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Asymmetry in the angular distribution of inclusive A baryons from e/sup +/e/sup -/ annihilations at. sqrt. s = 29 GeV
The forward-backward asymmetry A expected from the ..gamma.. - Z/sup 0/ interference term in the process e/sup +/e/sup -/ ..-->.. q anti q is observed in the lab production angular distribution of high momentum A baryons. The data were collected with the High Resolution Spectrometer at PEP and an integrated luminosity of 256 pb/sup -1/ at ..sqrt..s = 29 GeV was used in the analysis. The asymmetry is seen to increase with the fractional energy z = 2E/..sqrt..s of the A due to the decreasing presence of nonleading particles. The value obtained for A baryons with z greater than or equal to 0.3 is A = -0.22 +- 0.08 +- 0.02.
Date:
May 1986
Creator:
Abachi, S.; Baringer, P.; Beltrami, I.; Bylsma, B. G.; DeBonte, R.; Koltick, D. et al.
Object Type:
Article
System:
The UNT Digital Library
lambda. production in e/sup +/e/sup -/ annihilations at 29 GeV
This paper presents measurements of the inclusive production cross sections of ..lambda.. baryons in e/sup +/e/sup -/ annihilations at ..sqrt..s = 29 GeV. The data sample corresponds to an integrated luminosity of 256 pb/sup -1/ collected with the High Resolution Spectrometer at PEP. Comparisons are made to the predictions of the Lund model. The data are well described using a strange diquark suppression parameter, (us/ud)/(s/d), of 0.89 +- 0.10/sub -0.16//sup +0.56/, and the measured ..lambda../sub c/ ..-->.. ..lambda.. + X branching ratio of 23 +- 10%. No polarization is observed in the ..lambda.. decays. 17 refs., 5 figs.
Date:
May 1, 1986
Creator:
Abachi, S.; Baringer, P.; Beltrami, I.; Bylsma, B.G.; DeBonte, R.; Koltick, D. et al.
Object Type:
Article
System:
The UNT Digital Library
Effect of gamma radiation on groundwater chemistry and glass leaching as related to the NNWSI repository site
To address the effect of ionizing radiation on groundwater chemistry and waste form durability, NNWSI is performing an extensive set of experiments as a function of dose rate (2 x 10{sup 5}, 1 x 10{sup 4}, 1 x 10{sup 3}, and 0 rad/h). The results of the tests done at 2 x 10{sup 5} rad/h have been reported, while the 1 x 10{sup 3} and 0 rad/h tests are in progress. This paper presents an overview of the results of the tests done at 1 x 10{sup 4} rad/h and discusses the relevance of these tests to repository conditions. An interpretation of the results relating to the manner by which the glass waste form corrodes is presented elsewhere. A complete discussion of the effect of gamma radiation on groundwater chemistry and waste form durability will be presented when the series of experiments are complete.
Date:
May 1986
Creator:
Abrajano, T.; Bates, J.; Ebert, W. & Gerding, T.
Object Type:
Report
System:
The UNT Digital Library
Thermodynamics of higher dimensional black holes
We discuss the thermodynamics of higher dimensional black holes with particular emphasis on a new class of spinning black holes which, due to the increased number of Casimir invariants, have additional spin degrees of freedom. In suitable limits, analytic solutions in arbitrary dimensions are presented for their temperature, entropy, and specific heat. In 5 + 1 and 9 + 1 dimensions, more general forms for these quantities are given. It is shown that the specific heat for a higher dimensional black hole is negative definite if it has only one non-zero spin parameter, regardless of the value of this parameter. We also consider equilibrium configurations with both massless particles and massive string modes. 16 refs., 3 figs.
Date:
May 1, 1986
Creator:
Accetta, F.S. & Gleiser, M.
Object Type:
Report
System:
The UNT Digital Library
Subsurface marker emplacement test plan
Current plans propose placing subsurface markers within protective barriers to deter potential human intrusion into disposed radioactive wastes. The subsurface markers would provide warning to the digging intruder should surface markers be removed, destroyed, or ignored. This plan sets forth procedures for testing the survivability of the subsurface markers during construction of the barrier. After the tests described herein are concluded, a decision can be made as to whether subsurface markers will require protection during barrier construction. If protection is required, additional tests will be needed to test the effectiveness of various protective approaches.
