The Development of the Polarized Target of COMPASS Spectrometer for the Measurement of Drell-Yan Reaction

• Project/Area Number: 20540299
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Single-year Grants
• Section: 一般
• Research Field: Particle/Nuclear/Cosmic ray/Astro physics
• Research Institution: Chubu University
• Principal Investigator: HORIKAWA Naoaki Chubu University, 総合学術研究院, 客員教授 (70022697)
• Co-Investigator(Kenkyū-buntansha): 鈴木 肇 中部大学, 工学部, 准教授 (20260044)
• Project Period (FY): 2008 – 2010
• Project Status: Completed (Fiscal Year 2010)
• Budget Amount: ¥4,550,000 (Direct Cost: ¥3,500,000、Indirect Cost: ¥1,050,000); Fiscal Year 2010: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000); Fiscal Year 2009: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000); Fiscal Year 2008: ¥2,470,000 (Direct Cost: ¥1,900,000、Indirect Cost: ¥570,000)
• Keywords: 核子スピン / Drell-Yan / スピン偏極標的 / クォークスピン / COMPASS実験 / ドレル・ヤン / COMPASS / Drell-Yan実験 / 偏極標的 / 核子のスピン構造

Research Abstract

We performed the preliminary experiments at CERN for the Drell-Yan experiment to reveal the contribution of the quark-gluon angular momentum to the nucleon spin. The preliminary experiments consist of two parts. One is to check the decrease of the target polarization by heat caused by beam. Another is to check the background events using pion beam. Both tests assured the Drell-Yan experiment without decreasing the target polarization and with less background using the shorter length of the target and hadron absorber. We made the target holder which will be used for the Drell-Yan experiment. Looking those preliminary results, CERN decided to share the measuring time to COMPASS for Drell-Yan experiment during2013-2015.

Research Products

• [Journal Article] Quark Helicity Distributions from Longitudinal Spin Asymmetries in Muon-Proton and Muon-Deuteron Scattering (2010)
  • Author(s): M.G.Alekseev, N.Doshita, T.Hasegawa, N.Horikawa, S.Ishimoto, T.Iwata, K.Kondo, T.Matsuda, T.Michigami, other
  • Journal Title: PLB 693 Pages: 227-235
  • Peer Reviewed
• [Journal Article] Azimuthal asymmetries of charged hadrons produced by high energy muons off longitudinally polarized deuterons (2010)
  • Author(s): M.G.Alekseev, N.Doshita, T.Hasegawa, N.Horikawa, S.Ishimoto, T.Iwata, K.Kondo, T.Matsuda, T.Michigami, other
  • Journal Title: EPJC 70 Pages: 39-49
  • Peer Reviewed
• [Journal Article] Measurement of the Collins and Sivers asymmetries on transversely polarised protons (2010)
  • Author(s): M.G.Alekseev, N.Doshita, T.Hasegawa, N.Horikawa, S.Ishimoto, T.Iwata, K.Kondo, T.Matsuda, T.Michigami, other
  • Journal Title: PLB 692 Pages: 240-246
  • Peer Reviewed
• [Journal Article] The spin-dependent structure function of the proton g1p and a Test of the Bjorken Sum Rule (2010)
