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Multiplicity Distributions in νμp Interactions

Description: Multiplicity distributions of the hadrons produced in antineutrino proton interactions are presented. The data sample, which consists of 2025 charged-current events with antineutrino energy greater than 5 GeV, comes from exposures of the 15-foot hydrogen bubble chamber to the broad-band antineutrino beam at Fermilab. The distribution in hadronic mass W has an average value of 3.7 GeV but extends up to 10 GeV. The mean multiplicity of charged hadrons depends on the hadronic mass W and varies as <n/sub ch/> = (-0.44 +- 0.13) + (1.48 +- 0.06) 1n W/sup 2/ for W/sup 2/ > 4 GeV/sup 2/. The mean multiplicities for events with three or more charged tracks averaged over the total data sample are <n/sub -/> = 1.68 +-0.03 and <n/sub 0/> = 1.11 +- 0.07 for ..pi../sup -/ and ..pi../sup 0/ production, respectively. The mean ..pi../sup 0/ multiplicity is found to increase slowly with n/sub -/. The integrated correlation coefficient f/sub 2//sup - -/ and the dispersion D/sup -/ are given as a function of n/sub -/. When compared to the distributions characteristic of other leptonic and hadronic reactions, a similarity is found between the anti ..nu..- data and results from hadronic reactions that have no diffractive component. Multiplicity data for the heavier particles K/sup 0/, rho and ..lambda.. are also summarized. The pion multiplicities in the current fragmentation region exceed those for the target fragmentation at all W values. They also satisfy the isospin relation 2<n/sub 0/> = <n/sub +/> + <n/sub -/> required for the fragmentation of an I = 1/2 quark when a W > 4 GeV selection is imposed.
Date: January 1, 1981
Creator: Derrick, M.; Gregory, P. & LoPinto, F.
Partner: UNT Libraries Government Documents Department

Mixing angles in SU(2)/sub L/ x U(1) gauge model

Description: Exact expressions for the mixing parameters are obtained in terms of mass ratios in the standard Weinberg-Salam model with permutation symmetry S/sub 3/ for six quarks. The CP-violating phase is ignored, and there are no arbitrary parameters except for the quark masses. In the lowest order, the angles defined by Kobayashi-Maskawa are sin theta/sub 1/ = sin theta/sub c/ = (m/sub d//m/sub d/ + m/sub s/)/sup 1/2/, sin theta/sub 3/ = -sin theta/sub 3/ = -m/sup 2//sub s//m/sup 2//sub b/, and m/sub t/m/sub s/ greater than or equal to m/sub c/m/sub b/ = 7.2 GeV/sup 2/ or m/sub t/ greater than or equal to 24 GeV for m/sub s/ = 0.3 GeV.
Date: January 1, 1979
Creator: Nandi, S. & Tanaka, K.
Partner: UNT Libraries Government Documents Department

Attorney General's Memorandum on Federal Marijuana Enforcement: Possible Impacts

Description: This report discusses Attorney General Jeff Sessions' memorandum on federal marijuana enforcement policy sent to all U.S. Attorneys that immediately rescinds guidance documents specific to marijuana enforcement. It provides background on the memorandum, the relevant regulations, and implications of withdrawing previous guidance.
Date: January 10, 2018
Creator: Garvey, Todd & Yeh, Brian T.
Partner: UNT Libraries Government Documents Department

What Happens if the National Flood Insurance Program (NFIP) Lapses?

Description: This report provides a short overview of what would happen if the National Flood Insurance Program (NFIP) were not to be reauthorized by January 19, 2018, and was allowed to lapse.
Date: January 3, 2018
Creator: Horn, Diane P.
Partner: UNT Libraries Government Documents Department

Military Service Records, Awards, and Unit Histories: A Guide to Locating Sources

Description: This report provides information on locating military unit histories and individual service records of discharged, retired, and deceased military personnel. It also provides information on locating and replacing military awards and medals as well as contact information for military history centers, websites for additional sources of research, and a bibliography of other publications, including related CRS reports.
Date: January 2, 2018
Creator: DeBruyne, Nese F. & Torreon, Barbara Salazar
Partner: UNT Libraries Government Documents Department

Budget Enforcement Procedures: The Senate Pay-As-You-Go (PayGO) Rule

Description: This report discusses the Senate pay-as-you-go (PAYGO) rule, which generally requires that any legislation projected to increase direct spending or reduce revenues must also include equivalent amounts of direct spending cuts, revenue increases, or a combination, so that the legislation does not increase the on-budget deficit in the current fiscal year, the budget year, a six-year period, or an 11-year period (the latter two periods beginning with the current fiscal year). This update includes the most recent changes to the rule, and adds information on points of order raised under the rule since 2015.
Date: January 9, 2018
Creator: Heniff, Bill, Jr.
Partner: UNT Libraries Government Documents Department

