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PI’s: Tom Browder, Kurtis Nishimura, Sven Vahsen , Gary Varner

PI’s: Tom Browder, Kurtis Nishimura, Sven Vahsen , Gary Varner. Belle II @ The University of Hawai’i at Manoa. US Belle II Science Readiness Briefing. UH Group Introduction. UH’s past and future interests

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PI’s: Tom Browder, Kurtis Nishimura, Sven Vahsen , Gary Varner

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  1. PI’s: Tom Browder, Kurtis Nishimura, Sven Vahsen, Gary Varner Belle II @ The University of Hawai’i at Manoa US Belle II Science Readiness Briefing

  2. UH Group Introduction • UH’s past and future interests • B Physics (bsl+l-, inclusive B or Bsη(‘) decays, BD τυ), Charm Physics, Dark Matter/Dark Sector, Tests of Quantum Mechanics (future) • Instrumentation Frontier: Development of innovative TPCs with ATLAS pixel readout (Vahsen) applied to neutrons; Development and implementation of readout ASICS (Varner); Development of readout systems and firmware (Nishimura) • Background Commissioning (Vahsen, Browder) • Management of Belle and Belle II (Browder, Vahsen, Varner) • Browder and Varner were founding members of Belle, Vahsen was an early Princeton Phd graduate student on Belle • All Belle II work currently funded by DOE as part of the UHHEP (University of Hawai’i High Energy Physics) umbrella grant. Applying for a 4-year renewal this month. US Belle II Science Readiness Briefing – UHawaii

  3. UH Faculty Summary I • Thomas E. Browder, 100% Belle II • Belle II spokesperson (2013-2019); Convenor of OTF (Operations Task Force); P4P3TF (Preparation For Phase 3 Task Force); active BCG and TOP detector group member; on-site at KEK for Phase 1, Phase 2 and the first Phase 3 run in 2019; spent every summer semester at KEK since 1998. • Ramping up Belle II physics analysis in 2019-2023 • 1.5 postdocs (share with Varner, supervises on-site work at KEK, physics) • 1 graduate student Shawn Dubey (Bsη’ Xssbar) • Gary S. Varner, 50% Belle II, 50% Other Enterprises • 50% Belle II TOP group leader, Chair DAQ upgrade committee • 50% Detector R&D, DUNE, particle astrophysics; Chair DUNE Cold Electronics Reliability Committee • 2 TOP postdocs [1.5 postdocs (share with Browder)], 1 KLM postdoc • 1 graduate student Chris Ketter(bsl+l-, inclusive), KLM detector hardware and expert operations • 1 Operations postdoc (DAQ operations/upgrade) being recruited

  4. UH Faculty Summary II • Kurtis Nishimura, 50% Belle II, 50% Other • Belle II Activities: TOP electronics & firmware development, supervising KLM firmware development, member of Belle II DAQ Upgrade Committee. • Other Activities: DUNE Cold Electronics, Neutron Imaging, WATCHMAN • 2 Postdocs: V. Shebalin, S. Kohani. • No Belle II graduate students yet. • Sven Vahsen, 80% Belle II, 20% Other • Leader of Belle II beam background group since 2013 • Member of Speakers Committee (2016-2018), BCG and MDI groups. • Led BEAST Phase 1 detector design, execution, analysis, publication, and later background efforts. DM and Dark Sector Physics. • Other activities: Directional recoil detection; resulted in innovative TPCs used in Belle II. Relevant to future neutrino and dark matter detectors. • 2 postdocs: Lewis ( research prof. at U. Bonn)[programmatic], Liptak (ops) • 4 grad students: Seong, Hedges, Thorpe, Schueler. First three completed PhDs summer 2017 and Dec 2018  postdocs in neutrino, flavor, and DM physics

  5. UH Postdoc Summary I • Oskar Hartbrich: 100% on Belle II • Started on Belle II in 2016 • Working on TOP operations as Expert • Support for TOP debug and Firmware development • Characterization of TOP IRSX ASIC • Belle II DAQ Expert junior member • Key editor of omnibus TOP readout electronics paper [under review with NIM A] • Martin Bessner: 100% on Belle II • Started on Belle II in 2017 • Working on TOP expert operations, Firmware testing, electronics spares testing • Richard Peschke: 100% on Belle II • Started on Belle II in 2018 • KLM readout tests and operations support • Organization of KLM online code and configuration • KLM Firmware Development Support

  6. UH Postdoc Summary II • VasilyShebalin: 50% Belle II Ops (starting soon), 50% Nishimura Startup • Firmware expert from BINP on ECL moved to Hawaii in 2018. • Key KLM scintillator firmware developer. • Supporting TOP firmware development. • Belle analysis referee. • Shahab Kohani: 100% Nishimura Startup • Started on Belle II in 2018. • Exploring fitting algorithms to improve TOP online feature extraction. • Expected to ramp up onto Belle II physics analysis in 2019. Firmware expert from BINP US Belle II Science Readiness Briefing – UH

