Precision tests of the Standard Model based on high-energy collisions between the proton and the longitudinally-polarized electron

• Project/Area Number: 16001002
• Research Category: Grant-in-Aid for Specially Promoted Research
• Allocation Type: Single-year Grants
• Review Section: Science and Engineering; Mathematics and Physics
• Research Institution: High Energy Accelerator Research Organization
• Principal Investigator: TOKUSHUKU Katsuo High Energy Accelerator Research Organization, 素粒子原子核研究所, 教授 (80207547)
• Co-Investigator(Kenkyū-buntansha): NAGANO Kunihiro 大学共同利用機関法人高エネルギー加速器研究機構, 素粒子原子核研究所, 助教 (90391705) ; KUZE Masahiro 東京工業大学, 大学院・理工学研究科, 准教授 (00225153) ; YAMAZAKI Yuji 神戸大学, 大学院・理学研究科, 准教授 (00311126) ; YAMADA Sakue 大学共同利用機関法人高エネルギー加速器研究機構, 名誉教授 (70011658) ; HAMATSU Ryosukb 首都大学東京, 客員准教授 (20087092)
• Project Period (FY): 2004 – 2008
• Project Status: Completed (Fiscal Year 2008)
• Budget Amount: ¥279,630,000 (Direct Cost: ¥215,100,000、Indirect Cost: ¥64,530,000); Fiscal Year 2008: ¥34,450,000 (Direct Cost: ¥26,500,000、Indirect Cost: ¥7,950,000); Fiscal Year 2007: ¥49,270,000 (Direct Cost: ¥37,900,000、Indirect Cost: ¥11,370,000); Fiscal Year 2006: ¥62,530,000 (Direct Cost: ¥48,100,000、Indirect Cost: ¥14,430,000); Fiscal Year 2005: ¥68,900,000 (Direct Cost: ¥53,000,000、Indirect Cost: ¥15,900,000); Fiscal Year 2004: ¥64,480,000 (Direct Cost: ¥49,600,000、Indirect Cost: ¥14,880,000)
• Keywords: レプトン / クォーク / グルーオン / 素粒子 / 標準模型 / 偏極電子・陽子衝突実験 / 陽子の構造 / 加速器 / 新粒子探索 / 量子色力学 / 偏極電子・陽子働突実験 / 左右非対称性 / 回折反応

Research Abstract

ドイツDESY研究所が建設した、世界最高エネルギーの偏極電子・陽子衝突型加速器HERAを用いて、国際共同実験を推進し、陽子の内部構造の研究、つまり陽子内部のクォークやグルーオンの運動量分布の精密パラメータ化と、素粒子の標準模型の精密検証を進めた。

Research Products

• [Journal Article] Combined Measurement and QCD Analysis of the Inclusive e± Scattering Cross Section at HERA (2010)
  • Author(s): F.D. Aaron, et al.
  • Journal Title: JHEP Vol.2010,No.1 Pages: 1-63
• [Journal Article] 高エネルギー陽子の描像:HERAでの展開からLHC、LHeCへ (2010)
  • Author(s): 長野邦浩
  • Journal Title: 日本物理学会誌 No3 Pages: 148-155
• [Journal Article] Measurement of High-Q^2 Neutral Current Deep Inelastic e-p Scattering Cross Sections with a Longitudinally Polarised Electron Beam at HERA (2010)
  • Author(s): ZEUS Collaboration, S.Chekanov, et al.
  • Journal Title: The European Physical Journal C65 Pages: 65-79
  • Peer Reviewed
• [Journal Article] Measurement of dijet photoproduction for events with a leading neutron at HERA (2010)
  • Author(s): ZEUS Collaboration, S.Chekanov, et al.
  • Journal Title: Nuclear Physics B 827 Pages: 1-33
  • Peer Reviewed
• [Journal Article] Measurement of the Longitudinal Proton Structure Function at HERA (2009)
  • Author(s): S. Chekanov, et al.
  • Journal Title: Physics Letters B 682 Pages: 8-22
• [Journal Article] Measurement of High-Q2 Neutral Current Deep Inelastic e-p Scattering Cross Sections with a Longitudinally Polarised Electron Beam at HERA (2009)
  • Author(s): S. Chekanov, et al.
