Past Organizational Charts

(Corresponding organizational chart linked to date)

• Oct. 21, 2009 First version
• Feb. 14, 2011 EB:H.Palka deceased, D.Asner added, IR leader:M.Iwasaki->H.Nakayama, Tracking leader:M.Heck added
• May 14, 2011 IB Chair:L.Piilonen->E.Won, EB:A.Bozek added
• Aug. 3, 2011 Physics groups:t-indep(B.R.Ko), t-dep(M.Staric), Dalitz(J.Dalseno), Missing E(K.Hara) started
• Nov. 7, 2011 Physics coordinator:K.Trabelsi appointed
• Dec. 5, 2011 Speakers Committee:T.Muller->C.Schwanda added
• Feb. 27, 2012 KLM leader:L.Piilonen added
• Apr. 23, 2012 Analysis model leader:P.Urquijo
• Feb. 16, 2013 FB(Financial Board) added
• Mar. 9, 2013 EB: M. Roney added
• Jun. 3, 2013 New IB Chair: Z.Dolezal
• Jul. 1, 2013 New Organization with new spokesperson, T. Browder
• Jul. 31, 2013 Data Transfer/Network group (leader : M.Schram)
• Sep. 9, 2013 minor update
• Sep. 26, 2013 New Speakers Committee chair : Alan Schwartz (since Sep 15, 2013)
• Oct. 04, 2013 Integration leaders : I.Adachi, S.Tanaka / TOP group leader : J. Fast / ARICH group leader : S. Nishida, S. Korpar / BKG group leader : S. Vahsen / correction FB : Z.P. Zhang (China) -> C.P. Shen, EB : C. Yuan -> C.Z. Yuan
• Oct. 17, 2013 Mexican FB member : Mario Ivan Martinez
• Nov. 21, 2013 New tracking group co-convener : Eugenio Paoloni, New Speakers Committee member : Ida Peruzzi
• Mar. 17, 2014 New database group co-convener : Lynn Wood, Data-handling group closed.
• Apr. 23, 2014 The physics coordinator : K. Trablesi relieved.
• Apr. 28, 2014 The physics working group reorganized.
• May 29, 2014 H.Miyake and K.Hayasaka was appointed to be the MC production manager and the Monitor team leader.
• June 17, 2014 EB member (Italy) : P.Lubrano -> F.Forti
• July 24, 2014 Simulation group leader : T.Hara -> D.Kim
• Sep. 12, 2014 FB member (Italy) : F.Forti -> G.Finocchiaro
• Nov. 26, 2014 Generators: T.Ferber, Radiative: J. Yamaoka added, Y(nS) -> Quarkonium, and T. Pedlar added, Charm + charmonium -> Charm, Tau & Low multiplicity -> T. Ferber added
• Feb. 7, 2015 SVD : C.Schwanda, Background : M.Staric, Distributed Computing Architecture : I.Ueda, "Data transfer" is renamed to "Data Management", H.Miyake's role is changed from "MC prod" to "Production System"
• May. 7, 2015: Thomas Kuhr's mail address updated. Alignment group renamed to "Alignment and Calibration"
• Oct. 6, 2015: New management structure; add Operations; P. Krizan acting technical coordinator; add Phase II physics; update IB chair
• Oct. 15, 2015: Add Outreach committee; correct missing Charm group; remove Inst. Scint. Materials Ukraine
•  Oct. 27, 2015: Y. Kato, training
•  Nov. 12, 2015: A. Gaz added to time-dependent CP
•  Dec. 16, 2015: Claus Kleinwort and Tadeas Bilka, alignment and calibration
•  Jun. 20, 2016: Carlos Marinas and Katsura Nakamura, VXD commissioning leaders (Phase II)
• Aug. 3, 2016: Clustering and Neutrals: Torben Ferber, Charged PID: Luka Santelj, Online Integration: Christian Pulvermacher
• Sep. 20, 2016: Add Data Production group. Coordinator: Jake Bennett, Deputy: Karim Trabelsi
• Oct. 5, 2016: Update of physics group structure (effective Sept. 9):
  • Semileptonic & Leptonic: add Florian Bernlochner
  • Radiative and  Electroweak Penguins: Jared Yamaoka completed term
  • Hadronic B split into: B → Charm Pablo Goldenzweig and Bilas Pal; B → Charmless Jim Libby and Karim Trabelsi
  • Bottomonium: Umberto Tamponi, Bryan Fulsom
  • Charmonium: Chengping Shen
  • Low multiplicity and tau: Hideyuki Nakazawa  completed term
  • Combined particles: Francesco Tenchini
  • EvtGen (generators liaison): Florian Bernlochner
• Oct. 21, 2016: Ida Peruzzi, chair of Speakers Committee; Sven Vahsen, member
• Jan. 20, 2017:Toru Iijima replaces Jim Fast as TOP convener; Gary Varner deputy
• Feb. 1, 2017: Diversity committee: Kay Kinoshita (chair), Masako Iwasaki, Concettina Sfienti, Dave Besson, Mario Posocco
• June 1, 2017: Hans- Günther Moser replaces Christopher Hearty as chair of the Institutional Board; Alan Schwartz as deputy. Leo Piilonen, chair of Publications Committee. Chunhua Li new convener of Online Integration Group; Martin Ritter convener of new Framework and Infrastructure Group; Ilya Komarov convener of new Documentation,Training, and Outreach group; Racha Cheaib, skim manager
• July 4, 2017: Move CSG at the level of EB, remove 'data processing' (computing), include sw liasons in subdetector boxes, replace M. Schramm by V Bansal for Network (Computing)
• October 15, 2017: charged PID → Jan Strube, Analysis Software and tool verification → Sam Cuncliffe
• November 2017: Subgroups moved to different groups: Generators: software -> physics; Analysis tools: physics -> software; Calibration & Alignment: software -> data production; Background: software -> data production; D. Dossett added as software liaison for Alignment & Calibration 
