scholarly journals THE INTERNATIONAL LINEAR COLLIDER

2013 ◽  
Vol 28 (27) ◽  
pp. 1330039 ◽  
Author(s):  
BARRY BARISH ◽  
JAMES E. BRAU
Keyword(s):  
Particle Physics ◽  
Linear Collider ◽  
Hadron Collider ◽  
International Linear Collider ◽  
Collider Physics ◽  
International Consensus ◽  
Electron Positron ◽  
Superconducting Radio Frequency ◽  
Energy Frontier ◽  
Accelerator Design

In this paper, we describe the key features of the recently completed technical design for the International Linear Collider (ILC), a 200–500 GeV linear electron–positron collider (expandable to 1 TeV) that is based on 1.3 GHz superconducting radio-frequency (SCRF) technology. The machine parameters and detector characteristics have been chosen to complement the Large Hadron Collider physics, including the discovery of the Higgs boson, and to further exploit this new particle physics energy frontier with a precision instrument. The linear collider design is the result of nearly 20 years of R&D, resulting in a mature conceptual design for the ILC project that reflects an international consensus. We summarize the physics goals and capability of the ILC, the enabling R&D and resulting accelerator design, as well as the concepts for two complementary detectors. The ILC is technically ready to be proposed and built as a next generation lepton collider, perhaps to be built in stages beginning as a Higgs factory.

scholarly journals The future of the Large Hadron Collider and CERN

2012 ◽  
Vol 370 (1961) ◽  
pp. 986-994 ◽  
Author(s):  
Rolf-Dieter Heuer
Keyword(s):  
Large Hadron Collider ◽  
Particle Physics ◽  
Linear Collider ◽  
Hadron Collider ◽  
International Linear Collider ◽  
High Energy ◽  
Scientific Programme ◽  
Electron Positron ◽  
To Come ◽  
Energy Frontier

This paper presents the Large Hadron Collider (LHC) and its current scientific programme and outlines options for high-energy colliders at the energy frontier for the years to come. The immediate plans include the exploitation of the LHC at its design luminosity and energy, as well as upgrades to the LHC and its injectors. This may be followed by a linear electron–positron collider, based on the technology being developed by the Compact Linear Collider and the International Linear Collider collaborations, or by a high-energy electron–proton machine. This contribution describes the past, present and future directions, all of which have a unique value to add to experimental particle physics, and concludes by outlining key messages for the way forward.

Linear Colliders

2014 ◽  
Vol 07 ◽  
pp. 115-136
Author(s):  
Akira Yamamoto ◽  
Kaoru Yokoya
Keyword(s):  
Linear Collider ◽  
International Linear Collider ◽  
Electron Positron ◽  
Linear Colliders ◽  
Technical Design Report ◽  
Superconducting Rf ◽  
Technical Features ◽  
Energy Frontier ◽  
Conceptual Design Report

An overview of linear collider programs is given. The history and technical challenges are described and the pioneering electron–positron linear collider, the SLC, is first introduced. For future energy frontier linear collider projects, the International Linear Collider (ILC) and the Compact Linear Collider (CLIC) are introduced and their technical features are discussed. The ILC is based on superconducting RF technology and the CLIC is based on two-beam acceleration technology. The ILC collaboration completed the Technical Design Report in 2013, and has come to the stage of "Design to Reality." The CLIC collaboration published the Conceptual Design Report in 2012, and the key technology demonstration is in progress. The prospects for further advanced acceleration technology are briefly discussed for possible long-term future linear colliders.

R&D FOR FUTURE DETECTORS

2005 ◽  
Vol 20 (22) ◽  
pp. 5276-5286
Author(s):  
JAMES E. BRAU
Keyword(s):  
Large Hadron Collider ◽  
Research And Development ◽  
Particle Physics ◽  
Linear Collider ◽  
Hadron Collider ◽  
International Linear Collider ◽  
Physics Program ◽  
The Future ◽  
Detector Technology

Research and development of detector technology are critical to the future particle physics program. The goals of the International Linear Collider, in particular, require advances that are challenging, despite the progress driven in recent years by the needs of the Large Hadron Collider. The ILC detector goals and challenges are described and the program to address them is summarized.

scholarly journals The International Linear Collider Project—Its Physics and Status

Symmetry ◽  
2021 ◽  
Vol 13 (4) ◽  
pp. 674
Author(s):  
Hitoshi Yamamoto
Keyword(s):  
High Precision ◽  
Particle Physics ◽  
Linear Collider ◽  
International Linear Collider ◽  
High Sensitivity ◽  
Standard Theory ◽  
Higgs Particle ◽  
New Era ◽  
Electron Positron

The discovery of Higgs particle has ushered in a new era of particle physics. Even though the list of members of the standard theory of particle physics is now complete, the shortcomings of the theory became ever more acute. It is generally considered that the best solution to the problems is an electron–positron collider that can study Higgs particle with high precision and high sensitivity; namely, a Higgs factory. Among a few candidates for Higgs factory, the International Linear Collider (ILC) is currently the most advanced in its program. In this article, we review the physics and the project status of the ILC including its energy expandability.

scholarly journals Future e+e−Colliders at the Energy Frontier

2019 ◽  
Vol 206 ◽  
pp. 08001
Author(s):  
Tadeusz Lesiak
Keyword(s):  
Higgs Boson ◽  
Particle Physics ◽  
New Physics ◽  
Stages Of Development ◽  
Physics Program ◽  
Electron Positron ◽  
Energy Frontier

A future giant electron-positron collider, operating at the energy frontier, is a natural proposal in order to push particle physics into new regime of precise measurements, in particular in the sectors of electroweak observables and Higgs boson parameters. The four projects of such accelerators: two linear (ILC and CLIC) and two circular (FCC and CEPC) are currently in various stages of development. In view of the update of European HEP strategy for particle physics and expectations of important decisions from Japan, China and USA, the next few years will be critical as far as the decisions about the construction of such colliders are concerned. The paper concisely reviews the relevant aspects and challenges of the proposed accelerators and detectors along with the presumed schedules of construction and operation. The motivation and very attractive physics program for new e+e− colliders, spanning in particular perspectives in Higgs, electroweak, and neutrino sectors, together with expectations of searches for New Physics, will be discussed as well.

