نتایج جستجو برای: wimp
تعداد نتایج: 1118 فیلتر نتایج به سال:
The exact formulae for the capture of WIMPS (weakly interacting massive particles) by a massive body are derived. Capture by the earth is found to be significantly enhanced whenever the WIMP mass is roughly equal to the nuclear mass of an element present in the earth in large quantities. For Dirac neutrino WIMPS of mass 10 to 90 GeV, the capture rate is 10 to 300 times that previously believed....
*Correspondence: Sofiane M. Boucenna, Edificio de Institutos de Paterna, Instituto de Física Corpuscular – C.S.I.C./ Universitat de València, Apartado 22085, E–46071 València, Spain e-mail: [email protected] There exists a widely known conjecture that gravitational effects violate global symmetries. We study the effect of global-symmetry violating higher-dimension operators induced by Planck-...
In the current era every interactive system provides User Interfaces (UIs) or interaction features. WIMP (Window, Icon, Menu, Pointing device) denotes interactive systems based on mouse and keyboard interactions to manipulate widgets such as windows, menus and dialogue boxes. Post-WIMP interactive systems aim at going beyond these concepts to notably reduce the gap between the user and the syst...
The count rate of Weakly Interacting Massive Particle (WIMP) dark matter candidates in direct detection experiments experiences an annual modulation due to the Earth’s motion around the Sun. In the standard isothermal halo model, the signal peaks near June 2nd at high recoil energies; however, the signal experiences a phase reversal and peaks in December at low energy recoils. We show that this...
We report results of a search for weakly interacting massive particles (WIMPS) with the silicon detectors of the CDMS II experiment. This blind analysis of 140.2 kg day of data taken between July 2007 and September 2008 revealed three WIMP-candidate events with a surface-event background estimate of 0.41(-0.08)(+0.20)(stat)(-0.24)(+0.28)(syst). Other known backgrounds from neutrons and 206Pb ar...
The count rate of Weakly Interacting Massive Particle (WIMP) dark matter candidates in direct detection experiments experiences an annual modulation due to the Earth’s motion around the Sun. In standard isothermal halo models, the signal peaks near June 2nd at high recoil energies, but experiences a phase reversal at low recoil energies, peaking in December. We show that this phase reversal may...
We demonstrate that if the universe is dominated by the massive cold dark matter, then besides the generally believed thermal distribution of the dark matter relics, there may exist some very energetic non-thermal relics of the dark matter particles in the universe from some unknown sources, such as from decay of supermassive X particle released from topological defect collapse or annihilation....
We demonstrate that if the universe is dominated by the massive cold dark matter, then besides the generally believed thermal distribution of the dark matter relics, there may exist some very energetic non-thermal relics of the dark matter particles in the universe from some unknown sources, such as from decay of supermassive X particle released from topological defect collapse or annihilation....
SIMPLE (Superheated Instrument for Massive ParticLE searches) employs superheated droplet detectors (SDDs) to search for Weakly Interacting Massive Particle (WIMP) dark matter. As a result of the intrinsic SDD insensitivity to minimum ionizing particles and high fluorine content of target liquids, competitive WIMP limits were already obtained at the early prototype stage. We comment here on the...
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