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Measurement of the B -> Omega l Nu and B -> Eta l Nu Branching Fractions Using Neutrino Reconstruction (open access)

Measurement of the B -> Omega l Nu and B -> Eta l Nu Branching Fractions Using Neutrino Reconstruction

The authors present a study of the charmless semileptonic B-meson decays B{sup +} {yields} {omega}{ell}{sup +}{nu} and B{sup +} {yields} {eta}{ell}{sup +}{nu}. The analysis is based on 383 million B{bar B} pairs recorded at the {Upsilon}(4S) resonance with the BABAR detector. The {omega} mesons are reconstructed in the channel {omega} {yields} {pi}{sup +}{pi}{sup -}{pi}{sup 0} and the {eta} mesons in the channels {eta} {yields} {pi}{sup +}{pi}{sup -}{pi}{sup 0} and {eta} {yields} {gamma}{gamma}. They measure the branching fractions {Beta}(B{sup +} {yields} {omega}{ell}{sup +}{nu}) = (1.14 {+-} 0.16{sub stat} {+-} 0.08{sub syst}) x 10{sup -4} and {Beta}(B{sup +} {yields} {eta}{ell}{sup +}{nu}) = (0.31 {+-} 0.06{sub stat} {+-} 0.08{sub syst}) x 10{sup -4}.
Date: September 9, 2008
Creator: Aubert, Bernard; Bona, M.; Karyotakis, Y.; Lees, J. P.; Poireau, V.; Prencipe, E. et al.
Object Type: Article
System: The UNT Digital Library
Hierarchical Material Models for Modeling Fragmentation of Targets in Inertial Confinement Fusion Reseach (open access)

Hierarchical Material Models for Modeling Fragmentation of Targets in Inertial Confinement Fusion Reseach

None
Date: September 9, 2008
Creator: Benson, D.; Dixit, P.; Koniges, A.; Fisher, A.; Masters, N. D.; Anderson, R. W. et al.
Object Type: Article
System: The UNT Digital Library
Perry Daily Journal (Perry, Okla.), Vol. 116, No. 178, Ed. 1 Tuesday, September 9, 2008 (open access)

Perry Daily Journal (Perry, Okla.), Vol. 116, No. 178, Ed. 1 Tuesday, September 9, 2008

Daily newspaper from Perry, Oklahoma that includes local, state, and national news along with advertising.
Date: September 9, 2008
Creator: Brown, Gloria
Object Type: Newspaper
System: The Gateway to Oklahoma History
The Altus Times (Altus, Okla.), Vol. 110, No. 32, Ed. 1 Tuesday, September 9, 2008 (open access)

The Altus Times (Altus, Okla.), Vol. 110, No. 32, Ed. 1 Tuesday, September 9, 2008

Daily newspaper from Altus, Oklahoma that includes local, state, and national news along with advertising.
Date: September 9, 2008
Creator: Bush, Michael
Object Type: Newspaper
System: The Gateway to Oklahoma History
The Boerne Star (Boerne, Tex.), Vol. 102, No. 73, Ed. 1 Tuesday, September 9, 2008 (open access)

The Boerne Star (Boerne, Tex.), Vol. 102, No. 73, Ed. 1 Tuesday, September 9, 2008

Semiweekly newspaper from Boerne, Texas that includes local, state, and national news along with advertising.
Date: September 9, 2008
Creator: Cartwright, Brian
Object Type: Newspaper
System: The Portal to Texas History
Vacuum Systems Consensus Guideline for Department of Energy Accelerator Laboratories (open access)

Vacuum Systems Consensus Guideline for Department of Energy Accelerator Laboratories

Vacuum vessels, including evacuated chambers and insulated jacketed dewars, can pose a potential hazard to equipment and personnel from collapse, rupture due to back-fill pressurization, or implosion due to vacuum window failure. It is therefore important to design and operate vacuum systems in accordance with applicable and sound engineering principles. 10 CFR 851 defines requirements for pressure systems that also apply to vacuum vessels subject to back-fill pressurization. Such vacuum vessels are potentially subject to the requirements of the American Society of Mechanical Engineers (ASME) Pressure Vessel Code Section VIII (hereafter referred to as the 'Code'). However, the scope of the Code excludes vessels with internal or external operating pressure that do not exceed 15 pounds per square inch gauge (psig). Therefore, the requirements of the Code do not apply to vacuum systems provided that adequate pressure relief assures that the maximum internal pressure within the vacuum vessel is limited to less than 15 psig from all credible pressure sources, including failure scenarios. Vacuum vessels that cannot be protected from pressurization exceeding 15 psig are subject to the requirements of the Code. 10 CFR 851, Appendix A, Part 4, Pressure Safety, Section C addresses vacuum system requirements for such cases …
Date: September 9, 2008
Creator: Casey,R.; Haas, E.; Hseuh, H. C.; Kane, S.; Lessard, E.; Sharma, S. et al.
Object Type: Report
System: The UNT Digital Library
The Tiger (San Antonio, Tex.), Vol. 63, No. 1, Ed. 1 Tuesday, September 9, 2008 (open access)

