Two projects aim at significantly improving that experimental precision. The muon g2 experiment at fermilab, with the aim to measure the muon anomalous magnetic moment to an unprecedented level of 140 ppb, has started beam and detector commissioning in summer 2017. It might also provide evidence of the existence of entirely new particles. Note that the central value for the muons lifetime is less than the free space value t 2. A new measurement of the anomalous magnetic moment of the muon, a g 22, will be performed at the fermi national accelerator laboratory. Collaborators from all over the world helped design and fabricate components of the detector, which were brought to cern for final assembly. The muon g2 experiment has begun its search for phantom particles with its worldfamous and welltraveled electromagnet.
Workbookmuonanalysis g 2 experiment at brookhaven national laboratory is stringently testing the standard model by measuring the anomalous magnetic moment of the muon to unprecedented precision. To deal with incoming data projected to be around tens of petabytes, a robust data reconstruction and analysis chain based on fermilabs art eventprocessing framework is developed. Scientists use this particle storage, a 50footdiameter magnet, to look for hidden particles and forces. Muon g2 reconstruction and analysis framework for the muon. The muon is produced copiously in earths atmosphere by interactions between cosmic rays and atmospheric air molecules. Note that the central value for the muon s lifetime is less than the free space value t 2. Cosmic ray sun shadow in soudan 2 underground muon flux. Mavenlink transforms your business by uniting project management, collaboration.
A meeting of the collaboration working on muon accelerator concepts will be held at slac dec 37, 2014. Reevaluation of the hadronic contributions to the muon g. The jparc muon g 2 edm collaboration the 10th collaboration meeting at jparc, june 2015. Cms is also a reference to the centerofmass system, an important concept in particle physics. The goal of the mucap experiment is a determination of the rate for muon cap. The e821 result appears to be greater than the standardmodel prediction by more than three standard deviations.
Muon g 2 reconstruction and analysis framework for the muon anomalous precession frequency k s khaw on behalf of the muon g 2 collaboration university of washington, department of physics, box 351560, seattle, wa 98195, usa email. The muon g2 experiment at fermilab, with the aim to measure the muon. Kitamura for the jparc muon g2edm collaboration, riken accel. The cms collaboration, the muon project, technical design report, cernlhcc 97 32 1997. The muon g 2 experiment has begun its search for phantom particles with its worldfamous and welltraveled electromagnet. Explore muon software ltds full range of vsti and audio unit plugins for use with music recording software such as steinberg cubase or apple logic studio. In one workspace, your team can assess tasks and timelines, track time and expenses, and post comments and questions on shared files all in one place. Nikhef, national institute for subatomic physics, amsterdam, the netherlands. Lee roberts bu, vernon hughes deceased yale resident spokesman.
Series technical design report note this is the final version, approved by the lhcc. Project managertechnical coordinator contardo, didier. Muon g2 pronounced gee minus two will use fermilabs powerful accelerators to explore the interactions of shortlived particles known as muons with a strong magnetic field in empty space. The muon g 2 experiment at fermilab, with the aim to measure the muon. Pasha murat fermilab, stefano di falco infn pisa trigger filters. The term nobugs is a shorthand for new opportunities for better user group software. Apr, 2017 it would be the first direct evidence of not only physics beyond the standard model, but of entirely new particles, says dominik stockinger, a theorist at the technical university of dresden, germany, and a member of the muon g. The 10th collaboration meeting at jparc, june 2015. Muons bring new physics within reach scientific american. Muon g 2 first magnetometer images october 30, 2017 update for aem 5 yellow integrated pickup coil signal blue magnetometer want to tune and understand kicker pulse.