  • Author(s): M.G.Alekseev, N.Doshita, T.Hasegawa, N.Horikawa, S.Ishimoto, T.Iwata, K.Kondo, T.Matsuda, T.Michigami, other
  • Journal Title: PLB 690 Pages: 466-472
  • Peer Reviewed
• [Journal Article] Observation of a JPC=1-+ exotic resonance in diffractive dissociation of 190 GeV/c π^- into π^-π^-π^+ (2010)
  • Author(s): M.G.Alekseev, N.Doshita, T.Hasegawa, N.Horikawa, S.Ishimoto, T.Iwata, K.Kondo, T.Matsuda, T.Michigami, other
  • Journal Title: PRL 104 Pages: 241803-241803
  • Peer Reviewed
• [Journal Article] Azimuthal asymmetries of charged hadrons produced by high energy muons off longitudinally polarized deuterons (2010)
  • Author(s): N.Horikawa, 他 COMPASS members
  • Journal Title: EPJC Volume: 70 Pages: 39-49
  • Peer Reviewed
• [Journal Article] The Spin-dependent Structure Function of the Proton gp1 and a Test of the Bjorken Sum Rule (2010)
  • Author(s): N.Horikawa, 他 COMPASS members
  • Journal Title: Phys.Lett.B Volume: 693 Pages: 466-472
  • Peer Reviewed
• [Journal Article] Measurement of the Collins and Sivers asymmetries on transversely polarised protons (2010)
  • Author(s): N.Horikawa, 他 COMPASS members
  • Journal Title: Phys.Lett.B Volume: 692 Pages: 240-246
  • Peer Reviewed
• [Journal Article] Observation of a JPC=1-+exotic resonance in diffractive dissociation of 190 GeV/c π- into π-π-π+ (2010)
  • Author(s): N.Horikawa, 他 COMPASS members
  • Journal Title: Phys.Rev.Lett. Volume: 104 Pages: 241803-241803
  • Peer Reviewed
• [Journal Article] Measurement of the Longitudinal Spin Transfer to Λ and Λ-bar Hyperons in Polarized Muon DIS (2009)
  • Author(s): M.G.Alekseev, N.Doshita, T.Hasegawa, N.Horikawa, S.Ishimoto, T.Iwata, K.Kondo, T.Matsuda, T.Michigami, other
  • Journal Title: EPJC 64 Pages: 171-179
  • Peer Reviewed
• [Journal Article] Flavour Separation of Helicity Distributions from Deep Inelastic Muon-Deuteron Scattering (2009)
  • Author(s): M.G.Alekseev, N.Doshita, T.Hasegawa, N.Horikawa, S.Ishimoto, T.Iwata, K.Kondo, T.Matsuda, T.Michigami, other
  • Journal Title: PLB 680 Pages: 217-224
  • Peer Reviewed
• [Journal Article] Gluon Polarisation in the Nucleon and Longitudinal Double Spin Asymmetries from Open Charm Muoproduction (2009)
  • Author(s): M.G.Alekseev, N.Doshita, T.Hasegawa, N.Horikawa, S.Ishimoto, T.Iwata, K.Kondo, T.Matsuda, T.Michigami, other
  • Journal Title: PLB 676 Pages: 31-38
  • Peer Reviewed
• [Journal Article] Collins and Sivers asymmetries for pions and kaons in muon-deuteron DIS (2009)
  • Author(s): M.G.Alekseev, N.Doshita, T.Hasegawa, N.Horikawa, S.Horikawa, S.Ishimoto, T.Iwata, K.Kondo, T.Matsuda, other
  • Journal Title: PLB 673 Pages: 127-135
  • Peer Reviewed
• [Journal Article] Collins and Sivers iasymmetries for pions and kaons in muon-deuteron DIS (2009)
