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| Elliptic flow ($v_2$) in $pp$ collisions at energies available at the CERN Large Hadron Collider: A hydrodynamical approach |
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| Content: |
The term collectivity denotes a common feature that is observed for several particles emerging from one reaction. Collective flow is the prototype of such a common feature and describes a movement of a large number of ejectiles either in a common direction or at a common magnitude of velocities. The elliptic flow $v_2$ is directly related to the measurement of collective effect of the system. The expected large multiplicities in $pp$ collisions at LHC energies, suggest the creation of a system with large energy density where the hydrodynamics can be applied to determine the dynamics of the collective effect.
In this work a hydrodynamical approach has been applied to estimate the expected $v_2$ in $pp$ collisions at $\sqrt{s}$ = 14 TeV. The code AZYHYDRO is used with the equation of state (EOS) consisting of lattice EOS and hadron resonance gas EOS. The matter distribution inside a proton is taken as Wood-Saxon type and two values of diffuseness parameter $\xi$ are used. The centrality dependence and the effect of changing initial conditions [e.g., initial time ($\tau_i$), freeze-out temperature ($\T_F$)] on $v_2$ of $\pi^-$ is studied. $v_2$ of $\pi^−$ is found to be finite and positive for both $\xi$ with a strong dependence on this parameter. The details of the hydrodynamic simulation and the results will be presented. |
| Id: |
142 |
| Place: |
Room: Main Auditorium |
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| Duration: |
00' |
| Primary Authors: |
Dr. CHATTOPADHYAY, Subhasis (VECC)
Dr. CHAUDHURI, A. K. (VECC)
Mr. PRASAD, Sidharth Kumar (VECC)
Mr. ROY, Victor (VECC) |
| Presenters: |
Mr. PRASAD, Sidharth Kumar |
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Last modified: 21 April 2011 05:02