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RQMD vs data for p ± , π ± and K ± at θ lab =97 0 in p+A at E=10.14 GeV

RQMD vs data for p ± , π ± and K ± at θ lab =97 0 in p+A at E=10.14 GeV. Sergey Kiselev, ITEP Kinematical limits Input info RQMD: multiplicities RQMD: angle distributions Spectra: RQMD vs data. Kinematical limits. Input info.

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RQMD vs data for p ± , π ± and K ± at θ lab =97 0 in p+A at E=10.14 GeV

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  1. RQMD vs data for p±, π± and K± at θlab=970 in p+A at E=10.14 GeV Sergey Kiselev, ITEP Kinematical limits Input info RQMD: multiplicities RQMD: angle distributions Spectra: RQMD vs data ITEP meeting S.Kiselev

  2. Kinematical limits ITEP meeting S.Kiselev

  3. Input info • Data from Yad.Fiz. 57 (1994) 1452 p+A A=Be,Al,Cu,Ta θlab=970p±, π±, K± tables for f=A-1 E d3σ/d3p vs p absolute normalization error ~ 25% • RQMD (Relativistic Quantum Molecular Dynamics) Phys. Rev. C52 (1995) 3291. RQMD produces hadrons through the excitation of baryonic and mesonic resonances. Heavy resonances (more than 2 GeV for baryons and more than 1 GeV for mesons) are treated in the string picture following the Lund model and all particles are allowed to reinteract (baryon-baryon, baryon-meson, and meson-meson). The model provides a complete time-dependent description of the evolution of each event. The probabilities for excitation of specific channels are governed by experimental cross-sections to the extent possible. The formation points of hadrons are taken from the properties of resonance decay and string fragmentation. ITEP meeting S.Kiselev

  4. Input info RQMD min. bias events (b<R=1.1 A1/3) Analysis θlab=970 ± 70 f=A-1 E σinΔN/(p2Δ p ΔΩ Nevents with partic.) σin = 2πR2 ITEP meeting S.Kiselev

  5. RQMD: multiplicities average multiplicities ITEP meeting S.Kiselev

  6. RQMD: angle distributions ITEP meeting S.Kiselev

  7. Spectra for Be: RQMD vs data ITEP meeting S.Kiselev

  8. Spectra for Al: RQMD vs data ITEP meeting S.Kiselev

  9. Spectra for Cu: RQMD vs data ITEP meeting S.Kiselev

  10. Spectra for Ta: RQMD vs data ITEP meeting S.Kiselev

  11. Spectra: slopes fit by ~ exp(-p/p0) in the overlap region p0 for data / RQMD slopes are the same ITEP meeting S.Kiselev

  12. Conclusion One can hope the RQMD code can be used for 6 GeV One can think on optimal set up position to study π0 out of the1+3N kinematical limit RQMD reasonably reproduces the p+A data at 10 GeV ITEP meeting S.Kiselev

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