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  • richardmitnick 1:44 pm on July 22, 2014 Permalink | Reply
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    From Fermilab: “Director’s Corner – Mu2e moves forward” 

    Fermilab is an enduring source of strength for the US contribution to scientific research world wide.

    Tuesday, July 22, 2014
    Fermilab Director
    Nigel Lockyer

    Today’s column shines a spotlight on the next major experiment proposed to be built at Fermilab: Mu2e. The recent P5 report placed Mu2e first in line for construction among major projects, to be followed immediately by the high-luminosity LHC and then by LBNF.

    Mu2e solenoid
    Mu2e solenoid


    The Mu2e project took a big step forward two weeks ago when DOE approved the CD-3a step in the construction process. Until now, the team had been focused on the development of a detailed design for the experiment, including modifications to the Fermilab accelerator facility and a new hall to house the detector. CD-3a approval means that the team can purchase 45 miles of custom-made superconducting cables for the experiment’s solenoid magnets.

    Mu2e stands for muon-to-electron conversion, which tells you exactly what the 155 scientists working on the experiment will use it to search for. The collaboration has spent five years designing a sophisticated apparatus that will be used to search for the spontaneous conversion of muons into electrons in the vicinity of an atomic nucleus. While there are many predictions for how this conversion could happen, none are included in the Standard Model of particle physics. So if the conversion is detected, it’s a clear signal for new physics.

    The Standard Model of elementary particles, with the three generations of matter, gauge bosons in the fourth column, and the Higgs boson in the fifth.

    The experiment’s complex magnet system uses four different types of superconductors that required a year of R&D to develop, including an exhaustive series of tests both at vendors and at the lab. It will take two separate vendors over a year to fabricate all of the conductor required, so the DOE’s approval of this long-lead procurement will allow the experiment to accelerate its schedule to be ready to take physics data in 2020.

    Mu2e is proposed to join the Muon g-2 project on Fermilab’s new Muon Campus, making excellent use of the muon beams that our accelerator complex will provide starting later this decade.

    muon g 2
    Muon g-2

    Congratulations to Ron Ray for leading the project team through a successful CD-3a review and to the Technical Division for carrying out the conductor R&D under Mike Lamm’s leadership, with Vito Lombardo heading up the quality assurance work. And thanks very much to the whole collaboration for their work to define the science requirements that drive the experiment, which P5 has recognized as of critical importance for our field.

    See the full article here.

    Fermilab Campus

    Fermi National Accelerator Laboratory (Fermilab), located just outside Batavia, Illinois, near Chicago, is a US Department of Energy national laboratory specializing in high-energy particle physics.

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  • richardmitnick 3:16 pm on December 16, 2013 Permalink | Reply
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    From Symmetry: “Mu2e attracts magnet experts” 

    December 16, 2013
    Andre Salles

    By tapping into specialized knowledge around the world, the Mu2e collaboration will undertake a first-of-its-kind experiment.

    Read the full article to learn about this ingenious device.

    Fermilab’s http://mu2e.fnal.gov/experiment is unlike anything ever attempted. So when the collaboration needed a first-of-its-kind magnet prototype built, they turned to an institution known for its magnet expertise: the Genoa section of the Italian Institute for Nuclear Physics, or INFN, located in the University of Genoa in Italy.

    Earlier this year, INFN-Genoa became the sixth Italian institution to join the Mu2e collaboration, which now sports more than 150 members from 28 labs and universities in the United States, Italy and Russia. The team of magnet experts there has decades of experience working on high-energy physics experiments—they helped design and build magnets for BaBar at SLAC and, more recently, the CMS detector at CERN.

    Now they’re putting that knowledge toward building prototypes of the years-in-development magnets that will be used for for Mu2e, an experiment intended to study whether charged particles called leptons can change from one type to another. According to Doug Glenzinzki, the deputy project manager for Mu2e, the experiment’s goal is to narrow down the possibilities for completing physicists’ picture of the universe, by amassing evidence for one theory over others.

    “We know the Standard Model is incomplete,” Glenzinski says. “The number one goal of particle physics is to elucidate what a more complete model looks like. There are a lot of theories, and we are looking for data that tells us which is right.”

    Standard Model of Particle Physics

    It turns out, Glenzinski says, “charged lepton flavor violation”—the phenomenon Mu2e is being built to study—is a powerful way of discriminating between possible models. Seeing this violation would also open up new questions about a theory of nature that has stood for 80 years. In short, this experiment could point the way toward the future of particle physics.

