Investigation of quarkonium production mechanisms in hadron-hadron collisions

• Project/Area Number: 22540305
• 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: University of Tsukuba
• Principal Investigator: UKEGAWA Fumihiko 筑波大学, 数理物質系, 教授 (10312795)
• Project Period (FY): 2010 – 2012
• Project Status: Completed (Fiscal Year 2012)
• Budget Amount: ¥4,160,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥960,000); Fiscal Year 2012: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000); Fiscal Year 2011: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000); Fiscal Year 2010: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000)
• Keywords: 素粒子(実験) / ハドロン・ハドロン衝突 / クォークオニウム生成 / J/psi / Upsilon / 素粒子（実験） / 陽子・（反）陽子衝突 / 重いクォーク生成 / クオークオニウム / 素粒子実験 / ハドロン衝突実験 / 強い相互作用 / テバトロン / LHC / J/ψ / ウプシロン / J/Ψ

Research Abstract

Production mechanisms of heavy quarkonia in high-energy hadron-hadron collisions have been studied. Data obtained with the CDF experiment at the Tevatron proton-antiproton collider at Fermilab, and the ATLAS experiment at the Large Hadron Collider at CERN, are analyzed to study the production properties of J/psi and Upsilon particles, including cross sections and spin alignment, providing new insight into their production mechanisms.

Research Products

• [Journal Article] Measurement of Upsilon production in 7 TeV p p collisions at ATLAS (2013)
  • Author(s): G. Aad, F. Ukegawa et al.
  • Journal Title: Phys. Rev. Volume: D 87 Issue: 5 Pages: 52004-52004
  • DOI: 10.1103/physrevd.87.052004
  • Peer Reviewed
• [Journal Article] Observation of a new chi_b state in radiative transitions to Upsilon(1S) and Upsilon(2S) at ATLAS (2012)
  • Author(s): G. Aad, F. Ukegawa et al.
  • Journal Title: Phys. Rev. Lett. Volume: 108 Issue: 15 Pages: 152001-152001
  • DOI: 10.1103/physrevlett.108.152001
  • Peer Reviewed
• [Journal Article] Measurements of angular distributions of muons from Upsilon meson decays in p p-bar collisions at sqrt(s) = 1.96 TeV (2012)
  • Author(s): T. Aaltonen, F. Ukegawa et al.
  • Journal Title: Physical Review Letters Volume: 108 Issue: 15 Pages: 151802-151802
  • DOI: 10.1103/physrevlett.108.151802
  • Peer Reviewed
• [Journal Article] Measurement of the b-hadron production cross section using decays to D*+ mu- X final states in pp collisions at sqrt{s} = 7 TeV with the ATLAS detector (2012)
  • Author(s): ATLAS Collaboration, G. Aad et al.
  • Journal Title: Nuclear Physics B Volume: 864 Issue: 3 Pages: 341-381
  • DOI: 10.1016/j.nuclphysb.2012.07.009
  • Peer Reviewed
• [Journal Article] Measurement of the Upsilon(1S) production cross-section in p p collisions at sqrt(s) = 7 TeV in ATLAS (2011)
  • Author(s): G. Aad, F. Ukegawa et al.
  • Journal Title: Phys. Lett. Volume: B 705 Issue: 1-2 Pages: 9-27
  • DOI: 10.1016/j.physletb.2011.09.092
  • Peer Reviewed
• [Journal Article] Measurement of the differential cross-sections of inclusive, prompt and non-prompt J/psi production in proton-proton collisions at sqrt(s) = 7 TeV (2011)
  • Author(s): G. Aad, F. Ukegawa et al.
  • Journal Title: Nucl. Phys. Volume: B 850 Issue: 3 Pages: 387-444
  • DOI: 10.1016/j.nuclphysb.2011.05.015
  • Peer Reviewed
• [Journal Article] Measurement of b Hadron Lifetimes in Exclusive Decays Containing a J/psi in p anti-p Collisions at sqrt{s}=1.96 TeV (2011)
  • Author(s): T.Aaltonen. F.Ukegawa, et al.
  • Journal Title: Physical Review Letters Volume: 106
  • Peer Reviewed
• [Journal Article] A first measurement of the differential cross section for the J/psi-> mu+ mu- resonance and the non-prompt to prompt J/psi cross section ratiowith pp collisions at sqrt{s}=7 TeV (2010)
  • Author(s): ATLAS Collaboration
  • Journal Title: ATLAS-CONF-2010-062
• [Presentation] Higgs Searches at the Tevatron (2012)
  • Author(s): Koji Sato
  • Organizer: Standard Model @ LHC 2012
  • Place of Presentation: Copenhagen, Denmark
  • Invited
• [Presentation] CDF results on the search for rare Bd, Bs --> mu+ mu- and Xs mu+ mu- decays (2012)
  • Author(s): Hideki Miyake
  • Organizer: ICHEP 2012, 36th International Conference on High Energy Physics
  • Place of Presentation: Melbourne, Australia
  • Invited
• [Presentation] Electroweak and top results from the Tevatron (2011)
  • Author(s): Junji Naganoma
  • Organizer: XLI International Symposium on Multiparticle Dynamics (ISMD 2011)
  • Place of Presentation: みやじま杜の宿(広島県廿日市市宮島町)(招待講演)
  • Year and Date: 2011-09-29
• [Presentation] LHC-ATLAS実験におけるW+jets事象の生成断面積測定 (2011)
  • Author(s): 林隆康
  • Organizer: 日本物理学会2011年秋季大会
  • Place of Presentation: 弘前大学文京町キャンパス(青森県弘前市)
  • Year and Date: 2011-09-19
• [Presentation] LHC-ATLAS実験におけるW+jets事象の研究 (2010)
  • Author(s): 林隆康
  • Organizer: 日本物理学会
  • Place of Presentation: 九州工業大学