  • Journal Title: European Physical Journal C 62 Pages: 625-658
• [Journal Article] Production of excited charm and charm-strange mesons at HERA (2009)
  • Author(s): ZEUS Collaboration, S.Chekanov, et al.
  • Journal Title: The European Physical Journal C60 Pages: 25-42
  • Peer Reviewed
• [Journal Article] Measurement of beauty production from dimuon events at HERA (2009)
  • Author(s): ZEUS Collaboration, S.Chekanov, et al.
  • Journal Title: JHEP 02 Pages: 32-32
  • Peer Reviewed
• [Journal Article] A Measurement of the Q^2, W and t Dependences of Deeply Virtual Compton Scattering at HERA (2009)
  • Author(s): ZEUS Collaboration, S.Chekanov, et al.
  • Journal Title: JHEP 05 Pages: 108-108
  • Peer Reviewed
• [Journal Article] Deep Inelastic Scattering with Leading Protons or Large Rapidity Gaps at HERA (2009)
  • Author(s): ZEUS Collaboration, S.Chekanov, et al.
  • Journal Title: Nuclear Physics B 816 Pages: 1-61
  • Peer Reviewed
• [Journal Article] Leading Proton Production in Deep Inelastic Scattering at HERA (2009)
  • Author(s): ZEUS Collaboration, S.Chekanov, et al.
  • Journal Title: JHEP 09 Pages: 76-76
  • Peer Reviewed
• [Journal Article] Measurement of Charged Current Deep Inelastic Scattering Cross Sections with a Longitudinally Polarised Electron Beam at HERA (2009)
  • Author(s): ZEUS Collaboration, S.Chekanov, et al.
  • Journal Title: The European Physical Journal C61 Pages: 223-235
  • Peer Reviewed
• [Journal Article] Subjet Distributions in Deep Inelastic Scattering at HERA (2009)
  • Author(s): ZEUS Collaboration, S.Chekanov, et al.
  • Journal Title: The European Physical Journal C63 Pages: 527-548
  • Peer Reviewed
• [Journal Article] Measurement of D^± and D_0 Production in Deep Inelastic Scattering Using a Lifetime Tag at HERA (2009)
  • Author(s): ZEUS Collaboration, S.Chekanov, et al.
  • Journal Title: The European Physical Journal C63 Pages: 171-188
  • Peer Reviewed
• [Journal Article] Measurement of High-Q^2 Neutral Current Deep Inelastic e-p Scattering Cross Sections with a Longitudinally Polarised Electron Beam at HERA (2009)
  • Author(s): ZEUS Collaboration, S.Chekanov, et al.
  • Journal Title: The European Physical Journal C62 Pages: 625-658
  • Peer Reviewed
• [Journal Article] Measurement of the charm fragmentation function in D^* photoproduction at HERA (2009)
  • Author(s): ZEUS Collaboration, S.Chekanov, et al.
  • Journal Title: JHEP 04 Pages: 82-82
  • Peer Reviewed
• [Journal Article] Measurement of Beauty Photoproduction using Decays into Muons in Dijet Events at HERA (2009)
  • Author(s): ZEUS Collaboration, S.Chekanov, et al.
  • Journal Title: JHEP 04 Pages: 133-133
  • Peer Reviewed
• [Journal Article] Exclusive Photoproduction of Upsilon Mesons at HERA (2009)
  • Author(s): ZEUS Collaboration, S.Chekanov, et al.
  • Journal Title: Physics Letters B680 Pages: 4-12
  • Peer Reviewed
• [Journal Article] Measurement of the Longitudinal Proton Structure Function at HERA (2009)
  • Author(s): ZEUS Collaboration, S.Chekanov, et al.
  • Journal Title: Physics Letters 1 B682 Pages: 8-22
  • Peer Reviewed
• [Journal Article] Scaled momentum distributions of charged particles in dijet photoproduction at HERA (2009)
  • Author(s): ZEUS Collaboration, S.Chekanov, et al.
  • Journal Title: JHEP 08 Pages: 77-77
  • Peer Reviewed
• [Journal Article] Multi-lepton production at high transverse momentum at HERA (2009)
  • Author(s): ZEUS Collaboration, S.Chekanov, et al.
