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United States Census Map Collection
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Office of Scientific & Technical Information Technical Reports
5,628
USGS Topographic Map Collection
4,340
Congressional Research Service Reports
2,321
Government Accountability Office Reports
745
Texas State Publications
556
Federal Register
249
Texas Attorney General Opinions
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Grade-Level Retention in Texas Public Schools: 2008-2009, District Supplement
"This supplement to the annual Texas Education Agency report on grade-level retention in Texas public schools provides data by district and grade and by district characteristic for the 2008-09 school year."
Date:
November 2010
Creator:
Texas Education Agency. Division of Accountability Research.
Object Type:
Report
System:
The Portal to Texas History
Grade-Level Retention in Texas Public Schools: 2008-2009
Annual report of compiled data regarding student retention in Texas public schools, broken down by grade levels, various demographic criteria, and participation in special programs, as well as information regarding data collection and analysis.
Date:
November 2010
Creator:
Texas Education Agency. Division of Accountability Research.
Object Type:
Report
System:
The Portal to Texas History
Grade-Level Retention in Texas Public Schools: 2007-2008
Annual report of compiled data regarding student retention in Texas public schools, broken down by grade levels, various demographic criteria, and participation in special programs, as well as information regarding data collection and analysis.
Date:
March 2010
Creator:
Texas Education Agency. Division of Accountability Research.
Object Type:
Report
System:
The Portal to Texas History
Enrollment in Texas Public Schools: 2009-2010
Partial abstract: This report provides information on enrollment in the Texas public school system from the 1999-00 through 2009-10 school years, based on data collected through the Texas Public Education Information Management System. Enrollment data are provided by grade, race/ethnicity, gender, and economically disadvantaged status, and for special populations and instructional programs. (p. ii).
Date:
September 2010
Creator:
Texas Education Agency. Division of Accountability Research.
Object Type:
Report
System:
The Portal to Texas History
Proposed Amendments to the Toxic Substances Control Act (TSCA): A Side-by-Side Comparison with Current Law
None
Date:
July 28, 2010
Creator:
Schierow, Linda-Jo
Object Type:
Report
System:
The UNT Digital Library
Selected Church-State Issues in Elementary and Secondary Education
None
Date:
October 1, 2010
Creator:
Brougher, Cynthia & Skinner, Rebecca R.
Object Type:
Report
System:
The UNT Digital Library
The SAFRA Act: Education Programs in the FY2010 Budget Reconciliation
None
Date:
April 14, 2010
Creator:
Dortch, Cassandria; Smole, David P. & Mahan, Shannon M.
Object Type:
Report
System:
The UNT Digital Library
Federal Register, Volume 75, Number 128, July 6, 2010, Pages 38693-38914
Daily publication of the U.S. Office of the Federal Register contains rules and regulations, proposed legislation and rule changes, and other notices, including "Presidential proclamations and Executive Orders, Federal agency documents having general applicability and legal effect, documents required to be published by act of Congress, and other Federal agency documents of public interest" (p. ii). Table of Contents starts on page iii.
Date:
July 6, 2010
Creator:
United States. Office of the Federal Register.
Object Type:
Journal/Magazine/Newsletter
System:
The UNT Digital Library
Federal Register, Volume 75, Number 131, July 9, 2010, Pages 39443-39628
Daily publication of the U.S. Office of the Federal Register contains rules and regulations, proposed legislation and rule changes, and other notices, including "Presidential proclamations and Executive Orders, Federal agency documents having general applicability and legal effect, documents required to be published by act of Congress, and other Federal agency documents of public interest" (p. ii). Table of Contents starts on page iii.
Date:
July 9, 2010
Creator:
United States. Office of the Federal Register.
Object Type:
Journal/Magazine/Newsletter
System:
The UNT Digital Library
The LIHEAP Formula: Legislative History and Current Law
This Congressional Research Service Report for Congress contains information about the Low Income Home Energy Assistance Program (LIHEAP). LIHEAP provides funds to states, the District of Colombia, U.S territories and commonwealths, and Indian tribal organizations (collectively referred to as grantees) primary to help low-income households pay home energy expenses.
Date:
September 8, 2010
Creator:
Peral, Libby
Object Type:
Report
System:
The UNT Digital Library
Land and Water Conservation Fund: Overview, Funding History, and Issues
This Congressional Research Service Report for Congress includes a description of the Land and Water Conservation Fund Act of 1965 along with the purposes, history, and current issues regarding the act.
Date:
August 13, 2010
Creator:
Vincent, Carol Hardy
Object Type:
Report
System:
The UNT Digital Library
Quest, Volume 2, Number 2, September 2010
A newsletter providing information on various scientific projects and research from the Texas A&M University system.
