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Overview of software development toward Hyper-K

Overview of software development toward Hyper-K. M. Miura Kamioka observatory, ICRR. 1. Introduction. Letter of Intent for Hyper-Kamiokande Physics potential  Use the current Super-K analysis tools Base of the Super-K tools;. - Language: Fortran77. - Data: ZBS.

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Overview of software development toward Hyper-K

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  1. Overview of software development toward Hyper-K M. Miura Kamioka observatory, ICRR

  2. 1. Introduction • Letter of Intent for Hyper-Kamiokande Physics potential Use the current Super-K analysis tools • Base of the Super-K tools; - Language: Fortran77 - Data: ZBS - Simulation: GEANT3  Galapagos ! Out of date, already.

  3. Hyper-K analysis should use; - Language: Fortran77  C++ - Data: ZBS  ROOT - Simulation: GEANT3  GEANT4 • Easier maintenance than using old CERN tools. • Easier for young people to join.

  4. 2. Detector simulation • WCsim: GEANT4 base Water Cherekov detector simulator developed by DUKE Univ.  Chris’s talk • Milestones - Install custom made routines in SK (cherenkov light generation, light propagation in water, hadron interactions, e.t.c.) - Reproduce SK simulation.

  5. Detector simulation(cont’d) - Make one compartment 54 m 48 m 49.5 m

  6. Detector simulation(cont’d) - Make one tank (5 compartments), can deal particles pass several compartments. m m NOTE: Energy acceptance around horizontal is different from SK.  affect on Atm.n . - Entire volume (challenging?): m passing both tank.

  7. 3. Reconstruction tool • Difficult to re-write all Super-K reconstruction tools by c++ • New reconstruction tool, fiTQun: Simultaneous maximum likelihood fit for track information developed by Canadian group, written in C++, for ATMPD and T2K data.  Mike’s talk • Milestones - Install in Super-K analysis and check performance.

  8. Reconstruction tool (cont’d) - Does fiTQun work for Low E events? If no, need to export the current Low E fitter to Hyper-K. - Apply for one compartment. - How treat particles which pass multiple compartments?

  9. 4. Detail Design of HK • Compartments • - 10 compartments guarantee same performance as SK. • Dead space • ~ 1 m structure+2 m fiducial x2 •  5 m x4 x2 (tank)x cross section • ~ SK volume! • Can we reduce number of compartment ? • Increase fiducial volume • Reduce costs. Fiducial volume Fiducial volume Structure ~1 m MC study is important and urgent !

  10. 4. Summary • Software development is really important and urgent. • There are a lot of work. • Let’s hear the current status in following two talks . • If you get interest in, please sign up and join to parallel session !

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