• January 2018: Add Physics liaison chair (A. Morda) under data production. S. Sandila added to Radiative & Electroweak Penguin. Trigger Coordinator: C. Li → C. Hearty; online integation: C. Li → T. Haugh; Finacial board chair: Shoji Uno (from April 1st); Run coordinator: Ichiro Adachi (from April 1st).
• February 2018: Network: Vikas Bansal replaced by Silvio Pardi
• April 2018: Financial board chair: Shoji Uno, run coordiator: Ichiro Adachi, shift manager: Ricardo de Sangro
• May 2018: Tracking: Martin Heck → Sasha Glazow
• October 2018: New IB Chair: Alan Schwartz; new Deputy: Gagan Mohanty; Diversity Officers: K. Kinoshita, M. Barrett
• November 2018: New Data Production structure
• February 2019: New Physics subgroup co-conveners, new EB Chair, new CDC manager, new Software online integration manager
• February 10, 2019: Update Physics subgroup conveners, add box for Upgrade
• February 18, 2019: small updates for Software subsystem coordinators
• May 11, 2019: updates of co-conveners for online integration, hadronic B decays, and time-dependent CPV
• May 28, 2019: fix error from Oct 2016, members of B→charm and B→ charmless were swapped
• August 8, 2019: G. Mohanty as a new IB Chair, T. Higuchi as a new Deputy IB Chair, T. Iijima as a new Spokesperson. K. Trabelsi as a new Deputy Spokesperson, G. Rizzo and K. Nakamura as new Technical/VXD/SVD leader and deputy, respectively, J. Kumar as an additional Data-Production/Calibration manager, F. Tenchini and N. Dash as new Data-Production/MC-processing manader and deputy, factoring out a new group "Performance" coordinated by T. Ferber and P. Urquijo (deputy) from the Software group, restructuring in the Physics group
• October 27, 2019: A. Gaz as a new Physics Coordinator, Technical/IR moved to Technical/VXD/BP, Technical/BKG-MDI split to Technical/BKG and Operations/MDI, two new subgroups under the Upgrade group Upgrade/VXD-Upgrade-R&D-Working-Group and Upgrade/Beam-Polarization-Upgrade-Working-Group, restructuring in the Computing group, S. Lacaprara as a new Physics/Time-dependent-CP-violation co-convener
• January 22, 2020: Yun-Tsung Lai as a new Technical/TRG software leader
• February 17, 2020: merging Technical/EKLM and Technical/BKLM subgroups into Technical/KLM group, T. Koga as a new Technical/TRG software leader, restructuring in the Data-Management group, S. Logngo as a new Performance/Neutrals leader, A. Di Canto Logngo as a new Performance/Hadron-ID leader, A. Di Canto Logngo as a new Performance/Hadron-ID leader, P. Urquijo a new Performance/Lepton-PID leader
• March 12, 2020: Y. Kato as a new Deputy Computing Coordinator, appointments of I. Ueda, T. Hara, S. Pardi, M. H. Villanueva as new Distribute-Computing, Core-Computing, Infrastructure, and User-Support subgroup leaders, respectively.
• April 7, 2020: K. Matsuoka as a new Run Coordinator
• April 12, 2020: B. Paschen as a new Technical/PXD technical coordinator
• April 13, 2020: S. Glazov as a new Technical/CDC software/performance manager
• May 30, 2020: G. Dujany as a new Data production/calibration manager
• June 1, 2020: T. Higuchi and B. Golob as new IB Chair and new Deputy IB Chair, respectively
• June 24, 2020: K. Yoshihara as a second Deputy Run Coordinator; M. Ritter and F. Meier as new Software Coordinator and Deputy Software Coordinator, respectively
• July 2, 2020: K. Lieret as the a Software/Documentation and training manager
• July 28, 2020: U. Tamponi as a new Data Production Coordinator Deputy
• November 9, 2020: Updates in Spokesperson, PC Coordinator elect, Speakers Committee Chair and the members, Diversity Officers, Technical Coordinator, and EB members
• November 24, 2020: E. Oxford as a new Data Production Validation manager
• February 12, 2021: E. Manoni as a new Radiative and electroweak penguin Convene
• April 11, 2021: L. Zani as a new Data-production/calibration-manager, A. Martini as a new Data-production/MC-processing manager, S.-K. Park as a new Software/online integration manager, G. Casarosa as a new Software/tracking manager, K. Hara and K. Matsuoka as new SVD and TOP liaisons, respectively.
• April 18, 2021: B. Spruck as a new member of the PXD management team.
• April 28, 2021: M. Milesi as a new Data Production/Data processing manager, installment of a new box Data Production/Global tag with P. Laycock as the manager, removal of the Data Production/background box.
• May 5, 2021: Correction to the Physics/Physics modeling, generator box
• May 11, 2021: Correction to the Software/Simulation management name,  P. Laycock as a new Software/Database manager, G. Casarosa as a new Software/Timing & Event T0 manager.

