174 research outputs found
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Measurement of the left-right charge asymmetry in hadronicc Z decays and A{sub e} determination
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Creighton University Omaha, Nebraska School of Law Class of 1995
No full textGraduates|Abariotes, Elizabeth S.; Alexander, Jerry P.; Allen, Michelle K.; Anderson, Marcia K.; Ash, Laura M.; Baranko, Tracy A.; Barrett, Thomas S. (President); Bausch, Trenten P.; Bazley, Amy R.; Beck, William G.; Berger, Karl H.; Black, Ralph E.; Bloomingdale, Patrick T.; Bongard, Michael J.; Booth, Robert F.; Brantley, W. Thomas; Brundo, Nicole; Buckman, John B.; Burgess, Laurie E.; Buxton, Cynthia; Byrnes, Michelle T.; Calkins, Scott A.; Chase, Karla A.; Childs, Eric M.; Coleman, Todd C.; Crawford, Nancy L.; Daley, Michael D.; Damski, Elizabeth; de la Lama, Pablo; Dean, Kelly L.; DeVeney, Jean M.; Devine, Michael J.; Donovan, Mary A.; Dotzler, Christal M.; Dowd, Kelley E.; Dowd, Timothy S.; Dvorak, David M.; Elsinger, Janine M.; Emdin, Michael T.; Fagan, Charles D.; Farres, Edelberto; Fiester, David R.; Flanagan, Paul E.; Franzese, Matthew P.; Fritz, Richard R.; Gauer, Keith A.; Gentry, Amy E.; Gill, John F.; Girard, Gina Stella; Girard, Owen E.; Glover-Ettrich, Suzanna G.; Glynn, David T.; Gonzales, Ruben, Jr.; Gottula, Lisa G.; Greenway, Lori A.; Griffin, Patrick J.; Grimm, Stefanie A.; Grinstead, Tracy E.; Gunhus, Kimberly K.; Habush-Dewar, Laura; Haver, John L.; Hearn, Clayton R.; Heim, Geoffrey S.; Henkenius, Michael L.; Henry, Todd W.; Hess, William F.; Horne, Nathan R.; Hurley, Francis P.; Johnson, Douglas A.; Johnson, Laurie L.; Keiper, Monte R.; Kelley, James E.; Kelley, Kevin J.; Kennedy, Leigh Ann; Kenney, Joseph P.; Kerschen, Karla R.; Kimball, Jared C.; Klein, Lawrence S.; Kleinschmidt, Kelly K.; Larkins, James M., III; Lathrop, Christopher J.; Leahy, Michael J.; LeMay, MIchael A.; Lockwood, Brian J.; Logan, Jeffrey R.; Long, Kimberly F.; Lucas, Tory L.; Lutz, Patrick M.; Mahanna, Stephen E.; Malousek, Mark J.; Martey, Pamela M.; McCandless, Erin E.; McClintock, John E.; McGargill, Jennifer A.; Mellor, Michele M.; Meloy, Daniel A.; Merithew, George T.; Meulner, Brian S.; Mikulicz, Timothy D.; Moore, Scott P.; Morgan, Heather; Morrow, Jennifer H.; Morss, Kristin A. (Class Representative); Mulholland, Jennifer; Murphy, Thomas R.; Murray, John M.; Neuharth, Christine A.; Nolte, Bobie A.; O'Brien, Dennis M.; Perales, Jill A.; Petregal, Laura A.; Poe, David C.; Polack, James; Pulk, Brooke E.; Rademacher, Leigh A.; Real, Daniel L.; Reeb, David P., Jr.; Remedios, Anna M.; Ribick, Traci A.; Ridenour, David E.; Routt, Christopher A.; Rowley, Susan C.; Schmidt, Thomas A. K.; Schrant, Melissa A.; Scott, Eric A., IV; Seibel, Michael J.; Shiers, Andrew J.; Shotkoski, Paul M.; Skinner, Matthew L.; Slater, Wendy L.; Speca, Peter J.; Stirek, Michelle Sand; Stock, Jo Ellen K.; Straka, Thomas J.; Streng, Pamela Kaye; Sulentic, John N.; Sullivan, Robert M.; Swanson, Martin W. (Class Representative); Swanson, Rachel A.; Tanko, Brian C.; Ueding, Michelle M.; Vana, Candyce L.; Van Wyk, Douglas J.; Waters, Jonathan P.; Weatherhead, Angela M.; Wessel, Ron W.; Whelan, Deirdre E.; Whited, Stephanie A.; Whitten, Eden T.; Wintroub, David S.; Wood, Nancy A.; Wood, Steven D.; Yamagishi, Daniel G.; Yauger, Brett S.; Zaritsky, Michael A.; Achola, George B. (not pictured); Akins, Samual J. (not pictured); Allred, Rosemarie Lazcano (not pictured); Bima, Kenneth S. (not pictured); Carter, Ann M. (not pictured); Destache, Denise M. (not pictured); Dopheide, Andrew P. (not pictured); Graue, James E. (not pictured); Henderson, Sandy R. (not pictured); Jacoby, Jeffrey J. (not pictured); Lashkajani, Elaine L. (not pictured); Martin, Lisa M. (not pictured); Muncy, Martin B. (not pictured); Spellman, Daniel J. (not pictured); Stolarskyj, Christine A. (not pictured); Wade, Brenda M. (not pictured)|45 x 36 in. (landscape
