6,010 research outputs found
Electroweak and B Physics Results from the Fermilab Tevatron Collider
This writeup is an introduction to some of the experimental issues involved
in performing electroweak and B physics measurements at the Fermilab Tevatron.
In the electroweak sector, we discuss W and Z boson cross section measurements
as well as the measurement of the mass of the W boson. For B physics, we
discuss measurements of B^0/\bar{B^0} mixing and CP violation. This paper is
geared towards nonexperts who are interested in understanding some of the
issues and motivations for these measurements and how the measurements are
carried out.Comment: 42 pages, presented at the 2000 SLAC Summer Institut
Mixings, Lifetimes, Spectroscopy and Production of Heavy Flavor at the Tevatron
The Fermilab Tevatron offers unique opportunities to perform measurements of
the heavier B hadrons that are not accessible at the Upsilon(4S) resonance. In
this summary, we describe some recent heavy flavor results from the DO and CDF
collaborations and discuss prospects for future measurements.Comment: To appear in Proceedings of the XXI International Symposium on lepton
and Photon Interactions at High Energies, Fermilab, August 200
Searching for Doubly-Charged Higgs Bosons at Future Colliders
Doubly-charged Higgs bosons () appear in several
extensions to the Standard Model and can be relatively light. We review the
theoretical motivation for these states and present a study of the discovery
reach in future runs of the Fermilab Tevatron for pair-produced doubly-charged
Higgs bosons decaying to like-sign lepton pairs. We also comment on the
discovery potential at other future colliders.Comment: 6 pages, full postscript file also available via anonymous ftp at
ftp://ucdhep.ucdavis.edu/gunion/hmm_sm96.ps To appear in ``Proceedings of the
1996 DPF/DPB Summer Study on New Directions for High Energy Physics'
Prediction of Neutral Requirements for Letterpress Printing
This paper compares two systems for neutral requirement predictions in terms of % dot area values of halftone seperation negatives. The systems compared (to note a significant difference in the neutral requirement prediction) were the GATF system using the GATF Color Reproduction Guide as -control and the RIT system which calculates neutral requirements from empirical second degree equations. A significant difference between calculated values of neutral requirements for each prediction system was concluded
The Strategic Development of Irish Livestock Marts.
End of Project ReportA study of co-operative livestock marts revealed that cumulative marts turnover
decreased by 26% from 1990 to 1999: Commission income as a percentage
of turnover increased from 2% in 1990 to 3.2% in 1999. However operating
expenses increased by 25% from 1990 to 1999. Operating expenses have
since 1997, surpassed commision income, thus putting co-op marts in a
collective loss making situation from their mart activities. However overall
profit from co-op mart societies (including profit generated from all business
activities) almost doubled between 1990 and 1999. While overall profitability
of livestock marts societies has increased, twelve of thirty nine marts were in
a loss making situation in 1999. Four of these marts have been in a
permanent loss - making situation since 1990. All loss making societies in
1999 have little or no involvement in non-mart activities and almost all operate
from just one site. In general, the large diversified societies are showing
profitability.
A number of strategic alternatives to deal with their situation were placed before
mart executives. A diversification strategy is by far the most likely strategy to
be adopted by marts for the future Most marts are unlikely to consider
merging with other societies. Most marts have no plans to downsize and exit
from the industry is not considered an option by any society. There is a
recognition that there is an urgent need to rationalise the industry, but this
strategy is likely to meet with a strong resistance from marts . A problem with
rationalisation is that there are no incentives to make this strategy a reality.
On the one hand, management would be reluctant to follow this approach, as
it may be perceived to reflect badly on their own performance or may result in them being forced to seek alternative employment. On the other hand, the
shareholders have little to gain and much to lose if the mart closes.
Projections of past trends and impact of new policies would suggest continuing
decline in turnover and profitability in the co-operative mart sector.
Rationalisation is therefore absolutely essential. The industry cannot sustain
the present number of marts. Diversification seems the most obvious option
for the future of the industry. In general marts that have diversified are
profitable and there is no reason why this trend cannot continue into the
future
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