NDLI: Commissioning the trigger of the Compact Muon Solenoid experiment at the CERN Large Hadron Collider

Content Provider	IEEE Xplore Digital Library
Author	Leonard, J.L.
Copyright Year	2010
Description	Author affiliation: Department of Physics, University of Wisconsin, Madison, 53706 USA (Leonard, J.L.)
Abstract	The Compact Muon Solenoid (CMS) experiment at the Large Hadron Collider (LHC) has taken cosmic-ray and colliding-beam data in 2009 and will be in continuous data-taking mode beginning at the end of February 2010. CMS detects the interaction products of proton beams colliding at a rate of 40 MHz. It uses a two-level trigger system to flag interesting events and reduce the event rate to a lower level, suitable for storage of full event data. The first-level trigger uses custom-built electronics to combine information from electromagnetic and hadronic calorimeters and muon detection systems to identify potential physics objects of interest with a target output rate of 100 kHz. The high-level trigger uses a computer farm to process the first-level information and more detailed detector readout including data from the pixels and tracker to reconstruct the event more fully and reduce the rate further to 100 Hz. For much of 2009, cosmic rays provided data for commissioning the trigger system. In addition, the 2009 LHC collision runs at 900 GeV and 2.36 TeV center-of-mass energy provided an opportunity to commission and study the performance of the trigger under colliding-beam conditions. This talk will report on the commissioning experience gained in the 2009 cosmic and collision runs and the 2010 collision run.
Starting Page	1
Ending Page	4
File Size	799152
Page Count	4
File Format	PDF
ISBN	9781424471089
e-ISBN	9781424471102
DOI	10.1109/RTC.2010.5750345
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2010-05-24
Publisher Place	Portugal
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Mesons Detectors Photonics Timing Large Hadron Collider Protons Electromagnetics
Content Type	Text
Resource Type	Article

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in

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