Date:
May 30, 1986
Creator:
Adams, M. R. & Carlson, R. A.
Object Type:
Report
System:
The UNT Digital Library
The Paducah Post (Paducah, Tex.), Vol. 80, No. 10, Ed. 1 Thursday, May 1, 1986
Weekly newspaper from Paducah, Texas that includes local, state, and national news along with advertising.
Date:
May 1, 1986
Creator:
Adams, Patty
Object Type:
Newspaper
System:
The Portal to Texas History
The Paducah Post (Paducah, Tex.), Vol. 80, No. 11, Ed. 1 Thursday, May 8, 1986
Weekly newspaper from Paducah, Texas that includes local, state, and national news along with advertising.
Date:
May 8, 1986
Creator:
Adams, Patty
Object Type:
Newspaper
System:
The Portal to Texas History
The Paducah Post (Paducah, Tex.), Vol. 80, No. 12, Ed. 1 Thursday, May 15, 1986
Weekly newspaper from Paducah, Texas that includes local, state, and national news along with advertising.
Date:
May 15, 1986
Creator:
Adams, Patty
Object Type:
Newspaper
System:
The Portal to Texas History
The Paducah Post (Paducah, Tex.), Vol. 80, No. 13, Ed. 1 Thursday, May 22, 1986
Weekly newspaper from Paducah, Texas that includes local, state, and national news along with advertising.
Date:
May 22, 1986
Creator:
Adams, Patty
Object Type:
Newspaper
System:
The Portal to Texas History
The Paducah Post (Paducah, Tex.), Vol. 80, No. 14, Ed. 1 Thursday, May 29, 1986
Weekly newspaper from Paducah, Texas that includes local, state, and national news along with advertising.
Date:
May 29, 1986
Creator:
Adams, Patty
Object Type:
Newspaper
System:
The Portal to Texas History
ACTVE News, Volume 17, Number 3, May/June 1986
Newsletter issued by the Advisory Council for Technical-Vocational Education in Texas discussing news, events, and other relevant information related to technical and vocational education for adults in Texas.
Date:
May 1986
Creator:
Advisory Council for Technical-Vocational Education in Texas
Object Type:
Journal/Magazine/Newsletter
System:
The Portal to Texas History
Application of EQ3/6 to modeling of nuclear waste glass behavior in a tuff repository
Modeling of glass degradation based on sound geochemical principles appears to be possible with revisions to EQ3/6. Realistic source terms for several repository scenarios may be generated with such a model. One scenario which appears very likely and which is also amenable to modeling using EQ3/6 is that in which an intact but perforated canister holds water in contact with waste glass. The water overflows continuously or periodically, allowing radionuclides to come in contact with repository rock. This isolated-type scenario will be the first realistic modeling effort because it limits complex interactions between rock and glass. However, EQ3/6 modeling should be possible even for very complicated scenarios if sufficient experimental data are available on rates and thermodynamics. This will be the limiting factor in progress toward modeling the complete system.
Date:
May 1, 1986
Creator:
Aines, R. D.
Object Type:
Report
System:
The UNT Digital Library
Progress at LAMPF. Progress report, January-December 1985
Research performed at LAMPF during 1985 is reported in the areas of: nuclear and particle physics; atomic and molecular physics; materials science; radiation-effects studies; biomedical research and instrumentation; nuclear chemistry; radioisotope production; and physics theory. Also reported are the status of LAMPF-II, facility development work, and accelerator operations. (LEW)
Date:
May 1, 1986
Creator:
Allred, J.C. & Talley, B. (eds.)
Object Type:
Report
System:
The UNT Digital Library
Southwest Retort, Volume 39, Number 5, May 1986
This publication of the Dallas-Fort Worth Section of the American Chemical Society includes information about research, prominent scientist, organizational business, and various other stories of interest to the community.
Date:
May 1986
Creator:
American Chemical Society. Dallas/Fort Worth Section.
