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  • richardmitnick 1:10 pm on December 9, 2014 Permalink | Reply
    Tags: , , Fermilab Mu2e, , ,   

    From FNAL: “Digging begins for Muon g-2 and Mu2e beamlines” 


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

    Tuesday, Dec. 9, 2014
    Rich Blaustein

    This month construction has commenced on beamline tunnel extensions for Fermilab’s two muon experiments, Mu2e and Muon g-2.

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    A team of physicists from all over the world, including postdocal researchers and graduate and undergraduate students, are working together to design, test, and build the Mu2e experiment. The Mu2e Collaboration is comprised of over one hundred physicists and continues to grow.

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    Mu2e will have the ability to indirectly probe energy scales well beyond the terascale being explored at the LHC. At these higher energies the effects of new particles or new forces may become evident and may provide evidence that the four known forces that govern particle interations – the gravitational, electromagnetic, weak and strong forces – unify at some ultra-high energy. (Credit: symmetry magazine/Sandbox Studio)

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    The Mu2e detector is a particle physics detector embedded in a series of superconducting magnets. The magnets are designed to create a low-energy muon beam that can be stopped in a thin aluminum stopping target. The magnets also provide a constant magnetic field in the detector region that allows the momentum of the conversion electrons to be accurately determined. These superconducting magnets are big. The first, to the left, is about 12 feet long at 4.5 Tesla; the middle, S-shaped section about 40 feet along the curve at about 2 Tesla, and the third about 30 ft long and almost six feet across at 1 Tesla. The Earth’s field, for comparison, is 0.0006 Tesla.
    (Credit: symmetry magazine)

    g2
    Muon g-2 (pronounced gee minus two) will use Fermilab’s powerful accelerators to explore the interactions of short-lived particles known as muons with a strong magnetic field in “empty” space. Scientists know that even in a vacuum, space is never empty. Instead, it is filled with an invisible sea of virtual particles that—in accordance with the laws of quantum physics—pop in and out of existence for incredibly short moments of time. Scientists can test the presence and nature of these virtual particles with particle beams traveling in a magnetic field.

    In the area of the current Delivery Ring (the former Antiproton Debuncher), southwest of the Booster, the existing beam tunnel will be extended approximately 200 feet, at which point it will branch in two separate directions. The Muon g-2 tunnel, about 75 feet long, will terminate in the MC-1 Building, which houses the experiment’s muon storage ring. The Mu2e tunnel, around 550 feet long, will head toward a new building to be constructed for the experiment. Construction is expected to take one year. The start of the construction of the Mu2e building is planned for 2015.

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    Fermilab has begun construction on new beamlines for its muon programs, Muon g-2 and Mu2e. Image: Fermilab

    Digging for the tunnels began this month. Part of Kautz Road will become permanently inaccessible, with a detour from South Booster Road and Indian Creek Road serving as the new road.

    Fermilab Accelerator Division physicist Mary Convery, who oversees the Muon Campus program, coordinated the tunnel designs with Tom Lackowski, project manager; Rod Jedziniak, project design coordinator; and Tim Trout, project construction coordinator, all of FESS.

    The primary challenge in constructing the beamlines will be in accommodating fixed features and structures, both man-made and natural.

    “The locations of the g-2 and Mu2e buildings were fairly fixed because there are already utility corridors underground,” Convery said. “There are also wetlands that we are trying not to disturb.”

    Convery said that these physical constraints were important considerations in designing the experiments’ beamlines, since the space available to accomplish the necessary beam manipulations was limited.

    “It is not only the geometry of the beamlines that we have to conform to,” Lackowski said. “We also have to make sure the many services — the cable trays and the water services for cooling — are all coordinated.”

    Because the two muon experiments use the same beamlines at different energies, they cannot be run simultaneously.