• Oct. 12, 2021 : Expert leader (Hiroaki Ono) is added under Distributed computing architecture
• April 19, 2022 : Computing coordinator deputy: Kato Yuji --> Michel Hernandez Villanueva. End- user client tools: Michel Hernandez Villanueva --> Anil Panta. User analysis: Michel Hernandez Villanueva --> Anil Panta
• June 6, 2022: A. Soffer replacing B. Golob as IB chair, D. Kim replacing A. Soffer as IB deputy chair.
• July 8, 2022: Physics working groups on hadronic charmless B decays (convened by Pablo Goldenzweig, Mirco Dorigo) and hadronic B to charm decays (convened by Minakshi Nayak and Karim Trabelsi) merged into a single hadronic B decays working group (convened by Pablo Goldenzweig, Mirco Dorigo). 
  Akimasa Ishikawa replaced Sam Cunliffe as co-convener of dark sector physics working group.
  Christoph Schwanda replaced Racha Cheaib as co-convener of the semileptonic B decay working group.
  Sasha Glazov replaced Saurabh Sandilya as co-convener of the EW penguin working group.
  Thibaut Humair replaced Stefano Lacaprara as co-convener of the time-dependent CP violation working group.
• July 31, 2022: Alessandro Calcaterra replaced Riccardo de Sangro as shift manager.
  Bottomonium and Charmonium working groups combined into Quarkonium WG with Roman Mizuk and Junhao Yin as conveners.
  Soeren Prell replaced Armine Rostomyan as tau co-convener. 
• October 24, 2022: Jim Libby replaced Enrico Graziani as Dark-Sector Group co-convener.
  Peter Lewis replaced Will Sutcliffe as Semileptonic B Group co-convener.

• November 7, 2022: Emi Kou replaced Elisabetta Prencipe as diversity officer.
  Sven Vahsen replaced Jim Libby as Speakers Committee chair.
  Alessandro Calcaterra replaced Riccardo de Sangro as Shifts + Service Committee co-chair (This modification should have entered on July 31, 2022)
  Jake Bennet (previous deputy) replaced Fabrizio Bianchi as Computing Steering Group chair.
  Carlos Marina (previous deputy) replaced Ichiro Adachi as Technical Coordinator. Katsuro Nakamura became TB deputy.
  K. Inami (previous deputy) replaced G. Varner as TOP convener. M. Bessner became deputy.
  T. Koga replaced Y. Iwasaki as TRG convener.
  Upgrade Group overhaul: Allessandro Gaz for physics performance, Hiro Nakayama and Andrii Natochi for MDI, Carlos Marinas for Inner Detector, Keisuke Yoshiharao for Outer Detector. Beam polarization is unchanged.
  Data Production Group changes: Shun Watanuki replaced M. Milesi as Data Processing manager. No one replaced M. Dorigo as deputy.  T. Shillington replaced R. Cheaib as Skim manager. R. Cheaib replaced P. Grace as deputy. M. Prim (previous deputy) replaced L. Zani as Calbiration manager. M. De Nuccio became deputy. Patrick Ecker replaced E. Oxford as Validation manager.
  Software Group changes: F. Meier replaced K. Lieret as Documentation and training convener. J. S. De stefano replaced P. Laycock and J. Kumar as DB convener. Yo Sato replace F. Meier as Analysis software and tool validation convener.