  • Journal Title: Physics Letters B680 Pages: 13-23
  • Peer Reviewed
• [Journal Article] Measurement of J/psi helicity distributions in inelastic photoproduction at HERA (2009)
  • Author(s): ZEUS Collaboration, S.Chekanov, et al.
  • Journal Title: JHEP 12 Pages: 7-7
  • Peer Reviewed
• [Journal Article] Multi-Leptons with High Transverse Momentum at HERA (2009)
  • Author(s): H1, ZEUS Collaborations, F.D.Aaron, et al.
  • Journal Title: JHEP 10 Pages: 13-13
  • Peer Reviewed
• [Journal Article] Deep inelastic inclusive and diffractive scattering at Q^2 values from 25 to 320 GeV^2 with the ZEUS forward plug calorimeter (2008)
  • Author(s): ZEUS Collaboration, S.Chekanov, et al.
  • Journal Title: Nuclear Physics B 800 Pages: 1-76
  • Peer Reviewed
• [Journal Article] Diffractive photoproduction of dijets in ep collisions at HERA (2008)
  • Author(s): ZEUS Collaboration, S.Chekanov, et al.
  • Journal Title: The European Physical Journal C55 Pages: 177-191
  • Peer Reviewed
• [Journal Article] Mulit-jet cross sections in charged current e^+-p scattering at HERA (2008)
  • Author(s): ZEUS Collaboration, S.Chekanov, et al.
  • Journal Title: Physical Review D78 Pages: 32004-32004
  • Peer Reviewed
• [Journal Article] Energy dependence of the charged multiplicity in deep inelastic scattering at HERA (2008)
  • Author(s): ZEUS Collaboration, S.Chekanov, et al.
  • Journal Title: JHEP 06 Pages: 61-61
  • Peer Reviewed
• [Journal Article] Beauty photoproduction using decays into electrons at HERA (2008)
  • Author(s): ZEUS Collaboration, S.Chekanov, et al.
  • Journal Title: Physical Review D78 Pages: 72001-72001
  • Peer Reviewed
• [Journal Article] Inclusive K^0sK^0s resonance production in ep collisions at HERA (2008)
  • Author(s): ZEUS Collaboration, S.Chekanov, et al.
  • Journal Title: Physical Review Letters 101 Pages: 112003-112003
  • Peer Reviewed
• [Journal Article] Search for events with an isolated lepton and missing transverse momentum and a measurement of W production at HERA (2008)
  • Author(s): ZEUS Collaboration, S.Chekanov, et al.
  • Journal Title: Physics Letters 1 B672 Pages: 106-115
  • Peer Reviewed
• [Journal Article] Measurement of Azimuthal Asymmetries in Neutral Current Deep Inelastic Scattering at HERA (2007)
  • Author(s): ZEUS Collaboration, S. Chekanov, et. al.
  • Journal Title: The European Physical Journal C51 Pages: 289-299
  • Peer Reviewed
• [Journal Article] Measurement of K^0s, Lambda, Antilambda Production at HERA (2007)
  • Author(s): ZEUS Collaboration, S. Chekanov, et. al.
  • Journal Title: The European Physical Journal C51 Pages: 1-23
  • Peer Reviewed
• [Journal Article] Jet-radius dependence of inclusive-jet cross sections in deep inelastic scattering at HERA (2007)
  • Author(s): ZEUS Collaboration, S. Chekanov, et. al.
  • Journal Title: Physics Letters B 649 Pages: 12-24
  • Peer Reviewed
• [Journal Article] Leading Neutron Energy and P_T Distributions in Deep Inelastic Scattering and Photoproduction at HERA (2007)
  • Author(s): ZEUS Collaboration, S. Chekanov, et. al.
  • Journal Title: Nuclear Physics B 776 Pages: 1-37
  • Peer Reviewed
• [Journal Article] Measurement of D*± Meson Production in ep Scattering at low Q^2 (2007)
  • Author(s): ZEUS Collaboration, S. Chekanov, et. al.