Libya: Transition and U.S. Policy

Description: This report discusses Libya's political and governmental structure, struggles to transition to a stable democratic government after Muammar al Qadhafi was overthrown in 2011, and U.S. policy and assistance in Libya.
Date: January 8, 2018
Creator: Blanchard, Christopher M.
Partner: UNT Libraries Government Documents Department

Changes in the Arctic: Background and Issues for Congress

Description: This report provides an overview of general, Arctic-related issues for Congress, such as: Arctic territorial disputes; commercial shipping through the Arctic; Arctic oil, gas, and mineral exploration; endangered Arctic species; and increased military operations in the Arctic, which could cause the region in coming years to become an arena of international cooperation or competition.
Date: January 4, 2018
Creator: O'Rourke, Ronald
Partner: UNT Libraries Government Documents Department

Iran: Politics, Human Rights, and U.S. Policy

Description: This report discusses Iran's political and governmental structure, major elections and political unrest (including the Dec. 2017-Jan 2018 protests), and human rights violations, as well as U.S. policy and relations with Iran.
Date: January 8, 2018
Creator: Katzman, Kenneth
Partner: UNT Libraries Government Documents Department

EPA Proposes to Repeal the Clean Power Plan

Description: This report is an update of an earlier report regarding the EPA's (Environmental Protection Ageny's) proposed repeal of the Clean Power Plan, which was intended to reduce greenhouse gas emissions. On Dec. 28, 2017 the EPA issued an Advanced Notice of Proposed Rulemaking (ANPRM) seeking input on creating a new replacement regulation for the previous Clean Power Plan.
Date: January 4, 2018
Creator: Tsang, Linda
Partner: UNT Libraries Government Documents Department

Clean Air Act Issues in the 115th Congress: In Brief

Description: This report discusses issues regarding the EPA and its regulations of greenhouse gas emissions and air quality standards under the Clean Air Act and various court proceedings and Congressional and executive discussions related to them.
Date: January 3, 2018
Creator: McCarthy, James E.
Partner: UNT Libraries Government Documents Department

Serbia: Background and U.S. Relations

Description: This report provides an overview of Serbia and its governmental structure, economy, and foreign relations with the U.S., Kosovo, Turkey, Russia, and the EU.
Date: January 4, 2018
Creator: Morelli, Vincent L.
Partner: UNT Libraries Government Documents Department

Sponsorship and Cosponsorship of House Bills

Description: This report discusses the rules and procedures regarding a Congress member sponsoring or cosponsoring a bill in the House.
Date: January 8, 2018
Creator: Oleszek, Mark J.
Partner: UNT Libraries Government Documents Department

Vessel Incidental Discharge Legislation in the 115th Congress: Background and Issues

Description: This report outlines regulations for vessels discharging ballast water into U.S waters, to prevent the spread of invasive species and pollution of bodies of water. It discusses various federal, state, and Coast Guard requirements along with exempted vessel types, and recent legislative action regarding the issue.
Date: January 8, 2018
Creator: Gatz, Laura
Partner: UNT Libraries Government Documents Department

The U.S. Export Control System and the Export Control Reform Initiative

Description: This report discusses the U.S. export control system and the initiative started by President Obama to study and make recommendations for reform of the export control system by streamlining processes and consolidating control of the program in one agency.
Date: January 8, 2018
Creator: Fergusson, Ian F. & Kerr, Paul K.
Partner: UNT Libraries Government Documents Department

Update: Who's the Boss at the CFPB

Description: This report is an update regarding the acting director of the Consumer Financial Protection Bureau, as there were two indivuduals who claimed the right to the job. The Trump Administration appointed acting director, Mick Mulvaney, was confirmed in his position after a lawsuit filed by the previous acting director, Leandra English, was denied by the DC courts.
Date: January 11, 2018
Creator: Brannon, Valerie C. & Cole, Jared P.
Partner: UNT Libraries Government Documents Department

National Flood Insurance Borrowing Authority

Description: This report evaluates the National Flood Insurance Program's (NFIP's) borrowing authority to receive loans from the U.S. Department of the Treasury -- particularly in the context of major floods -- and discusses the current financial situation of the NFIP as it pays claims from Hurricanes Harvey, Irma, and Maria.
Date: January 3, 2018
Creator: Horn, Diane P.
Partner: UNT Libraries Government Documents Department

Acquisition Reform in the FY2016-FY2018 National Defense Authorization Acts (NDAAs)

Description: This report provides a brief overview of selected acquisition-related provisions found in the National Defense Authorization Acts (NDAAs) for FY2016 (P.L. 114-92), FY2017 (P.L. 114-328), and FY2018 (P.L. 115-91), including the following topics that were a focus of the legislation: Major Defense Acquisition Programs, the acquisition workforce, commercial items, Other Transaction Authority, and contract types. This report also discusses the breakup of the office of the Under Secretary of Defense for Acquisition, Technology, and Logistics, as well as the shift of authority from that office to the military departments.
Date: January 4, 2018
Creator: Schwartz, Moshe
Partner: UNT Libraries Government Documents Department

