THEME02-0-1007-94/2005

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02-0-1007-94/2005

Priority:
Status:

1
In-progress

A T L A S
General-purpose pp Experiment at CERN's
Large Hadron Collider

Leader:

N. Russakovich

Scientific Programme:

The ATLAS Collaboration prepares a general-purpose pp experiment which would be operational at the start-up of the Large Hadron Collider (LHC) in order to exploit its full discovery potential. The LHC offers a large range of physics opportunities, among which the origin of mass at the electroweak scale is a major focus of interest. The detector optimization is therefore guided by physics issues such as sensitivity to the largest possible Higgs mass range, but also for example by detailed studies of top quark decays, supersymmetry searches, and sensitivity to large compositeness scales. The ability to cope with a broad variety of expected physics processes also demonstrates most importantly the detector's potential for unexpected new physics.
Many of the interesting physics questions at the LHC require high luminosity, and so the primary goal of the experiment is to operate at the standard high luminosity for LHC of 1.7· 10 ³⁴cm ^-2 s ^-1 with a detector that provides as many signatures as possible of new physics using electron, gamma, muon, jet, and missing transverse energy measurements.
Emphasis is also put on the performance necessary for physics accessible during the initial lower luminosity running. The experiment will address more complex signatures including tau detection and heavy flavour tags to as high a luminosity as practicable.
Finally, for a restricted set of signatures, the detector is conceived for safe performance even at the highest possible luminosities which could be delivered by the LHC.

Expected main results in 2001:

Optimization of procedures and techniques for assembly of muon tubes. Mass production of muon chambers at JINR.
Investigation of parameters and certification of PMTs.
Mass production of Liquid-Argon End-Cup Calorimeter, production of the temperature measuring system and the read-out electronics.
Investigation of radiation hardness of electronics and materials.
Development of relevant techniques and making of a full-scale prototype TRT.
Beginning of mass production of detection elements.
Development of the architecture and algorithms for the slow control system in co-operation with other collaborators.
Preparation of new proposals for the ATLAS physics programme.

Participating Institutes and Organizations

Armenia	YerPhI (Yerevan)
Azerbaijan	IP (Baku)
Belarus	IP, BSU, NC PHEP BSU, ISSP RINP BSU (Minsk)
Canada	TRIUMF (Vancouver), UM (Montreal)
CERN
Czech Republic	Charles Univ. (Prague)
France	Univ. (Clermont-Ferrand), LAL (Orsay)
Georgia	IP, HEPI TSU (Tbilisi)
Germany	MPIP (Munich)
Greece	Univ. (Athens)
Israel	WIS (Rehovot)
Italy	Univ. (Pisa)
Netherlands	NIKHEF (Amsterdam)
Russia	SRC-IHEP (Protvino), LPI, MEPI SSC-ITEP, CC, MSU (Moscow)
Slovak Republic	CU, IP (Bratislava)
Spain	IFAE (Barcelona)
Ukraine	USU (Uzhgorod), ISC (Kharkov)
USA	ANL (Argonne), LBNL (Berkeley)
Uzbekistan	SSU (Samarkand)

Next theme	Prev. theme
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A T L A S General-purpose pp Experiment at CERN's Large Hadron Collider

Leader:

Scientific Programme:

Participating Institutes and Organizations

A T L A S
General-purpose pp Experiment at CERN's
Large Hadron Collider