  • Journal Title: Physics Letters B 649 Pages: 111-121
  • Peer Reviewed
• [Journal Article] Diffractive photoproduction of Dstar (2010) at HERA (2007)
  • Author(s): ZEUS Collaboration, S. Chekanov, et. al.
  • Journal Title: The European Physical Journal C 51 Pages: 301-315
  • Peer Reviewed
• [Journal Article] Measurement of D Mesons Production in Deep Inelastic Scattering at HERA (2007)
  • Author(s): ZEUS Collaboration, S. Chekanov, et. al.
  • Journal Title: JHEP 07 Pages: 74-74
  • Peer Reviewed
• [Journal Article] Multijet production at low xBj in deep inelastic scattering at HERA (2007)
  • Author(s): ZEUS Collaboration, S. Chekanov, et. al.
  • Journal Title: Nuclear Physics B 786 Pages: 152-180
  • Peer Reviewed
• [Journal Article] Bose-Einstein Correlations of Charged and Neutral Kaons in Deep Inelastic Scattering at HERA (2007)
  • Author(s): ZEUS Collaboration, S. Chekanov, et. al.
  • Journal Title: Physics Letters B 652 Pages: 1-12
  • Peer Reviewed
• [Journal Article] Measurement of (anti) deuteron and (anti) proton production in DIS at HERA (2007)
  • Author(s): ZEUS Collaboration, S. Chekanov, et. al.
  • Journal Title: Nuclear Physics B 786 Pages: 181-205
  • Peer Reviewed
• [Journal Article] High-ET Dijet Photoproduction at HERA (2007)
  • Author(s): ZEUS Collaboration, S. Chekanov, et. al.
  • Journal Title: Physical Review D 76 Pages: 72011-72011
  • Peer Reviewed
• [Journal Article] Forward-Jet Production in Deep Inelastic ep Scattering at HERA (2007)
  • Author(s): ZEUS Collaboration, S. Chekanov, et. al.
  • Journal Title: The European Physical Journal C 52 Pages: 515-530
  • Peer Reviewed
• [Journal Article] Three-and Four-Jet Final States in Photoproduction at HERA (2007)
  • Author(s): ZEUS Collaboration, S. Chekanov, et. al.
  • Journal Title: Nuclear Physics B 792 Pages: 1-47
  • Peer Reviewed
• [Journal Article] Exclusive rho^0 Production in Deep Inelastic Scattering at HERA (2007)
  • Author(s): ZEUS Collaboration, S. Chekanov, et. al.
  • Journal Title: PMC Physics A1 Pages: 6-6
  • Peer Reviewed
• [Journal Article] Dijet Production in Diffractive Deep Inelastic Scattering at HERA (2007)
  • Author(s): ZEUS Collaboration, S. Chekanov, et. al.
  • Journal Title: The European Physical Journal C 52 Pages: 813-832
  • Peer Reviewed
• [Journal Article] The design and performance of the ZEUS Micro Vertex detector. (2007)
  • Author(s): I. Brock, et. al.
  • Journal Title: Nuclear Instruments and Methods A 581 Pages: 656-686
  • Peer Reviewed
• [Journal Article] Event Shapes in Deep Inelastic Scattering at HERA (2007)
  • Author(s): ZEUS Collaboration, S. Chekanov et al.
  • Journal Title: Nuclear Physics B767 Pages: 1-28
• [Journal Article] Measurement of Neutral Current Cross Sections at High Bjorken-x with the ZEUS Detector at HERA (2007)
  • Author(s): ZEUS Collaboration, S. Chekanov et al.
  • Journal Title: The European Physical Journal C49 Pages: 523-544
• [Journal Article] Measurement of Prompt Photons with Associated Jets in Photoproduction at HERA (2007)
  • Author(s): ZEUS Collaboration, S. Chekanov et al.
  • Journal Title: The European Physical Journal C49 Pages: 511-522
• [Journal Article] Inclusive-Jet and Dijet Cross Sections in Deep Inelastic Scattering at HERA (2007)
  • Author(s): ZEUS Collaboration, S. Chekanov et al.
  • Journal Title: Nuclear Physics B765 Pages: 1-30
• [Journal Article] Search for stop production in R-parity-violating supersymmetry at HERA (2007)
  • Author(s): ZEUS Collaboration, S. Chekanov et al.
