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Topic: The D0 Experiment

In the News (Sun 27 Dec 09)

Northern Trust

Marvin Harrison

Peter Chernin

Gary Locke

Match Play

Penelope Cruz

Mickey Rourke

AR Rahman

Danny Boyle

Hugh Jackman

	Mark Strovink
		After the discovery in 1995 by CDF and D0 of the top quark, we measured its mass with a combined 3% error, yielding (with other inputs) a stringent test of loop corrections to the Standard Model and an early hint that the Higgs boson is light.
		While studying data from the 1992-1996 CDF and D0 samples that contain both an electron and a muon, we became aware of three events that cannot easily be attributed either to top quark decay or to backgrounds.
		Generally this is because the transverse momenta of the leptons (electrons, muons, and neutrinos as inferred from transverse momentum imbalance) are unexpectedly large.
	www.physics.berkeley.edu /research/faculty/Strovink.html (591 words)

	[No title]
		The D0 experiment is a research instrument, which is made available to you as a graduate student when you join the experiment.
		D0 is a large and complex experiment, but it does not need to be intimidating.
		Unfortunately, this pitfall is not rare in D0; I consider avoiding it to be one of the major challenges facing the D0 physics groups.
	cnr2.kent.edu /~keane/D0.txt (1869 words)

	The D0nik Simulation and Analysis Farm
		Within the D0 collaboration similar facilities will be operational in Prague, Lyon, Lancaster, Texas and we can profit greatly of this experience and we shall be able to take a significant fraction of the required system software from Fermilab.
		D0 and Fermilab are currently testing tape media for data import/export between Fermilab and the collaborating institutes and universities.
		Based on this experience we should then define the parameters of the final farm and should have a detailed specification on what has to be purchased, so negotiations with the PC makers can start about prices and delivery times.
	www.nikhef.nl /~bosk/documents/docs2000/farm-proposal.htm (2447 words)

	D0 Management document.
		To maintain good standing after the initial year (that is, to remain an active author), all scientists on the experiment are expected to continue to contribute the major fraction of their research time to DZero (but, again, at least 12 hours per week) in any of the areas described in the items (a)-(g).
		For major conferences where abstracts and/or conference proceedings are required, a member of D0 will be appointed by the spokesperson to see that the abstracts and/or papers are written in a timely manner and coordinate the submission of the D0 abstracts to the conference.
		The only one that the D0 Speakers Bureau has to advise and approve is the Fermilab Wine and Cheese, which is special because that is where new D0 results are presented to the general physics community.
	d0server1.fnal.gov /projects/Spokes/documents/d0_manage_sept97.html (6617 words)

	UNDERGRADUATE PHYSICS RESEARCH OPPORTUNITIES
		The experiment is the study of the charmonium spectrum by detecting the annihilations of stored antiprotons with protons in a hydrogen gas jet.
		Experiments there are likely to discover new particles and phenomena, and provide insights into questions such as why various particles have mass and why their masses are different.
		D0 was one of two experiments at FNAL which discovered the top quark in 1995.
	www.ps.uci.edu /physics/reuprojects99.html (1656 words)

	D0 Experiment (Site not responding. Last check: 2007-10-08)
		In 1995, the top quark was discovered by the DØ and CDF experiments in a sample of about 100 events collected during the Run I data taking at Fermilab's Tevatron collider.
		The top quark immediately stood out from the other fundamental particles due to the fact that it is much more massive than any of the others.
		The experiment uses a 5000 ton detector to observe millions of interactions each second at the world's most powerful particle accelerator.
	www.phy.olemiss.edu /HEP/d0 (224 words)

	The D0 Experiment at FermiLab (Site not responding. Last check: 2007-10-08)
		The D0 experiment at FermiLab involves research on the more fundamental elements of physics.
		The experiment seeks to identify the building blocks of our universe and to further understand how do they interact with eachother.
		The D0 experiment began watching the "stuff" come out on May 12 1992 and started its second round in May 2001.
	www2.latech.edu /~tforest/REST/D0.html (125 words)

