Open Access. Powered by Scholars. Published by Universities.®
- Keyword
-
- Hadron-Hadron Scattering (64)
- CMS (52)
- Hadron-Hadron Scattering (Experiments) (48)
- Physics (39)
- Supersymmetry (22)
-
- Beyond Standard Model (20)
- Integrated luminosity (15)
- Top Physics (14)
- Higgs Physics (10)
- Tellurium compounds (9)
- Higgs (8)
- CMS detectors (7)
- Cross section (7)
- Data sample (6)
- Jets (6)
- Production cross section (6)
- Proton-Proton Scattering (6)
- Bosons (5)
- Confidence levels (5)
- Forward Physics (5)
- Video Inspection (5)
- 3-D Inspection (4)
- Center-of-mass energy (4)
- Dark Matter (4)
- Photons (4)
- Proton-proton collisions (4)
- Top Quark (4)
- Upper limits (4)
- Branching fractions (3)
- Electroweak Interaction (3)
Articles 271 - 275 of 275
Full-Text Articles in Physics
Perturbations Of Gravitational Instantons, Charles G. Torre
Perturbations Of Gravitational Instantons, Charles G. Torre
Aerospace, Physics, and Space Science Faculty Publications
Ashtekar's spinorial formulation of general relativity is used to study perturbations of gravitational instantons corresponding to finite-action solutions of the Euclidean Einstein equations (with a nonzero cosmological constant) possessing an anti-self-dual Weyl curvature tensor. It is shown that, with an appropriate "on-shell" form of infinitesimal gauge transformations, the space of solutions to the can be described in terms of an elliptic complex; the cohomology of the complex defines gauge-inequivalent perturbations. Using this elliptic complex we prove that there are no nontrivial solutions to the linearized instanton equation on conformally anti-self-dual Einstein spaces with a positive cosmological constant. Thus, the space …
Hamiltonian Formulation Of Induced Gravity In Two Dimensions, Charles G. Torre
Hamiltonian Formulation Of Induced Gravity In Two Dimensions, Charles G. Torre
Aerospace, Physics, and Space Science Faculty Publications
A Hamiltonian formulation of the theory of induced gravity in two dimensions is constructed. This formulation differs from previous efforts in that the formalism is covariant under all relevant transformation groups. In particular, spatial diffeomorphism covariance and/or invariance is manifest throughout; the phase space carries a representation of the Lie algebra of the spacetime diffeomorphism group; the group of conformal isometries is projectively represented on the phase space as a symmetry group. The key ingredient that allows covariance with respect to the above groups is the enlargement of the gravitational phase space by the inclusion of the cotangent bundle over …
Generation Of Moire Contours With Acousto-Optic Cells, Joel H. Blatt, Huey-Chin Chang Ho, Eddie H. Young
Generation Of Moire Contours With Acousto-Optic Cells, Joel H. Blatt, Huey-Chin Chang Ho, Eddie H. Young
Aerospace, Physics, and Space Science Faculty Publications
Moire contours are seen on a curved surface viewed through a grating when the surface is illuminated with a matched grating. We have been able to replace both the projection and viewing physical gratings with gratings of variable spacing generated in acousto-optic cells, and have been able to observe and record Moire contours. The gratings are generated by amplitude modulating 70 MHz AO cells with a 1 to 10 MHz square wave. The gratings become visible on the curved object by strobing the illuminating laser beam with 50 nsec pulses by means of an AO modulator. Data is given showing …
Activity Coefficient And The Einstein Relation, Peter T. Landsberg, Albert G. Guy
Activity Coefficient And The Einstein Relation, Peter T. Landsberg, Albert G. Guy
Aerospace, Physics, and Space Science Faculty Publications
A connection between the activity coefficient of current carriers and the Einstein relations is established by two methods, one based on normal semiconductor concepts and one based on irreversible thermodynamics. The connection holds for all densities of states, for Fermi degeneracy, and in the presence of heavy doping.
Mossbauer Measurements With '"Au In Aua1„Auga„Auin„And Ausb, John O. Thomson, Felix E. Obenshain, Paul G. Huray, John C. Love, John W. Burton
Mossbauer Measurements With '"Au In Aua1„Auga„Auin„And Ausb, John O. Thomson, Felix E. Obenshain, Paul G. Huray, John C. Love, John W. Burton
Aerospace, Physics, and Space Science Faculty Publications
Mossbauer spectra for '"Au in Au metal and the intermetallic compounds AuAl„AuGa„AuIn„and AuSb2 have been obtained for the temperature range 4.2 to 95'K. The isomer shifts for these absorbers with respect to a ' Au in Pt source are —1.223(2) [Au metal], + 2.288(12) [AuSb2], + 3.489(4) [AuIn2], +4.450(11) [AuGa, ], and +.5.967(5) [AuAl, ] in units of mm/sec. The difference in isomer shifts (alloy-Au-metal) may be interpreted in terms of an increasing electron charge density at the Au nucleus in the alloys as compared to that of Au metal. When volume changes for the alloys with respect to the …