9,812 research outputs found
Prospects of searching for composite resonances at the LHC and beyond
Composite Higgs models predict the existence of resonances. We study in
detail the collider phenomenology of both the vector and fermionic resonances,
including the possibility of both of them being light and within the reach of
the LHC. We present current constraints from di-boson, di-lepton resonance
searches and top partner pair searches on a set of simplified benchmark models
based on the minimal coset , and make projections for the reach of
the HL-LHC. We find that the cascade decay channels for the vector resonances
into top partners, or vice versa, can play an important role in the
phenomenology of the models. We present a conservative estimate for their reach
by using the same-sign di-lepton final states. As a simple extrapolation of our
work, we also present the projected reach at the 27 TeV HE-LHC and a 100 TeV
collider.Comment: 61 pages, 13 figures; accepted version of JHE
Open community : break up the superblock
This thesis proposes a redesign of the superblocks of Wuhan (China)
Non-coherent Massive SIMO Systems in ISI Channels: Constellation Design and Performance Analysis
A massive single-input multiple-output (SIMO) system with a single transmit
antenna and a large number of receive antennas in intersymbol interference
(ISI) channels is considered. Contrast to existing energy detection (ED)-based
non-coherent receiver where conventional pulse amplitude modulation (PAM) is
employed, we propose a constellation design which minimizes the symbol-error
rate (SER) with the knowledge of channel statistics. To make a comparison, we
derive the SERs of the ED-based receiver with both the proposed constellation
and PAM, namely and . Specifically, asymptotic
behaviors of the SER in regimes of a large number of receive antennas and high
signal-to-noise ratio (SNR) are investigated. Analytical results demonstrate
that the logarithms of both and decrease
approximately linearly with the number of receive antennas, while
degrades faster. It is also shown that the proposed design is of less cost,
because compared with PAM, less antennas are required to achieve the same error
rate
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