The effect of internal magnetic structure on the fishbone instability

Description: Plasmas exhibiting the fishbone'' instability studied on the PBX-M tokamak show a distinct relationship between the plasma shape, the internal magnetic structure, and the presence or absence of fast ion losses associated with the fishbone mode. We have, for the first time, carried out measurements of the magnetic safety factor profile in fishbone-unstable plasmas, and used the knowledge of the associated experimental equilibria to compare the stability and fast ion loss properties of these plasmas with experimental observations.
Date: January 1, 1992
Creator: Roberts, D.W.; Powell, E. (Lawrence Livermore National Lab., CA (United States)); Kaita, R.; Bell, R.; Chance, M.; Hatcher, R. et al.
Partner: UNT Libraries Government Documents Department

Low cost solar array project: composition measurements by analytical photon catalysis. First quarterly report, November 1--December 31, 1978

Description: The object of this research is to assess the applicability of the photon catalysis technique for effecting composition analysis of silicon samples. In particular, the technique is to be evaluated as a detector for the impurities Al, Cr, Fe, Mn, Ti, V, Mo and Zr. During the first reporting period Al, Cr, Fe and Mn were detected with the photon catalysis method. The best fluorescence lines to monitor were established, and initial sensitivities to each to these elements were determined by atomic absorption calibration. In the course of these tests, vapor pressure curves for these four pure substances have also been mapped.
Date: January 1, 1978
Creator: Sutton, D.G.; Galvan, L.; Melzer, J. & Heidner, R.F III
Partner: UNT Libraries Government Documents Department

Mainstem Clearwater River Study: Assessment for Salmonid Spawning, Incubation, and Rearing.

Description: Chinook salmon reproduced naturally in the Clearwater River until damming of the lower mainstem in 1927 impeded upstream spawning migrations and decimated the populations. Removal of the Washington Water Power Dam in 1973 reopened upriver passage. This study was initiated to determine the feasibility of re-introducing chinook salmon into the lower mainstem Clearwater River based on the temperature and flow regimes, water quality, substrate, and invertebrate production since the completion of Dworshak Dam in 1972. Temperature data obtained from the United States Geological Survey gaging stations at Peck and Spalding, Idaho, were used to calculate average minimum and maximum water temperature on a daily, monthly and yearly basis. The coldest and warmest (absolute minimum and maximum) temperatures that have occurred in the past 15 years were also identified. Our analysis indicates that average lower mainstem Clearwater River water temperatures are suitable for all life stages of chinook salmon, and also for steelhead trout rearing. In some years absolute maximum water temperatures in late summer may postpone adult staging and spawning. Absolute minimum temperatures have been recorded that could decrease overwinter survival of summer chinook juveniles and fall chinook eggs depending on the quality of winter hiding cover and the prevalence of intra-gravel freezing in the lower mainstem Clearwater River.
Date: January 1, 1989
Creator: Conner, William P.
Partner: UNT Libraries Government Documents Department

Fundamental mechanisms in flue gas conditioning

Description: This project is divided into four tasks. Task 1 is the Development of a Management Plan. Task 2, Evaluation of Mechanisms in FGD Sorbent and Ash Interactions, focuses on the characteristics of binary mixtures of these distinct powders. Task 3, Evaluation of Mechanisms in Conditioning Agents and Ash, is designed to examine the effects of various conditioning agents on fine ash particles to determine the mechanisms by which these agents alter the physical properties of the ash. Tasks 2 and 3 began with an extensive literature search and the assembly of existing theories. The results of the work performed under Tasks 2 and 3 will be included in a Flue Gas Conditioning Model that will be issued under Task 4. The Final Report for the project will also be prepared under Task 4. This quarterly report covers four months in order to synchronize the reporting periods for this project with US Government quarters. Work performed on the project during the past quarter consisted almost entirely of the review of literature pertaining to the objectives of Tasks 2 and 3. The primary results of that review are discussed at length in Topical Reports 1 and 2, submitted January 9, 1992. As a consequence of the work described in the topical reports, several of the project's Measures of Success that were described in the first quarterly report have been achieved. This quarterly report will discuss these achievements.
Date: January 23, 1992
Creator: Snyder, T. R.
Partner: UNT Libraries Government Documents Department

Pulsed power particle beam fusion research

Description: Although substantial progress has been made in the last few years in developing the technology of intense particle beam drivers, there are still several unanswered questions which will determine their ultimate feasibility as fusion ignition systems. The questions of efficiency, cost, and single pulse scalability appear to have been answered affirmatively but repetitive pulse technology is still in its infancy. The allowable relatively low pellet gains and high available beam energies should greatly ease questions of pellet implosion physics. Insofar as beam-target coupling is concerned, ion deposition is thought to be understood and our measurements of enhanced electron deposition agree with theory. With the development of plasma discharges for intense beam transport and concentration it appears that light ion beams will be the preferred approach for reactors.
Date: January 1, 1979
Creator: Yonas, G.
Partner: UNT Libraries Government Documents Department
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