	Experimental High-Energy Physics and Astrophysics
		The L3 experiment at LEP is based on a large magnetic detector optimized for the precision measurement of photons, electrons, muons, and hadron jets.
		SMILI is an experiment that measures the elemental and isotopic composition of cosmic rays from helium to oxygen through the use of a magnetic spectrometer using electronic particle detectors.
		The ATLAS Experiment is a large detector system being developed by a collaboration of physicists from all around the world to study very-high-energy proton-proton interactions at the Large Hadron Collider at CERN.
	physics.bu.edu /bu/exh.html (2640 words)

	[No title]
		The project goals are to build upon the success of my current ARP grant which enabled the completion of the Forward Proton Detector (FPD), a new sub-detector of the D0 experiment.
		This new experiment will have large discovery potential due the high center of mass energy of its accelerator, seven times the energy of the Fermilab collider.
		The University of Texas at Arlington (UTA) is a key member of both the international D0 and ATLAS experiments, constructing the FPD and parts of the calorimeter for both experiments.
	www-hep.uta.edu /~brandta/arp_2003_v1.doc (586 words)

	Particle Physics (Site not responding. Last check: 2007-10-08)
		He has made major contributions to the development of the D0 experiment's Level 3 trigger, led the development and implementation of a state-of-the-art data acquisition system, and was co-chair of the New Phenomena group for two years.
		Currently, he is involved in the D0 experiment operating at the Tevatron accelerator at Fermi National Laboratory, and in electronics development and other efforts in preparation for the ATLAS experiment being built for operation at the future Large Hadron Collider at CERN in Geneva.
		He has built the front-end calorimeter electronics for the D0 experiment and was the Co-Project Manager for a major upgrade of the D0 experiment that is taking data.
	columbia-physics.net /research/hep_faculty.htm (754 words)

	[No title]
		Prior work with the D0 experiment Kansas work on the D0 experiment during this grant period included analysis of the Run I and Run II data sets, efforts with the Run IIA and Run IIB silicon microstrip detectors, software development for the central preshower detector, and development of the central fiber tracker (CFT) trigger.
		An internal D0 document [17] was written on the technique, which unfortunately had too high of a fake rate to be useful for the intended top physics applications.
		An internal D0 document [15] was written on the performance of the reconstruction algorithm on Monte Carlo data and there is an ongoing effort to try to understand the detector performance in the real data.
	www.lns.cornell.edu /~dzb/tem/NSF2003ProjectDescription.doc (6124 words)

	D0 Calorimeter - Test Waveform System Project
		The DØ Experiment consists of a worldwide collaboration of scientists conducting research on the fundamental nature of matter.
		The experiment is located at the Fermi National Accelerator Laboratory (Fermilab) in Batavia, Illinois,USA.
		The research is focused on precise studies of interactions of protons and antiprotons at the highest available energies.
	www-ese.fnal.gov /D0Cal_TWG (366 words)

	KTH in your Pocket: Studies of particle collisions in the D0 experiment at Fermilab
		KTH in your Pocket: Studies of particle collisions in the D0 experiment at Fermilab
		The particle physics group at KTH is a member of a Swedish consortium participating since 2000 in the D0 experiment at the Tevatron collider at Fermilab, located outside Chicago, USA.
		D0 is one of two experiments in which the top quark was discovered in 1995.
	www.kth.se /forskning/pocket/project.asp?id=18945 (147 words)

	THE D0 EXPERIMENT AT FERMILAB (Site not responding. Last check: 2007-10-08)
		A year later, and using the same data as before, the D0 scientists have re-optimized their analysis by expanding their search to additional top-decay modes and by better understanding possible background phenomena.
		The D0 co-spokesmen, Paul Grannis and Hugh Montgomery, caution that this analysis does not yet demonstrate the existence of the top quark.
		Using data from run Ia (Aug. '92--Jun. '93) and a preliminary analysis of partial data from run Ib (1994-95), the D0 inventory now consists of 18 candidate events with an expected background of 8.2, still short of what they feel is needed for a significant demonstration of a top signal.
	newton.ex.ac.uk /aip/glimpse.txt/physnews.213.1.html (250 words)

