2,646 research outputs found
CLIC e+e- Linear Collider Studies - Input to the Snowmass process 2013
This paper addresses the issues in question for Energy Frontier Lepton and
Gamma Colliders by the Frontier Capabilities group of the Snowmass 2013 process
and is structured accordingly. It will be accompanied by a paper describing the
Detector and Physics studies for the CLIC project currently in preparation for
submission to the Energy Frontier group.Comment: Submitted to the Snowmass process 2013. arXiv admin note: substantial
text overlap with arXiv:1208.140
Instrumentation for high-energy physics
The rst part of this summary contains a description of the passage of particles through matter. The basic physics processes for charged particles, photons, neutrons and neutrinos are mostly electromagnetic (collision losses described by Bethe-Bloch, bremsstrahlung, photo-electric effect, Compton scattering and pair production) for charged particles and photons; additional strong interactions for hadrons; neutrinos interacting weakly with matter. Concepts like radiation length, electromagnetic showers, nuclear interaction/absorption length and showers are covered. Important processes like multiple scattering, Cherenkov radiation, transition radiation, and dE=dx for particle identi cation are described next. This is followed by a short discussion of momentum measurement in magnetic elds. The last part of the summary covers particle detection by means of ionization detectors, scintillation detectors and semiconductor detectors. Signal processing is brie y discussed at the end
A primary electron beam facility at CERN
This document describes the concept of a primary electron beam facility at
CERN, to be used for dark gauge force and light dark matter searches. The
electron beam is produced in three stages: A Linac accelerates electrons from a
photo-cathode up to 3.5 GeV. This beam is injected into the Super Proton
Synchrotron, SPS, and accelerated up to a maximum energy of 16 GeV. Finally,
the accelerated beam is slowly extracted to an experiment, possibly followed by
a fast dump of the remaining electrons to another beamline. The beam parameters
are optimized using the requirements of the Light Dark Matter eXperiment, LDMX,
as benchmark
Machine Parameters and Projected Luminosity Performance of Proposed Future Colliders at CERN
In response to a request from the CERN Scientific Policy Committee (SPC), the
machine parameters and expected luminosity performance for several proposed
post-LHC collider projects at CERN are compiled: three types of hadron
colliders (HL-LHC upgrade, FCC-hh and HE-LHC), a circular lepton collider
(FCC-ee), a linear lepton collider (CLIC), and three options for lepton-hadron
colliders (LHeC, HE-LHeC, and FCC-eh). Particular emphasis is put on
availability, physics run time, and efficiency. The information contained in
this document was presented at the SPC Meeting of September 2018. It will serve
as one of the inputs to the 2019/20 Update of the European Strategy for
Particle Physics
CLIC e+e- Linear Collider Studies
This document provides input from the CLIC e+e- linear collider studies to
the update process of the European Strategy for Particle Physics. It is
submitted on behalf of the CLIC/CTF3 collaboration and the CLIC physics and
detector study. It describes the exploration of fundamental questions in
particle physics at the energy frontier with a future TeV-scale e+e- linear
collider based on the Compact Linear Collider (CLIC) two-beam acceleration
technique. A high-luminosity high-energy e+e- collider allows for the
exploration of Standard Model physics, such as precise measurements of the
Higgs, top and gauge sectors, as well as for a multitude of searches for New
Physics, either through direct discovery or indirectly, via high-precision
observables. Given the current state of knowledge, following the observation of
a \sim125 GeV Higgs-like particle at the LHC, and pending further LHC results
at 8 TeV and 14 TeV, a linear e+e- collider built and operated in
centre-of-mass energy stages from a few-hundred GeV up to a few TeV will be an
ideal physics exploration tool, complementing the LHC. Two example scenarios
are presented for a CLIC accelerator built in three main stages of 500 GeV, 1.4
(1.5) TeV, and 3 TeV, together with the layout and performance of the
experiments and accompanied by cost estimates. The resulting CLIC physics
potential and measurement precisions are illustrated through detector
simulations under realistic beam conditions.Comment: Submitted to the European Strategy Preparatory Grou
A primary electron beam facility at CERN
This paper describes the concept of a primary electron beam facility at CERN,
to be used for dark gauge force and light dark matter searches. The electron
beam is produced in three stages: A Linac accelerates electrons from a
photo-cathode up to 3.5 GeV. This beam is injected into the Super Proton
Synchrotron, SPS, and accelerated up to a maximum energy of 16 GeV. Finally,
the accelerated beam is slowly extracted to an experiment, possibly followed by
a fast dump of the remaining electrons to another beamline. The beam parameters
are optimized using the requirements of the Light Dark Matter eXperiment (LDMX)
as benchmark.Comment: 3 pages, 3 figure
The CLIC Programme: Towards a Staged e+e- Linear Collider Exploring the Terascale : CLIC Conceptual Design Report
This report describes the exploration of fundamental questions in particle
physics at the energy frontier with a future TeV-scale e+e- linear collider
based on the Compact Linear Collider (CLIC) two-beam acceleration technology. A
high-luminosity high-energy e+e- collider allows for the exploration of
Standard Model physics, such as precise measurements of the Higgs, top and
gauge sectors, as well as for a multitude of searches for New Physics, either
through direct discovery or indirectly, via high-precision observables. Given
the current state of knowledge, following the observation of a 125 GeV
Higgs-like particle at the LHC, and pending further LHC results at 8 TeV and 14
TeV, a linear e+e- collider built and operated in centre-of-mass energy stages
from a few-hundred GeV up to a few TeV will be an ideal physics exploration
tool, complementing the LHC. In this document, an overview of the physics
potential of CLIC is given. Two example scenarios are presented for a CLIC
accelerator built in three main stages of 500 GeV, 1.4 (1.5) TeV, and 3 TeV,
together with operating schemes that will make full use of the machine capacity
to explore the physics. The accelerator design, construction, and performance
are presented, as well as the layout and performance of the experiments. The
proposed staging example is accompanied by cost estimates of the accelerator
and detectors and by estimates of operating parameters, such as power
consumption. The resulting physics potential and measurement precisions are
illustrated through detector simulations under realistic beam conditions.Comment: 84 pages, published as CERN Yellow Report
https://cdsweb.cern.ch/record/147522
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