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ATLAS is a multipurpose experiment at the LHC. The tracking system of ATLAS, embedded in a 2 T solenoidal field, is composed of different technologies: silicon planar sensors (pixel and microstrips) and drift-tubes. The procedure used to…

Instrumentation and Detectors · Physics 2019-08-13 Ana Ovcharova

Due to the huge interaction rates and the tough experimental environment of pp collisions at a centre-of-mass energy sqrt(s)=14TeV and luminosities of up to 10^34 cm^-2 s^-1, one of the experimental challenges at the LHC is the triggering…

Instrumentation and Detectors · Physics 2019-08-14 Johannes Haller

This paper describes the small-diameter monitored drift-tube detector construction at the University of Michigan as a contribution to the ATLAS Muon Spectrometer upgrade for the high-luminosity Large Hadron Collider at CERN. Measurements of…

The ATLAS Muon Spectrometer is designed to measure the momentum of muons with a resolution of dp/p = 3% and 10% at 100 GeV and 1 TeV momentum respectively. For this task, the spectrometer employs 355,000 Monitored Drift Tubes (MDTs) arrayed…

After the high-luminosity upgrade of the Large Hadron Collider (LHC) at CERN, the ATLAS muon spectrometer is expected to work at 10 times increased background rates of gammas and neutrons. This is challenging as the momentum resolution of…

Instrumentation and Detectors · Physics 2011-03-28 Albert Engl , Otmar Biebel , Ralf Hertenberger , Alexander Mlynek , Thomas A. Mueller , Felix Rauscher

The resolution and efficiency of a precision drift-tube chamber for the ATLAS muon spectrometer with final read-out electronics was tested at the Gamma Irradiation Facility at CERN in a 100 GeV muon beam and at photon irradiation rates of…

Instrumentation and Detectors · Physics 2016-04-06 M. Deile , J. Dubbert , S. Horvat , O. Kortner , H. Kroha , A. Manz , S. Mohrdieck-Moeck , F. Rauscher , R. Richter , A. Staude , W. Stiller

The fission Time Projection Chamber (fissionTPC) is a compact (15 cm diameter) two-chamber MICROMEGAS TPC designed to make precision cross section measurements of neutron-induced fission. The actinide targets are placed on the central…

Large Resistive Plate Chamber systems have their roots in High Energy Physics experiments at the European Organization for Nuclear Research: ATLAS, CMS and ALICE, where hundreds of square meters of both trigger and timing RPCs have been…

Instrumentation and Detectors · Physics 2022-11-30 João Saraiva , Carlos Alemparte , Daniel Belver , Alberto Blanco , Juan Callón , Jose Collazo , Alfredo Iglesias , Luís Lopes

The performance of pressurized drift-tube detectors at very high background rates has been studied at the Gamma Irradiation Facility (GIF) at CERN and in an intense 20 MeV proton beam at the Munich Van-der-Graaf tandem accelerator for…

The innermost station of the present ATLAS forward muon detector needs to be upgraded for the super-LHC. We present a proposal to replace it with a sandwiched detector composed of several layers of small-radius Monitored Drift Tube chambers…

Instrumentation and Detectors · Physics 2012-10-26 Junjie Zhu

GASTOF (Gas Time-of-Flight) detector is a Cherenkov detector proposed for very precise (10--20 ps) arrival time measurements of forward protons at some 420 m from the central detectors of CMS and ATLAS. Such an excellent time resolution…

High Energy Physics - Phenomenology · Physics 2008-11-26 L. Bonnet , T. Pierzchala , K. Piotrzkowski , P. Rodeghiero

The ATLAS experiment is one of two large general-purpose particle detectors at the Large Hadron Collider (LHC) at the CERN laboratory in Geneva, Switzerland. ATLAS has been collecting data from the collisions of protons since December 2009,…

Instrumentation and Detectors · Physics 2010-08-18 E. A. Ouellette , A. Harris

In this work, we present a new approach for fast tracking on multiwire proportional chambers with neural networks. The tracking networks are developed and adapted for the first-level trigger at hadron collider experiments. We use Monte…

Instrumentation and Detectors · Physics 2022-11-17 Chang Sun , Takumi Nakajima , Yuki Mitsumori , Yasuyuki Horii , Makoto Tomoto

Diffractive physics program for ATLAS and CMS is discussed with emphasis on measurements of central exclusive processes. At low luminosities, a L1 trigger based on requiring rapidity gaps can be used, while at high luminosities, the use of…

High Energy Physics - Phenomenology · Physics 2009-10-28 Marek Tasevsky

A large number of high-energy and heavy-ion experiments successfully used Time Projection Chamber (TPC) as central tracker and particle identification detector. However, the performance requirements on TPC for new high-rate particle…

Instrumentation and Detectors · Physics 2013-02-14 M. Poli Lener , M. Bazzi , G. Corradi , C. Curceanu , A. D'Uffizi , C. Paglia , A. Romero Vidal , E. Sbardella , A. Scordo , D. Tagnani , J. Zmeskal

Small-diameter Drift Tube (sMDT) detectors with 15 mm tube diameter have proven to be excellent candidates for precision muon tracking detectors in experiments at future hadron colliders like HL-LHC and FCC-hh where unprecedentedly high…

Instrumentation and Detectors · Physics 2021-12-13 G. H. Eberwein , O. Kortner , H. Kroha , E. Voevodina

Single muon triggers are crucial for the physics programmes at hadron collider experiments. To be sensitive to electroweak processes, single muon triggers with transverse momentum thresholds down to 20 GeV and dimuon triggers with even…

Instrumentation and Detectors · Physics 2019-03-27 D. Cieri , S. Abovyan , V. Danielyan , M. Fras , P. Gadow , O. Kortner , S. Kortner , H. Kroha , F. Müller , S. Nowak , P. Richter , K. Schmidt-Sommerfeld

The ATLAS detector at CERN's Large Hadron Collider (LHC) will be exposed to proton-proton collisions from beams crossing at 40 MHz. At the design luminosity of 10^34 cm^-2 s^-1 there are on average 23 collisions per bunch crossing. A…

Instrumentation and Detectors · Physics 2014-11-18 David Berge

A Time Projection Chamber (TPC) is an ideal device for the detection of charged particle tracks in a large volume covering a solid angle of almost $4\pi$. The high density of hits on a given particle track facilitates the task of pattern…

Muonic final states will provide clean signatures formany physics processes at the LHC. The two LHC experiments ATLAS and CMS will be able to identify muons with a high reconstruction efficiency above 96% and a high transverse momentum…

High Energy Physics - Experiment · Physics 2007-07-09 Oliver Kortner