• January 31, 2023: Added A. Natocchii as additional deputy group leader of Background Group under Technical Coordinator. 
• February 18, 2023: 
  SVD Group changes: Kookhyun Kang replaced Katsuro Nakamura as SVD deputy. Luigi Corona replaced Francesco Tenchini as SVD software liaison/performance.
  KLM Group changes: Leo Piilonen replaced Kirill Chilikin as KLM software liaison. Keisuke Yoshihara left KLM performance.
  Data Production Group Change: Giovanni Gaudino replaced Alberto Martini as MC processing manager.
  Angelo Di Canto replaced Phillip Urquijo as Physics Performance Coordinator
• March 20, 2023:  Soeren Prell appointed as KLM performance. 
• March 23, 2023:  Belated modifcation. Kenta Uno replaced Marco Milesi as peformance/particle ID co-convener earlier in 2023.
• April 17, 2023:
  • Physics conveners changes: Michel Bertemes replaced Longke Li as Charm co-convener, Lucak Santelj replaced Pablo Goldenzweig as Hadronic B co-convener, and Nirahika Rout replaced Florian Bernlochner as Physics modeling/Generators co-convener.
  • Merged common software and performance subgroups: name and co-convener changes also
    • Particle ID → Charged particle ID
    • Neutrals: added co-covener Eldar Ganiev
    • Tracking, Tracking and vertexing → Tracking and vertexing: Thomas Lueck replaced Sasha Glazov and Laura Zani
    • Trigger → Trigger and event properties: added co-convener Radek Zlebcik
    • Analysis software and tools validation, Analysis tools and accelerator → Analysis tools: added co-convener Will Sutcliffe
• May 11, 2023: MC processing deputy manager changed from Ansu Johnson to Gaurav Sharma
• May 12, 2023: Role name change for calarification. Expert leader to Data production technical manager
• May 30, 2023: Deputy run coordinator, K. Yoshihara → K. Uno
• June 28, 2023: June 2023 B2GM changes
  • Spokesperson: T. Iijima → K. Trabelsi, no deputy spokesperson
  • IB office: Abi Soffer, D. Kim (deputy) → D. Kim, T. Kuhr (deputy)
  • Financial Officer: S. Uno → S. Nishida
  • MDI group: Yoshihiro Funakoshi (deputy) → Takuya Ishibashi and Naoko Iida (deputies)
    • BKG (Beam background) group moved from Technical to MDI
    • BKG convener S. Vahsen → A. Natochii
    • BKG deputy H. Hakayama and A. Natochii → H. Nakayama
    • Beam loss monitor group (since 2021) officialy included in the chart.
    • Beam loss monitor convener K. Yoshihara → K. Uno
  • Data production group:
    • Calibration manager: M. Prim → Renu Garg
  • Computing group: 
    • Coordinator T. Hara → I. Ueda
    • Deputy: M. Hearnandez Villanueva → M. Hernandez Villanueva and C. Serfon
    • Distributed computing architecture
      • Distributed data management: C. Serfon → open
      • End-user client tools: A. Panta → M. Hearnandez Villanueva
    • User support: A. Panta → M. Hearnandez Villanueva
  • Software group:
    • Timing and event T0 convenver: G. Casarosa → C. Wessel
    • Database convener: Ruslan Mashinistov added
• July 12, 2023:
  • Chart generated from B2MMS
  • FB Chair: S. Uno → S. Nishida
• September 5, 2023:
  • Physics Coordinator: Diego Tonelli → James Frederick Libby
  • Neutrals: S. Longo → D. Pitzl
  • Trigger and event properties: C. Hearty → M. Campajola
  • Analysis tools: W. Sutcliffe stepped down
• September 24, 2023:
  • Semileptonic and leptonic: P. Lewis → L. Cao

