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PREPARATION STUDY FOR HADRON COLLIDER PHYSICS AT LHC

Research Project

Project/Area Number 09440103
Research Category

Grant-in-Aid for Scientific Research (B).

Allocation TypeSingle-year Grants
Section一般
Research Field 素粒子・核・宇宙線
Research InstitutionSHINSHU UNIVERSITY

Principal Investigator

TAKESHITA Tohru  SHINSHU U.PHYSICS, ASSOCIATE PROF., 理学部, 助教授 (70154995)

Co-Investigator(Kenkyū-buntansha) KAWAMURA Yoshihar  SHINSHU U.PHYSICS, ASSOCIATE PROF., 理学部, 助教授 (10224859)
TERASAWA Osamu  SHINSHU U.PHYSICS, ASSOCIATE PROF., 理学部, 助教授 (90020677)
BIYAJIMA Minoru  SHINSHU U.PHYSICS, PROF., 理学部, 教授 (20068258)
HASEGAWA Yoji  SHINSHU U.PHYSICS, ASSISTANT, 理学部, 助手 (70324225)
Project Period (FY) 1997 – 2000
Project Status Completed (Fiscal Year 2000)
Budget Amount *help
¥13,300,000 (Direct Cost: ¥13,300,000)
Fiscal Year 2000: ¥3,300,000 (Direct Cost: ¥3,300,000)
Fiscal Year 1999: ¥2,800,000 (Direct Cost: ¥2,800,000)
Fiscal Year 1998: ¥3,200,000 (Direct Cost: ¥3,200,000)
Fiscal Year 1997: ¥4,000,000 (Direct Cost: ¥4,000,000)
KeywordsHADRON COLLIDER / LHC / ELEMENTARY PARTICLE PHYSICS
Research Abstract

We have searched for possibilities to find any signals which indicate important final states at the high energy hadron collider, such as Higgs partiacels. To search for the Higgs particles, we have found that our endcap muon trigger system has sufficiently high efficiency. On the other hand, we have found the contribution from the back ground processes depend strongly on its modeling. Especially, in the mini-jet events, which is most popular at hadron collider experiments, our simulation according to ISAJET-simulato : shows 200 times more than that of DPMJET calculations. This test has been carried out at our interesting pseud-rapidity (η) region (say |η|>1) to catch muons. Similar tests should be done at other region. We could carried out those calculation with the system which we have constructed for this purpose last year without any major troubles. We have showed those results at the ATLAS-conferences. Our conclusion at this moment is to proceed this way and to compare the models on the QCD processes. We will include Japanese NLO calculations as well. We have also tried with newly developed software named Object Oriented software. This will be managed further in the real experiment, so that this work is important. At this time, we are checking our previous results and those given by the new one. It's Important to keep consistency with the old one but also reliability.

Report

(5 results)
  • 2000 Annual Research Report   Final Research Report Summary
  • 1999 Annual Research Report
  • 1998 Annual Research Report
  • 1997 Annual Research Report
  • Research Products

    (31 results)

All Other

All Publications (31 results)

  • [Publications] M.Biyajima and T.Mizoguchi: "Possible formulation for three-charged particles correlations in term of Coulomb wave functions."Physics Letters. B499. 245-252 (2001)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Publications] Y.Kawamura: "Gauge Symmetry Reduction from the Extra Space S^1Z_2"Progress of Theoretical Physics. 103. 613-619 (2000)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Publications] M.Biyajima and N.Suzuki: "Identical Particle Creations in Semi-Inclusive Events"Proceedings of the 8-th International symposium on Multiparticles Production, "Correlations and Fluctuations '98" at Matrahaza.. 98-107

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Publications] M.Biyajima and N.Suzuki: "Fractional Fokker-Plank Equation in Time Variables and Oscillation of Cumulatnt Moments."Proceedings of the 30-th International Symposium on Multiparticle Dynamics at Tihany..

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Publications] M.Biyajima and T.Mizoguchi: ""Possible formulations for three-charged particles correlations in terms of Coulomb wave functions""Physics Letters. B499. 245-252 (2001)

    • Related Report
      2000 Annual Research Report
  • [Publications] Y.Kawamura: "Gauge Symmetry Reduction from the Extra Space S^1/Z_2"Progress of Theoretical Physics. 103. 613-619 (2000)

    • Related Report
      2000 Annual Research Report
  • [Publications] M.Biyajima and N.Suzuki: "Indetical Particle Creations in Semi-Inclusive Events"Proceedings of the 8-th International Symposium on Multiparticle Production,"Correlations and Fluctuations'98" at Matrahaza. 98-107

    • Related Report
      2000 Annual Research Report
  • [Publications] M.Biyajima and N.Suzuki: "Fractional Fokker-Planck Equation in Time Variable and Oscillation of Cumulant Moments"Proceedings of the 30-th International Symposium on Multiparticle Dynamics at Tihany. (2000)

    • Related Report
      2000 Annual Research Report
  • [Publications] M. Biyajima et. al.: "Analysis of correlation data of pi+pi- pair in p + Ta reacion using Coulomb wave function including momentum resolution and the strong interacion effect"Physical Review. C59. 2209-2213 (1999)