Object Type:
Journal/Magazine/Newsletter
System:
The UNT Digital Library
A Proposal to Study Beauty Production and Other Heavy Quark Physics Associated with Dimuon Production in 800 (925) GeV/C pp Interactions
The presence of dimuons in final states produced in hadronic interactions has proved to be a valuable indicator that interesting hard physics processes have taken place. These muon pairs provide a mechanism for selecting these relatively rare processes from interactions due to the total cross section. In particular, processes involving heavy quarks are flagged by the presence of muon pairs. We are proposing to use the high rate E705 spectrometer and its dimuon trigger processor which have already functioned well in Experiments E-537 and E-705 to detect and measure several heavy quark phenomena which result in a final state containing a pair of muons. This experiment will use the primary proton beam from the Tevatron at the maximum energy available at the time of execution of the experiment. The spectrometer will be augmented by the addition of a silicon tracker similar to those used in other experiments at the Fermilab. The present P-West High Intensity Laboratory secondary beams will need to be upgraded by addition of sufficient bending power to allow the transport of the 800 to 925 GeV/c primary proton beam to the experiment target (see Appendix A).
Date:
May 1, 1986
Creator:
Arenton, M.; Chen, T. Y.; Lai, K. W.; Yao, N.; U., /Arizona; Anassontzis, S. E. et al.
Object Type:
Report
System:
The UNT Digital Library
The strange meson resonances observed in the reaction K/sup -/p. -->. anti K/sup 0/. pi. /sup +/. pi. /sup -/n at 11 GeV/c
A model incorporating K* resonance contributions and simple backgrounds is shown to quantitatively reproduce the mass dependence of the partial wave amplitudes governing the production and decay of the anti K/sup 0/..pi../sup +/..pi../sup -/ system. A fit of this model to these amplitudes confirms the resonance interpretations of the well-established 1/sup +/ K/sub 1/(1400), the 2/sup +/ K/sub 2/*(1430), the 3/sup -/ K/sub 3/*(1780), and the less well-known 1/sup -/ states, the K*(1410) and the K*(1790). The 4/sup +/ amplitudes are shown to be consistent with the production and decay of the 4/sup +/ K/sub 4/*(2060). A second 2/sup +/ enhancement at a mass of approx.1.95 GeV/c/sup 2/ can be interpreted as resonant and may be the radial excitation of the K/sub 2/*(1430) or the triplet partner of the K/sub 4/*(2060). New measurements of the masses, widths and branching ratios of these states are given, and the implications of these data for the spectroscopy of the nonstrange meson sector are discussed.
Date:
May 1, 1986
Creator:
Aston, D.; Awaji, N.; D'Amore, J.; Dunwoodie, W.; Endorf, R.; Fujii, K. et al.
Object Type:
Article
System:
The UNT Digital Library
Animals in Nursing Homes: State Guideline Development
Companion animals can reduce the elderly person's feelings of isolation and stress, provide tactile stimulation, offer a means of socialization and establish a nonthreatening, nonjudgmental relationship. As an adjunct to treatment, pet therapy may serve to ease the transition from community to nursing home and assist residents in establishing relationships with animals, caregivers, and other residents.
Date:
May 1986
Creator:
Ayers, Dawn S.