  • Author(s): 堀川直顕, 他COMPASSグループ
  • Journal Title: Phys.Lett.673(2009)127-135 673 Pages: 127-135
  • Peer Reviewed
• [Journal Article] Gluon polarisation in the nucleon and longitudinal double spin asymmetries from open charm muoproduction (2009)
  • Author(s): 堀川直顕, 他COMPASSグループ
  • Journal Title: Phys.Lett. B676 Pages: 31-38
  • Peer Reviewed
• [Journal Article] Flavour separation of helicity distributions from deep inelastic muon-deuteron scattering (2009)
  • Author(s): 堀川直顕, 他COMPASSグループ
  • Journal Title: Phys.Lett. B680 Pages: 217-224
  • Peer Reviewed
• [Journal Article] Measurement of the Longitudinal Spin Transfer to Lambda and Anti-Lambda Hyperons in Polarised Muon DIS (2009)
  • Author(s): 堀川直顕, 他COMPASSグループ
  • Journal Title: Eur.Phys.J C64 Pages: 171-179
  • Peer Reviewed
• [Journal Article] Collins and Sivers iasymmetries for pions and kaons in muon-deuteron DIS (2009)
  • Author(s): M. Alekseev
  • Journal Title: Physics Letters B 673 Pages: 127-135
  • Peer Reviewed
• [Journal Article] The COMPASS polarized target in 2006 and 2007 (2008)
  • Author(s): M.G.Alekseev, N.Doshita, T.Hasegawa, N.Horikawa, S.Ishimoto, T.Iwata, K.Kondo, T.Matsuda, T.Michigami, other
  • Journal Title: AIP Conf.Proc. 980 Pages: 307-311
  • Peer Reviewed
• [Journal Article] The Polarised Valence Quark Distribution from semi-inclusive DIS (2008)
  • Author(s): M.G.Alekseev, N.Doshita, T.Hasegawa, N.Horikawa, S.Horikawa, S.Ishimoto, T.Iwata, K.Kondo, T.Matsuda, other
  • Journal Title: PLB 660
  • Peer Reviewed
• [Journal Article] The Polarised Valence Quark Distribution from semi-inclusive DIS (2008)
  • Author(s): M. Alekseev
  • Journal Title: Physics Letters B 660 Pages: 458-465
  • Peer Reviewed
• [Presentation] COMPASS横偏極陽子標的実験での最新成果 (2011)
  • Author(s): 岩田高広
  • Organizer: 日本物理学会
  • Place of Presentation: 新潟大学
  • Year and Date: 2011-03-28
• [Presentation] COMPASSIIにおける偏極ドレル・ヤンプログラムの準備状況 (2011)
  • Author(s): 堂下典弘
  • Organizer: 日本物理学会
  • Place of Presentation: 新潟大学
  • Year and Date: 2011-03-28
• [Presentation] COMPASS偏極標的マイクロ波系のための耐高出力減衰器の開発2 (2011)
  • Author(s): 松田洋樹
  • Organizer: 日本物理学会
  • Place of Presentation: 新潟大学(震災により中止、発表は成立)
  • Year and Date: 2011-03-25
• [Presentation] COMPASS横偏極陽子標的実験での最新成果 (2011)
  • Author(s): 岩田高広
  • Organizer: 日本物理学会
  • Place of Presentation: 新潟大学(震災により中止、発表は成立)
  • Year and Date: 2011-03-25
• [Presentation] COMPASSIIにおける偏極ドレル・ヤンプログラムの準備状況 (2011)
  • Author(s): 堂下典弘
  • Organizer: 日本物理学会
  • Place of Presentation: 新潟大学(震災により中止、発表は成立)
  • Year and Date: 2011-03-25
• [Presentation] COMPASS偏極標的マイクロ波系のための耐高出力減衰器の開発2 (2011)
  • Author(s): 松田洋樹
  • Organizer: 日本物理学会
  • Place of Presentation: 新潟大学
  • Year and Date: 2011-03-25
• [Presentation] COMPASSでのミューオン核子散乱でのPhi生成に関する2重スピン非対称度の解析 (2010)
  • Author(s): 道上琢磨
