed to explain the technical basis for the COMcheck software as originally developed based on the ANSI/ASHRAE/IES Standard 90.1-1989 (Standard 90.1-1989). Documentation for other national model codes and standards and specific state energy codes supported in COMcheck has been added to this report as appendices. These appendices are intended to provide technical documentation for features specific to the supported codes and for any changes made for state-specific codes that differ from the standard features that …
Date: September 14, 2007
Creator: Bartlett, Rosemarie; Connell, Linda M.; Gowri, Krishnan; Halverson, Mark A.; Lucas, Robert G.; Richman, Eric E. et al.
Object Type: Report
System: The UNT Digital Library
Tantalum Shear Modulus from Homogenization of Single Crystal Data (open access)

Tantalum Shear Modulus from Homogenization of Single Crystal Data

Elastic constants for tantalum single crystals have been calculated by Orlikowski, et al. [1] for a broad range of temperatures and pressures. These moduli can be utilized directly in continuum crystal simulations or dislocation dynamics calculations where the individual grains of the polycrystalline material are explicitly represented. For simulations on a larger size scale, the volume of material represented by the quadrature points of the simulation codes includes many grains, and average moduli are needed. Analytic bounding and averaging schemes exist, but since these do not account for nonuniform stress and strain within the interacting grains, the upper and lower bounds tend to diverge as the crystal anisotropy increases. Local deformation and stress equilibrium accommodate the anisotropic response of the individual grains. One method of including grain interactions in shear modulus averaging calculations is through a highly-descretized finite element model of a polycrystal volume. This virtual test sample (VTS) can be probed to determine the average response of the polycrystal. The desire to obtain isotropic moduli imposes attributes on the VTS. The grains should be equiax and the crystal orientation distribution function should be random. For these simulations, a cube, 300 {micro}m on a side, was discretized with 1 million …
Date: September 14, 2007
Creator: Becker, R
Object Type: Report
System: The UNT Digital Library
Afghanistan: Narcotics and U.S. Policy (open access)

Afghanistan: Narcotics and U.S. Policy

This report provides current statistical information, profiles the Afghanistan narcotics trade's participants, explores linkages between narcotics, insecurity, and corruption, and reviews U.S. and international policy responses since late 2001. The report also considers ongoing policy debates regarding the counternarcotics role of coalition military forces, poppy eradication, alternative livelihoods, and funding issues for Congress.
Date: September 14, 2007
Creator: Blanchard, Christopher M.
Object Type: Report
System: The UNT Digital Library
Perry Daily Journal (Perry, Okla.), Vol. 115, No. 178, Ed. 1 Friday, September 14, 2007 (open access)

Perry Daily Journal (Perry, Okla.), Vol. 115, No. 178, Ed. 1 Friday, September 14, 2007

Daily newspaper from Perry, Oklahoma that includes local, state, and national news along with advertising.
Date: September 14, 2007
Creator: Brown, Gloria
Object Type: Newspaper
System: The Gateway to Oklahoma History
The Altus Times (Altus, Okla.), Vol. 109, No. 90, Ed. 1 Friday, September 14, 2007 (open access)

The Altus Times (Altus, Okla.), Vol. 109, No. 90, Ed. 1 Friday, September 14, 2007

Daily newspaper from Altus, Oklahoma that includes local, state, and national news along with advertising.
Date: September 14, 2007
Creator: Bush, Michael
Object Type: Newspaper
System: The Gateway to Oklahoma History
The Boerne Star & Recorder (Boerne, Tex.), Vol. 101, No. 74, Ed. 1 Friday, September 14, 2007 (open access)

The Boerne Star & Recorder (Boerne, Tex.), Vol. 101, No. 74, Ed. 1 Friday, September 14, 2007

Semiweekly newspaper from Boerne, Texas that includes local, state, and national news along with advertising.
Date: September 14, 2007
Creator: Cartwright, Brian
Object Type: Newspaper
System: The Portal to Texas History
The Baytown Sun (Baytown, Tex.), Vol. 86, No. 290, Ed. 1 Friday, September 14, 2007 (open access)

The Baytown Sun (Baytown, Tex.), Vol. 86, No. 290, Ed. 1 Friday, September 14, 2007

Daily newspaper from Baytown, Texas that includes local, state, and national news along with advertising.
Date: September 14, 2007
Creator: Clements, Clifford E.
Object Type: Newspaper
System: The Portal to Texas History
LLNL Facility Screening Report (SCR) for B362 (open access)

LLNL Facility Screening Report (SCR) for B362

None
Date: September 14, 2007
Creator: Cooper, G
Object Type: Report
System: The UNT Digital Library
Dallas Voice (Dallas, Tex.), Volume 24, Issue 18, September 2007 (open access)