The intended benefit of this collaboration is better data acquisition and analysis software which helps user to get the most out of their experiments at such expensive facilities. Final report of the e821 muon anomalous magnetic moment measurement at bnl. Muon g2 reconstruction and analysis framework for the muon anomalous precession frequency k s khaw on behalf of the muon g2 collaboration university of washington, department of physics, box 351560, seattle, wa 98195, usa email. Capture must be realized on a timescale compatible with the muon lifetime at rest, 2. Muon g 2 pronounced gee minus two will use fermilabs powerful accelerators to explore the interactions of shortlived particles known as muons with a strong magnetic field in empty space.
Paper open access muon g2 reconstruction and analysis. Our collaboration has been responsible for detector, electronics, data acquisition and analysis software development there. The cms collaboration brings together members of the particle physics community from across the globe in a quest to advance humanitys knowledge of the very basic laws of our universe. The european muon collaboration emc was formed in 1973 to study the interactions of high energy muons at cern. A new measurement of the anomalous magnetic moment of the muon, a g 2 2, will be performed at the fermi national accelerator laboratory. The figure below is a screen capture from the included software and shows a fit to actual student data. It is a type of lepton particle, similar to the electron but with a heavier mass. The muon g 2 experiment at fermilab, with the aim to measure the muon anomalous magnetic moment to an unprecedented level of 140 ppb, has started beam and detector commissioning in summer 2017. The aim of nobugs is to foster the collaboration between it professionals working for xray, muon and neutron facilities. In addition, the collected data is used for several other calculations. The cms collaboration, detector perfor mance and software, technical design re port, cernlhcc 2006001 2006.
The best online collaboration software for 2020 pcmag. Predicts g 2, as observed in atomic finestructure experiments for the spin1 2 electron magnetic moment whereas an orbital picture g 1 and, it allows for a socalled pauli interaction term to accommodate possible deviations of g from 2 b m m dirac or at first, g. Teachspin, in collaboration with thomas coan and jingbo ye of southern methodist university, has made the first commercial teaching instrument for students to determine some of its physical characteristics. Muon g2 reconstruction and analysis framework for the. Data acquisition for the new muon g2 experiment at fermilab. The muon g2 experiment at fermilab conference osti. Cms has over 4000 particle physicists, engineers, computer scientists, technicians and students from around 200 institutes and universities from more than 40 countries. Muon accelerator program collaboration meeting 2014. Data acquisition for the new muon g2 experiment at. The muon g 2 experiment, e989 at fermilab, will measure the muon anomalous magnetic moment a factoroffour more precisely than was done in e821 at the brookhaven national laboratory ags.
Mavenlink provides powerful software and services that puts collaboration in context with the future of work. Jovan mitrevski on behalf of the atlas collaboration. Final report of the muon e821 anomalous magnetic moment. Muon capture and muon lifetime peter kammela representing the mucap1 and mulan 2 collaboration auniversity of illinois at urbanachampaign, urbana, il 61801, usa we survey a new generation of precision muon lifetime experiments. Jun 01, 2017 the muon g2 experiments first beam truly signals the start of an important new research program at fermilab, one that uses muon particles to look for rare and fascinating anomalies in nature.
Development of a slow muon detection system for a muon acceleration, r. Wesley gohn for the fermilab e989 collaboration department of physics and astronomy, university of kentucky, lexington, ky 40506 usa email. The muon g 2 experiment recently started its second run. The package includes a web interface for easy experiment control and the necessary machinery for acquiring data and writing it to disk. Sep 11, 2019 the annual g 2 physics week, which took place on elba island in italy from 27 may to 1 june, saw almost 100 physicists discuss the latest progress at the muon g. Fermilab accelerator upgrades european project muon g2 experiment. The muon proton scattering experiment collaboration muse. Dec 27, 2019 the collaboration operates and collects data from the compact muon solenoid, one of the generalpurpose particle detectors at cerns large hadron collider. Collaboration list 7 countries, 35 institutions, 203. The experiment is run by an international collaboration of more than 60 physicists from 11 institutes in the united states, germany, the netherlands, russia and.