  • Journal Title: The European Physical Journal C50 Pages: 269-281
• [Journal Article] Measurement of open beauty production at HERA in the D^* muon final state (2007)
  • Author(s): ZEUS Collaboration, S. Chekanov et al.
  • Journal Title: The European Physical Journal C50 Pages: 299-314
• [Journal Article] Photo production of Events with Rapidity Gaps between Jets at HERA (2007)
  • Author(s): ZEUS Collaboration, S. Chekanov et al.
  • Journal Title: The European Physical Journal C50 Pages: 283-297
• [Journal Article] Measurement of High-Q^2 Deep Inelastic Scattering Cross Sections with a Longitudinally Polarised Positron Beam at HERA (2006)
  • Author(s): ZEUS Collaboration, S. Chekanov et al.
  • Journal Title: Physics Letters B637 Pages: 210-222
• [Journal Article] Forward Jet Production in Deep Inelastic ep Scattering and low-x Parton Dynamics at HERA (2006)
  • Author(s): ZEUS Collaboration, S Chekanov et al.
  • Journal Title: Physics Letters B632 Pages: 13-26
• [Journal Article] Study of Deep Inelastic Inclusive and Diffractive Scattering with the ZEUS Forward Plug Calorimeter (2005)
  • Author(s): ZEUS Collaboration, S Chekanov et al.
  • Journal Title: Nuclear Physics B713 Pages: 3-80
• [Journal Article] Search for Lepton-Flavor Violation at HERA (2005)
  • Author(s): ZEUS Collaboration, S Chekanov et al.
  • Journal Title: The European Physical Journal C44 Pages: 463-479
• [Journal Article] Multijet Production in Neutral Current Deep Inelastic Scattering at HERA and Determination of Alpha_s (2005)
  • Author(s): ZEUS Collaboration, S.Chekanov et al.
  • Journal Title: The European Physical Journal C44 Pages: 183-193
• [Journal Article] Exclusive Electroproduction of phi Mesons at HERA (2005)
  • Author(s): ZEUS Collaboration, S.Chekanov et al.
  • Journal Title: Nuclear Physics B718 Pages: 3-31
• [Journal Article] An NLO QCD Analysis of Inclusive Cross-Section and Jet-Production Data from the ZEUS Experiment (2005)
  • Author(s): ZEUS Collaboration, S.Chekanov et al.
  • Journal Title: The European Physical Journal C42 Pages: 1-16
• [Journal Article] Measurement of Inelastic J/psi Production in Deep Inelastic Scattering at HERA (2005)
  • Author(s): ZEUS Collaboration, S Chekanov et al.
  • Journal Title: The European Physical Journal C44 Pages: 13-25
• [Journal Article] Inclusive Jet Cross Sections and Dijet Correlations in D^* Photoproduction at HERA (2005)
  • Author(s): ZEUS Collaboration, S Chekanov et al.
  • Journal Title: Nuclear Physics B729 Pages: 492-525
• [Journal Article] Measurement of Charm Fragmentation Ratios and Fractions in Photoproduction at HERA (2005)
  • Author(s): ZEUS Collaboration, S Chekanov et al.
  • Journal Title: The European Physical Journal C44 Pages: 351-366
• [Journal Article] Search for Pentaquarks Decaying to Xi-pi in Deep Inelastic Scattering at HERA (2005)
  • Author(s): ZEUS Collaboration, S.Chekanov et al.
  • Journal Title: Physics Letters B610 Pages: 212-224
• [Journal Article] Measurement of beauty production in deep inelastic scattering at HERA (2004)
  • Author(s): ZEUS Collaboration, S.Chekanov et al.
  • Journal Title: Physics Letters B599 Pages: 173-189
• [Journal Article] Dissociation of virtual photons in events with a leading proton at HERA (2004)
  • Author(s): ZEUS Collaboration, S.Chekanov et al.
  • Journal Title: The European Physical Journal C38 Pages: 43-67
• [Journal Article] Search for a narrow charmed baryonic state decaying to D^<*±>_<p^±> in ep collisions at HRRA (2004)
  • Author(s): ZEUS Collaboration, S.Chekanov et al.