	CERN Courier - Quaero makes particle detect - IOP Publishing - article
		Analysing the results of an experiment thus has to be carried out by physicists who "know" the detector.
		In the new development - called Quaero from the Latin for "I search" - the interpretation of certain datasets collected by the Fermilab D0 experiment from 1992 to 1996 has already been done and is openly available to other physicists to use as a testbed for models and theories.
		The data are classified according to the type of particles produced and include several of the datasets that led to the discovery of the top quark at Fermilab in 1995.
	www.cerncourier.com /main/article/41/9/5 (581 words)

	KOPIO Experiment Who's Who
		He has extensive experience in the development of advanced detector technologies and received a patent in 2000 for his invention of a new type of gamma ray imaging device.
		He co-initiated the D0 experiment that found the top quark at Fermilab; conceived and led the EMPACT proposal and then headed the GEM physics group at the ill-fated SSC; and was Deputy Project Director for the PHENIX experiment at the new RHIC facility at BNL.
		He is co-spokesman of the KOPIO experiment and principal investigator for a National Science Foundation grant to perform the RandD.
	www.bnl.gov /rsvp/KOPIO_who.htm (479 words)

	D0 (FNAL) Farm Production System (Site not responding. Last check: 2007-10-08)
		Since a typical D0 detector event is around 500 Kb and takes 20 sec to reconstruct on a 35 MIPs processor, the instruction/(byte of IO) ratio is not typical for a farm reconstruction system (very low) and is close to 500 instructions per byte.
		This system allowed D0 experiment to successfully reconstruct around 13 million events from the first collider Run.
		Experience of running such a system for a big collider experiment is discussed including issues related to personnel training and interaction with collaborating physicists.
	www.lbl.gov /LBL-Publications/Proceedings/CHEP94/Hardware-Architectures/Ab10ses2.html (312 words)

	BNL Physicists Named APS Fellows
		The D0 experiment at the U.S. Department of Energy’s Fermilab in Chicago was successful, in 1995, in finding the top quark, an elementary particle whose existence helps to prove the Standard Model.
		PHENIX is a detector at Brookhaven’s newly operating Relativistic Heavy Ion Collider (RHIC), which may help scientists discover and study the quark-gluon plasma, a state of matter predicted to have existed in the earliest moments of the universe.
		Serban Protopopescu was cited “For his individual contributions and leadership in the discovery of the top quark at the D0 Experiment and for software simulation and algorithm development.” Protopopescu was one of the original proponents of Fermilab’s D0 particle detector and was a leader in the development of software for the detector.
	www.bnl.gov /bnlweb/pubaf/pr/2001/bnlpr042601.htm (651 words)

	Meeting of The Divison of Particles and Fields of The American Physical Society
		The D0 experiment faces many challenges in terms of enabling access to large datasets for physicists on 4 continents.
		This structure, which is similar to the tiered structure foreseen for the LHC was used in Fall 2003 to reprocess all D0 data with a much improved version of the reconstruction software.
		This makes D0 the first running experiment that has implemented and operated all important computing tasks of a high energy physics experiment on systems distributed worldwide.
	physics.ucr.edu /~billdbrk/Abstract.html?id=286 (145 words)

	USB Physics: High Energy Physics - Experimental
		In addition, we have begun a collaboration with the CMS experiment at the Large Hadron Collider at CERN and are developing a program of high energy physics at the Relativistic Heavy Ion Collider (RHIC) under construction at nearby Brookhaven National Laboratory (BNL).
		The Compact Muon Solenoid experiment at the CERN LHC is a general purpose detector which will continue the study of high mass, large transverse momentum physics now underway at D0.
		We are part of an approved experiment to measure total pp cross sections and elastic scattering, and are developing proposals to use RHIC to study the properties of hadrons with b-quarks, especially to study CP violation and rare decays.
	www.physics.sunysb.edu /physics/research_groups/p005_hep.htm (875 words)

