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High energy longitudinal electron polarimetry will be based on Compton scattering for the International Linear Collider. An unobtrusive measurement has to include a magnet chicane setup serving as a spectrometer. Current proposals make use…

Instrumentation and Detectors · Physics 2009-02-16 K. O. Eyser , C. Helebrant , D. Kaefer , J. List , U. Velte

The full exploitation of the physics potential of a future Linear Collider requires the development of polarised positron beams. A very promising scheme for the technical realisation is the use of helical undulators, generating circular…

High Energy Physics - Phenomenology · Physics 2011-09-13 Gudrid Moortgat-Pick

High energy photon colliders based on laser backscattering are a very natural extension of a e+e- linear colliders and open new possibilities to study of the matter. This option has been included in the pre-conceptual designs of linear…

High Energy Physics - Experiment · Physics 2015-06-25 Valery Telnov

There exists a world--wide consensus for a future $e^+e^-$ Linear Collider in the energy range between $\sqrt{s}=500--1000$ GeV as the next large facility in HEP. The Linear Collider has a large physics potential for the discovery of new…

High Energy Physics - Phenomenology · Physics 2009-11-10 Gudrid Moortgat-Pick

The International Linear Collider (ILC) is a future electron/positron collider at the energy frontier. Its physics goals are clearly focused on precision measurements at the electroweak scale and beyond. Beam energy and beam polarisation…

Instrumentation and Detectors · Physics 2015-06-22 Benedikt Vormwald

Plasma based acceleration is considered a promising concept for the next generation of linear electron-positron colliders. Despite the great progress achieved over last twenty years in laser technology, laser and beam driven particle…

Plasma Physics · Physics 2023-11-21 S. S. Bulanov , C. Benedetti , D. Terzani , C. B. Schroeder , E. Esarey , T. Blackburn , M. Marklund

Laser plasma accelerators have the potential to reduce the size of future linacs for high energy physics by more than an order of magnitude, due to their high gradient. Research is in progress at current facilities, including the BELLA…

Accelerator Physics · Physics 2013-10-01 C. G. R. Geddes , J. -L. Vay , C. B. Schroeder , E. Esarey , W. P. Leemans

The high intensity polarized electron source is a critical component for future nuclear physics facilities. The Electron Ion Collider (EIC) requires a polarized electron gun with higher voltage and higher bunch charge compared to any…

High energy e+e- linear colliders are the next large scale project in particle physics. They need intense sources to achieve the required luminosity. In particular, the positron source must provide about 10E+14 positrons per second. The…

Accelerator Physics · Physics 2014-12-11 S. Riemann , F. Staufenbiel , G. Moortgat-Pick , A. Ushakov

We consider a large number of pair production processes at future colliders (LHC, ILC) for values of the c.m. energy in the TeV range, where a logarithmic expansion of Sudakov kind would provide a reliable description of Split…

High Energy Physics - Phenomenology · Physics 2009-11-10 M. Beccaria , F. M. Renard , C. Verzegnassi

In the baseline design of the International Linear Collider (ILC) an undulator-based source is foreseen for the positron source in order to match the physics requirements. The recently chosen first energy stage with sqrt(s)=250 GeV requires…

The aim of the future linear colliders is to extend the sensitivity to new physics beyond the reach of the LHC. Several models predict the existence of new vector resonances in the multi-TeV region. We review the existing limits on the…

High Energy Physics - Phenomenology · Physics 2007-05-23 Stefania De Curtis

The planned next generation of linear colliders (NLCs) will be able to probe the infrared structure of Standard Model electroweak interactions, that determines the behavior of electroweak radiative corrections at TeV scale energies. I…

High Energy Physics - Phenomenology · Physics 2007-05-23 Paolo Ciafaloni

The design of the positron source for the International Linear Collider (ILC) is still under consideration. The baseline design plans to use the electron beam for the positron production before it goes to the IP. The high-energy electrons…

Accelerator Physics · Physics 2019-02-22 Felix Dietrich , Gudrid Moortgat-Pick , Sabine Riemann , Peter Sievers , Andriy Ushakov

Parity violating left-right scattering asymmetries at future high energy e+e- and e-e- colliders are examined. The utility of two polarized beams for precision measurements is pointed out. Sensitivity to ``new'' short-distance physics is…

High Energy Physics - Phenomenology · Physics 2011-04-15 Andrzej Czarnecki , William J. Marciano

We have built a polarimeter in order to measure the electron beam polarization in hall C at JLAB. Using a superconducting solenoid to drive the pure-iron target foil into saturation, and a symmetrical setup to detect the Moller electrons in…

Circularly polarized colliding laser pulses can create abundant electron-positron pair plasma [A. R. Bell and J. G. Kirk, Phys. Rev. Lett. 101, 200403 (2008)], which scattering the incoming electromagnetic waves can prevent them from…

I review the status of the comparisons between a few measurements at hadronic colliders and perturbative QCD predictions, which emphasize the need for improving the current computations. Such improvements will be mandatory for a…

High Energy Physics - Phenomenology · Physics 2007-05-23 S. Frixione

The design of the positron source for the International Linear Collider (ILC) is still under discussion. The baseline design plans to use the high-energy electron beam for the positron production before it goes to the IP. The electrons pass…

Accelerator Physics · Physics 2020-02-26 Sabine Riemann , Peter Sievers , Gudrid Moortgat-Pick , Andriy Ushakov

High energy particle colliders have been in the forefront of particle physics for more than three decades. At present the near term US, European and international strategies of the particle physics community are centered on full…

Accelerator Physics · Physics 2015-09-29 Vladimir Shiltsev