Preliminary conceptual design about the CEPC calorimeters

2016 ◽  
Vol 31 (33) ◽  
pp. 1644026 ◽  
Author(s):  
Haijun Yang
Keyword(s):  
Conceptual Design ◽  
Linear Collider ◽  
International Linear Collider ◽  
Electromagnetic Calorimeter ◽  
Hadronic Jets ◽  
Baseline Design ◽  
Active Sensor ◽  
Electron Positron ◽  
Physics Potential ◽  
Conceptual Design Report

The Circular Electron Positron Collider (CEPC) as a Higgs factory was proposed in September 2013. The preliminary conceptual design report was completed in 2015.1 The CEPC detector design was using International Linear Collider Detector — ILD2 as an initial baseline. The CEPC calorimeters, including the high granularity electromagnetic calorimeter (ECAL) and the hadron calorimeter (HCAL), are designed for precise energy measurements of electrons, photons, taus and hadronic jets. The basic resolution requirements for the ECAL and HCAL are about 16%[Formula: see text][Formula: see text] (GeV) and 50%[Formula: see text][Formula: see text] (GeV), respectively. To fully exploit the physics potential of the Higgs, [Formula: see text], [Formula: see text] and related Standard Model processes, the jet energy resolution is required to reach 3%–4%, or 30%/[Formula: see text] (GeV) at energies below about 100 GeV. To achieve the required performance, a Particle Flow Algorithm (PFA) — oriented calorimetry system is being considered as the baseline design. The CEPC ECAL detector options include silicon–tungsten or scintillator–tungsten structures with analog readout, while the HCAL detector options have scintillator or gaseous detector as the active sensor and iron as the absorber. Some latest R&D studies about ECAL and HCAL within the CEPC working group is also presented.

scholarly journals The measurement of the $$H\rightarrow \tau \tau $$ signal strength in the future $$e^{+}e^{-}$$ Higgs factories

2020 ◽  
Vol 80 (1) ◽  
Author(s):  
Dan Yu ◽  
Manqi Ruan ◽  
Vincent Boudry ◽  
Henri Videau ◽  
Jean-Claude Brient ◽  
...  
Keyword(s):  
Linear Collider ◽  
Simulation Analysis ◽  
Center Of Mass ◽  
International Linear Collider ◽  
Signal Strength ◽  
Relative Accuracy ◽  
Hadronic Decay ◽  
Beam Polarization ◽  
Baseline Design ◽  
Electron Positron

AbstractThe Circular Electron Positron Collider and the International Linear Collider are two electron-positron Higgs factories. They are designed to operate at a center-of-mass energy of 240 and 250 GeV and accumulate 5.6 and 2 $$ab^{-1}$$ab-1 of integrated luminosity. This paper estimates their performance on the $$H \rightarrow \tau ^{+}\tau ^{-}$$H→τ+τ- benchmark measurement. Using the full simulation analysis, the CEPC is expected to measure the signal strength to a relative accuracy of 0.8%. Extrapolating to the ILC setup, we conclude the ILC can reach a relative accuracy of 1.1% or 1.2%, corresponding to two benchmark beam polarization setups. The physics requirement on the mass resolution of the Higgs boson with hadronic decay final states is also discussed, showing that the CEPC baseline design and reconstruction fulfill the accuracy requirement of the $$H\rightarrow \tau ^{+}\tau ^{-}$$H→τ+τ- signal strength.

scholarly journals Indirect reach of heavy MSSM Higgs bosons by precision measurements at future lepton colliders

2015 ◽  
Vol 30 (33) ◽  
pp. 1550192 ◽  
Author(s):  
Mitsuru Kakizaki ◽  
Shinya Kanemura ◽  
Mariko Kikuchi ◽  
Toshinori Matsui ◽  
Hiroshi Yokoya
Keyword(s):  
Higgs Boson ◽  
Standard Model ◽  
W Boson ◽  
Linear Collider ◽  
Standard Model Prediction ◽  
Branching Fraction ◽  
International Linear Collider ◽  
Higgs Bosons ◽  
Boson Mass ◽  
Electron Positron

In the Minimal Supersymmetric Standard Model (MSSM), the bottom Yukawa coupling of the Higgs boson can considerably deviate from its Standard Model prediction due to nondecoupling effects. We point out that the ratio of the Higgs boson decay branching fraction to a bottom quark pair and that to a W-boson pair from the same production channel is particularly sensitive to large additional MSSM Higgs boson mass regions at future electron–positron colliders. Based on this precision measurement, we explicitly show the indirect discovery reach of the additional Higgs bosons according to planned programs of the International Linear Collider.

scholarly journals PRECISION CALCULATIONS FOR FUTURE COLLIDERS

2008 ◽  
Vol 17 (05) ◽  
pp. 826-844 ◽  
Author(s):  
U. BAUR
Keyword(s):  
Large Hadron Collider ◽  
Linear Collider ◽  
Hadron Collider ◽  
International Linear Collider ◽  
The Status

I discuss the motivations for, and the status of, precision calculations for the Large Hadron Collider (LHC) and the planned International Linear Collider (ILC).

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