27,678 research outputs found
Rotable accurate reflector system for telscopes Patent
Development of reflector system for application to line-of-sight pointing and tracking telescope
Recent CMS searches for exotic phenomena beyond the Standard Model
The results of several recent CMS searches for exotic phenomena beyond the
Standard Model are presented in this talk. Two searches look for new physics in
a final state with a vector boson and missing transverse energy. Three searches
target massive resonances decaying to a Higgs boson and a vector boson.
Finally, preliminary results are presented for the first CMS search for exotic
phenomena using TeV data, the search for dijet resonances.Comment: Presentation at the DPF 2015 Meeting of the American Physical Society
Division of Particles and Fields, Ann Arbor, Michigan, August 4-8, 201
Thinking outside the beamspot: Other SUSY searches at the LHC (long-lived particles and R-parity violation)
Supersymmetric particles that are long-lived or violate R-parity could evade
many conventional searches for supersymmetry. This talk presents the latest
results of searches for supersymmetry with long-lived particles or R-parity
violation performed by the ATLAS and CMS collaborations using 20
fb of proton-proton collisions at center-of-mass energy of 8 TeV
delivered by the LHC.Comment: Submitted to Proceedings of Rencontres de Moriond QCD 201
Optical astronomy package feasibility study for Apollo applications program Executive summary report
Feasibility of adapting optical astronomy package to Apollo Application Program missions on lunar surfac
Preliminary considerations of optical telescopes for lunar surface use
Design considerations of astronomical telescopes for lunar surface observatio
Shock-operated valve would automatically protect fluid systems
Glandless valve shuts down high-pressure fluid systems when severe shock from an explosion or earthquake occurs. The valve uses a pendulum to support the valve closure plug in the open position. When jarred, the valve body is moved relative to the pendulum and the plug support is displaced, allowing the plug to seat and be held by spring pressure
Hidden-Sector Higgs Bosons at High-Energy Electron-Positron Colliders
The possibility of a scalar messenger that can couple the Standard Model (SM)
to a hidden sector has been discussed in a variety of contexts in the
literature in recent years. We consider the case that a new scalar singlet
charged under an exotic spontaneously broken Abelian gauge symmetry mixes
weakly with the SM Higgs resulting in two scalar mass states, one of which has
heavily suppressed couplings to the SM particles. Previous phenomenological
studies have focussed on potential signatures for such a model at the Large
Hadron Collider (LHC). However, there are interesting regions of the parameter
space in which the heavier Higgs state would be out of reach for LHC searches
if its mass is greater than 1 TeV. We therefore investigate the discovery
potential for such a particle at a 3 TeV electron-positron collider, which is
motivated by the recent developments of the Compact Linear Collider (CLIC). We
find that such an experiment could substantially extend our discovery reach for
a heavy, weakly coupled Higgs boson, and we discuss three possible search
channels.Comment: 14 pages, 8 Figures. Published as an LCD Not
Detailed Skylab ECS consumables analysis for the interim revision flight plan (November, 1972, SL-1 launch)
The consumables analysis was performed for the Skylab 2, 3, and 4 Preliminary Reference Interim Revision Flight Plan. The analysis and the results are based on the mission requirements as specified in the flight plan and on other available data. The results indicate that the consumables requirements for the Skylab missions allow for remaining margins (percent) of oxygen, nitrogen, and water nominal as follows: 83.5, 90.8, and 88.7 for mission SL-2; 57.1, 64.1, and 67.3 for SL-3; and 30.8, 44.3, and 46.5 for SL-4. Performance of experiment M509 as scheduled in the flight plan results in venting overboard the cluster atmosphere. This is due to the addition of nitrogen for propulsion and to the additional oxygen introduced into the cabin when the experiment is performed with the crewman suited
Traffic scenario generation technique for piloted simulation studies
Piloted simulation studies of cockpit traffic display concepts require the development of representative traffic scenarios. With the exception of specific aircraft interaction issues, most research questions can be addressed using traffic scenarios consisting of prerecorded aircraft movements merged together to form a desired traffic pattern. Prerecorded traffic scenarios have distinct research advantages, allowing control of traffic encounters with repeatability of scenarios between different test subjects. A technique is described for generation of prerecorded jet transport traffic scenarios suitable for use in piloted simulation studies. Individual flight profiles for the aircraft in the scenario are created interactively with a computer program designed specifically for this purpose. The profiles are then time-correlated and merged into a complete scenario. This technique was used to create traffic scenarios for the Denver, Colorado area with operations centered at Stapleton International Airport. Traffic scenarios for other areas may also be created using this technique, with appropriate modifications made to the navigation fix locations contained in the flight profile generation program
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