scholarly journals Depolarization due to beam-beam interaction in electron-positron linear colliders

1989 ◽  
Author(s):  
Kaoru Yokoya ◽  
Pisin Chen
Keyword(s):  
Electron Positron ◽  
Linear Colliders ◽  
Beam Interaction

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.

scholarly journals SINGLE PRODUCTION OF FOURTH FAMILY SNEUTRINO VIA RPV COUPLINGS AT LINEAR COLLIDERS

2012 ◽  
Vol 27 (28) ◽  
pp. 1250161
Author(s):  
O. ÇAKIR ◽  
S. KUDAY ◽  
İ. T. ÇAKIR ◽  
S. SULTANSOY
Keyword(s):  
Parity Violation ◽  
Indirect Measurements ◽  
Electron Positron ◽  
Linear Colliders ◽  
Single Production ◽  
Positron Collisions

The single production of fourth family sneutrino [Formula: see text] via R-parity violating interactions in electron–positron collisions has been investigated. We study the decays of [Formula: see text] into different flavor dilepton e±μ∓ via R-parity violation. It is shown that R-parity violating couplings (λ411, λ412) down to 0.001 will be reachable at future linear colliders which would provide better accuracy comparing to the indirect measurements as complementary to the LHC results.

scholarly journals Double elementary Goldstone Higgs boson production in future linear colliders

2018 ◽  
Vol 33 (08) ◽  
pp. 1850038
Author(s):  
Yu-Chen Guo ◽  
Chong-Xing Yue ◽  
Zhi-Cheng Liu
Keyword(s):  
Higgs Boson ◽  
Cross Sections ◽  
New Physics ◽  
Boson Production ◽  
Linear Electron ◽  
Higgs Boson Production ◽  
Electron Positron ◽  
The Standard Model ◽  
Linear Colliders ◽  
The Cross

The Elementary Goldstone Higgs (EGH) model is a perturbative extension of the Standard Model (SM), which identifies the EGH boson as the observed Higgs boson. In this paper, we study pair production of the EGH boson in future linear electron positron colliders. The cross-sections in the TeV region can be changed to about −27%, 163% and −34% for the [Formula: see text], [Formula: see text] and [Formula: see text] processes with respect to the SM predictions, respectively. According to the expected measurement precisions, such correction effects might be observed in future linear colliders. In addition, we compare the cross-sections of double SM-like Higgs boson production with the predictions in other new physics models.

R&D PROGRESS TOWARD FUTURE LINEAR COLLIDERS

2000 ◽  
Vol 15 (supp01b) ◽  
pp. 806-815
Author(s):  
GUSTAV-ADOLF VOSS
Keyword(s):  
Peak Power ◽  
Linear Collider ◽  
High Energy ◽  
High Peak Power ◽  
Rf Power ◽  
Electron Positron ◽  
Linear Colliders ◽  
Very High Energy ◽  
Very High ◽  
Low Emittance

During the last twenty years, there has been a world wide effort to develop the physics and technology of linear colliders. Present goals at SLAC, KEK, and DESY are to bring the R&D efforts to the point where proposals for 500/1000 GeV cms electron-positron colliders can be officially submitted in the years 2002/2003. The CLIC study at CERN aims at a second generation very high energy electron-positron collider, to be considered after completion of the LHC. The main areas of hardware R&D include efficient accelerating waveguides without harmful higher order mode (h.o.m.) effects, high peak power klystrons, klystron modulators, and rf-power compression. Test facilities have been put in place for the testing of h.o.m. behavior of new waveguide designs (ASSET), focusing of low emittance beams to spot sizes in the nanometer range (FFTB), and damping particle oscillations in a special damping ring (ATF) to prepare low emittance bunch trains of electrons for injection into linear colliders. The TESLA collaboration is making a major effort to develop the required technology for a superconducting linear collider. Test accelerator sections, which employ all the necessary new accelerator components, have been built and are currently being tested at SLAC and DESY.

