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| Kaon and Lambda production in heavy ion collisions |
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| Content: |
A microscopic approach has been employed to study the $\Lambda$ and kaon
productions in heavy ion collisions. The productions of $K^+$ and
$\Lambda$ have been studied within the framework of Boltzmann transport
equation for various beam energies. An exhaustive set of reactions have been considered for strangeness productions in hadronic system.
We find a non-monotonic horn like structure for $K^+/\pi^+$
(as experimentally observed) when plotted against centre of mass energies
($\sqrt{s_{\mathrm NN}}$) with the assumption of initial partonic phase
for $\sqrt{s_{\mathrm NN}}$ beyond a certain threshold.
However, the ratio shows a monotonic nature for all
$\sqrt{s_{\mathrm NN}}$ when a hadronic initial state is considered. We attribute this to the release of large number of colour degrees of freedom
at higher collision energies. Experimental values of $K^-/\pi^-$ are also reproduced within the ambit of the same formalism. Results on $\Lambda/\pi$ ratio for different $\sqrt{s_{\mathrm NN}}$ - ranging from AGS to RHIC will also be reported. |
| Id: |
81 |
| Place: |
Room: Main Auditorium |
| Starting date: |
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| Duration: |
00' |
| Primary Authors: |
Dr. BANIK, Sarmistha (VECC) |
| Co-Authors: |
Mr. NAYAK, Jajati K. (VECC)
Dr. ALAM, Jan-e (VECC) |
| Presenters: |
Dr. BANIK, Sarmistha |
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Last modified: 21 April 2011 05:02