6th Open Meeting for the Hyper-Kamiokande Project

28 Jan 2015, 08:00 → 31 Jan 2015, 20:00 Asia/Tokyo

Lecture Hall (Kavli IPMU, The University of Tokyo)

Overview

The Hyper-Kamiokande project is being designed to be the next decade's flagship experiment for the study of neutrino oscillations, nucleon decays, and astrophysical neutrinos.

We will hold the 6th International Open Working Group Meeting for Hyper-Kamiokande. The meeting will be open to all interested scientists and community members.



The outline of the meeting is:
        • 28 January (Wed.):  Preemeetings
        • 29 January (Thu.):   Convener meeting, IBR (International Board of Representatives) Meeting, Plenary Sessions
        • 30 January (Fri.): Plenary Sessions
        • 31 January (Sat.):  Plenary Session till noon, followed by the proto-collaboration symposium

The slides for the past open meetings can be found here;

(1st) http://indico.ipmu.jp/conferenceTimeTable.py?confId=7#all.detailed
(2nd) http://indico.ipmu.jp/conferenceTimeTable.py?confId=10#all.detailed
(3rd) http://indico.ipmu.jp/conferenceTimeTable.py?confId=23#all.detailed
(4th) http://indico.ipmu.jp/conferenceTimeTable.py?confId=29#all.detailed
(5th) http://indico.ipmu.jp/conferenceTimeTable.py?confId=34#all.detailed

The goal of this meeting is to further discuss the physics potentials of Hyper-K, the design of the detector, and necessary R&D items including:

• cavern excavation,
• tank liner material and its design,
• photo-sensors and their support structure,
• DAQ electronics and computers,
• calibration systems,
• water purification systems,
• software development,
• neutrino beam-line,
• near detector,
• physics potentials of Hyper-K, and so on.

Participants are encouraged to submit abstracts for talks in which to present their individual interests in topics specifically related to Hyper-K, as well as discuss possible future contributions to the project.

If you would like to contact the relevant people in our group in advance to discuss the Hyper-K project and its development work, please click the contact information menu (on the left side of this page) to send an email [ hkmeeting_contact@km.icrr.u-tokyo.ac.jp ] to us.

We expect that those who are interested in joining the project will come to this meeting. However, the meeting will require prior registration to participate.  Due to capacity constraints at the meeting site we urge all interested parties to register at their earliest possible convenience.

We are looking forward to seeing you in Kashiwa,

Local Organizing Committee Members < hkmeeting_loc@ipmu.jp >:

Mark HARTZ (Kavli IPMU), Kimihiro OKUMURA (ICRR), Yasuhiro NISHIMURA (ICRR), Shoko ICHIKAWA (Kavli IPMU)

Scientific Organizing Committee Members < hkmeeting_contact@km.icrr.u-tokyo.ac.jp >:

Francesca DI LODOVICO (QMUL), Mark HARTZ (Kavli IPMU), Yoshinari HAYATO (ICRR), Yusuke KOSHIO (Okayama), Neil MCCAULEY (Liverpool), Akihiro MINAMINO (Kyoto), Shun-ichi MINE (UCI), Makoto MIURA (ICRR), Tsuyoshi NAKAYA (Kyoto), Shoei NAKAYAMA (ICRR), Yasuhiro NISHIMURA (ICRR), Kimihiro OKUMURA (ICRR), Hiroyuki SEKIYA (ICRR), Masato SHIOZAWA (ICRR, chair), Yasuo TAKEUCHI (Kobe), Hidekazu TANAKA (ICRR), Hirohisa TANAKA (UBC), Mark VAGINS (Kavli IPMU), Chris WALTER (Duke), Roger WENDELL (ICRR), Masashi YOKOYAMA (Tokyo)

 

Slides

• 150122-timetable-print.pdf
• 6thHKmeeting_1.JPG
• 6thHKmeeting_2.JPG
• 6thHKmeeting_3.JPG
• hkmeeting_150128_final_bulletin.pdf
• symposium_place_portrait.pdf

Wednesday 28 January

09:00 → 12:00 Near Detector/Flux Meeting

Convener: Prof. Mark Hartz (Kavli IPMU (WPI), The University of Tokyo/TRIUMF)

