Thesis (Ph. D.)--University of Wisconsin--Madison, 1970. / Typescript and manuscript. Vita. Description based on print version record. Includes bibliographical references (leaves 106-108).

Thesis (Ph. D.)--Florida State University, 2005. / Advisor: Dr. Simon Capstick, Florida State University, College of Arts and Sciences, Dept. of Physics. Title and description from dissertation home page (viewed Sept. 19, 2005). Document formatted into pages; contains x, 164 pages. Includes bibliographical references.

No description available.

The gaseous halo surrounding a galaxy disk is often referred to as the circum-galactic medium (CGM). The boundary of the CGM is loosely defined as the virial radius of the galaxy. Recent observations and simulations have shown that the CGM is massive, multiphase, clumpy, and metal-enriched. The CGM plays an important role in galaxy formation and evolution – it serves as a massive baryonic reservoir, from which the disk accretes gas fuel to sustain the star-formation activities, and to which the disk deposits feedback material. This dissertation focuses on the gas distribution in the CGM of the Milky Way (MW) and the baryon cycle between the CGM and disk of our neighbor – the Triangulum Galaxy (M33). Observations of the MW’s CGM are unavoidably contaminated by foreground gas since we reside in the MW’s disk. Conventionally, a velocity cut at |VLSR|~100 km/s is used as a proxy for distance, with low-velocity (|VLSR|<100 km/s) gas being more nearby to the Galactic disk than high-velocity gas. Using both a MW-mass simulation and all-sky QSO observations, I show that the low-velocity gas in the MW’s CGM is as massive as their high-velocity counterpart, and that the MW most likely hosts a massive CGM reservoir as those L~L* galaxies at z~0.2. I further study how baryons are cycled between the disk and CGM by observing gas accretion in M33. Using HST/COS to observe seven UV-bright stars in M33’s disk, I find that there is a layer of metal-enriched inflow moving towards M33 at a rate of dM/dt=2.9 Msun/yr. The gas inflow may be related to galactic fountain process or debris falling back down due to the potential past M31-M33 interaction. This work is among the first to unambiguously reveal the existence of a disk-wide, ionized galactic inflow beyond the Milky Way. In addition, with the same set of HST/COS sightlines, I make a serendipitous discovery of an ionized very-high-velocity cloud towards M33.

Thesis (Ph. D.)--University of Wisconsin, 1967. / Typescript. Vita. eContent provider-neutral record in process. Description based on print version record. Includes bibliographical references.

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<p>Between the years 1992 and 1995 about 3.5 million hadronic Z decays were collected by the DELPHI detector at CERN. This data has been used to measure the production and lifetime of the beauty strange baryon Ξ_b,</p><p>in the inclusive decay channel Ξ_b →Ξ^-ℓ^- X.</p><p>The Ξ^- baryon was reconstructed through the decay </p><p>Ξ^- → Λ π^-, using</p><p>a constrained fit method for cascade decays. An iterative</p><p>discriminant analysis was used for the Ξ_b selection.</p><p>A search for the Ξ_b baryon was also performed using</p><p>an alternative method of reconstructing the Ξ^- baryon.</p><p>A measurement of the production of the charmed strange </p><p>baryon Ξ_c in the decay channel Ξ_c→ Ξ^-π⁺ </p><p>using the same data is also presented.</p><p>The radiation monitoring system of the Silicon Microstrip Tracker </p><p>in the DØ detector is studied and used to estimate </p><p>the radiation dose received by the Silicon detector</p><p>during normal running conditions of the TeVatron accelerator.</p>

Copies of author's previously published works inserted. Bibliography: p. 56-57.

"October 2002" Bibliography: p. 129-136. 1. Introduction -- 2. QCD and the standard model -- 3. The Lattice -- 4. Symanzik improvement in the Static Quark Potential -- 5. Scale determination for an improved Gluon Action -- 6. Fat-link Irrelevant Clover Fermion actions -- 7. Excited Baryons in Lattice QCD -- 8. Spin 3/2 Baryons -- 9. Conclusion. This thesis reports work done in conducting numerical simulations of Lattice QCD.

"October 2002" / Bibliography: p. 129-136. / ix, 136 p. : ill. ; 30 cm. / Title page, contents and abstract only. The complete thesis in print form is available from the University Library. / This thesis reports work done in conducting numerical simulations of Lattice QCD. / Thesis (Ph.D.)--University of Adelaide, Dept. of Physics and Mathematical Physics, 2002