The impact of BeamCal performance at different international linear collider beam parameters and crossing angles on $$ \tilde \tau $$ searches

  title={The impact of BeamCal performance at different international linear collider beam parameters and crossing angles on \$\$
\tilde \tau 
\$\$ searches},
  author={Ph. Bambade and Vladimir Drugakov and Wolfgang Lohmann},
The ILC accelerator parameters and detector concepts are still under discussion in the world-wide community. As will be shown, the performance of the BeamCal, the calorimeter in the very forward area of the ILC detector, is very sensitive to the beam parameter and crossing angle choices. We propose here BeamCal designs for small (0 or 2 mrad) and large (20 mrad) crossing angles and report about the veto performance study done. As an illustration, the influence of several proposed beam parameter… 

Measurement of shower development and its Molière radius with a four-plane LumiCal test set-up

A prototype of a luminometer, designed for a future $$e^+e^-$$e+e- collider detector, and consisting at present of a four-plane module, was tested in the CERN PS accelerator T9 beam. The objective of

Forward Calorimeters for the Future Eletron-Positron Linear Collider Detectors

In future electron-positron collider detectors, special calorimeters are needed in the very forward region; one of them, the Beam Calorimeter (BeamCal) is designed as a GaAs-Tungsten sandwich

R&D for Very Forward Calorimeters at the ILC Detector

Special calorimeters are needed to instrument the very forward region of an ILC detector. These devices will improve the hermeticity being important for new particle searches. A luminometer is

Forward Instrumentation for ILC Detectors

Two special calorimeters are foreseen for the instrumentation of the very forward region of the ILC detector, a luminometer designed to measure the rate of low angle Bhabha scattering events with a

Performance of fully instrumented detector planes of the forward calorimeter of a Linear Collider detector

Detector-plane prototypes of the very forward calorimetry of a future detector at an e+e− collider have been built and their performance was measured in an electron beam. The detector plane comprises

Shedding light on the dark sector with direct WIMP production

A weakly interacting massive particle (WIMP) provides an attractive dark matter candidate, and should be within reach of the next generation of high-energy colliders. We consider the process of

The design of the ILD forward region

Following the decision to reduce the L* from 4.4 m to 4.1 m, the BeamCal had to be moved closer to the interaction point. Results of a study of how this affects the beamstrahlung and backward



Instrumentation of the very forward region of a linear collider detector

  • W. Lohmann
  • Physics
    2003 IEEE Nuclear Science Symposium. Conference Record (IEEE Cat. No.03CH37515)
  • 2003
The very forward region of a linear collider detector is a particularly challenging area for instrumentation. For the TESLA project a luminometer (LAT) at small polar angles is foreseen to perform a

Experimental Implications for a Linear Collider of the SUSY Dark Matter Scenario

This talk presents the detection issues for the lightest slepton \tilde{\tau}_1 at a future e+e- TeV collider given the dark matter constraints set on the SUSY mass spectrum by the WMAP results. Two

Physics Benchmarks for the ILC Detectors

Now that the RF technology of the ILC has been chosen, concepts are taking shape for the design, components, and optimization of the detectors [1–3]. At the same time, a program of RD ii) studies of

Compensation of the Effects of Detector Solenoid on the Vertical Beam Orbit in NLC(LCC-0143)

In this note we consider compensation of the vertical angle at the IP that arises when the NLC beam enters the detector solenoid. While this angle is antisymmetric for e{sup +}e{sup -} collisions and

Compensation of the effects of a detector solenoid on the vertical beam orbit in a linear collider

This paper presents a method for compensating the vertical orbit change through the interaction region that arises when the beam enters the linear collider detector solenoid at a crossing angle. Such

Suggested ILC Beam Parameter Range


    • Nucl. Instrum. Meth. A
    • 2003

    et al . [ GEANT 4 Collaboration ] , GEANT 4 : A SIMULATION TOOLKIT

    • Nucl . Instrum . Meth . A
    • 2003

    Study of Electromagnetic and Hadronic Background in the Interaction Region of the TESLA Collider

    • TESLA 97-08,
    • 1996