The Tiger (San Antonio, Tex.), Vol. 63, No. 1, Ed. 1 Tuesday, September 9, 2008

Monthly student newspaper from St. Philip's College in San Antonio, Texas that includes campus news along with advertising.
Date: September 9, 2008
Creator: Christine, Glynis & Agold, Cynthia
Object Type: Newspaper
System: The Portal to Texas History
The Baytown Sun (Baytown, Tex.), Vol. 88, No. 253, Ed. 1 Tuesday, September 9, 2008 (open access)

The Baytown Sun (Baytown, Tex.), Vol. 88, No. 253, Ed. 1 Tuesday, September 9, 2008

Daily newspaper from Baytown, Texas that includes local, state, and national news along with advertising.
Date: September 9, 2008
Creator: Clements, Clifford E.
Object Type: Newspaper
System: The Portal to Texas History
Freedom of Speech and Press: Exceptions to the First Amendment (open access)

Freedom of Speech and Press: Exceptions to the First Amendment

This report provides an overview of the major exceptions to the First Amendment.
Date: September 9, 2008
Creator: Cohen, Henry
Object Type: Report
System: The UNT Digital Library
Dynamic intimate contact social networks and epidemic interventions (open access)

Dynamic intimate contact social networks and epidemic interventions

This article discusses dynamic intimate contact social networks and epidemic interventions.
Date: September 9, 2008
Creator: Corley, Courtney; Mikler, Armin R.; Cook, Diane J., 1963- & Singh, Karan P.
Object Type: Article
System: The UNT Digital Library
Evidence for X(3872) --> Psi(2S) gamma in B+/- --> X(3872) K+/- Decays, and a Study of B --> ccbar gamma K (open access)

Evidence for X(3872) --> Psi(2S) gamma in B+/- --> X(3872) K+/- Decays, and a Study of B --> ccbar gamma K

In a search for B {yields} c{bar c}{gamma} K decays with the BABAR detector, where c{bar c} includes J/{psi} and {psi}(2S), and K includes K{sup {+-}}, K{sub S}{sup 0} and K*(892), they find evidence for X(3872) {yields} J/{psi}{gamma} and X(3872) {yields} {psi}(2S){gamma} with 3.6{sigma} and 3.5{sigma} significance, respectively. They measure the product of branching fractions {Beta}(B{sup {+-}} {yields} X (3872)K{sup {+-}}) {center_dot} {Beta}(X(3872) {yields} J/{psi}{gamma}) = (2.8 {+-} 0.8(stat.) {+-} 0.2(syst.)) x 10{sup -6} and {Beta}(B{sup {+-}} {yields} X(3872)K{sup {+-}}) {center_dot} {Beta}(X(3872) {yields} {psi}(2S){gamma}) = (9.9 {+-} 2.9(stat.) {+-} 0.6(syst.)) x 10{sup -6}.
Date: September 9, 2008
Creator: Fulsom, B
Object Type: Article
System: The UNT Digital Library
Argonne National Laboratory Site Environmental Report for Calendar Year 2007. (open access)

Argonne National Laboratory Site Environmental Report for Calendar Year 2007.

This report discusses the status and the accomplishments of the environmental protection program at Argonne National Laboratory for calendar year 2007. The status of Argonne environmental protection activities with respect to compliance with the various laws and regulations is discussed, along with the progress of environmental corrective actions and restoration projects. To evaluate the effects of Argonne operations on the environment, samples of environmental media collected on the site, at the site boundary, and off the Argonne site were analyzed and compared with applicable guidelines and standards. A variety of radionuclides were measured in air, surface water, on-site groundwater, and bottom sediment samples. In addition, chemical constituents in surface water, groundwater, and Argonne effluent water were analyzed. External penetrating radiation doses were measured, and the potential for radiation exposure to off-site population groups was estimated. Results are interpreted in terms of the origin of the radioactive and chemical substances (i.e., natural, fallout, Argonne, and other) and are compared with applicable environmental quality standards. A U.S. Department of Energy dose calculation methodology, based on International Commission on Radiological Protection recommendations and the U.S. Environmental Protection Agency's CAP-88 Version 3 (Clean Air Act Assessment Package-1988) computer code, was used in preparing this …
Date: September 9, 2008
Creator: Golchert, N. W.; Davis, T. M.; Moos, L. P. & Oversight, ESH /QA
Object Type: Report
System: The UNT Digital Library
Observation of the Bottomonium Ground State, eta_b, at BaBar (open access)

