Long-Baseline Neutrino Facility LBNF LBNF/DUNE Project 29 September 2015

LBNF International Particle Physics Community Steps toward LBNF/DUNE E McCluskey | LBNF/DUNE Project2 2013: European Strategy for Particle Physics updated Endorsed high priority of neutrino physics Bottom line: CERN should help the European neutrino community participate in a long-baseline program outside of Europe 2014: P5 Plan A strategic plan for U.S. particle physics maximizing opportunities for breakthrough science Explicit prioritization, hard choices made within realistic budget scenarios Particle physics community unified behind the plan: 2,331 signatures on letter sent to DOE Secretary Moniz

LBNF P5 Mandate: Scope of LBNF/DUNE based on science requirements E McCluskey | LBNF/DUNE Project3 “For a long-baseline oscillation experiment, based on the science drivers and what is practically achievable in a major step forward, we set as the goal a mean sensitivity to CP violation of better than 3σ over more than 75% of the range of possible values of the unknown CP-violating phase δCP.” “With a wideband neutrino beam produced by a proton beam with power of 1.2 MW, this … implies a far detector with fiducial mass of more than 40 kilotons of liquid argon and a suitable near detector.” This is the scope of the LBNF/DUNE project, detailed in P5 as “The minimum requirements to proceed are the identified capability to reach an exposure of at least 120 kt*MW*yr by the 2035 timeframe, the far detector situated underground with cavern space for expansion to at least 40 kt LAr fiducial volume, and 1.2 MW beam power upgradable to multi-megawatt power.”

LBNF Facility and Experiment as separate major subprojects E McCluskey | LBNF/DUNE Project4 For the DOE portion of the LBNF/DUNE Project, this one project with a single Federal Project Director. LBNF and DUNE share common Project Office Resources. Internationally, the facility, LBNF, is treated as a separate project from the experiment, “DUNE”  This facilitates CERN as facility partner  Fermilab oversees LBNF Project  Facility is separated in to those at Near Site (at Fermilab) and those at Far Site (Sanford Underground Research Facility or SURF) DUNE Collaboration  comprises 776 members from 26 countries and 144 institutions (~ half international)  oversees the DUNE Project  Major partners already engaged include CERN, Switzerland, UK, India, Italy, South Dakota

LBNF Organization Chart at a high level E McCluskey | LBNF/DUNE Project5 IAC: International Advisory Council RRB: Resources Review Boards LBNC: Long-Baseline Neutrino Committee EFIG: Experiment-Facility Interface Group

LBNF LBNF Near Site Facilities Scope E McCluskey | LBNF/DUNE Project6 Primary proton GeV extracted from Main Injector Initial 1.2 MW beam power, upgradable to 2.4 MW Embankment allows target complex to be at grade and neutrino beam to be aimed to Lead, SD Decay region followed by absorber 4 surface support buildings Near Detector facility

LBNF LZ (future) LUX-ZEPLIN Second generation dark matter E McCluskey | LBNF/DUNE Project7 Sanford Underground Research Facility 4850L Facilities

LBNF Lease for LBNF at SURF E McCluskey | LBNF/DUNE Project8 SURF is owned by the South Dakota Science & Technology Authority (SDSTA) for the State of South Dakota. DOE has determined that a surface land lease and underground space lease is required to allow construction of a DOE capital asset at a non- DOE site, in accordance with the LBNF/DUNE Real Estate Plan. DOE intends to enter into a $1/yr lease with SDSTA for use of only the space at SURF required for LBNF. This would put this space under the control of DOE. (no other spaces are presently leased at SURF) Non-LBNF space at SURF will remain under SDSTA control. The lease will go into effect prior to the start of any construction at the site. In addition, an agreement (to be drafted) between Fermilab and SDSTA will outline the manner in which the two entities will work together to execute LBNF and DUNE. The draft lease is under review by the stakeholders.

LBNF Excavation of caverns & drifts in modular manner for 4-10kt fiducial mass detectors Central utility cavern for CF and cryogenic equipment LN2 refrigeration system for cooling & compressing gaseous argon LAr systems for purification & recirculation Four membrane cryostats supported by steel frames ~ 80kt LAr Surface and shaft infrastructure LBNF Far Site Facilities Scope E McCluskey | LBNF/DUNE Project9

LBNF DUNE Detectors Scope E McCluskey | LBNF/DUNE Project10 Far Detector: Liquid Argon Time Projection Chamber (TPC)  Four 10-kton detector modules, modular design to facilitate underground transport and installation Near Detector: Strawtube Tracker with gas targets

LBNF Summary Schedule E McCluskey | LBNF/DUNE Project11 Either this or critical path slide

LBNF LBNF/DUNE Schedule Summary Overview 12 FY27 FY26FY25FY24FY23FY22FY21FY20FY19FY18FY17 FY16FY15 TPC Test, Fill & Commission Det #1-2 Mar-16 CD-3a Approval FY28 CERN Test DOE Activity DOE and Non-DOE Activity Non-DOE Activity Det #1 Commissioned Det #2 Commissioned Cryostat #1 Ready for Detector Installation Start Full Scale Mock-up Oct-15 CD-1 Refresh Approval Jan-19 CD-3b Approval Conventional Facilities Prelim & Final Design Excavation and UGI Cavern 1-4 Waste Rock Handling Cryostat #1-2 Construction Cryostat #3-4 Construction Cryogenics Equipment Install Detector #1-2 FS Conventional Facilities Complete Install Detector #3-4 Install & Comm ND in Hall CF Near Detector Hall Partial Assembly on Surface at FNAL NND Design, Procurement NND Assembly ND Hall Beneficial Occupancy – NS CF Complete Near Detector Complete CF Preliminary & Final Design Install Beamline systems Beamline Complete Apr-27 DOE CD-4 Approval Critical paths at each site shown in red Dec-19 CD-2/3c Approval FY29 Fill & Commission Det #3-4 NND Design, Procure CF Beamline Facilities Initial FSCF Construction NEAR SITE FAR SITE E McCluskey | LBNF/DUNE Project Either this or summary slide

LBNF Cost Methodologies for LBNF/DUNE E McCluskey | LBNF/DUNE Project13 DOE portion of LBNF/DUNE uses standard DOE total project cost (TPC) accounting  DOE TPC is $1,457M Non-DOE accounting for in-kind contributions is modeled after LHC accounting at CERN, called CORE accounting CORE contributions in either monetary units or labor hours include:  Technical components for the facility or experiment and the effort of the staff needed to produce, install, and test them  Major facilities for the experiment  Other products and services relevant for the completion of the facility or experiment  e.g., components, production, outsourced assembly, installation, and commissioning, or what is known in the U.S. as M&S costs and the direct labor involved to produce components

LBNF Summary E McCluskey | LBNF/DUNE Project14 LBNF/DUNE is moving quickly to create the world’s largest neutrino experiment and facility. Early FSCF construction approval will keep the LBNF/DUNE program on track to follow-on cryogenic and detector installation and is the critical path to detector data-taking. LBNF/DUNE is planning to start construction at SURF 2017.