	The Data Organization, Management and Servingin D0 Collider Experiment (Site not responding. Last check: 2007-10-08)
		The D0 Experiment has collected some 14 Million events in Collider Run Ia. The total data sample comprises 15 Tbytes of data organized in 660,000 data files.
		D0 File Server, cluster of VAX workstations with 300 Gbytes of disks, 30 Exabytes tape drives, and two Exabytes tape libraries, is used to access the data from remote analysis clusters using FATMEN.
		Implementation of the Data Organization and Management System will be presented alongside with the practical experience of 1.5 years of operations and plans for the future evolution.
	www.lbl.gov /LBL-Publications/Proceedings/CHEP94/Data-Handling-and-Storage/Genser.html (134 words)

	D0 experiment (Site not responding. Last check: 2007-10-08)
		The experiment D0 at FERMILAB, where the structure of matter is investigated in the high-energy proton-antiproton collisions, participated on the discovery of the top quark in 1995.
		The participation in this experiment is very important not only because of the direct access to unique data, but also as an invaluable preparation of young physicists for future LHC experiments, where the detector and the methods of data processing will be quite similar.
		At present, a communication and computing system for processing and physical analysis of the D0 data is being built in JLSP and our technicians collaborate on the upgrade of the D0 detector (muon detector, vertex silicon detector).
	www-hep.fzu.cz /~rames/centrum/eng/d0_e.html (205 words)

	Bonner Lab AIX Home Page
		The D0 experiment is located in the Tevatron at Fermilab, currently the worlds highest energy accelerator.
		The D0 experiment was one of the two experiments that simultaneously discovered the Top quark.
		A theory that links gravity with the other forces of nature invariably leads to new interactions and particles that we can search for in particle physics experiments such as D0 and CMS which is why I am working on those experiments.
	www.bonner.rice.edu /padley (420 words)

	Experiment D0 (Site not responding. Last check: 2007-10-08)
		Experiment D0 Experiment D0 Experiment D0 investigates antiproton-proton interactions using the TEVATRON collider in FERMILAB.
		As far as the physics analysis of available D0 data is concerned, we have been involved in studies of top-quark production in multi-jet final states, QCD jets and diffractive phenomena.
		Another important activity will be running and maintaining parts of the D0 detector we are responsible for.
	www-hep.fzu.cz /~rames/zamer/D0.html (220 words)

	Fall Edition of Phyast Flyer
		The D0 experiment observes the collisions of protons and anti-protons at
		Such reflection was crucial this year in the wake of a major upgrade to the D0 detector and to the Tevatron collider.
		The D0 experiment is continuing to publish a large number of results on the data taking during the last run.
	www.nhn.ou.edu /newsletter/v11/v11n1.html (2909 words)

	D0 CTT Mixer System Project
		The D0 central track trigger (CTT) uses the information from the central fiber tracker (CFT), central preshower (CPS) and forward preshower (FPS) detectors.
		John's Engineering notes provide information on the AFE board and on the D0 CTT system.
		Gerry meeting notes provided a weekly update on D0 CTT progress until September 2002.
	www-ese.fnal.gov /D0_CTT_MIXER (772 words)

	Constructing a D0 NT Build System
		If you are just getting started as a developer of D0 Experiment software packages which must run under WNT, then you should read this document in order to set up your WNT PC with all the proper software.
		Coming out to D0 for the first time, and even though I have had a fair experience with another nearby large high energy physics experiment, unix, and WNT, I find that a lot of the D0 web pages still assume familiarity with an enormous amount of context.
		I'm just trying to give you enough background so that when you have to change something due to a difference in your hardware or whatever and the process breaks, you'll be able to figure things out and push on.
	home.fnal.gov /~ritchie/D0tasks/D0NTBuildSystem.html (2377 words)

	Job Opening, from the ZEUS List (Site not responding. Last check: 2007-10-08)
		The D0 detector is presently being upgraded for operation in the higher luminosity environment of Run II, starting in spring 2001.
		The successful candidate is expected to participate fully in the preparation and operation of the D0 experiment and in the subsequent analysis of the data.
		He or she should develop methods to ensure proper operation of aspects of the experiment and its software, and carrying out phsyics analyses.
	www-zeus.desy.de /~harm/jobs/991208.html (303 words)

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