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Properties of D* production in e/sup +/e/sup -/ annihilation at 29 GeV
No full textD* production is studied in the decay chain D*/sup +/ ..-->.. D/sup 0/ ..pi../sup +/ with the D/sup 0/ observed in the K/sup -/..pi../sup +/ mode and the corresponding charge conjugate decays. The results were obtained from a preliminary analysis of an 80 pb/sup -1/ data sample of e/sup +/e/sup -/ annihilations at 29 GeV taken with the High Resolution Spectrometer at PEP. The excellent mass resolution of the HRS allows the study of the D* production and decay with very low background. We present the fragmentation function over the range of Z from 0.2 to 1.0
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Study of quark fragmentation in e/sup +/e/sup -/ annihilation at 29 GeV: charged particle multiplicity distributions
No full textThis paper presents the charged particle multiplicity distributions for e/sup +/e/sup -/ annihilation at ..sqrt..s = 29 GeV measured in the High Resolution Spectrometer. The data, which correspond to an integrated luminosity of 185 pb/sup -1/, were obtained at the e/sup +/e/sup -/ storage ring PEP. The techniques used to obtain the original distributions from the observed prong numbers are discussed. The multiplicity distribution of the charged particles with a two jet selection has a mean value = 13.02 +- 0.03 +- 0.5; and a dispersion D = 3.84 +- 0.02 +- 0.1. The mean multiplicity increases with the event sphericity. No correlation is observed between the multiplicities in the two jets that characterize most of the events. For the single jets a value of D = 2.71 +- 0.02 +- 0.06 is measured which gives further support the idea of independent jet fragmentation. When compared with e/sup +/e/sup -/ data at other energies, the multiplicity distributions exhibit the scaling behavior in the mean first suggested by Koba, Nielsen and Olsen (KNO). The KNO distribution in the central rapidity interval is broader than that for the whole rapidity span and agrees well with the generalized Bose-Einstein formula for three independent sources. 17 refs., 14 figs
Proton Elastic and Inelastic Scattering at Intermediate Energies from Isotopes of Oxygen and 9-Be as Part of a Unified Study of These Nuclei
No full textThis work was supported by National Science Foundation Grants PHY 76-84033A01, PHY 78-22774, and Indiana Universit
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Study of quark fragmentation at 29 GeV
No full textThe study of multi-particle final state in high-energy reactions has a long history. Detailed studies of hadronic interactions at Fermilab and at the CERN ISR have shown that particles are emitted in clear jets of hadrons along the beam directions. For the highest energies, a small fraction of events contains large-angle jets originating from hard collisions, in addition to the beam and target fragmentation products. The clearest observation of jets has been in high-energy e/sup +/e/sup -/ reactions. Hadronic interactions contain 5 or 6 valence quarks already in the initial state. The final state in e/sup +/e/sup -/ annihilation represents at the parton level a relatively simple dynamical system: a q anti q state plus possibly a hard gluon therefore jets produced in e/sup +/e/sup -/ annihilation have to be considered as the cleanest ones. The study of their properties can help, not only to understand quark fragmentation but may also serve as an important tool in the analysis of the much more complex mechanism in hadronic interactions. In this paper we present preliminary results of the overall features of our first sample of e/sup +/e/sup -/ annihilation events at 29 GeV. The data were taken using the High Resolution Spectrometer (HRS) operated at the PEP storage ring at the Stanford Linear Accelerator Center
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