1,335 research outputs found

    Post freeze-out annihilations in the early universe

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    We investigate the possible effect of the residual annihilations of heavy particles after freeze-out from equilibrium in the early universe. An error in previous work on this subject is pointed out and the correct method of solving the Boltzmann equation for this case is developed. For Majorana particles there are significant differences relative to previous work.Comment: 5 pages REVTEX, to appear in Phys. Lett.

    Study of the winter 2005 Antarctica polar vortex

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    During winter and springtime, the flow above Antarctica at high altitude (upper troposphere and stratosphere) is dominated by the presence of a vortex centered above the continent. It lasts typically from August to November. This vortex is characterized by a strong cyclonic jet centered above the polar high. In a recent study of our group (Hagelin et al., 2008) of four different sites in the Antarctic internal plateau (South Pole, Dome C, Dome A and Dome F), it was made the hypothesis that the wind speed strength in the upper atmosphere should be related to the distance of the site to the center of the Antarctic polar vortex. This high altitude wind is very important from an astronomical point of view since it might trigger the onset of the optical turbulence and strongly affect other optical turbulence parameters. What we are interested in here is to localize the position of the minimum value of the wind speed at high altitude in order to confirm the hypothesis of Hagelin et al. (2008).Comment: 3rd ARENA conference, 11-15 May 2009 EAS Publication Serie

    Inclusive CP Asymmetries in Semileptonic Decays of B Mesons

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    We estimate the sensitivity of single lepton CP violation measurements with respect to that of traditional di-lepton measurements. We find that the sensitivity of the single lepton method is better than that of the di-lepton method. The achievable sensitivity with the currently available data is already in the range relevant to standard model predictions. We also give general expressions for inclusive decay time distributions on Υ4S\Upsilon 4S where the other BB is not measured, which will be used to obtain time dependent asymmetries. The expression is of general use whenever one deals with inclusive time-dependent as well as time-integrated measurements in Υ(4S)→B0Bˉ0\Upsilon(4S)\to B^0\bar B^0 where the final state of the other BB is not reconstructed or when only the time difference is measured.Comment: 7 pages, 1 figure. Two references added, and a few typos correcte

    A dedicated tool for a full 3D Cn2 investigation

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    We present in this study a mapping of the optical turbulence (OT) above different astronomical sites. The mesoscale model Meso-NH was used together with the Astro-Meso-Nh package and a set of diagnostic tools allowing for a full 3D investigation of the Cn2. The diagnostics implemented in the Astro-Meso-Nh, allowing for a full 3D investigation of the OT structure in a volumetric space above different sites, are presented. To illustrate the different diagnostics and their potentialities, we investigated one night and looked at instantaneous fields of meteorologic and astroclimatic parameters. To show the potentialities of this tool for applications in an Observatory we ran the model above sites with very different OT distributions: the antarctic plateau (Dome C, Dome A, South Pole) and a mid-latitude site (Mt. Graham, Arizona). We put particular emphasis on the 2D maps of integrated astroclimatic parameters (seeing, isoplanatic angles) calculated in different slices at different heights in the troposhere. This is an useful tool of prediction and investigation of the turbulence structure. It can support the optimization of the AO, GLAO and MCAO systems running at the focus of the ground-based telescopes.From this studies it emerges that the astronomical sites clearly present different OT behaviors. Besides, our tool allowed us for discriminating these sites.Comment: 7 pages, 5 figures, SPIE 2010 conferenc

    BEYOND MIRACLES: THE DISCOVERY OF THE UNIFIED FIELD AND ITS PRACTICAL APPLICATIONS TO PREVENT CRIME, TERRORISM, AND INTERNATIONAL CONFLICT

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    The lawst, most profound discoveries of quantum physics provide deep insight into ultimate reality, and how we create our own day-to-day reality. \'('e must now harness this cuning-edge knowledge to create a peaceful, harmoniolls, more enlightened world. For this purpose, intellectual discllssion is not enough. Only direct, repeatahle experience of ultimate reality can create the deep, lasting transformations in the individual and sockty so urgently needed today. Recent breakthroughs in quantum physics reveal the ultimate reality: the "unified field"-the field of universal intelligence at the hasis of mind and matter. The unified field is the fountainhead of all the laws of nature-the source of all the order displayed throughout the vast cosmos. Human awareness can directly experience and access this field of universal intelligence using advanced meditation techniques derived from the ancient Vedic wisdom. This fundamental experience of "pure consciousness" represents a fourth major state of consciousness, distinct from waking. dreaming and deep sleep. In this higher state of consciousness, human awareness becomes aligned with cosmic intelligence: thoughts and actions become powerfully dfective-life supporting and globally enriching. Such "enlightened" individuals are peacemakers by nawre. radiating peace and harmony throughout their environment. New research reveals that enlighrenment, the full developmcnr of human potential. is our birthright-a spontaneous byproduct of integrated brain functioning. New research also reveals the existence of longrange "field effects" of consciollsness generated through collective meditation. More than 50 studies have shown that such field effects of consciousness have a profound impact on society as a whole, defusing acute socieral stress. violence and conflict, and providing a practical fi)undation for pt'rmanent world peace. \'(,'e are thus on the threshold of a global transfilrmation to a post-dual, unified field-bast-d civilization of affluence and peace based on the knowledge, and direct experience, of the core unity of lite in higher states of consciousness

    BEYOND MIRACLES: THE DISCOVERY OF THE UNIFIED FIELD AND ITS PRACTICAL APPLICATIONS TO PREVENT CRIME, TERRORISM, AND INTERNATIONAL CONFLICT

    Get PDF
    The lawst, most profound discoveries of quantum physics provide deep insight into ultimate reality, and how we create our own day-to-day reality. \'('e must now harness this cuning-edge knowledge to create a peaceful, harmoniolls, more enlightened world. For this purpose, intellectual discllssion is not enough. Only direct, repeatahle experience of ultimate reality can create the deep, lasting transformations in the individual and sockty so urgently needed today. Recent breakthroughs in quantum physics reveal the ultimate reality: the "unified field"-the field of universal intelligence at the hasis of mind and matter. The unified field is the fountainhead of all the laws of nature-the source of all the order displayed throughout the vast cosmos. Human awareness can directly experience and access this field of universal intelligence using advanced meditation techniques derived from the ancient Vedic wisdom. This fundamental experience of "pure consciousness" represents a fourth major state of consciousness, distinct from waking. dreaming and deep sleep. In this higher state of consciousness, human awareness becomes aligned with cosmic intelligence: thoughts and actions become powerfully dfective-life supporting and globally enriching. Such "enlightened" individuals are peacemakers by nawre. radiating peace and harmony throughout their environment. New research reveals that enlighrenment, the full developmcnr of human potential. is our birthright-a spontaneous byproduct of integrated brain functioning. New research also reveals the existence of longrange "field effects" of consciollsness generated through collective meditation. More than 50 studies have shown that such field effects of consciousness have a profound impact on society as a whole, defusing acute socieral stress. violence and conflict, and providing a practical fi)undation for pt'rmanent world peace. \'(,'e are thus on the threshold of a global transfilrmation to a post-dual, unified field-bast-d civilization of affluence and peace based on the knowledge, and direct experience, of the core unity of lite in higher states of consciousness
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