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
A Comparison of the Teaching of History in Teacher Colleges in the Metropolitan Region and Other Regions in Thailand
The purpose of this study is to compare and analyze the teaching of history in teachers colleges in the Metropolitan region and other regions in Thailand. Variables examined in this study include the following: salary, teaching experience, degrees held, the number of graduate credit hours in history, the number of graduate credit hours in education, attendance at professional meetings, the number of publications, membership in professional organizations, the number of hours devoted to course preparations, teaching load, and teaching behaviors. The comparison is based on geographical location of the teachers colleges by region. The survey instrument, after intensive review and validation by selected faculty both in Thailand and the United States, was distributed to the 180 history instructors in the teachers colleges in the six major regions of Thailand. The total number of responses was 138, or 76.7 per cent. The statistical procedures used in the analyses of data include frequency and percentage of responses, a chi square test of independence, t test, the Yates* correction for continuity, and Fisher's Exact Probability Test (2-tailed). The data findings from this study indicate that there is a high degree of similarity between the respondents from the Metropolitan region and other regions' history …
Date:
May 1986
Creator:
Ayuwathana, Suratath
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
The Differences in Perceived Needs Between Practicing Teachers and College Instructors Concerning Inservice Education Programs in Teachers Colleges in Thailand
The purpose of this study is to identify and compare the perceptions of practicing teachers and college instructors toward four components of inservice education programs: content, organization, format of presentation, and participant involvement in the teachers colleges in Thailand. The comparison is based on the demographic variables of sex, age, educational background, and teaching experience in the institution. The "In-Service Education Attitude Survey" by Yesuratnam, Basimalla at the University of Illinois at Urbana-Champaign, Urbana, Illinois in 1982 was used to gather data for this study. It was distributed to a sample of 380 practicing teachers and college instructors in 19 randomly selected teachers colleges in Thailand; 368 usable instruments were returned (97.15%). The data were treated to produce numbers and percentages. The t tests for two independent samples were computed to determine any statistically significant differences between the respondent groups of practicing teachers and college instructors, and between the practicing elementary and secondary school teachers. The F tests were also utilized to determine any statistically significant differences among the variables of practicing teachers and college instructors.
Date:
May 1986
Creator:
Ayuwathana, Wanida
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
[Memo: Dallas Fire Department Recruit Class 86-218]
Memorandum listing the roster of recruits for the Dallas Fire Department in training from May 5, 1986 to October 9, 1986.
Date:
May 2, 1986
Creator:
Bailey, W. N.
Object Type:
Text
System:
The Portal to Texas History
[Memo: Dallas Fire Department Recruit Class 86-218 Corrections]
Memorandum correcting the listing of recruits in class #86-218 issued on May 2, 1986.
Date:
May 5, 1986
Creator:
Bailey, W. N.
Object Type:
Text
System:
The Portal to Texas History
Beam-beam deflections as an interaction point diagnostic for the SLC
A technique is described for non-destructive measurement and monitoring of the steering offset of the electron and positron beams at the interaction point of the SLC, based on using stripline beam-position monitors to measure the centroid of one beam as it is deflected by the opposing beam. This technique is also expected to provide diagnostic information related to the spot size of the micron-size beams.
Date:
May 1, 1986
Creator:
Bambade, P. & Erickson, R.
Object Type:
Article
System:
The UNT Digital Library
Deflection by the image current and charges of a beam scraper
Scrapers are often used in storage rings and accelerators to clean the transverse profile of the beam. When the beam is not exactly midway between the jaws of the scraper the transverse electric and magnetic fields produced by the image charges and currents are asymmetric. For a relativistic beam traveling through a longitudinally uniform tube with infinitely conducting walls the transverse force from the electric field is canceled by the transverse force from the magnetic field. When an off-center particle bunch passes by a longitudinal discontinuity in the beam tube the transverse force from the electric field are no longer cancelled by the transverse force from the magnetic field and particles in the bunch experience a transverse momentum kick which is independent of energy. It is shown that scrapers that pass close by high peak current beams can significantly degrade the beam emittance. A circular scraper was chosen for computer simulation. (LEW)
Date:
May 1, 1986
Creator:
Bane, K. L. F. & Morton, P. L.
Object Type:
Article
System:
The UNT Digital Library
Lincoln-Douglas Debate in the State of Texas
This study traces the development of Lincoln-Douglas debate in Texas. The history of this type of debate from the Great Debate between Abraham Lincoln and Stephen Douglas to the Reagan-Mondale debates is considered. In addition, the merits of this type of oral controversy are explored. The reasons for the creation of L-D debate and its introduction into the forensic curriculum are discussed. In order to measure L-D's growing acceptance in the debate community, the results of a questionnaire of Texas Forensic Association debate coaches is evaluated. This study found that L-D debate is growing in participation in Texas schools. The distinct features of L-D enable it to be an innovative and challenging form of discourse.
Date:
May 1986
Creator:
Baxter, Laura B. (Laura Beth)
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library