  • Organizer: 日本物理学会
  • Place of Presentation: 九州工業大学
  • Year and Date: 2010-09-11
• [Presentation] COMPASSでの偏極ドレルヤン測定のためのビームテストの結果 (2010)
  • Author(s): 堂下典弘
  • Organizer: 日本物理学会
  • Place of Presentation: 岡山大学
  • Year and Date: 2010-03-26
• [Presentation] COMPASSにおける陽子に対する偏極構造関数g1pの測定 (2010)
  • Author(s): 松田達郎
  • Organizer: 日本物理学会
  • Place of Presentation: 岡山大学
  • Year and Date: 2010-03-26
• [Presentation] 2010-2011ランのためのCOMPASS偏極標的アップグレード (2010)
  • Author(s): 近藤薫
  • Organizer: 日本物理学会
  • Place of Presentation: 岡山大学
  • Year and Date: 2010-03-26
• [Presentation] COMPASSでの偏極ドレルヤン測定のためのビームテストの結果 (2010)
  • Author(s): 堂下典弘
  • Organizer: 日本物理学会2010年春季大会
  • Place of Presentation: 岡山大学(岡山県)
  • Year and Date: 2010-03-26
• [Presentation] COMPASSにおける陽子に対する偏極構造関数g_1^pの測定 (2010)
  • Author(s): 松田達郎
  • Organizer: 日本物理学会2010年春季大会
  • Place of Presentation: 岡山大学(岡山県)
  • Year and Date: 2010-03-26
• [Presentation] 2010-2011ランのためのCOMPASS偏極標的アップグレード (2010)
  • Author(s): 近藤薫
  • Organizer: 日本物理学会2010年春季大会
  • Place of Presentation: 岡山大学(岡山県)
  • Year and Date: 2010-03-26
• [Presentation] COMPASSでのSIDIS反応による偏極クォーク分布の研究 (2009)
  • Author(s): 松田達郎
  • Organizer: 日本物理学会
  • Place of Presentation: 立教大学
  • Year and Date: 2009-03-30
• [Presentation] COMPASSでの核子内グルーオン偏極の研究 (2009)
  • Author(s): 岩田高広
  • Organizer: 日本物理学会
  • Place of Presentation: 立教大学
  • Year and Date: 2009-03-30
• [Presentation] COMPAS実験におけるアンモニア標的の偏極度解析 (2008)
  • Author(s): 道上琢磨
  • Organizer: 日本物理学会
  • Place of Presentation: 山形大学
  • Year and Date: 2008-09-23
• [Presentation] COMPASS偏極標的2007-2008 (2008)
  • Author(s): 近藤薫
  • Organizer: 日本物理学会
  • Place of Presentation: 山形大学
  • Year and Date: 2008-09-23
• [Presentation] 縦偏極した偏極標的を用いたCOMPASSの最近の結果 (2008)
  • Author(s): 堂下典弘
  • Organizer: 日本物理学会
  • Place of Presentation: 山形大学
  • Year and Date: 2008-09-23
• [Presentation] 横偏極標的を用いたCOMPASSの最近の結果 (2008)
  • Author(s): 松田達郎
  • Organizer: 日本物理学会
  • Place of Presentation: 山形大学
  • Year and Date: 2008-09-23
• [Presentation] COMPASS実験におけるアンモニア標的の核偏極度解析 (2008)
  • Author(s): 道上琢磨
  • Organizer: 日本物理学会
  • Place of Presentation: 山形大学(23pSD会場)
  • Year and Date: 2008-09-23
• [Presentation] COMPASS偏極標的2002-2007 (2008)
  • Author(s): 近藤 薫
  • Organizer: 日本物理学会
  • Place of Presentation: 山形大学(23pSD会場)
  • Year and Date: 2008-09-23
• [Presentation] 縦偏極した偏極標的を用いたCOMPASSの最近の結果 (2008)
  • Author(s): 堂下典弘
  • Organizer: 日本物理学会
  • Place of Presentation: 山形大学(23pSD会場)
  • Year and Date: 2008-09-23
• [Presentation] 横偏極標的を用いたCOMPASS実験の最近の結果 (2008)
  • Author(s): 松田達郎
  • Organizer: 日本物理学会
  • Place of Presentation: 山形大学(23pSD会場)
  • Year and Date: 2008-09-23
• [Book] 物質の究極の姿はどのようにして確かめられるか? (2009)
  • Author(s): 堀川直顕
  • Total Pages: 69
  • Publisher: 自費出版
• [Remarks]
  • URL: http://wwwcompass.cern.ch/