    Collaborating labs and institutions:
    Member universities:
    Boston University
    University of California, Berkeley
    University of California, Irvine
    California Institute of Technology
    City University of New York
    Duke University
    University of Houston
    Lewis University
    University of Illinois, Urbana-Champaign
    University of Massachusetts, Amherst
    Northwestern University
    Northern Illinois University
    Rice University
    Universita di Udine, Udine, Italy
    University of Virginia
    University of Washington

    Member laboratories:
    Brookhaven National Laboratory
    Instituto Nazionale di Fisica Nucleare Pisa, Universita di Pisa, Pisa, Italy
    Los Alamos National Laboratory
    Instituto Nazionale di Fisica Nucleare, Lecce
    Institute for Nuclear Research, Moscow, Russia
    Fermi National Accelerator Laboratory
    Joint Institute for Nuclear Research, Dubna
    Lawrence Berkeley National Laboratory
    Laboratori Nazionali di Frascati, Italy
    Pacific Northwest National Laboratory

    See the full article here.

    Symmetry is a joint Fermilab/SLAC publication.

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  • richardmitnick 12:34 pm on December 10, 2013 Permalink | Reply
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    From Fermilab: “Mu2e superconducting cable prototype successful” 

    Fermilab is an enduring source of strength for the US contribution to scientific research world wide.


    Tuesday, Dec. 10, 2013
    Leah Hesla

    Last month, members of the Technical Division conducted final tests on the first batch of prototype superconducting cable for the proposed Mu2e experiment. The cable met every prescribed benchmark, carrying over 6,800 amps of electrical current — well above its design current — at 4.2 Kelvin in a magnetic field of 5 Tesla.

    This aluminum-clad niobium-titanium superconductor is a critical component of one of Mu2e’s three magnets, the transport solenoid. As the name implies, the transport solenoid will help transport a beam of muons from its production source to the detector, where scientists will study the particle interactions.

    “This prototype conductor is an important part of our transport solenoid magnet program,” said Giorgio Ambrosio, who is in charge of the transport solenoid design and development. “We know that no superconducting magnet is better than its conductor.”

    Having met this milestone ahead of schedule, members of the Superconducting Materials and Magnet Systems departments will march ahead with the other three superconducting cable prototypes for Mu2e: one for the production solenoid and two for the detector solenoid. They plan to complete the cable prototyping stage in a few months’ time.

    See the full article here.

    Fermilab Campus

    Fermi National Accelerator Laboratory (Fermilab), located just outside Batavia, Illinois, near Chicago, is a US Department of Energy national laboratory specializing in high-energy particle physics.

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  • richardmitnick 6:52 am on January 11, 2013 Permalink | Reply
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    From Symmetry: “Midwest muon experiments carry on East Coast legacy” 

    As researchers across the United States—and around the world—plan two new supersymmetry-hunting experiments to be located at Fermilab, symmetry writer Joseph Piergrossi sat down with collaborators from Boston University to learn more about the projects’ goals and history.

    Joseph Piergrossi, General Science Writer, Journalist and Educator

    January 10, 2013
    Joseph Piergrossi

    This spring, scientists at Fermi National Accelerator Laboratory [Fermilab] will break ground on the buildings for a Muon Campus. The two initial experiments proposed for the campus draw on three decades of technological advances to turn muons into supersensitive probes for physics beyond the Standard Model

    Standard Model
    Standard Model (w/Higgs)

    “With the Muon g-2 experiment, scientists aim to discover signs of subatomic particles and forces that have eluded detection by other experiments. It will be more sensitive to virtual or hidden particles and forces than any previous experiment of its kind. The Mu2e experiment will test a fundamental symmetry of the quantum world.

    Muon g-2 (pronounced g minus two), the first experiment to be installed in the new Muon Campus at Fermilab, has its roots in a muon experiment of the same name that ran from 1997 to 2001 at Brookhaven National Laboratory. ‘The muon is very sensitive to the hidden presence of new physics,’ says Lee Roberts, professor of physics at Boston University and co-spokesperson for the Muon g-2 experiment.