09:00 TITUS Introduction

Speaker: Prof. Francesca Di Lodovico (Queen Mary, University of London)

Slides titus_intro.pdf

09:10 TITUS Analysis

Speaker: Dr David Hadley (University of Warwick)

Slides TITUS analysis slides

09:45 TITUS Sensitivities

Speaker: Dr Sam Short (Queen Mary University of London)

Slides titus_sensitivity_studies_hkcollabmeeting_jan2015_samshort.pdf

10:00 TITUS MRD

Speaker: Dr Mark Rayner (Université de Genève)

Slides premeeting_rayner.pdf premeeting_rayner.pptx

10:15 nuPRISM Introduction

Speaker: Prof. Michael Wilking (Stony Brook University)

Slides nuPRISMHK6.pdf

10:40 nuPRISM Analysis

Speaker: Dr Mark Scott (TRIUMF)

Slides nuPRISM_Analysis_Overview_6thHKMeeting_WithSteriles.pdf

11:15 The WAGASCI Detector

Speaker: Dr Akihiro Minamino (Kyoto University)

Slides WAGASCI_20150131_minamino.pdf

15:00 → 17:30 Photo-detector and Accessaries

Conveners: Dr Shoei Nakayama (Kamioka Observatory, ICRR, University of Tokyo), Dr Yasuhiro NISHIMURA (ICRR)

Thursday 29 January

08:30 → 10:30 Registration

09:00 → 10:00 Convener Meeting

09:00 report

Speaker: Prof. Masato SHIOZAWA (ICRR, The University of Tokyo)

Slides 150128-ConvenerBoard.pdf

10:30 → 10:50 Opening Session

10:30 Opening remark

I will present backgrounds, meeting goals, and meeting outline.

Speaker: Prof. Masato SHIOZAWA (ICRR, The University of Tokyo)

Slides 150129-Shiozawa-Opening.pdf

10:50 → 11:50 Cavity and Tank

10:50 Detector design studies for CDR

I will give overview of detector design studies and their future plan for CDR.

Speaker: Prof. Masato SHIOZAWA (ICRR, The University of Tokyo)

11:10 Cavity design and optimization

This talk discusses the HK cavity design and its optimization.

Speaker: Dr Hide-Kazu TANAKA (ICRR, University of Tokyo)

Slides http://www-sk.icrr.u-tokyo.ac.jp/indico/getFile.py/access?contribId=1&resId=0&materialId=slides&confId=2186

11:30 Cavity design and optimization II

Speaker: Dr Taku Ishida (KEK)

Slides http://www-sk.icrr.u-tokyo.ac.jp/indico/materialDisplay.py?contribId=2&materialId=slides&confId=2186

11:50 → 12:50 Lunch Break

12:50 → 14:00 Cavity and Tank

12:50 Tank design and optimization

Speaker: Shoei NAKAYAMA (ICRR, The University of Tokyo)

Slides http://www-sk.icrr.u-tokyo.ac.jp/indico/getFile.py/access?contribId=0&resId=0&materialId=slides&confId=2186

13:10 Pressure-resistance of photo-sensor and cover

Speaker: Yasuhiro NISHIMURA

Slides 20150129_HKPDhpcase_Nishimura.pdf

13:30 Background Study for thin Hyper-K OD

We will discuss about the effect of thinner OD, especially for background.

Speaker: Dr Takatomi Yano (Kobe Univ.)

Slides HK_OD_BG_150127_ver2.pdf

13:50 Summary and plan

summary and plan of detector design studies.

Speaker: Prof. Masato SHIOZAWA (ICRR, The University of Tokyo)

14:00 → 14:20 Physics Potentials

14:00 Off-Axis angle optimisation studies

We will present sensitivity studies performed with the VaLOR analysis framework to determine the optimum off-axis angle for T2HK. Studies assumed a total integrated beam power of 7.5MW years and 320kA horn current.

Speaker: Mr Raj Shah (Oxford University)

Slides slides.pdf

14:20 → 14:40 Break

14:40 → 16:10 Physics Potentials

14:40 HyperK potential to study the leptonic unitarity triangle

I would like to discuss the potential path for Hyper-K and its upgrade to constrain the Unitarity Triangle of the leptonic sector.