Date:
September 2010
Creator:
Texas A & M University System
Object Type:
Journal/Magazine/Newsletter
System:
The Portal to Texas History
Forest Stewardship Briefings, May 2010
Newsletter providing brief updates on various programs and topics related to the Texas Forestry Service.
Date:
May 2010
Creator:
Texas Forest Service
Object Type:
Journal/Magazine/Newsletter
System:
The Portal to Texas History
Measurement of CP observables in B__ ->D_CPK__ decays and constraints on the CKM angle gamma
Using the entire sample of 467 million {Upsilon}(4S) {yields} B{bar B} decays collected with the BABAR detector at the PEP-II asymmetric-energy B factory at SLAC, we perform a 'GLW' analysis of B{sup {+-}} {yields} D{sup {+-}} decays, using decay modes in which the neutral D meson decays to either CP-eigenstates or non-CP-eigenstates. We measure the partial decay rate charge asymmetries for CP-even and CP-odd D final states to be A{sub CP+} = 0.25 {+-} 0.06 {+-} 0.02 and A{sub CP-} = -0.09 {+-} 0.07 {+-} 0.02, respectively, where the first error is the statistical and the second is the systematic uncertainty. The parameter A{sub CP+} is different from zero with a significance of 3.6 standard deviations, constituting evidence for direct CP violation. We also measure the ratios of the charged-averaged B partial decay rates in CP and non-CP decays, R{sub CP+} = 1.18 {+-} 0.09 {+-} 0.05 and R{sub CP-} = 1.07 {+-} 0.08 {+-} 0.04. We infer frequentist confidence intervals for the angle {gamma} of the (db) unitarity triangle, for the strong phase difference {delta}{sub B}, and for the amplitude ratio r{sub B}, which are related to the B{sup -} {yields} D{sup -} decay amplitude by r{sub B}e{sup i({delta}{sub …
Date:
August 25, 2010
Creator:
del Amo Sanchez, P.; Lees, J. P.; Poireau, V.; Prencipe, E.; Tisserand, V.; Garra Tico, J. et al.
Object Type:
Article
System:
The UNT Digital Library
Measurement of the gamma gamma* to eta_c transition form factor
The authors study the reaction e{sup +}e{sup -} {yields} e{sup +}e{sup -} {eta}{sub c}, {eta}{sub c} {yields} K{sub S}K{sup {+-}}{pi}{sup {-+}} and obtain {eta}{sub c} mass and width values 2982.2 {+-} 0.4 {+-} 1.6 MeV/c{sup 2} and 31.7 {+-} 1.2 {+-} 0.8 MeV, respectively. They find {Lambda}({eta}{sub c} {yields} {gamma}{gamma}){Beta}({eta}{sub c} {yields} K{bar K}{pi}) = 0.374 {+-} 0.009 {+-} 0.031 keV, and measure the {gamma}{gamma}* {yields} {eta}{sub c} transition form factor in the momentum transfer range from 2 to 50 GeV{sup 2}. The analysis is based on 469 fb{sup -1} of integrated luminosity collected at PEP-II with the BABAR detector at e{sup +}e{sup -} center-of-mass energies near 10.6 GeV.
Date:
April 28, 2010
Creator:
Lees, J. P.; Poireau, V.; Prencipe, E.; Tisserand, V.; Garra Tico, J.; Grauges, E. et al.
Object Type:
Article
System:
The UNT Digital Library
Measurement of the Branching Fraction for D8+ rarr tau+nu_tau and Extraction of the Decay Constant f_D_s
The branching fraction for the decay D{sub s}{sup +} {yields} {tau}{sup +}{nu}{sub {tau}} with {tau}{sup +} {yields} e{sup +}{bar {nu}}{sub {tau}}, is measured using a data sample corresponding to an integrated luminosity of 427 fb{sup -1} collected at center of mass energies near 10.58 GeV with the BABAR detector at the PEP-II asymmetric-energy e{sup +}e{sup -} collider at SLAC. In the process e{sup +}e{sup -} {yields} c{bar c} {yields} D*{sub s}{sup +} {bar D}{sub TAG}{bar K}X, the D*{sub s}{sup +} meson is reconstructed as a missing particle, and the subsequent decay D*{sub s}{sup +} {yields} D{sub s}{sup +}{gamma} yields an inclusive D{sub s}{sup +} data sample. Here {bar D}{sub TAG} refers to a fully reconstructed hadronic {bar D} decay, {bar K} is a K{sup -} or {bar K}{sup 0}, and X stands for any number of charged or neutral pions. The decay D{sub s}{sup +} {yields} K{sub S}{sup 0}K{sup +} is isolated also, and from ratio of event yields and known branching fractions, {Beta}(D{sub s}{sup +} {yields} {tau}{sup +}{nu}{sub {tau}}) = (4.5 {+-} 0.5 {+-} 0.4 {+-} 0.3)% is determined. The pseudoscalar decay constant is extracted to be f{sub D{sub s}} = (233 {+-} 13 {+-} 10 {+-} 7) MeV, …
Date:
June 4, 2010
Creator:
Lees, J. P.; Poireau, V.; Prencipe, E.; Tisserand, V.; Garra Tico, J.; Grauges, E. et al.