    • Related Report
      1999 Annual Research Report
  • [Publications] M. Biyajima et. al.: "Multiplicity dependence of identical particle correlations in quantum optical approach"Physical Review. C60. 034903 1-(1-9) (1999)

    • Related Report
      1999 Annual Research Report
  • [Publications] M. Biyajima et. al.: "Identical particle correlation in semi-inculsive events"Correlations and fluctuations. 98. 98-107 (1999)

    • Related Report
      1999 Annual Research Report
  • [Publications] Y. Kawamura et. al.: "Model-independent analysis of soft masses in heterotic string models with anomalous U(1) symmetry"Physics Letters. B446. 228-237 (1999)

    • Related Report
      1999 Annual Research Report
  • [Publications] Y. Kawamura et. al.: "Generic Gravitational Corrections to Gauge Couplings in SUSY SU(5) GUTs"Physics Letters. B446. 111-117 (1999)

    • Related Report
      1999 Annual Research Report
  • [Publications] Y. Kawamura et. al.: "Phenomenological Constraints on SUSY SU(5) GUTs with Non-universal GauginoMasses"Physical Review. D61. 035001 1-(1-8) (2000)

    • Related Report
      1999 Annual Research Report
  • [Publications] Y. Kawamura et. al.: "Bottom-up Approach to B parameter in Minimal Supersymmetric Standard Model"International Journal of Modern Physics. A15. 81-103 (2000)

    • Related Report
      1999 Annual Research Report
  • [Publications] Y.Kawamura et.al..: "Probing u-term generation mechanism in string models" Physics Letters. B419. 157-166 (1998)

    • Related Report
      1998 Annual Research Report
  • [Publications] Y.Kawamura et.al..: "Sum-rules in the supersymmetric spectrum of the minimal supersymmetric standard model" Physics Letters. B432. 108-113 (1998)

    • Related Report
      1998 Annual Research Report
  • [Publications] Y.Kawamura et.al..: "Relic Abundance of Neutralinos in Heterotic String Theory : Weak Coupling vs.Strong Coupling" Journal of High Energy Physics. 6. 8 (1998)

    • Related Report
      1998 Annual Research Report
  • [Publications] Y.Kawamura et.al..: "Constraints on Supersymmetric SO(10)GUTs with Sum Rules among Soft Masses" Physics Letters. B436. 108-116 (1998)

    • Related Report
      1998 Annual Research Report
  • [Publications] M.Biyajima et.al..: "Isotopic spin effect in two-pion and three-pion Bose-Einstein correlations" Physical Review. C58. 2316-2320 (1998)

    • Related Report
      1998 Annual Research Report
  • [Publications] M.Biyajima et.al..: "Analysis of Bose-Einstein correlations in e^+e^-→W^+W^- events including final state interactions" Physical Review. D58. 114013-1-4 (1998)

    • Related Report
      1998 Annual Research Report
  • [Publications] M.Biyajima et.al..: "Cumulant moments in hadron-nucleus collisiona and stochastic processes" Physical Review. C58. 1720-1726 (1998)

    • Related Report
      1998 Annual Research Report
  • [Publications] M.Biyajima et.al..: "Analyses of multiplicity distributions of e^+e^-ande^-p collisions by means of modified negative binomial distribution and Laguerre type distrib ution : Interrelation od solutions in stochastic processes" Phsical Review. D58. 037505-1-4 (1998)

    • Related Report
      1998 Annual Research Report
  • [Publications] Y.Kawamura et.al..: "Specific scalar mass relations in SU(3)xSU(2)xU(1)orbifold model." Physics Letters. B400. 284-294 (1997)

    • Related Report
      1997 Annual Research Report
  • [Publications] Y.Kawamura et.al..: "Soft scalar-mass sum rule in gauge-Yukawa unified models and its superstring interpretation." Physics Letters. B405. 64-70 (1997)

    • Related Report
      1997 Annual Research Report
  • [Publications] Y.Kawamura and T.Kobayashi: "Generic formula of soft scalar masses on string models." Physical Review. D56. 3844-3859 (1997)

    • Related Report
      1997 Annual Research Report
  • [Publications] M.Biyajima et.al..: "Analysis of multiplicity distributions by means of the modified negative binomial distribution and its KNO scaling functions." Prog.Theor.Phys.98. 1289-1298 (1997)

    • Related Report
      1997 Annual Research Report
  • [Publications] M.Biyajima et.al..: "Generating functional approach to Bose-Einstein correlations." Physical Review. C56. 2736-2746 (1997)

    • Related Report
      1997 Annual Research Report
  • [Publications] M.Biyajima et.al..: "Comparative analysis of multiplicity distributions in inelastic proceses for different colliding particles and nuclei." Physics Letters. B403. 149-154 (1997)

    • Related Report
      1997 Annual Research Report
  • [Publications] M.Biyajima et.al..: "Quasiscaling in the analysis of the yield ratioπ-/π+:mathematical structure and estimation of source size." Pysical Review. C55. 2615-2620 (1997)

    • Related Report
      1997 Annual Research Report
  • [Publications] M.Biyajima et.al..: "Wavelet analysis of cosmic rajets." Nulcear Physics. 52B. 246-248 (1997)

    • Related Report
      1997 Annual Research Report

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Published: 1997-04-01   Modified: 2016-04-21  

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