Speaker: Dr Akira Konaka (TRIUMF/RCNP)

Slides HyperK-unitarity-jan2015.pdf

15:00 HK Sensitivity to Sterile Neutrinos and Lorentz Violation

I will present studies of Hyper-K's potential sensitivity to sterile neutrino oscillations induced by the parameters |Uµ4|^2 and |Uτ4|^2 and isotropic Lorentz-violating parameters from the Standard Model Extension (SME). These sensitivity studies are based on SK analyses, scaled up to equivalent HK livetimes.

Speaker: Dr Alexander Himmel (Duke University)

Slides 2015-01-29-sterile-LV-at-hk.pdf

15:20 Spectrometry of the Earth core using Hyper-K : Sensitivity study

Neutrino oscillation is sensitive to the electron density of the media. Hyper-K has a potential to measure the electron density of the deep Earth by measuring atmospheric neutrino oscillation. By combining the electron density and the matter density, we can measure the average chemical composition as the ratio of atomic number (Z) to atomic mass (A). We report the sensitivity of Hyper-K as the Z/A spectrometer. We also report the systematic uncertainty of oscillation probabilities derived from matter density models.

Speaker: Dr Akimichi Taketa (Earthquake Research Institute)

Slides OpenMeetingHK6th_taketa.pdf

15:35 Supernova study with Hyper-K

We will discuss about the physics ablity of Hyper-K about several Supernove detection.

Speaker: Dr Takatomi Yano (Kobe Univ.)

Slides HK_astro_150128.pdf

15:50 Summary and prospects of physics group activities

I will discuss the activities of physics working groups.

Speaker: Masashi Yokoyama (University of Tokyo)

Slides phys-summary.pdf

16:10 → 18:10 IBR Meeting

Friday 30 January

08:30 → 09:00 Registration

09:00 → 09:20 Opening Session

09:00 EC/IBR report and proto-collaboration

Speaker: Tsuyoshi NAKAYA (Kyoto University)

Slides HK-organization2.pdf

09:20 → 09:45 Water System

09:20 Overview and source water studies in Mozumi

WG2 summary especially on pure water system. Main strategy, main problem(source water), all the options, cost estimations will be shown. (Hopefully...)

Speaker: Dr Hiroyuki Sekiya (ICRR/IPMU)

Slides forwarding.pdf

09:35 Gd Studies in Mozumi

The current status of the EGADS project will be discussed.

Speaker: Prof. Mark Vagins (IPMU)

Slides Gad_HK_6th.pdf

09:45 → 10:55 Photo-detector and Accessaries

09:45 Update on Development of ETEL/ADIT 11" HQE PMT's

As of the end of January we have received ten prototype 11" HQE PMT's from the ETEL R&D facility n the U.K. We present preliminary results on PMT performance from testing at the University of Pennsylvania. Plans for further testing and development are also presented.

Speaker: Ed Kearns (Boston University)

Slides ET-PMT-Update.pdf

10:05 Status of the Photosensor Test Facility at TRIUMF

I will present the latest status of the PTF at TRIUMF

Speaker: Dr Tom Feusels (University of British Columbia)

Slides TomF_HKWorkshop_30Jan2015.pdf

10:30 Performance evaluation of the 50 cm box-and-line dynode photomultiplier tube

A box-and-line photomultiplier tube (PMT) with a 50 cm diameter size was developed by Hamamatsu. Its performance is superior to the conventional PMT used in Super-Kamiokande. We measured various performance of the PMT in detail. The specification and usability will be reported.

Speaker: Mr Miao Jiang (Kyoto University)

Slides Performance_evaluation_of_B&LPMT.pdf

10:55 → 11:15 Break

11:15 → 11:50 Photo-detector and Accessaries

11:15 Test of new photodetectors in a water tank

The second phase of the proof test with three 50 cm box-and-line photomultiplier tubes has started since 2014 summer. A calibration and basic performance measurement in the tank were performed. In addition, eight 20 cm hybrid photodetectors and five 50 cm PMTs with a high quantum efficiency have been also evaluated continuously from 2013 and its operational period will reach a year. This talk will present the recent progress and stability monitor of the photodetectors.