    For both experiments, protons will proceed through the Linac, course through the Booster and then travel through the Recycler. A set of beamlines connects the Recycler to the Muon Campus. For the Muon g-2 experiment, the proton beam hits a target, converting the beam to a mixture of pions, protons and muons. The particles circle the Muon Delivery Ring several times, where protons are then removed and the remaining pions decay into muons. When the Muon g-2 experiment is taking data, the muon beam will continue to the experiment in the MC-1 Building.

    In contrast, for the Mu2e experiment, the protons bypass the target station and are transported to the Delivery Ring. The Mu2e protons also circle the Delivery Ring, then continue as an all-proton beam to the target in the Mu2e building area.

    Convery says work is also being done on other technical upgrades, such as installing magnets, along the beamline route.

    She expects the Muon g-2 experiment to begin in 2017, with Mu2e starting later, as scheduled.

    “Fermilab people have worked together for many years on various beamline projects,” Lackowski said. “We have had a very tight relationship with Mary and other colleagues, so we believe the Muon Campus tunnel project will go well.”

    See the full article here.

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    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.

     
  • richardmitnick 2:56 pm on October 28, 2014 Permalink | Reply
    Tags: , Fermilab Mu2e, , , ,   

    From FNAL: “Mu2e moves ahead” 


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

    Tuesday, Oct. 28, 2014
    nl
    Fermilab Director Nigel Lockyer wrote this column

    In continued alignment with goals laid out in the P5 report, we’re making progress on our newest muon experiment, Mu2e. A four-day DOE Critical Decision 2/3b review of the experiment concluded Friday. The review went extremely well and validated the design, technical progress, and the cost and schedule of the project. The reviewers praised the depth and breadth of our staff’s excellent technical work and preparation. Official sign-off for CD-2/3b is expected in the next several months, followed by construction on the Mu2e building in early 2015. Construction on the transport solenoid modules should begin in the spring. The experiment received CD-0 approval in 2009 and CD-1 approval in 2012 and is slated to start up in 2020.

    Named for the muon-to-electron conversion that researchers hope to observe, Mu2e is a crucial stepping stone on our journey beyond the Standard Model. and in the hunt for new physics. It will be 10,000 times more sensitive than the previous attempts to observe that transition.

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    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.

    Experimenters will use a series of superconducting magnets to separate muons from other particles, guiding them to a stopping target. After the muons have been captured by aluminum nuclei, a very small number are expected to transform into only an electron rather than the typical decay into an electron and two neutrinos. It’s a change so rare, theorists liken it to finding a penny with a scratch on Lincoln’s head hidden in a stack of pristine pennies so tall that the stack stretches from the Earth to Mars and back again 130 times.

    The experiment will provide insight into how and why particles within one family change into others. It might also help narrow down theories about how the universe works and provide insight into data coming out of the LHC. Discovery of the muon-to-electron conversion would hint at undiscovered particles or forces and potentially illuminate a grand unification theory — not bad for a 75-foot-long experiment.

    Many months of hard work preceded last week’s review. Thank you to all who were involved in helping to move this important experiment forward.

    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 1:44 pm on July 22, 2014 Permalink | Reply
    Tags: , Fermilab Mu2e, ,   

    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
    nl
    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

    LBNF
    LBNF

    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.

    sm
    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
    Tags: , Fermilab Mu2e, , ,   

    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.

    mu23
    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.”

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    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
    Tags: , Fermilab Mu2e, , , , ,   

    From Fermilab: “Mu2e superconducting cable prototype successful” 


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

    THIS POST IS DEDICATED TO L.H., TRULY A GREAT ASSET OF FNAL

    Tuesday, Dec. 10, 2013
    Leah Hesla
    lh

    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
    Tags: , , Fermilab Mu2e, , , ,   

    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.

    jp
    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.

    m2bnl
    The Muon g-2 Experiment at BNL

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    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
    Tags: , , Fermilab Mu2e,   

    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.

    image
    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

    image2
    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
    Tags: , , , , Fermilab Mu2e   

    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.

    i1
    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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