In a framework of a multi-phase transport model with both partonic and hadronic interactions, azimuthal correlations between trigger particles and associated scattering particles in Au + Au collisions at √ sNN = 200 GeV/c have been studied by the mixing-event technique. The Mach-like structure has been observed in correlation function for central collisions. It is shown that the Mach-like struc...

The central-arbitrary bin and forward-backward bin multiplicity correlation patterns for Au+Au collisions at √ sNN= 7.7 − 62.4 GeV are investigated within a multi-phase transport (AMPT) model. An interesting observation is that for √ sNN < 19.6 GeV Au+Au collisions, these two correlation patterns both have an increase with the pseudorapidity gap, while for √ sNN > 19.6 GeV Au+Au collisions, the...

Spectra of identified charged hadrons are measured in pPb collisions with the CMS detector at the LHC at √ s N N = 5.02 TeV. Charged pions, kaons, and protons in the transverse-momentum range p T ≈ 0.1–1.7 GeV/c and laboratory rapidity |y| < 1 are identified via their energy loss in the silicon tracker. The average p T increases with particle mass and the charged multiplicity of the event. The ...

The feasibility study of direct open charm measurements by its decay into two daughter particles, pion and kaon, in central Pb-Pb collision at SPS energies of 158AGeV and 40AGeV, shows that such measurements are viable at NA61/SHINE experiment if it is supplemented with a dedicated Vertex Detector (VD). We use AMPT (A Multi-Phase Transport model) event generator to generate the physical input f...

We describe in detail how the different components of a multiphase transport (AMPT) model that uses the heavy ion jet interaction generator (HIJING) for generating the initial conditions, Zhang’s parton cascade (ZPC) for modeling partonic scatterings, the Lund string fragmentation model or a quark coalescence model for hadronization, and a relativistic transport (ART) model for treating hadroni...

Estimation of surface runoff in a watershed based on the rate of received precipitation and quantifying discharge at outlet is important in hydrologic studies. In this study, HEC-HMS hydrological model version 3.4 was used to simulate rainfall-runoff process in Abnama watershed located in south of Iran. To compute infiltration, rainfall excess conversion to runoff and flow routing, methods like...

In order to get the law of rainwater infiltration and progressive water damage, slope Tianshang bridge foundation in Yunnan Province China is taken as engineering basis. The site investigation damaged carried out. traditional Green-Ampt model improved by considering ponding effect dynamic flow on surface. Based variation characteristics wetting front obtained model, failure process with continu...