Observation of the Bottomonium Ground State, eta_b, at BaBar

The authors present the first observation of the bottomonium ground state {eta}{sub b}(1S) in the photon energy spectrum using a sample of (109 {+-} 1) million of {Upsilon}(3S) events recorded at the {Upsilon}(3S) energy with the BaBar detector at the PEP-II B factory at SLAC. A peak at E{sub {gamma}} = 921.2{sub -2.8}{sup +2.1}(stat) {+-} 2.4(syst) MeV observed with a significance of 10 standard deviations in the photon energy spectrum is interpreted as being due to the radiative transition {Upsilon}(3S) {yields} {gamma} {eta}{sub b}(1S). This photon energy corresponds to an {eta}{sub b}(1S) mass of 9388.9{sub -2.3}{sup +3.1}(stat) {+-} 2.7(syst) MeV/c{sup 2}. The hyperfine {Upsilon}(1S)-{eta}{sub b}(1S) mass splitting is 71.4{sub -3.1}{sup +2.3}(stat) {+-} 2.7(syst) MeV/c{sup 2}. The branching fraction for this radiative {Upsilon}(3S) decay is obtained as (4.8 {+-} 0.5(stat) {+-} 1.2(syst)) x 10{sup -4}.
Date: September 9, 2008
Creator: Grenier, Philippe & Collaboration, for the BABAR
Object Type: Article
System: The UNT Digital Library
Rains County Leader (Emory, Tex.), Vol. 121, No. 14, Ed. 1 Tuesday, September 9, 2008 (open access)

Rains County Leader (Emory, Tex.), Vol. 121, No. 14, Ed. 1 Tuesday, September 9, 2008

Weekly newspaper from Emory, Texas that includes local, state, and national news along with advertising.
Date: September 9, 2008
Creator: Hill, Earl Clyde, Jr.
Object Type: Newspaper
System: The Portal to Texas History
The Brand (Abilene, Tex.), Vol. 97, No. 2, Ed. 1 Tuesday, September 9, 2008 (open access)

The Brand (Abilene, Tex.), Vol. 97, No. 2, Ed. 1 Tuesday, September 9, 2008

Bi-weekly student newspaper from Hardin-Simmons University in Abilene, Texas that includes campus news and local news of interest to students along with advertising.
Date: September 9, 2008
Creator: Koe, Crystal
Object Type: Newspaper
System: The Portal to Texas History
Government-Sponsored Enterprises (GSEs): An Institutional Overview (open access)

Government-Sponsored Enterprises (GSEs): An Institutional Overview

Congress chartered government-sponsored enterprises (GSEs) to improve the workings of credit markets. This report briefly describes the nature of GSEs, their mixed governmental-private nature, the differences between GSEs and government agencies, and the arguments for and against GSEs.
Date: September 9, 2008
Creator: Kosar, Kevin R.
Object Type: Report
System: The UNT Digital Library
Interaction-Point Phase-Space Characterization using Single-Beam and Luminous-Region Measurements at PEP-II (open access)

Interaction-Point Phase-Space Characterization using Single-Beam and Luminous-Region Measurements at PEP-II

We present an extensive experimental characterization of the e{sup {+-}} phase space at the interaction point of the SLAC PEP-II B-Factory, that combines a detailed mapping of luminous-region observables using the BABAR detector, with stored-beam measurements by accelerator techniques.
Date: September 9, 2008
Creator: Kozanecki, W; /Saclay; Bevan, A.J.; /Queen Mary, U. of London; Viaud, B.F.; U., /Montreal et al.
Object Type: Article
System: The UNT Digital Library
Worker Safety in the Construction Industry: The Crane and Derrick Standard (open access)