Dallas Voice (Dallas, Tex.), Volume 24, Issue 18, September 2007

Weekly newspaper from Dallas, Texas that includes local, state, and national news and advertising of interest to the Lesbian, Gay, Bisexual, and Transgender (LGBT) community.
Date: September 14, 2007
Creator: Dallas Voice
Object Type: Journal/Magazine/Newsletter
System: The UNT Digital Library
Beyond Structural Genomics for Plant Science (open access)

Beyond Structural Genomics for Plant Science

This book chapter provides an overview of the genomics and postgenomic technologies that are likely to have the greatest impacts on agronomy over the next 10-20 years and describes a number of case studies of their application.
Date: September 14, 2007
Creator: Dixon, R. A.; Bouton, Joseph H. (Joseph Henry), 1948-; Narasimhamoorthy, Brindha; Saha, Malay; Wang, Z.-Y. (Zeng-Yu), 1963- & May, Gregory D.
Object Type: Book Chapter
System: The UNT Digital Library

[Librarian reading "Dinosaur Roar!"]

Photograph of a librarian reading a picture book titled "Dinosaur Roar!" during the Denton North Branch's Story Time. Parents and their children are sitting on the carpet in front of her and behind her is a whiteboard and other books. Another librarian is playing an acoustic guitar to the side.
Date: September 14, 2007
Creator: Evans, Rebecca
Object Type: Photograph
System: The UNT Digital Library

[Librarian reading "Dinosaur Roar!"]

Photograph of a librarian reading a picture book titled "Dinosaur Roar!" during the Denton North Branch's Story Time. Parents and their children are sitting on the carpet in front of her and behind her is a whiteboard and other books. Another librarian is playing an acoustic guitar to the side.
Date: September 14, 2007
Creator: Evans, Rebecca
Object Type: Photograph
System: The UNT Digital Library

[Librarian with owl puppet]

Photograph of a librarian using a large and fluffy owl puppet during Story Time at the Denton North Library. Parents are sitting with their kids on the carpet in front of them and there is a whiteboard behind the librarians at the front.
Date: September 14, 2007
Creator: Evans, Rebecca
Object Type: Photograph
System: The UNT Digital Library

[Librarians singing at Story Time]

Photograph of librarians singing and miming with their hands during the Denton North Branch's Story Time. Parents and their children are sitting on the carpet in front of them and behind them is a whiteboard and illustrated books about dinosaurs.
Date: September 14, 2007
Creator: Evans, Rebecca
Object Type: Photograph
System: The UNT Digital Library

[Parents with children at Story Time]

Photograph of families gathered in a carpeted room in the North Branch of Denton Library for Story Time. Moms are sitting with their kids in their laps and some kids are sitting on their own. There is also a stroller by the wall.
Date: September 14, 2007
Creator: Evans, Rebecca
Object Type: Photograph
System: The UNT Digital Library
The Sloan Digital Sky Survey-II Supernova Survey: Technical Summary (open access)

The Sloan Digital Sky Survey-II Supernova Survey: Technical Summary

The Sloan Digital Sky Survey-II (SDSS-II) has embarked on a multi-year project to identify and measure light curves for intermediate-redshift (0.05 < z < 0.35) Type Ia supernovae (SNe Ia) using repeated five-band (ugriz) imaging over an area of 300 sq. deg. The survey region is a stripe 2.5 degrees wide centered on the celestial equator in the Southern Galactic Cap that has been imaged numerous times in earlier years, enabling construction of a deep reference image for discovery of new objects. Supernova imaging observations are being acquired between 1 September and 30 November of 2005-7. During the first two seasons, each region was imaged on average every five nights. Spectroscopic follow-up observations to determine supernova type and redshift are carried out on a large number of telescopes. In its first two three-month seasons, the survey has discovered and measured light curves for 327 spectroscopically confirmed SNe Ia, 30 probable SNe Ia, 14 confirmed SNe Ib/c, 32 confirmed SNe II, plus a large number of photometrically identified SNe Ia, 94 of which have host-galaxy spectra taken so far. This paper provides an overview of the project and briefly describes the observations completed during the first two seasons of operation.
Date: September 14, 2007
Creator: Frieman, Joshua A.; Bassett, Bruce; Becker, Andrew; Choi, Changsu; Cinabro, David; DeJongh, Don Frederic et al.
Object Type: Article
System: The UNT Digital Library
Line Emission from Optically Thick RelativisticAccretion Tori (open access)

