2,462 research outputs found
Energy Spectra and Energy Correlations in the Decay
It is shown that in the sequential decay , the energy distribution of the final state particles provides
a simple and powerful test of the vertex. For a standard Higgs boson, the
energy spectrum of any final fermion, in the rest frame of , is predicted to
be , with
and . By contrast, the spectrum for a
pseudoscalar Higgs is . There are
characteristic energy correlations between and and between
and . These considerations are applied to the ``gold--plated''
reaction , including possible effects of
CP--violation in the coupling. Our formalism also yields the energy
spectra and correlations of leptons in the decay .Comment: 14 pages + 4 figure
Discussant\u27s response to the sample of one: Indispensable or indefensible?
https://egrove.olemiss.edu/dl_proceedings/1057/thumbnail.jp
Evidence that the Pomeron transforms as a non-conserved vector current
The detailed dependences of central meson production on the azimuthal angle
phi, t and the meson J^P are shown to be consistent with the hypothesis that
the soft Pomeron transforms as a non-conserved vector current. Further tests
are proposed. This opens the way for a quantitative description of q-qbar and
glueball production in p p -> p M p.Comment: 12 pages, latex, 4 figure
A subalgebra of the Hardy algebra relevant in control theory and its algebraic-analytic properties
We denote by A_0+AP_+ the Banach algebra of all complex-valued functions f
defined in the closed right half plane, such that f is the sum of a holomorphic
function vanishing at infinity and a ``causal'' almost periodic function. We
give a complete description of the maximum ideal space M(A_0+AP_+) of A_0+AP_+.
Using this description, we also establish the following results:
(1) The corona theorem for A_0+AP_+.
(2) M(A_0+AP_+) is contractible (which implies that A_0+AP_+ is a projective
free ring).
(3) A_0+AP_+ is not a GCD domain.
(4) A_0+AP_+ is not a pre-Bezout domain.
(5) A_0+AP_+ is not a coherent ring.
The study of the above algebraic-anlaytic properties is motivated by
applications in the frequency domain approach to linear control theory, where
they play an important role in the stabilization problem.Comment: 17 page
One Health in food safety and security education: Subject matter outline for a curricular framework.
Educating students in the range of subjects encompassing food safety and security as approached from a One Health perspective requires consideration of a variety of different disciplines and the interrelationships among disciplines. The Western Institute for Food Safety and Security developed a subject matter outline to accompany a previously published One Health in food safety and security curricular framework. The subject matter covered in this outline encompasses a variety of topics and disciplines related to food safety and security including effects of food production on the environment. This subject matter outline should help guide curriculum development and education in One Health in food safety and security and provides useful information for educators, researchers, students, and public policy-makers facing the inherent challenges of maintaining and/or developing safe and secure food supplies without destroying Earth's natural resources
The isotopic composition of cosmic rays with 5 is less than or equal to z which is less than or equal to 26
Results obtained from a high altitude balloon flight from Thompson, Canada in August, 1973 are reported. The instrument consisted of a spark chamber, a Lucite Gerenkov counter and thirteen layers of scintillators. For heavy particles the Cerenkov-range method of analysis was used to determine the mass of particles energetic enough to produce a Cerenkov signal and then stop in the layered scintillators. The data appear to be consistent with current cosmic-ray propagation models. Using a simple exponential path length propagation model this data is extrapolated to the cosmic-ray source and some implications of the data are discussed as to the nature of the source
Ultraschallmikroskopie im oberen Aerodigestivtrakt: Erste klinische Erfahrungen
Zusammenfassung: Hintergrund: Erste klinische Erfahrungen mit der Ultraschallmikroskopie im Bereich der oberen Luft- und Speisewege werden beschrieben. Patienten und Methoden: In der vorliegenden Pilotstudie wurden 20 gesunde Probanden und 10 Patienten, die aufgrund einer Veränderung von Mundhöhle, Rachen oder Kehlkopf operiert wurden, mit einem neuen Prototyp eines Ultraschallmikroskops untersucht. Ergebnisse: Insgesamt konnten 24 normale und 6 pathologische Befunde im Bereich des oberen Aerodigestivtrakts erhoben werden. Dabei handelte es sich einerseits um normale Schleimhaut von Mundboden, Wange, Gaumen und Stimmlippe, andererseits um Karzinome des Mundbodens, der aryepiglottischen Falte und der Stimmlippe. Des Weiteren wurden ein Papillom des Gaumenbogens und 2Epiglottiszysten ultraschallmikroskopisch untersucht. Schlussfolgerung: Unsere Untersuchungen zeigen, dass die Ultraschallmikroskopie der Hohlorgane in den Bereich des Möglichen gerückt ist. Hierbei unterscheiden sich pathologische Läsionen deutlich von normalem Epithel. Zur Erkennung von Gesetzmäßigkeiten bei Veränderungen von Mundhöhle, Rachen und Kehlkopf sind jedoch weitere Untersuchungen mit wesentlich größeren Fallzahlen nöti
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