  7. UH Postdoc Summary III • Peter Lewis: 100% Belle IInew job on Belle II • Group member 2013 – summer 2018 • Led BEAST Phase 1 installation, DAQ, analysis • 1st author of SuperKEKB Phase 1 commissioning paper • 1st author on NIMA paper demonstrating 3d fiducialization in gas TPC • Research Prof. at Bonn University, Germany • Zachary Liptak: 100% on Belle II ops • Started on Belle II in Sep 2017, lives at KEK • BEAST Phase 2 DAQ ops and offline data production • BEAST Phase 3 DAQ + TPC operator • Member of outreach team - Belle II Instagram in English and Japanese. US Belle II Science Readiness Briefing – UH

  8. Graduate Student Summary II • Michael Hedges: 100% on Belle II postdoc • Started on Belle II in 2012 • Built and installed BEAST TPC gas system • BEAST Phase 1 Safety Coordinator, resided at KEK • Ph.D. Dec. 2018 on Belle II neutrons and directional neutron detection (published in BEAST Phase 1 paper) • Now postdoc on Mu2e@FNAL with Purdue • Tom Thorpe: 20% on Belle IIpostdoc • Not Belle II member, focused on instrumentation (started in 2011) • Ph.D. Dec 2018 on gas avalanche gain studies + set a new Dark Matter limit (to be published) • Won competitive postdoc fellowship@GranSasso Science Institute. Will work on DarkSide. US Belle II Science Readiness Briefing – UH

  9. Graduate Student Summary III • IlsooSeong: 100% on Belle II postdoc • Started on Belle II/Belle in 2011 • BEAST TPC development • Belle Search for low-mass DM and light Higgs Boson • Ph.D. 2017. First author of PRL accepted 1/4/2019 • Now postdoc at UC Irvine on neutrinos • Jeffrey Schueler: 100% on Belle II • Started on Belle II in 2016 • BEAST Phase 2 TPC operator + BCG member, stationed at KEK 2017-2018 • To install Phase 3 TPC system • Measured Phase 2 neutron BG (publication forthcoming) • Planning Belle analysis on Quantum Decoherence US Belle II Science Readiness Briefing – UH

  10. Graduate Student Summary IV • Chris Ketter: 100% on Belle II • Started on Belle II in 2015 • Design and fabrication of crucial heat-sink components of TOP custom heatsinks • Design and fabrication of KLM readout board and cable support mechanics, consisting of hundreds of machined frames and integral card supports • Design and fabrication of custom shipping containers for production readout circuitboards (all arrived Japan in very good shape). • KLM SiPM tuning, feature extraction firmware • Analysis topic will be bsl+l-, semi-inclusive US Belle II Science Readiness Briefing – U Hawaii

  11. Other People (Firmware engineering, IDL) http://www.naluscientific.com/ • Engineer/Subcontracts: • Subcontracts to Nalu Scientific for firmware engineering (Luca Macchiarulo, IsarMostafenzhad) Following the Nishimura faculty hire, the Nalu work for Belle II is ramping down as Nalu’sSBIR’s and activities on other experiments for US national labs ramps up. The University of Hawaii has an IDL (Instrument Development Lab), which is an electronics design and assembly facility. One university supported engineer, Matt Andrew , Nishimura and Varner run the IDL. US Belle II Science Readiness Briefing – UH

  12. Rampdown of Nalu Engineering on Belle II PNNL sub-contract issued 7/25/2017 50, 364 DOE programmatic 2017: travel to KEK for Nalu 8, 067 DOE programmatic (BESIII redirect, May 2018) for Nalu: 87, 307 No BNL subcontracts for Nalu on Belle II Year 1 of UH renewal proposal: completion of Nalu work 50,000 Years 2, 3, 4 no request for Nalu work. Firmware work taken over by Prof. Nishimura, postdocs and students. US Belle II Science Readiness Briefing – Institution X

  13. Personnel location by FY * Sabbatical location ** Summer location Red-means US Belle II ops postdocs US Belle II Science Readiness Briefing – UH

  14. Personnel location by FY II Ramp-down of external firmware engineering should allow for more graduate students and more physics output. US Belle II Science Readiness Briefing – UH

  15. UH Personnel % Belle II Effort by FY (Faculty/Postdocs)

  16. Personnel % Belle II Effort by FY US Belle II Science Readiness Briefing – UH

  17. Conclusions for Belle II@University of Hawai’i • Our technical interests are TOP readout, KLM readout, background commissioning and neutron detection. Readout includes ASICs, firmware and systems. Browder, Varner, Vahsen do Belle II management. • Our physics interests are inclusive rare decays (bsl+l-), exclusive BD τυ, searches for dark sector particles and tests of quantum mechanics. • We plan to have 5students doing Belle II theses (as requirements for firmware engineering ramp down and Browder is freed up from Belle II administrative duties). • Our programmatically funded postdocs and graduate students are based at Hawaii but make frequent long trips to KEK. US Belle II operations postdocs are usually based at KEK.Postdocs will begin to transfer to calibration, software and physics as readout is stabilized. • Nishimura who has led the US Belle II firmware effort and brought TOP into operation will apply as a co-PI in the 4-year renewal proposal. • In 2017-2018 we achieved stable readout of the TOP, made major contributions to the KLM, and led the BEAST effort with first collisions. US Belle II Science Readiness Briefing – U Hawaii

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