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Study the high-energy (GeV~TeV) hadron-hadron, hadron-nucleus and nucleus-nucleus interactions

Abstract

The purpose of the project is to study the high-energy (GeV~TeV) hadron-hadron, hadron-nucleus and nucleus-nucleus interactions, in order to clarify the elementary structure of the hadrons and the mechanisms of reactions involving hadronic matter formed in these collisions. With the simultaneous analysis of these systems, we intend to reach a unified comprehension of hadronic interactions. This analysis faces with the problem of describing strongly-interacting many-body systems controlled by a relativistic dynamics, to which no fundamental and tractable theory is available yet. Within this context, the elaboration of phenomenological models is crucial as an intermediate step toward this direction. Specifically, problems treated in the project are i) description of (total, elastic, inelastic and diffrative) cross sections and inclusive spectra of particles in multiple production; ii) correlations among produced particles, interferometry, multiplicity distributions and fluctuations; iii) production and suppression of strangeness and charm in hadronic matter; iv) exotic events (Centauros, Chirons, etc.); v) description of the dynamics of sub-nuclear and sub-hadronic degrees of freedom; vi) models of hadrons (Skyrmions and bags); vii) LattQCD; etc. Among the different working methods to analyze experimental data, we have statistical and hydrodynamic models, string models, eikonal models, intranuclear cascades (having the parameters of these models to be understood in terms of non-perturbative QCD), non-relativistic QCD, QCD sum rules, methods of many-body problems applied to effective fields, lattice Monte Carlo algorithms, etc. (AU)

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Scientific publications (21)
(References retrieved automatically from Web of Science and SciELO through information on FAPESP grants and their corresponding numbers as mentioned in the publications by the authors)
CSÖRG{\H{O}}‚ T.; NAGY‚ MI; CSANÁD‚ M. New family of simple solutions of relativistic perfect fluid hydrodynamics. Physics Letters B, v. 663, n. 4, p. 306-311, 2008.
NAGY‚ MI; CSÖRG{\H{O}}‚ T.; CSANÁD‚ M. Detailed description of accelerating‚ simple solutions of relativistic perfect fluid hydrodynamics. Physical Review C, v. 77, n. 2, p. 024908, 2008.
P. C. BEGGIO; Y. HAMA. A new scheme for calculation of the multiplicity distributions in hadronic interactions. Brazilian Journal of Physics, v. 37, n. 3b, p. -, Set. 2007.
PADULA‚ S.S.; KREIN‚ G.; CSÖRG{\H{O}}‚ T.; HAMA‚ Y.; PANDA‚ PK. Back-to-back correlations for finite expanding fireballs. Physical Review C, v. 73, n. 4, p. 044906, 2006.
Y. HAMA; T. KODAMA; O. SOCOLOWSKI JR. Topics on hydrodynamic model of nucleus-nucleus collisions. Brazilian Journal of Physics, v. 35, n. 1, p. 24-51, Mar. 2005.
MENON, M. J.; ÁVILA, REGINA FONSECA. Critical analysis of derivative dispersion relations at high energies. Nuclear Physics A, v. 744, p. 249-272, Nov. 2004.
A. F. MARTINI; M. J. MENON; J. MONTANHA. Correlations between total cross sections and slopes. Brazilian Journal of Physics, v. 34, n. 1a, p. 263-267, Mar. 2004.
C.E. AGUIAR; R. ANDRADE; F. GRASSI; Y. HAMA; T. KODAMA; T. OSADA; O. SOCOLOWSKI JR. Comparison between classification using impact parameter and using number of participants in relativistic nuclear collisions. Brazilian Journal of Physics, v. 34, n. 1a, p. 319-321, Mar. 2004.
E. G. S. LUNA; M. J. MENON; J. MONTANHA. Extensions of the extrema bounds for the pomeron intercept to meson-proton, gamma-proton and gamma-gamma scattering. Brazilian Journal of Physics, v. 34, n. 1a, p. 268-271, Mar. 2004.
M. GAZDZICKI; M. I. GORENSTEIN; F. GRASSI; Y. HAMA; T. KODAMA; O. SOCOLOWSKI JR. Incident-energy dependence of the effective temperature in heavy-ion collisions. Brazilian Journal of Physics, v. 34, n. 1a, p. 322-325, Mar. 2004.
LUNA‚ EGS; MENON‚ MJ; MONTANHA‚ J. An analysis on extrema and constrained bounds for the soft pomeron intercept. Nuclear Physics A, v. 745, n. 1, p. 104-120, 2004.
SOCOLOWSKI‚ O.; GRASSI‚ F.; HAMA‚ Y.; KODAMA‚ T. Fluctuations of the initial conditions and the continuous emission in the hydrodynamical description of two-pion interferometry. Physical Review Letters, v. 93, n. 18, p. 182301, 2004.
AVILA‚ RF; LUNA‚ EGS; MENON‚ MJ. Analytic models and forward scattering from accelerator to cosmic-ray energies. Physical Review D, v. 67, n. 5, p. 054020, 2003.
CSÖRGO‚ T.; GRASSI‚ F.; HAMA‚ Y.; KODAMA‚ T. Simple solutions of relativistic hydrodynamics for longitudinally and cylindrically expanding systems. Physics Letters B, v. 565, p. 107-115, 2003.
CSÖRG{\H{O}}‚ T.; AKKELIN‚ SV; HAMA‚ Y.; LUKÁCS‚ B.; SINYUKOV‚ Y.M. Observables and initial conditions for self-similar ellipsoidal flows. Physical Review C, v. 67, n. 3, p. 034904, 2003.
LUNA‚ EGS; MENON‚ MJ. Extrema bounds for the soft Pomeron intercept. Physics Letters B, v. 565, p. 123-130, 2003.
MARTINI‚ AF; MENON‚ MJ. High-energy elementary amplitudes from quenched and full QCD. Physics Letters B, v. 570, n. 1, p. 53-58, 2003.
NAVARRA‚ FS; NIELSEN‚ M.; MARQUES DE CARVALHO‚ RS; KREIN‚ G. Charmonium-pion cross section from QCD sum rules. Physics Letters B, v. 529, n. 1, p. 87-92, 2002.
ARBEX‚ N.; GRASSI‚ F.; HAMA‚ Y.; SOCOLOWSKI JR‚ O. Decoupling chemical and thermal freeze outs in hydrodynamics. Physical Review C, v. 64, n. 6, p. 064906, 2001.
BARROS JR‚ CC; HAMA‚ Y. Low energy pion-hyperon interaction. Physical Review C, v. 63, n. 6, p. 065203, 2001.
CARVALHO‚ F.; DURAES‚ FO; NAVARRA‚ FS; NIELSEN‚ M. Does the D^{-}/D^{+} Production Asymmetry Decrease at Large x_ {F}?. Physical Review Letters, v. 86, n. 24, p. 5434-5437, 2001.

Please report errors in scientific publications list by writing to: cdi@fapesp.br.