    The Brookhaven Muon g-2 experiment had its inception in 1982, when Yale physicist Vernon Hughes suggested an experiment to measure the magnetic dipole moment of the muon 20 times better than previous experiments run at CERN in the 1970s. He and Roberts were the co-spokespeople for the Brookhaven project and headed the design of the experiment, which eventually involved scientists from 14 institutions in five countries.

    Boston University has had a major stake in the Muon g-2 experiments at Brookhaven and now at Fermilab. In the early 1990s, the university provided the facilities to construct many important components of the muon ring. It was one of a half dozen institutions that ‘played a crucial role’ in the experiment, says Brookhaven’s Bill Morse, former resident spokesperson for the Muon g-2 project.

    The Muon g-2 Experiment at BNL

    The new campus at Fermilab

    See the full article here.

    Symmetry is a joint Fermilab/SLAC publication.

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  • richardmitnick 6:15 pm on September 19, 2012 Permalink | Reply
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    From Fermilab: “Second muon experiment receives Mission Need approval from DOE” 

    Fermilab is an enduring source of strength for the US contribution to scientific research world wide.

    Wednesday, Sept. 19, 2012
    Kurt Riesselmann

    Fermilab’s plans for creating a Muon Campus with top-notch Intensity Frontier experiments have received a big boost. The Department of Energy has granted Mission Need approval to the Muon g-2 project, one of two experiments proposed for the new Muon Campus. The other proposed experiment, Mu2e, is a step ahead and already received the next level of DOE approval, known as Critical Decision 1.

    Fermilab is reconfiguring the Debuncher ring, part of the former Antiproton Source, to create high-intensity muon beams for the Muon g-2 experiment. Earlier this year, a team of scientists successfully circulated the first muons in the Debuncher. Photo: Reidar Hahn

    This rendering shows the location of the proposed Muon Campus at Fermilab. The arrow points to the proposed site of the planned Muon g-2 experiment. Click to enlarge. Image: Muon Department/FESS

    ‘We now are officially on DOE’s roadmap,” said Lee Roberts, professor at Boston University and co-spokesperson for the roughly 100 scientists collaborating on the Muon g-2 (pronounced gee minus two) experiment. “This should make it easier to increase the size of our collaboration and foster international participation. Potential collaborators supported by the National Science Foundation or foreign funding agencies will be happy to see that we now have DOE’s official Mission Need approval.'”

    See the full article here.

    Fermi National Accelerator Laboratory (Fermilab), located just outside Batavia, Illinois, near Chicago, is a US Department of Energy national laboratory specializing in high-energy particle physics.

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  • richardmitnick 11:14 am on November 16, 2011 Permalink | Reply
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    From Fermilab Today: “CDF and DZero buildings to house new projects “ 

    Fermilab continues to be a great source of strength in the U.S. Basic Research Community.

    “On Sept. 30, the CDF and DZero experiments at Fermilab recorded their final particle collisions. Now technicians and engineers are busy preparing the two buildings that supported the collider detectors to accommodate future uses, while preserving the two particle detectors and their control rooms for educational tours that will be offered starting in the fall of 2012.

    The 36,000-square-foot CDF assembly building, including its 50-ton crane, will become part of the Illinois Accelerator Research Center. Groundbreaking for the main IARC building, which will rise right next to the western side of the CDF building and connect with it on several levels, will take place on Dec. 16. While the IARC is under construction, the Particle Physics Division will use the east side of the CDF building for detector development and construction, including work on the Mu2e experiment. The CDF collaboration will continue to operate computers on the third floor for the analysis of CDF data.

    Artist’s rendering of IARC

    A portion of the DZero building will serve as an assembly area for the 170-ton detector of a new Booster neutrino experiment called MicroBooNE, while the DZero collaboration continues to use the complex as its home base.

    ‘Space in the high-bay area of the DZero assembly building will be ready for use by the MicroBooNE collaboration by the middle of January 2012,’ said George Ginther, a manager of the DZero decommissioning plans. The assembly of the MicroBooNE detector and its liquid-argon system will take about a year. When complete, the equipment will be moved into a new building in the Booster neutrino beam line.

    At CDF, the clearing out of the building is in progress.

    ‘We have removed about 30 pallets of material so far,’ said CDF decommissioning manager Jonathan Lewis. ‘Some things will be reused by other experiments, other things will go into storage at other locations on site, or are being recycled or thrown out. We need to have the west end of the building clear and ready for when the IARC construction gets into full swing in 2012.’

    See the full article here.

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