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LHCf　Experiment for the TA

LHCf　Experiment for the TA. --calibration of M.C code--. D.A. Faus(1), M. Haguenauer(2), K. Kasahara (3), K. Masuda(4), Y. Matsubara(4), Y. Muraki(4), T. Sako(4), T. Tamura(5), S. Torii(5), W.C. Turner(6), J. Velasco(1) ( The LHCf collaboration (tentative) ). Why LHC ? What we can measure

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LHCf　Experiment for the TA

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  1. LHCf　Experiment for the TA --calibration of M.C code-- D.A. Faus(1), M. Haguenauer(2), K. Kasahara(3), K. Masuda(4), Y. Matsubara(4), Y. Muraki(4), T. Sako(4), T. Tamura(5), S. Torii(5), W.C. Turner(6), J. Velasco(1) ( The LHCf collaboration (tentative) ) • Why LHC ? • What we can measure • Importance of measurement • Detector • Expected performance • Bonus • Conclusions 2004/02/26: ICRR

  2. LHC 2007. 7 TeV x 7 TeV⇒1017 eVLab.Energy • No knowledge of particle production spectrum at high energies ( esp. at largeFeynmannx ). Exception: UA7 exp. at 200TeV

  3. General Structure of LHC Beam collision point Point 140m away

  4. Beam center finding by 40k events

  5. Bonus: LPM effect

  6. Conclusions • X distribution of photons at x>0.05. • Inelasticity information from neutron spectrum • ⇒Calibration of M.C code • Bonus. LPM effect. • If everything goes well, only ~a day measurement with the smallest detector in the largest accelerator gives us valuable information.

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