The Impact of BeamCal Performance at Different ILC Beam Parameters and Crossing Angles on τ̃ searches

نویسندگان

  • P. Bambade
  • W. Lohmann
چکیده

The ILC accelerator parameters and detector concepts are still under discussion in the worldwide 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 a small (0 or 2 mrad) and large (20 mrad) crossing angles and report about the veto performance study done. As illustration, the influence of several proposed beam parameter sets and crossing-angles on the signal to background ratio in the stau search is estimated for a particular realization of the super-symmetric model.

برای دانلود رایگان متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Development of Pair Monitor

Figure 1: A schematic view of the forward region. The pair monitor will be located in front of the BeamCal, where is about 400 cm from IP. At ILC, measurement of the beam profile at IP is important to keep high luminosity of 2 × 10 cms. The beam size at IP is 639 nm, 5.7 nm, and 300 μm for horizontal (σX), vertical (σY), and longitudinal beam size (σZ), respectively. Since the beam size, especi...

متن کامل

OPTIMIZATION OF THE ee OPTION FOR THE ILC

The e−e− running mode is one of the interesting physics options at the International Linear Collider (ILC). The luminosity for e−e− collisions is reduced by the beam-beam effects. The resulting beamstrahlung energy loss and beambeam deflection angles as function of the vertical transverse offset are different compared to the ee collisions. In this paper, the dependence of these observables with...

متن کامل

The 2mrad horizontal crossing angle IR layout for a TeV ILC

In this article, we describe the recent development of the 2mrad horizontal crossing angle scheme for the ILC. To date, two parallel designs have emerged: the first coming from the UK and France and the second from SLAC and BNL. We shall describe both schemes here, although they share many common features and are now being developed in parallel under the unified SLAC-BNL-UK-France task force co...

متن کامل

The Layout of the photon collider at the ILC ∗

One of the interaction regions at the linear colliders should be compatible both with e + e − and γγ,γe modes of operation. In this paper, the differences in requirements and possible design solutions are discussed. The photon collider (γγ, γe) is being considered as an " option " in the International Linear Collider (ILC) project [1–3], while e + e − collisions are " baseline ". In reality, th...

متن کامل

Photon production at the interaction point of the ILC

The intense beam-beam effect at the interaction point of the International Linear Collider (ILC) causes large disruption of the beams and the production of photons. These photons, arising dominantly through beamstrahlung emission, are problematic for the machine design as they need to be transported and dumped in a controlled way. In this work, we perform simulations of the beam-beam interactio...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

عنوان ژورنال:

دوره   شماره 

صفحات  -

تاریخ انتشار 2006