  • Journal Title: The European Physical Journal C38 Pages: 29-41
• [Presentation] Search for physics beyond SM at HERA (2008)
  • Author(s): 久世正広
  • Organizer: 16th International Conference On Supersymmetry And The Unification Of Fundamental Interactions (SUSY 08)
  • Place of Presentation: ソウル(韓国)
  • Year and Date: 2008-06-19
• [Presentation] Parton distributions : the impact of HERA (2008)
  • Author(s): 長野邦浩
  • Organizer: Hadron Collider Physics 2008
  • Place of Presentation: ガレーナ(英国)
  • Year and Date: 2008-05-28
• [Presentation] The EW fit and measurement of the CC cross section in e^+p data (2008)
  • Author(s): 長野邦浩
  • Organizer: XVI International Workshop on Deep Inelastic Scattering and Related Subjects (DIS2008)
  • Place of Presentation: ロンドン(英国)
  • Year and Date: 2008-04-08
• [Presentation] QCD results at HERA (2008)
  • Author(s): 山崎 祐司
  • Organizer: Aspen Winter Conference 2008
  • Place of Presentation: アスペン(米国)
  • Year and Date: 2008-01-14
• [Presentation] The ZEUS EW fit and measurement of the CC cross section in e+p data (2008)
  • Author(s): 長野邦浩
  • Organizer: XVI International Workshop on Deep Inelastic Scattering and Related Subjects (DIS2008)
  • Place of Presentation: London, UK
• [Presentation] QCD results at HERA (2008)
  • Author(s): 山崎祐司
  • Organizer: Aspen Winter Conference 2008
  • Place of Presentation: Aspen, USA
• [Presentation] HERAにおける陽子構造関数、重いクォーク生成の測定 (2007)
  • Author(s): 徳宿 克夫
  • Organizer: 日本物理学会 第62回年次大会
  • Place of Presentation: 札幌(日本)
  • Year and Date: 2007-09-23
• [Presentation] The overview and highlights of HERA (2007)
  • Author(s): 山田 作衛
  • Organizer: 日本物理学会
  • Place of Presentation: 札幌(日本)
  • Year and Date: 2007-09-21
• [Presentation] Heavy stable particle production at HERA (2007)
  • Author(s): 松本 崇弘
  • Organizer: 11th International Baryons Conference
  • Place of Presentation: ソウル(韓国)
  • Year and Date: 2007-06-14
• [Presentation] Electroweak results from ep collisions at HERA (2007)
  • Author(s): 長野 邦浩
  • Organizer: Hadron Collider Physics 2007
  • Place of Presentation: エルバ(イタリア)
  • Year and Date: 2007-05-21
• [Presentation] Dijet production in diffractive DIS and photoproduction at ZEUS (2007)
  • Author(s): 山崎 祐司
  • Organizer: 15th International Workshop on Deep Inelastic Scattering (DIS2007)
  • Place of Presentation: ミュンヘン(ドイツ)
  • Year and Date: 2007-04-17
• [Presentation] HERAにおける陽子構造関数、重いクォーク生成の測定「超高エネルギー宇宙線観測の新たな展開」 (2007)
  • Author(s): 徳宿克夫
  • Organizer: 2007年第62回日本物理学会年次大会
  • Place of Presentation: 北海道大学
• [Book] Deep Inelastic Scattering (DIS2006) Proceedings of the 14th International Workshop, Tsukuba, Japan (2007)
  • Author(s): M. Kuze, K. Nagano, K. Tokushuku
  • Publisher: World Scientific
• [Book] Deep Inelastic Scattering (Proceedings of the 14^<th> International Workshop Tsukuba Japan) (2007)
  • Author(s): M.Kuze, K.Nagano, K.Tokushuku (editors)
  • Total Pages: 967
  • Publisher: World Scientific
• [Remarks] 平成18年8月18日の日本経済新聞で、この研究が取り上げられた。記事は「欧州物理拠点を歩く」の第4回で、「独DESYでゼウス実験、陽子構造に迫る成果」という見出しのもとのシリーズ記事であった。
  • URL: http://research.kek.jp/group/zeus/kakenhi/