Object Type:
Report
System:
The UNT Digital Library
First Measurement of Bose-Einstein Correlations in Proton-Proton Collisions at $\sqrt{s}=0.9$ and 2.36 TeV at the LHC
Bose-Einstein correlations have been measured using samples of proton-proton collisions at 0.9 and 2.36 TeV center-of-mass energies, recorded by the CMS experiment at the CERN Large Hadron Collider. The signal is observed in the form of an enhancement of pairs of same-sign charged particles with small relative four-momentum. The size of the correlated particle emission region is seen to increase significantly with the particle multiplicity of the event.
Date:
May 1, 2010
Creator:
Khachatryan, Vardan; Sirunyan, Albert M.; Tumasyan, Armen; Adam, Wolfgang; Bergauer, Thomas; Dragicevic, Marko et al.
Object Type:
Article
System:
The UNT Digital Library
Single-Sector Supersymmetry Breaking in Supersymmetric QCD
We construct examples of single-sector supersymmetry breaking based on simple deformations of supersymmetric QCD with (weakly) gauged flavor group. These theories are calculable in a weakly coupled Seiberg dual description. In these models, some of the particles in the first two generations of quarks and leptons are composites of the same strong dynamics which leads to dynamical supersymmetry breaking. Such models can explain the hierarchies of Yukawa couplings in the Standard Model, in a way that predictively correlates with the spectrum of SUSY-breaking soft terms.
Date:
August 26, 2010
Creator:
Franco, Sebastian & Kachru, Shamit
Object Type:
Article
System:
The UNT Digital Library
Dual Purpose Landscaping Tools: Small Extra Dimensions in AdS/CFT
We propose a class of AdS/CFT dual pairs which have small internal dimensions on the gravity side. Starting from known Freund-Rubin AdS/CFT dual pairs, we use 7-branes to nearly cancel the curvature energy of the internal dimensions while maintaining their stabilization. This leads to a new corner of the landscape - a class of AdS solutions with a hierarchically large AdS radius - with a dual field theory given (implicitly) by the infrared limit of a concrete brane construction involving D3-branes, 7-branes, and curvature. We first construct a class of hierarchical AdS5/CFT4 dual pairs with a simple formula for the number of degrees of freedom which we interpret in the dual QFT. We then generalize these to AdS4/CFT3 duals, and suggest extensions of the method to obtain de Sitter solutions.
Date:
August 26, 2010
Creator:
Polchinski, Joseph & Silverstein, Eva
Object Type:
Report
System:
The UNT Digital Library
'Dynamical Supersymmetry Breaking, with Flavor'
We explore calculable models with low-energy supersymmetry where the flavor hierarchy is generated by quark and lepton compositeness, and where the composites emerge from the same sector that dynamically breaks supersymmetry. The observed pattern of Standard Model fermion masses and mixings is obtained by identifying the various generations with composites of different dimension in the ultraviolet. These 'single-sector' supersymmetry breaking models give rise to various spectra of soft masses which are, in many cases, quite distinct from what is commonly found in models of gauge or gravity mediation. In typical models which satisfy all flavor-changing neutral current constraints, both the first and second generation sparticles have masses of order 20 TeV, while the stop mass is a few TeV. In other cases, all sparticles obtain masses of order a few TeV predominantly from gauge mediation, even though the first two generations are composite.
Date:
August 26, 2010
Creator:
Craig, Nathaniel; Essig, Rouven; Franco, Sebastian; Kachru, Shamit & Torroba, Gonzalo
Object Type:
Article
System:
The UNT Digital Library
Exclusive Production of Ds Ds-, Ds* Ds-, and Ds* Ds*- via e e- Annihilation with Initial-State-Radiation
The authors perform a study of exclusive production of D{sub s}{sup +}D{sub s}{sup -}, D*{sub s}{sup +}D{sub s}{sup -}, and D*{sub s}{sup +}D*{sub s}{sup -} final states in initial-state-radiation events from e{sup +}e{sup -} annihilations at a center-of-mass energy near 10.58 GeV, to search for charmonium 1{sup --} states. The data sample corresponds to an integrated luminosity of 525 fb{sup -1} and was recorded by the BABAR experiment at the PEP-II storage ring. The D{sub s}{sup +} D{sub s}{sup -}, D*{sub s}{sup +}D{sub s}{sup -}, and D*{sub s}{sup +}D*{sub s}{sup -} mass spectra show evidence of the known {psi} resonances. Limits are extracted for the branching ratios of the decays X(4260) {yields} D{sub s}{sup (*)+}D{sub s}{sup (*)-}.
