| Paper |
Title |
Page |
| MOPLT049 |
A Very High-beta Optics to be used for an Absolute Luminosity Determination with Forward Detectors in ATLAS
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659 |
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- A. Faus-Golfe
IFIC, Valencia
- I. Efthymiopoulos, P. Grafstrom, M. Rijssenbeek
CERN, Geneva
- M. Haguenauer
Ecole Polytechnique, Palaiseau
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Atlas detector at the LHC pursues a number of different approaches to obtain an estimate of the absolute luminosity. Measuring elastic scattering at very small angles (3 mu rad) represents a different and complimentary approach that will improve the precision of the final luminosity estimate. In this paper we show the required very hihg-beta optics, detector acceptance studies, and running conditions and calculated performance for the proposed forward detectors located near the ATLAS interaction region.
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| MOPLT050 |
High-beta and Very High-beta Optics for LHC
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662 |
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- A. Faus-Golfe
IFIC, Valencia
- A. Verdier
CERN, Geneva
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New high-beta and very high-beta optics has been sought in order to find the best possible configuration for measuring total cross section in TOTEM and absolute luminosity in ATLAS. They are based on nominal powering scheme of the low-beta triplet. A list of the various possible solution is given in this report. A particularly interesting solution has been found for a case where the phase advance in both planes at the detector location are close to pi/2.
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