Speaker: Dr Yasuhiro NISHIMURA (ICRR)

Slides 20150130_HKPDtest_Nishimura.pdf

11:35 Photodetector R&D progress and plan

Ongoing R&D status and plan in near future will be presented.

Speaker: Dr Yasuhiro NISHIMURA (ICRR)

Slides 20150130_HKPDreport_Nishimura.pdf

11:50 → 12:50 Lunch

12:50 → 13:50 DAQ and Electronics

12:50 DAQ R&D status in Japan and US

DAQ R&D status in Japan and US

Speaker: Dr Yoshinari Hayato (Kamioka obs., ICRR, Univ. of Tokyo)

Slides 150129_DAQ_JP_US.pdf

13:10 Canadian Electronics R&D

We will report on progressing testing new signal shaping circuits (designed by Polish group) using 100MHz, 250MHz and 500 MHz digitizers. Will discuss medium term plans for making a full prototype digitizer boards. Will also report on latest progress on RapidIO communications tests.

Speaker: Mr Thomas Lindner (TRIUMF)

Slides hk_electronics_201501.pdf

13:30 UK DAQ activities

The UK is currently developing designs for Data Acquisition Systems (DAQ) for the full-scale detectors. The design of the system is being driven by ongoing physics studies. An overview of such studies and a conceptual design for a DAQ system will be outlined.

Speaker: Dr Giles Barr (University of Oxford)

Slides HKUKDAQPlans_FINAL.pdf

13:50 → 14:35 Detector Calibration

13:50 HK calibration: introduction and overview

This talk discusses overview and plan of HK detector calibration WG.

Speaker: Dr Hide-Kazu TANAKA (ICRR, University of Tokyo)

14:00 Calibration Source Deployment System

In current Super-K calibration, we need much manpower and working time. We have to automate these works in Hyper-K, which is 20 times larger than Super-K. We are planning to install a new deployment system in the Super-K detector as one of R&D's for Hyper-K. We report the current status.

Speaker: Dr Atsumu Suzuki (Kobe University)

14:20 LED Calibration System

Pulsed LEDs are a possible light source for integrated calibration systems for Hyper Kamiokande. The status and plans for the R&D on such systems in the UK will be presented.

Speaker: Dr Neil McCauley (University of Liverpool)

Slides LED_Calibration_jan_15.pdf

14:35 → 14:55 Break

14:55 → 16:30 Software

14:55 Introduction

Speaker: Prof. Chris Walter (Duke)

Slides introduction-c.walter.pdf

15:05 Recent updates to the WCSim software package

WCSim is an open-source, Geant4-based code that was designed to simulate water Cherenkov detectors. In this talk, I will discuss features which have been added to the code since the last HK open meeting.

Speaker: Erin O'Sullivan (Duke University)

Slides WCSim_HyperKOpen_jan2015.pdf

15:25 Hyper-K Event Reconstruction

The current status of the Hyper-K event reconstruction algorithm for Hyper-K will be presented.

Speaker: Prof. Michael Wilking (Stony Brook University)

Slides fiTQunHK6.pdf

15:45 Generalized Neutrino Event Generator

HK will require software to interface between atmospheric flux models, the HK detector geometry, and neutrino interaction simulators as the first step in an atmospheric MC. This talk will introduce software currently under development for SK which is intended to be easily portable to an experiment like HK, and easily expandable to non-atmospheric neutrino fluxes.

Speaker: Christopher Kachulis (Boston University)

Slides HK_Meeting_Jan2015.pdf

15:55 Computing for Hyper-K

An overview of the current computing strategy and plans will be given. The simulation production status will be presented.

Speaker: Prof. Francesca Di Lodovico (Queen Mary, University of London)

Slides hkproduction.pdf

16:15 Summary of the Software session and Prospects

In this talk, I will summarize current status of software development and discuss future prospects.

Speaker: Dr Makoto Miura (Kamioka Observatory, ICRR, University of Tokyo)

Slides summary-sw-20150130.pdf

16:30 → 16:50 Break

16:50 → 17:35 J-PARC and Beamline

16:50 J-PARC status and upgrade plans

Speaker: Prof. Tadashi Koseki (KEK)

17:15 Neutrino beam-line status and upgrade plans

Speaker: Prof. Yoshiaki Fujii (KEK)

17:35 → 18:15 Near Detectors

17:35 NuPRISM Overview

The current status of the nuPRISM detector for T2K and Hyper-K will be presented.