Date:
October 27, 2010
Creator:
del Amo Sanchez, P.; Lees, J. P.; Poireau, V.; Prencipe, E.; Tisserand, V.; Garra Tico, J. et al.
Object Type:
Article
System:
The UNT Digital Library
Measurement of CP violation observables and parameters for the decays $B^{\pm}\to DK^{*\pm}$
We study the decay B{sup -} {yields} DK*{sup -} using a sample of 379 x 10{sup 6} {Upsilon}(4S) {yields} B{bar B} events collected with the BABAR detector at the PEP-II B-factory. We perform a 'GLW' analysis where the D meson decays into either a CP-even (CP+) eigenstate (K{sup +}K{sup -}, {pi}{sup +}{pi}{sup -}), CP-odd (CP-) eigenstate (K{sub S}{sup 0}{pi}{sup 0}, K{sub S}{sup 0}{phi}, K{sub S}{sup 0}{omega}) or a non-CP state (K{sup -}{pi}{sup +}). We also analyze D meson decays into K{sup +}{pi}{sup -} from a Cabibbo-favored {bar D}{sup 0} decay or doubly suppressed D{sup 0} decay ('ADS' analysis). We measure observables that are sensitive to the CKM angle {gamma}: the partial-rate charge asymmetries A{sub CP{+-}}, the ratios R{sub CP{+-}} of the B-decay branching fractions in CP{+-} and non-CP decay, the ratio R{sub ADS} of the charge-averaged branching fractions, and the charge asymmetry A{sub ADS} of the ADS decays: A{sub CP+} = 0.09 {+-} 0.13 {+-} 0.06, A{sub CP-} = -0.23 {+-} 0.21 {+-} 0.07, R{sub CP+} = 2.17 {+-} 0.35 {+-} 0.09, R{sub CP-} = 1.03 {+-} 0.27 {+-} 0.13, R{sub ADS} = 0.066 {+-} 0.031 {+-} 0.010, and A{sub ADS} = -0.34 {+-} 0.43 {+-} 0.16, where the first …
Date:
August 26, 2010
Creator:
Aubert, Bernard; Karyotakis, Y.; Lees, J. P.; Poireau, V.; Prencipe, E.; Prudent, X. et al.
Object Type:
Article
System:
The UNT Digital Library
Flavor Physics in the Quark Sector
In the past decade, one of the major challenges of particle physics has been to gain an in-depth understanding of the role of quark flavor. In this time frame, measurements and the theoretical interpretation of their results have advanced tremendously. A much broader understanding of flavor particles has been achieved, apart from their masses and quantum numbers, there now exist detailed measurements of the characteristics of their interactions allowing stringent tests of Standard Model predictions. Among the most interesting phenomena of flavor physics is the violation of the CP symmetry that has been subtle and difficult to explore. In the past, observations of CP violation were confined to neutral K mesons, but since the early 1990s, a large number of CP-violating processes have been studied in detail in neutral B mesons. In parallel, measurements of the couplings of the heavy quarks and the dynamics for their decays in large samples of K,D, and B mesons have been greatly improved in accuracy and the results are being used as probes in the search for deviations from the Standard Model. In the near future, there will be a transition from the current to a new generation of experiments, thus a review of …
Date:
August 26, 2010
Creator:
Antonelli, Mario; Asner, David Mark; Bauer, Daniel Adams; Becher, Thomas G.; Beneke, M.; Bevan, Adrian John et al.
Object Type:
Article
System:
The UNT Digital Library
Search for B-meson decays to b1rho and b1K___
We present a search for decays of B mesons to final states with a b{sub 1} meson and a {rho} or K*(892) meson. The search is based on a data sample consisting of 465 million B{bar B} pairs collected by the BABAR detector at the SLAC National Accelerator Laboratory. We do not observe any statistically significant signal. The upper limits we set on the branching fractions range from 1.4 to 8.0 x 10{sup -6} at the 90% confidence level (C.L.), including systematic uncertainties.
Date:
June 11, 2010
Creator:
Aubert, Bernard; Karyotakis, Y.; Lees, J. P.; Poireau, V.; Prencipe, E.; Prudent, X. et al.
Object Type:
Article
System:
The UNT Digital Library