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Multimedia delivery in the future internet
The term “Networked Media” implies that all kinds of media including text, image, 3D graphics, audio
and video are produced, distributed, shared, managed and consumed on-line through various networks,
like the Internet, Fiber, WiFi, WiMAX, GPRS, 3G and so on, in a convergent manner [1]. This white
paper is the contribution of the Media Delivery Platform (MDP) cluster and aims to cover the Networked
challenges of the Networked Media in the transition to the Future of the Internet.
Internet has evolved and changed the way we work and live. End users of the Internet have been confronted
with a bewildering range of media, services and applications and of technological innovations concerning
media formats, wireless networks, terminal types and capabilities. And there is little evidence that the pace
of this innovation is slowing. Today, over one billion of users access the Internet on regular basis, more
than 100 million users have downloaded at least one (multi)media file and over 47 millions of them do so
regularly, searching in more than 160 Exabytes1 of content. In the near future these numbers are expected
to exponentially rise. It is expected that the Internet content will be increased by at least a factor of 6, rising
to more than 990 Exabytes before 2012, fuelled mainly by the users themselves. Moreover, it is envisaged
that in a near- to mid-term future, the Internet will provide the means to share and distribute (new)
multimedia content and services with superior quality and striking flexibility, in a trusted and personalized
way, improving citizens’ quality of life, working conditions, edutainment and safety.
In this evolving environment, new transport protocols, new multimedia encoding schemes, cross-layer inthe
network adaptation, machine-to-machine communication (including RFIDs), rich 3D content as well as
community networks and the use of peer-to-peer (P2P) overlays are expected to generate new models of
interaction and cooperation, and be able to support enhanced perceived quality-of-experience (PQoE) and
innovative applications “on the move”, like virtual collaboration environments, personalised services/
media, virtual sport groups, on-line gaming, edutainment. In this context, the interaction with content
combined with interactive/multimedia search capabilities across distributed repositories, opportunistic P2P
networks and the dynamic adaptation to the characteristics of diverse mobile terminals are expected to
contribute towards such a vision.
Based on work that has taken place in a number of EC co-funded projects, in Framework Program 6 (FP6)
and Framework Program 7 (FP7), a group of experts and technology visionaries have voluntarily
contributed in this white paper aiming to describe the status, the state-of-the art, the challenges and the way
ahead in the area of Content Aware media delivery platforms
An Effective Z'
We describe a method to couple Z' gauge bosons to the standard model (SM),
without charging the SM fields under the U(1)', but instead through effective
higher dimension operators. This method allows complete control over the
tree-level couplings of the Z' and does not require altering the structure of
any of the SM couplings, nor does it contain anomalies or require introduction
of fields in non-standard SM representations. Moreover, such interactions arise
from simple renormalizable extensions of the SM - the addition of vector-like
matter that mixes with SM fermions when the U(1)' is broken. We apply effective
Z' models as explanations of various recent anomalies: the D0 same-sign dimuon
asymmetry, the CDF W+di-jet excess and the CDF top forward-backward asymmetry.
In the case of the W+di-jet excess we also discuss several complementary
analyses that may shed light on the nature of the discrepancy. We consider the
possibility of non-Abelian groups, and discuss implications for the
phenomenology of dark matter as well.Comment: 44 pages; 5 figures. References added, discussion of gamma+jj
constraints update
A Proposal for a Three Detector Short-Baseline Neutrino Oscillation Program in the Fermilab Booster Neutrino Beam
A Short-Baseline Neutrino (SBN) physics program of three LAr-TPC detectors
located along the Booster Neutrino Beam (BNB) at Fermilab is presented. This
new SBN Program will deliver a rich and compelling physics opportunity,
including the ability to resolve a class of experimental anomalies in neutrino
physics and to perform the most sensitive search to date for sterile neutrinos
at the eV mass-scale through both appearance and disappearance oscillation
channels. Using data sets of 6.6e20 protons on target (P.O.T.) in the LAr1-ND
and ICARUS T600 detectors plus 13.2e20 P.O.T. in the MicroBooNE detector, we
estimate that a search for muon neutrino to electron neutrino appearance can be
performed with ~5 sigma sensitivity for the LSND allowed (99% C.L.) parameter
region. In this proposal for the SBN Program, we describe the physics analysis,
the conceptual design of the LAr1-ND detector, the design and refurbishment of
the T600 detector, the necessary infrastructure required to execute the
program, and a possible reconfiguration of the BNB target and horn system to
improve its performance for oscillation searches.Comment: 209 pages, 129 figure
Light Sterile Neutrinos in Particle Physics: Experimental Status
Most of the neutrino oscillation results can be explained by the
three-neutrino paradigm. However several anomalies in short baseline
oscillation data could be interpreted by invoking a hypothetical fourth
neutrino, separated from the three standard neutrinos by a squared mass
difference of more than 0.1 eV. This new neutrino, often called sterile,
would not feel standard model interactions but mix with the others. Such a
scenario calling for new physics beyond the standard model has to be either
ruled out or confirmed with new data. After a brief review of the anomalous
oscillation results we discuss the world-wide experimental proposal aiming to
clarify the situation.Comment: 14 pages, 2 figures. To appear in the proceedings of the 13th
International Conference on Topics in Astroparticle and Underground Physics,
TAUP 2013 (F. Avignone & W. Haxton, editors, Physics Procedia, Elsevier) ;
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