• • Dark sector and low multiplicity: J. Libby → C. Hearty

• • Analysis tools: V. Vobbilisetti added
• November 11, 2023 (changes in October 2023):
  • Deputy Spokesperson: Peter Krizan
  • Deputy Physics Coordinator: Shohei Nishida
  • Diversity Officer: Steve Robertson → Abi Soffer
  • EB member - France representative: Karim Trabelsi  → Justin Serano
  • Speakers Committee Deputy Chair: Isabelle Ripp-Baudot
  • Speakers Committee members: Isabelle Ripp-Baudot, Janis McKenna, Youngjoon Kwon → Jing-Ge Shiu, Roberto Mussa, Steven Robertson, Kerstin Tackmann, Ezio Torassa, Andreas Warburton
  • Publication Committee members: Soeren Prell, Paoti Chang → Fabrizio Bianchi, Karin Schönning, John Yelton
  • Outreach Co-Chair: Rok Pestotnik added
  • Shifts + Service Committee removed
  • DAQ leader: R. Itoh stepped down
  • Physics group:
    • Semileptonic & Leptonic: C. Schwanda → M. Prim

• • • Dark sector & low multiplicity: A. Ishikawa → L. Corona

• • • Tau: M. Hernandez Villanueva → L. Zani
  • Performance group:
    • Charged PID: K. Uno → S. Wallner
  • Data production group:
    • Coordinator: U. Tamponi stepped down
    • Deputy: G. Dujany
    • Data processing: G. Gaudino, S. Watanuki → deputy
    • Skim deputy: R. Chaib → V. Bertacchi
    • Calibration deputy: U. Tamponi
    • Operation: G. Dujany
    • Validation: P Ecker stepped down and the subgroup removed
    • Calibration software: G Dujany stepped down and the subgroup removed
    • Global tag removed
  • Computing group:
    • DDM (level 3): R. Mashnistov
• February 6, 2024:
  • PXD: Carsten Niebuhr → Botho Paschen, deputy: Björn Spruck
• April 1, 2024:
  • Physics:
    • TCPV: T. Higuchi → M. Veronesi
    • EW: E. Manoni → S. Stefkova
    • Charm: G. Casarosa → J. Bennett
    • Quarkonium: Junhao Yin → Sen Jia
  • Software
    • Documentation and Training: Frank Meier → Priyanka Cheema
    • Analysis tools: Yo Sato → Sviatoslav Bilokin
    • Minor release coordinator: Giacomo de Pietro → Tommy Lam
• June 10, 2024:
  • IB Chair: Doris Kim → Thomas Kuhr
  • IB Deputy: Thomas Kuhr → Andrzej Bozek
  • Upgrade Coordinator: Francesco Forti → Carlos Marinas
  • Technical
    • Coordinator: Carlos Marinas → Katsuro Nakamura
    • Deputy: Katsuro Nakamura → Giuliana Rizzo
    • SVD leader: G. Rizzo → L. Zani
  • Data Production
    • Calibration deputy M. De Nuccio removed
• July 16, 2024:
  • Operations:
    • Run Coordinator: Kodai Matsuoka → Kenta Uno
    • Run Coordinator Deputy: Pavel Krokovny → Yinghui Guan (already in April), Kenta Uno → Martin Bessner
• October 24, 2024:
  • Speakers Commitee
    • Chair: Sven Vahsen -> Steven Robertson
    • no deputy (Isabelle Ripp-Baudot) any more
  • Technical
    • PXD: Botho Paschen -> Björn Spruck, Deputy: Björn Spruck -> Fabian Becherer, Technical Coordinator: Simon Reiter
    • DQM: Björn Spruck, Luka Santelj
  • Operations:
    • Shift manager: Alessandro Calcatarra -> Ezio Torassa
  • MDI
    • BKG: Deputy: Hiroyuki Nakayama -> Qingyuan Li
    • Beam Loss Monitor: K. Uno -> T. Lau
    • Machine Data Analysis: Katsuro Matsuoka
    • Machine Learning forOperations: H. Nakayama
  • Upgrade:
    • Deputy: Peter Lewis
    • QCS: K. Shibata
    • Background and Lumi.oversight:
    • VTX (IR): J. Baudot
    • CDC: Y. Nakazawa
    • TOP: E. Torassa
    • ECL:
    • KLM: S. Prell
    • TRG: T. Ferber
    • Electronics and DAQ: Y. Lai
    • Photosensors: S. Korpar
    • Removed groups: MDI working group (Hiro Nakayama, Andrii Natochi), Inner detector working group (Carlos Marinas), Outer detector working group (Keisuke Yoshihara), Beam polarization upgrade working group (John Michael Roney)
  • Data Production
    • Validation Manager: P. Ecker, C. Harris
  • Physics:
    • Radiative & ElectroweakPenguin: Sasha Glazov -> Gaetano de Marino
    • Hadronic B: Mirco Dorigo -> Xiaodong Shi