Line Emission from Optically Thick RelativisticAccretion Tori

We calculate line emission from relativistic accretion tori around Kerr black holes and investigate how the line profiles depend on the viewing inclination, spin of the central black hole, parameters describing the shape of the tori, and spatial distribution of line emissivity on the torus surface. We also compare the lines with those from thin accretion disks. Our calculations show that lines from tori and lines from thin disks share several common features. In particular, at low and moderate viewing inclination angles they both have asymmetric double-peaked profiles with a tall, sharp blue peak and a shorter red peak which has an extensive red wing. At high viewing inclination angles they both have very broad, asymmetric lines which can be roughly considered as single-peaked. Torus and disk lines may show very different red and blue line wings, but the differences are due to the models for relativistic tori and disks having differing inner boundary radii. Self-eclipse and lensing play some role in shaping the torus lines, but they are effective only at high inclination angles. If inner and outer radii of an accretion torus are the same as those of an accretion disk, their line profiles show substantial differences only …
Date: September 14, 2007
Creator: Fuerst, Steven V.; /KIPAC, Menlo Park /Mullard Space Sci. Lab.; Wu, Kinwah & Lab., /Mullard Space Sci.
Object Type: Article
System: The UNT Digital Library

Why the Time is Right to Deploy Alternative Fuels

Presentation outlines industry trends and statistics that show why now is the time to deploy alternative fuels and vehicles.
Date: September 14, 2007
Creator: Harrow, G.
Object Type: Presentation
System: The UNT Digital Library
Searching for Inflation in Simple String TheoryModels: An Sstrophysical Perspective (open access)

Searching for Inflation in Simple String TheoryModels: An Sstrophysical Perspective

None
Date: September 14, 2007
Creator: Hertzberg, Mark P.; Tegmark, Max; /MIT; Kachru, Shamit; /Stanford U., Phys. Dept. /SLAC; Shelton, Jessie et al.
Object Type: Article
System: The UNT Digital Library
Consumer Bankruptcy and Household Debt (open access)

Consumer Bankruptcy and Household Debt

This report provides information about the Consumer Bankruptcy and Household Debt. The principal impetus behind bankruptcy reform is high number of consumer bankruptcy filings which in 2005 and 2006 reached five times more than in 1980's.
Date: September 14, 2007
Creator: Jickling, Mark
Object Type: Report
System: The UNT Digital Library
Calculation of the Thermal Footprint of Resonant Magnetic Perturbations in DIII-D (open access)

Calculation of the Thermal Footprint of Resonant Magnetic Perturbations in DIII-D

The effect of resonant magnetic perturbations on heat transport in DIII-D H-mode plasmas has been calculated by combining the TRIP3D field-line tracing code with the E3D two-fluid transport code. Simulations show that the divertor heat flux distribution becomes non-axisymmetric because heat flux is efficiently guided to the divertor along the three-dimensional invariant manifolds of the magnetic field. Calculations demonstrate that heat flux is spread over a wider area of the divertor target, thereby reducing the peak heat flux delivered during steady-state operation. Filtered optical cameras have observed non-axisymmetric particle fluxes at the strike-point and Langmuir probes have observed non-axisymmetric floating potentials. On the other hand, the predicted magnitude of stochastic thermal transport is too large to match the pedestal plasma profiles measured by Thomson scattering and charge exchange recombination spectroscopy. The Braginskii thermal conductivity overestimates the expected heat transport in the pedestal because the mean free path is longer than estimates of the parallel thermal correlation length, and collisionless transport models are probably required for accurate description. However, even the collisionless estimates for electron thermal transport are too large by one to two orders of magnitude. Thus, it is likely that another mechanism such as rotational screening of resonant perturbations …
Date: September 14, 2007
Creator: Joseph, I; Evans, T; Moyer, R; Fenstermacher, M; Groth, M; Kasilov, S et al.
Object Type: Article
System: The UNT Digital Library
Structural Genomics of Minimal Organisms: Pipeline and Results (open access)

Structural Genomics of Minimal Organisms: Pipeline and Results

The initial objective of the Berkeley Structural Genomics Center was to obtain a near complete three-dimensional (3D) structural information of all soluble proteins of two minimal organisms, closely related pathogens Mycoplasma genitalium and M. pneumoniae. The former has fewer than 500 genes and the latter has fewer than 700 genes. A semiautomated structural genomics pipeline was set up from target selection, cloning, expression, purification, and ultimately structural determination. At the time of this writing, structural information of more than 93percent of all soluble proteins of M. genitalium is avail able. This chapter summarizes the approaches taken by the authors' center.
Date: September 14, 2007
Creator: Kim, Sung-Hou; Shin, Dong-Hae; Kim, Rosalind; Adams, Paul & Chandonia, John-Marc
Object Type: Book
System: The UNT Digital Library