Speaker: Prof. Michael Wilking (Stony Brook University)

Slides nuPRISMHK6.pdf

17:55 NuPRISM Analysis Overview

An overview of the status and results of the ongoing NuPRISM analyses and the planned future analysis work.

Speaker: Dr Mark Scott (TRIUMF)

Slides nuPRISM_Analysis_Overview_6thHKMeeting_v2.pdf

Saturday 31 January

08:30 → 09:00 Registration

09:00 → 10:35 Near Detectors

09:00 TITUS: Introduction to the Intermediate Detector and Physics

The Tokai Intermediate Tank with Unoscillated Spectrum (TITUS) is a proposed new near detector for the Hyper-Kamiokande beam programme. The baseline design for TITUS features a 2 ktonne water Cherenkov (WC) detector at a distance of ~2 km from the J-PARC neutrino beam. TITUS is a 'next-generation' WC detector, including technological advances such as gadolinium-loading, and LAPPD photosensors. In addition, the detector will be partially enclosed by a magnetised muon range detector. This talk introduces the nominal design of TITUS, and details the physics potential of its WC component.

Speaker: Dr Matthew Malek (Imperial College London)

Slides Malek-20150131-TITUS.pdf

09:30 A Magnetized Muon Range Detector for TITUS

We clarify the design of the magnetized Muon Range Detector (MRD) for the proposed TITUS intermediate detector. Such an magnetized MRD would contain muons from interactions in the water Cherenkov detector, and would lend an extra advantage to the detector - the capacity to distinguish meutrino and antineutrino events, through the observation of the muon charge. We address both practical considerations and the foreseen event reconstruction performance.

Speaker: Mark Rayner (Université de Genève)

Slides rayner_titus.pdf rayner_titus.pptx

09:50 A 3D grid-like neutrino near detector with a water target, WAGASCI

A test experiment, T-59, to develop a 3D grid-like neutrino near detector with a water target for measurement of neutrino cross sections at the T2K near detector hall was approved by J-PARC PAC. We are developing the detector to reduce the uncertainty on neutrino cross sections for T2K oscillation analyses. A new idea, a 3D grid-like structure of scintillator bars, is adopted to detect tracks of charged particles with 4pi angular acceptance and high efficiency. Advantages of this detector over the current T2K neutrino near detector are larger angular acceptance and larger mass ratio of water to scintillator bars. The current status of the test experiment and the future potential to upgrade the detector to a near detector of T2HK will be presented.

Speaker: Dr Akihiro Minamino (Kyoto University)

Slides WAGASCI_20150131_minamino.pdf

10:15 Applications of Water-based Liquid Scintillator in the T2K Near Detector

A fine-grained, water-based liquid scintillator detector to replace the current passive water + plastic scintillator target in FGD2 in the T2K ND280 tracker system would allow the direct tracking of low energy hadrons emitted by neutrino interactions on oxygen. We are currently building a 1-cell prototype using the WbLS developed at BNL to test for light output.

Speaker: Prof. Stanley Yen (TRIUMF)

Slides Yen_WBLS_tests_Jan2015_j.pdf

10:35 → 10:55 Break

10:55 → 11:55 Summary

10:55 Summary

14:00 → 15:30 Inaugural Symposium of the Hyper-Kamiokande Proto-collaboration

14:00 Overview of the Hyper-Kamiokande Project

Speaker: Prof. Masato SHIOZAWA (ICRR, The University of Tokyo)

14:10 The J-PARC Neutrino Beam Facility

Speaker: Prof. Takashi Kobayashi (KEK)

14:20 The International Proto-Collaboration

Speaker: Prof. Francesca Di Lodovico (Queen Mary, University of London)

14:35 International Cooperation

Speaker: Prof. Chris Walter (Duke University)

14:50 Memorandum for the Promotion of the Hyper-Kamiokande Project

Speakers: Prof. Masanori Yamauchi (KEK), Prof. Takaaki Kajita (University of Tokyo)

15:05 Closing

Speaker: Prof. Tsuyoshi NAKAYA (Kyoto)