Worker Safety in the Construction Industry: The Crane and Derrick Standard

This report first examines the incidence of fatal and nonfatal on-the-job injuries in the private sector. It next analyzes the causes of fatalities in the construction industry and the involvement of cranes in those deaths. The report then addresses the status of a proposed rule to update the Occupational Safety and Health Administration's (OSHA) crane and derrick standard. It closes with an overview of jurisdictions having safety regulations for cranes more stringent, in whole or part, than the existing federal standard.
Date: September 9, 2008
Creator: Levine, Linda
Object Type: Report
System: The UNT Digital Library
Intramolecular Charge and Energy Transfer in Multichromophoric Aromatic Systems (open access)

Intramolecular Charge and Energy Transfer in Multichromophoric Aromatic Systems

A concerted experimental and computational study of energy transfer in nucleic acid bases and charge transfer in dialkylaminobenzonitriles, and related electron donor-acceptor molecules, indicate that the ultrafast photoprocesses occur through three-state conical interactions involving an intermediate state of biradical character.
Date: September 9, 2008
Creator: Lim, Edward C.
Object Type: Report
System: The UNT Digital Library
Air Pollution from Ships: MARPOL Annex VI and Other Control Options (open access)

Air Pollution from Ships: MARPOL Annex VI and Other Control Options

This report provides information regarding pollution from ships and port facilities; discusses some of the measures being implemented and considered by local, state, and federal regulatory agencies; discusses the efforts to ratify and to strengthen Annex VI of the International Convention for the Prevention of Pollution from Ships (MARPOL); and describes legislation Congress is considering to control emissions from ships by amending the Clean Air Act (CAA).
Date: September 9, 2008
Creator: McCarthy, James E.
Object Type: Report
System: The UNT Digital Library
Air Pollution from Ships: MARPOL Annex VI and Other Control Options (open access)

Air Pollution from Ships: MARPOL Annex VI and Other Control Options

This report provides information regarding pollution from ships and port facilities; discusses some of the measures being implemented and considered by local, state, and federal regulatory agencies; discusses the efforts to ratify and to strengthen Annex VI of the International Convention for the Prevention of Pollution from Ships (MARPOL); and describes legislation Congress is considering to control emissions from ships by amending the Clean Air Act (CAA).
Date: September 9, 2008
Creator: McCarthy, James E.
Object Type: Report
System: The UNT Digital Library
Credit Default Swaps: Frequently Asked Questions (open access)

Credit Default Swaps: Frequently Asked Questions

Credit default swaps are contracts that provide protection against default by third parties, similar to insurance. These financial derivatives are used by banks and other financial institutions to manage risk. This report defines credit default swaps, explains their use by banks for risk management, and discusses the potential for systemic risk.
Date: September 9, 2008
Creator: Murphy, Edward Vincent
Object Type: Report
System: The UNT Digital Library
U.S.-Russian Civilian Nuclear Cooperation Agreement: Issues for Congress (open access)

U.S.-Russian Civilian Nuclear Cooperation Agreement: Issues for Congress

This report discusses key policy issues related to the civilian nuclear cooperation agreement signed by the United States and Russia on May 6, 2008, including future nuclear energy cooperation with Russia, U.S.-Russian bilateral relations, nonproliferation cooperation, and Russia's policies toward Iran. These issues were relevant to the debate when the agreement was being considered in the 110th Congress.
Date: September 9, 2008
Creator: Nikitin, Mary Beth
Object Type: Report
System: The UNT Digital Library
Mass Models and Environment of the New Quadruply Lensed Quasar SDSS J1330+1810 (open access)

Mass Models and Environment of the New Quadruply Lensed Quasar SDSS J1330+1810

We present the discovery of a new quadruply lensed quasar. The lens system, SDSS J1330+1810 at z{sub s} = 1.393, was identified as a lens candidate from the spectroscopic sample of the Sloan Digital Sky Survey. Optical and near-infrared images clearly show four quasar images with a maximum image separation of 1.76 inch, as well as a bright lensing galaxy. We measure a redshift of the lensing galaxy of z{sub 1} = 0.373 from absorption features in the spectrum. We find a foreground group of galaxies at z = 0.31 centred {approx} 120 inch southwest of the lens system. Simple mass models fit the data quite well, including the flux ratios between images, although the lens galaxy appears to be {approx} 1 mag brighter than expected by the Faber-Jackson relation. Our mass modeling suggests that shear from nearby structure is affecting the lens potential.
Date: September 9, 2008
Creator: Oguri, Masamune; Inada, Naohisa; Blackburne, Jeffrey A.; Shin, Min-Su; Kayo, Issha; Strauss, Michael A. et al.
Object Type: Article
System: The UNT Digital Library