R&D PROGRESS TOWARD FUTURE LINEAR COLLIDERS

1999 ◽  
Vol 14 (28) ◽  
pp. 1923-1931
Author(s):  
G.-A. VOSS
Keyword(s):  
Peak Power ◽  
Linear Collider ◽  
High Energy ◽  
High Peak Power ◽  
Rf Power ◽  
Electron Positron ◽  
Linear Colliders ◽  
Very High Energy ◽  
Very High ◽  
Low Emittance

During the last 20 years there has been a worldwide effort to develop the physics and technology of linear colliders. Present goals at SLAC, KEK and DESY are to bring the R&D efforts to the point where proposals for 500/1000 GeV cms electron–positron colliders can be officially submitted in the years 2002/2003. The CLIC study at CERN aims at a second generation very high energy electron–positron collider, to be considered after completion of the LHC. The main areas of hardware R&D include efficient accelerating waveguides without harmful higher order mode (h.o.m) effects, high peak power klystrons, klystron modulators and rf-power compression. Test facilities have been put in place for the testing of h.o.m behavior of new waveguide designs (ASSET), focusing on low emittance beams to spot sizes in the nanometer range (FFTB) and damping particle oscillations in a special damping ring (ATF) to prepare low emittance bunch trains of electrons for injection into linear colliders. The TESLA collaboration is making a major effort to develop the required technology for a superconducting linear collider. Test accelerator sections, which employ all the necessary new accelerator components, have been built and are currently being tested at SLAC and DESY.

Future Prospects of Gamma–Gamma Collider

2019 ◽  
Vol 10 (01) ◽  
pp. 215-226
Author(s):  
Tohru Takahashi
Keyword(s):  
Gamma Ray ◽  
High Energy ◽  
Wide Energy Range ◽  
High Energy Electron ◽  
Future Prospects ◽  
Electron Positron ◽  
Complementary Role ◽  
Linear Colliders ◽  
Wide Energy ◽  
Energy Frontier

Gamma–gamma colliders based on backward Compton scattering have been discussed mainly as an option for high energy electron–positron linear colliders, aiming to play a complementary role in energy frontier physics. The flexibility of gamma-ray beam by the Compton scheme, however, allows us to apply them to physics in a wide energy range, from MeV to TeV. In this paper, we review the future prospects of gamma–gamma colliders including recent discussions about Higgs boson factories and mid- and low-energy colliders as well as the option for electron–positron linear colliders.

scholarly journals Sources of Charged Higgs Pair through Double or Triple Higgs Production at Linear Colliders

2017 ◽  
Vol 2017 ◽  
pp. 1-7
Author(s):  
Ijaz Ahmed
Keyword(s):  
Cross Sections ◽  
Production Cross ◽  
Higgs Doublet ◽  
Higgs Production ◽  
Type Ii ◽  
Electron Positron ◽  
Charged Higgs ◽  
Linear Colliders ◽  
Doublet Model ◽  
Two Higgs Doublet Model

The production of triple Higgs (H+H-H0), (H+H-h0) and pairwise charged Higgs boson (H+H-) is studied in the context of future linear colliders within the two-Higgs-doublet model (2HDM) type II. The aim is to compare sources of charged Higgs pair through the above processes, that is, double and triple Higgs production. Cross sections are calculated at the leading order in 2HDM type II and Minimal Supersymmetric Standard Model (MSSM). Several orders of magnitude (~104) enhancement are observed in 2HDM compared to MSSM, while no sizable enhancement is seen in muon collider versus electron-positron collider. The analysis is based on a heavy charged Higgs with mass above 500 GeV. It is found that double charged Higgs production cross section (being the same in 2HDM and MSSM) is few femtobarns, while the triple Higgs production cannot exceed a fraction of femtobarn within the parameter space under study.

Sign in / Sign up

Export Citation Format

Share Document