Cone-shell

Definitions

  • Chambers's Twentieth Century Dictionary
    • ns Cone-shell a family of Gasteropod molluscs, with substantial conical shells
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Etymology

Chambers's Twentieth Century Dictionary
Fr. cone—L.,—Gr. kōnos, a peak, a peg.

Usage

In literature:

These shells are given a wide cone of dispersion.
"Aeroplanes and Dirigibles of War" by Frederick A. Talbot
For the house in general there were some ingenious arrangements in fir cones and small shells.
"The Malady of the Century" by Max Nordau
On Saturday the mistress would blow a cone shell and they knowed to go and get the rations.
"Slave Narratives: A Folk History of Slavery in the United States From Interviews with Former Slaves" by Work Projects Administration
This shell grew neither in the flat spiral nor the cone-shaped form of Earth mollusks.
"Operation: Outer Space" by William Fitzgerald Jenkins
The axis of the cone is a woody shell, enclosing a wide pith and covered by a thick cortex traversed by resin-ducts.
"The Genus Pinus" by George Russell Shaw
In going to the river for water, we passed an oven, where they baked the cones for casting shell over.
"In and Out of Rebel Prisons" by Lieut. A. [Alonzo] Cooper
The figure but faintly shows the contour of this shell, which is a perfect cone.
"Beautiful Shells of New Zealand" by E. G. B. Moss
Another rare and remarkable shell of this numerous genus, from the same collection as the Cone last described.
"Zoological Illustrations, Volume II" by William Swainson
Among the specially beautiful shells are the cone-shells, the olive-shells, the ivory-shells, etc.
"Elementary Zoology, Second Edition" by Vernon L. Kellogg
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In science:

The results of calculations, presented in Fig. 1 clearly demonstrate the fact that, if r → 1 , the mass shell in a space of kinematic 4-momenta converges (nonuniformly) to a light cone.
Concerning the generalized Lorentz symmetry and the generalization of the Dirac equation
Since these singularities come from the wave function and the scattering amplitude of off-shell partons do not contain the same light-cone singularities, the kT -factorization is violated not only in the case studied here but also in all cases.
Gauge Invariance and k_T-Factorization of Exclusive Processes
The contributions of scattering of off-shell partons do not contain light-cone singularities, while the wave function of the B -meson contains these singularities, according to our results.
Gauge Invariance and k_T-Factorization of Exclusive Processes
With off-shell partons we show that the hard part at oneloop contains a light-cone singularity in the general covariant gauge.
Gauge Invariance and k_T-Factorization of Exclusive Processes
Our results indicate that the wave function of B -mesons with off-shell partons also contain light-cone singularities.
Gauge Invariance and k_T-Factorization of Exclusive Processes
The usual Dirac equation where the matrices γ a fulfill a Clifford algebra and where M is proportional to the unit matrix, can be derived from the additional assumptions (v) uniquenes of the null cones, (vi) two helicity states only, and (vii) uniqueness of the mass shell, compare [4, 5].
Testing the Dirac equation
Since the shell is expanding relativistically, the radiation (emitted isotropically in the bulk frame) is beamed into a cone with with opening angle Γ−1 (the bulk Lorentz factor of the material in the shell).
Gamma-Ray Summary Report
From this one would conclude that the off-shell matrix elements and the unintegrated parton distributions are defined as the appropriate field theory Green functions in light-cone gauge.
Small x Phenomenology: Summary and Status
Fig. 3 Light cone is shown (time vs log10 (r)) for tn1 = α The solid line curve shows the shell focussing area R = 0 at t = tn .
An Inhomogeneous Model Universe Behaving Homogeneously
The shell focussing singularity crosses the light cone at z−values well above the last scattering surface which is outside the range of applicability of our model, although it may also be avoided using suitable inhomogeneity parameter.
An Inhomogeneous Model Universe Behaving Homogeneously
If this happens then we cannot argue that the light cones of the traditional black hole geometry trap the information of the shell forever and lead to information loss.
Fuzzballs and the information paradox: a summary and conjectures
On the other hand, the Polyakov formulation gives us only the S -matrix; one cannot go off shell, whereas the light-cone formulation gives us a complete quantum mechanical theory where we are not restricted to infinite times and can go off shell, allbeit noncovariantly.
Factorization in Dual Models and Functional Integration in String Theory
This parameterization together with taking the world-sheet metric to be flat leads to the mass-shell condition 2p+p− = Z dσ((∂τ X I )2 + (∂σX I )2) := H, with H the world-sheet Hamiltonian and p− and p+ the integrated light-cone momenta.
Symmetries and interactions in matrix string theory
In light-cone gauge the restricted supersymmetry transformations form the off-shell supersymmetry algebra.
Nonforward anomalous dimensions of Wilson operators in N=4 super-Yang-Mills theory
Starting from the light-cone Lagrangian for pure gravity we make these relations manifest off-shell, for three- and four-graviton vertices, at the level of the action.
KLT relations from the Einstein-Hilbert Lagrangian
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