scholarly journals Beam dynamics of the interaction region solenoid in a linear collider due to a crossing angle

2003 ◽  
Vol 6 (6) ◽  
Author(s):  
P. Tenenbaum ◽  
J. Irwin ◽  
T. O. Raubenheimer
Keyword(s):  
Linear Collider ◽  
Interaction Region ◽  
Beam Dynamics

scholarly journals Plasma Lens Backgrounds at a Future Linear Collider

2003 ◽  
Vol 18 (16) ◽  
pp. 2857-2869
Author(s):  
Achim W. Weidemann ◽  
P. Chen ◽  
C.-K. Ng
Keyword(s):  
Linear Collider ◽  
Interaction Region ◽  
Interaction Processes ◽  
Linear Colliders ◽  
Beam Parameters ◽  
Event Rates ◽  
Different Sources ◽  
Detector Technology ◽  
Future Linear Collider

A 'plasma lens' might be used to enhance the luminosity of future linear colliders. However, its utility for this purpose depends largely on the potential backgrounds that may be induced by the insertion of such a device in the interaction region of the detector. In this note we identify different sources of such backgrounds, calculate their event rates from the elementary interaction processes, and evaluate their effects on the major parts of a hypothetical Next Linear Collider (NLC) detector. For plasma lens parameters which give a factor of seven enhancement of the luminosity, and using the NLC design for beam parameters as a reference, we find that the background yields are fairly high, and require further study and improvements in detector technology to avoid their impact.

scholarly journals HEAVY MESON PRODUCTION AT A LOW-ENERGY PHOTON COLLIDER

2005 ◽  
Vol 20 (31) ◽  
pp. 7294-7305
Author(s):  
STEPHEN ASZTALOS
Keyword(s):  
Linear Collider ◽  
Meson Production ◽  
Heavy Meson ◽  
Interaction Region ◽  
Low Energy ◽  
Energy Photon ◽  
Heavy Mesons ◽  
Photon Collider

A low-energy γγ collider has been discussed in the context of a testbed for a γγ interaction region at the Next Linear Collider (NLC). We consider the production of heavy mesons at such a testbed using Compton-backscattered photons and demonstrate that their production rivals or exceeds those by BELLE, BABAR or LEP where they are produced indirectly via virtual γγ luminosities.

A Photon Collider Testbed at the SLC

2003 ◽  
Vol 18 (16) ◽  
pp. 2921-2926
Author(s):  
Jeff Gronberg
Keyword(s):  
Electron Beam ◽  
Linear Collider ◽  
Laser Pulses ◽  
High Energy ◽  
Interaction Region ◽  
Test Bed ◽  
Energy Photon ◽  
Operational Conditions ◽  
Compton Backscattering ◽  
Photon Collider

The idea of producing a high-energy photon-photon collider1, based on Compton backscattering of laser photons from an electron beam, was proposed in the early 1980's. In this idea, a linear e+ e- collider must be upgraded with high power lasers and an interaction region including optics to focus the laser pulses onto the electron beam. Recently, a strawman design for such an interaction region has been produced. Given the existence of the mothballed Stanford Linear Collider it becomes reasonable to propose a photon collider test bed, which would allow that design to be tested in actual operational conditions.

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