3,049 research outputs found
Gauge singlet renormalisation in softly-broken supersymmetric theories
We consider the renormalisation of a softly-broken supersymmetric theory with
singlet fields and a superpotential with a linear term. We show that there
exist exact beta-functions for both the linear term in the superpotential and
the associated linear term in the Lagrangian. We also construct exact
renormalisation group invariant trajectories for these terms, corresponding to
the conformal anomaly solution for the soft masses and couplings.Comment: 13 pages, Plain TeX, uses Harvmac. Typos corrected and minor
clarification adde
Tail Bleeding in the Bovine
The coccygeal vein in the tail can be a convenient place from which to obtain a blood sample. This method is used mostly in dairy cows. Stock cows usually are not as well adapted for the use of this technique unless they are accustomed to being handled and are fairly docile; however, this technique can be used if there are only a few cows and if no chute is available. It is gratifying to hear farmers comment that the cows don\u27t seem to mind at all. Many dairy farmers do not like the use of the nose lead and certainly most cows will resist vigorously
Yukawa Textures and the mu-term
We show how with an anomaly-free U(1), simple assumptions concerning the
origin of Yukawa textures and the Higgs mu-term lead to the prediction of a new
physics scale of 10^8GeV and automatic conservation of baryon number.Comment: 12 pages, uses Harvmac (option "b"
High Weissenberg number simulations with incompressible Smoothed Particle Hydrodynamics and the log-conformation formulation
Viscoelastic flows occur widely, and numerical simulations of them are
important for a range of industrial applications. Simulations of viscoelastic
flows are more challenging than their Newtonian counterparts due to the
presence of exponential gradients in polymeric stress fields, which can lead to
catastrophic instabilities if not carefully handled. A key development to
overcome this issue is the log-conformation formulation, which has been applied
to a range of numerical methods, but not previously applied to Smoothed
Particle Hydrodynamics (SPH). Here we present a 2D incompressible SPH algorithm
for viscoelastic flows which, for the first time, incorporates a
log-conformation formulation with an elasto-viscous stress splitting (EVSS)
technique. The resulting scheme enables simulations of flows at high
Weissenberg numbers (accurate up to Wi=85 for Poiseuille flow). The method is
robust, and able to handle both internal and free-surface flows, and a range of
linear and non-linear constitutive models. Several test cases are considerd
included flow past a periodic array of cylinders and jet buckling. This
presents a significant step change in capabilties compared to previous SPH
algorithms for viscoelastic flows, and has the potential to simulate a wide
range of new and challenging applications.Comment: submitted to JNNFM Sept. 2020, revised March 202
Yukawa Textures and Anomaly Mediated Supersymmetry Breaking
We present a detailed analysis of how a mixed-anomaly-free U(1) symmetry can
be used to both resolve the slepton mass problem associated with Anomaly
Mediated Supersymmetry Breaking and generate the fermion mass hierarchy via the
Froggatt-Nielsen mechanism. Flavour changing neutral currents problems are
evaded by a specific form of the Yukawa textures.Comment: 33 pages, TeX, Uses Harvmac (big) and epsf. Added references and
minor changes and corrections. Improved texture discussio
Fashionette
Cover information surrounded by a minimal, artistic borderhttps://scholarsjunction.msstate.edu/cht-sheet-music/13738/thumbnail.jp
Bedrock Geology and Sea-Level History of Fayetteville Quadrangle, Washington County, Arkansas
A digital map depicting the detailed bedrock geology of Fayetteville Quadrangle, Washington County, Arkansas was produced at 1:24,000 scale. This map was developed utilizing state-of-the-art Geographic Information Systems technology and represents the most detailed map of the geology of Fayetteville Quadrangle that has been produced. In addition, the stratigraphy was interpreted to develop a regional sea-level history for the quadrangle. The bedrock geology of Fayetteville Quadrangle consists of sedimentary rocks of the Mississippian and Pennsylvanian systems. The Mississippian System is represented by (in ascending order) the Boone, Batesville, Fayetteville, and Pitkin Formations. The Pennsylvanian System is represented by (in ascending order) the Hale, Bloyd, and Atoka Formations. Each of these formations has members that were mapped at 1:24,000 scale, with the exception of the Hindsville Member of the Batesville Formation. Depositional environments represented by Fayetteville Quadrangle strata range from shallow marine to terrestrial and were interpreted to reflect the interplay of tectonics and eustasy during the Mississippian-Pennsylvanian Periods. Analysis of the apparent tempo and amplitude of sea-level variations suggests tectonic processes dominated over eustatic processes during these times. Within Fayetteville Quadrangle there are also several geologic structures that deserve further investigation. These structures include faults, fractures, domes, and so-called collapse or subsidence structures
Bedrock Geology of West Fork Quadrangle, Washington County, Arkansas
A digital geologic map of West Fork quadrangle was produced at 1:24,000 scale using the geographic information system (GIS) software Maplnfo. Data regarding stratigraphic relations observed in the field were digitized onto the United States Geological Survey (USGS) digital raster graphic (DRG) of West Fork quadrangle. The geology of West Fork quadrangle consists of sedimentary rocks of the Mississippian and Pennsylvanian systems. The Fayetteville Shale and Pitkin Formation represent the Mississippian system. The Hale, Bloyd, and Atoka Formations represent the Pennsylvanian System. Each of these formations consists of members that were mapped at 1:24,000 scale, and this mapping effort represents the first time stratigraphic members were mapped utilizing digital technologies at this scale in West Fork quadrangle. The Hale Formation consists of the Cane Hill Member and the Prairie Grove Member. The Bloyd Formation consists of the Brentwood Member, the Woolsey Member, the Dye Member, and the Kessler Member. The Atoka Formation in West Fork quadrangle includes the Trace Creek Member at its base. The overlying units of the Atoka Formation occur as unnamed alternating sandstone and shale units. The most prominent geologic structure in West Fork quadrangle is the Fayetteville Fault, which crosses the northwest quarter of the quadrangle. Several additional faults are associated with a fault zone surrounding the Fayetteville Fault. Another prominent normal fault was mapped striking east-west (downthrown to the south) in the southern part of the quadrangle
- …