Mar 02, 2020 one of ten national laboratories overseen and primarily funded by the office of science of the u. Wesley gohn 1 and for the fermilab e989 collaboration 1. Muon reconstruction with the cms tracking system sciencedirect. Muon software ltd develop virtual instrument plugins for use with music recording software such as steinberg cubase or apple logic studio. Workbookmuonanalysis muon segments matched with the extrapolated tracker track and some other tracksegments matching information. Boston university university of california, berkeley university of california, davis university of california, irvine california institute of technology city university of new york duke university university of houston kansas state university lewis university.
We report the first measurement of the solar cosmic ray shadow by detection of deep underground muon flux in observations made during the entire tenyear interval 1989 to 1998. Published 1 december 2015 published under licence by iop publishing ltd journal of physics. The muon g2 experiment has begun its search for phantom. Another proposal is the upgrade of the muon trigger in the barrel end cap transition region using rpcs, which is the project this article is about. The muon package manager is a powerful package manager aimed towards the intermediate poweruser range. Proposal of upgrade of the atlas muon trigger in the barrel. Our plan evolves from the considerable experience we have gained in the present muon 2 experiment at bnl. Department of energy doe, brookhaven national laboratory conducts research in the physical, biomedical, and environmental sciences, as well as in energy technologies and national security. Dec 23, 2019 the best online collaboration software for 2020 the best online collaboration tools boost productivity by helping teams work together more efficiently. Final report of the muon e821 anomalous magnetic moment measurement at bnl g. The setup is controlled by the midas daq software framework. The muon package management suite is a collection of several package management tools based on the qapt package management library for debianbased systems. Preparing atlas reconstruction software for lhcs run 2.
The muon g2 collaboration scientists from three department of energy national laboratories, fermilab, brookhaven and argonne, along with scientists from seven foreign countries and more than a dozen u. The anomalous magnetic moment of the muon 1993 2016. The collaboration took its first dataset in 2018, integrating 40% more statistics than the bnl experiment, and is now coming to the end of a second run that will yield a combined dataset more than three times larger. Demonstration of cooling by the muon ionization cooling. The muon g2 collaboration, fermilab pac 29 june 2017 p. Each analysis has own private software frequency offset. Design of the positron tracking detector for the muon g. Scientists know that even in a vacuum, space is never empty. Collaboration software, also known as collaborative software or groupware, allows for the management, sharing, and processing of files, documents, and other types of data among several users and systems, anytime and anywhere. K s khaw and on behalf of the muon g2 collaboration. A schematic of the data acquisition system for muon g 2 the software for the muon g 2 daq is based on the midas data acquisition software 9 developed at psi and triumf.
Collaboration list 7 countries, 35 institutions, 203 collaborators. We have experience in building counting systems with a high level of timing and gain stability. The muon is a fundamental particle that is part of the standard model of particle physics. Tuggle ph 255001, group 4 3 may 2010 abstract we describe a procedure for detecting and timing muon decays in a scintillation detector, calculating a value for the muons mean lifetime. For run 2, the muon software will run a unified reconstruction chain, with. These experiments were motivated by the interest in determining the quark structure of the nucleon following the discovery of high levels of deep inelastic scattering at slac. The term compact muon solenoid comes from the relatively compact size of the detector, the fact that it detects muons, and the use of solenoids in the detector. Final report of the e821 muon anomalous magnetic moment. Added additional capacitor module in k1 transformer increased charging time each pulse in the train looks more even nominal voltage installed magnetometer. Jan 08, 2004 the muon g 2 experiment at brookhaven national laboratory is stringently testing the standard model by measuring the anomalous magnetic moment of the muon to unprecedented precision. To deal with incoming data projected to be around tens of petabytes, a robust data reconstruction and analysis chain based on fermilabs art event.
65 1085 1497 610 199 1149 253 1602 1097 4 1584 411 724 1170 87 1226 1606 1227 170 949 1212 346 181 1011 680 250 1424 801 18 361 1620 1205 1504 992 728 1539 608 1425 227 100 1301 339 972 25 3