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1.
Hyperon Polarization along the Beam Direction Relative to the Second and Third Harmonic Event Planes in Isobar Collisions at <math display="inline"><mrow><msqrt><mrow><msub><mrow><mi>s</mi></mrow><mrow><mi>N</mi><mi>N</mi></mrow></msub></mrow></msqrt><mo>=</mo><mn>200</mn><mtext> </mtext><mtext> </mtext><mi>GeV</mi></mrow></math> / STAR Collaboration
The polarization of $\Lambda$ and $\bar{\Lambda}$ hyperons along the beam direction has been measured relative to the second and third harmonic event planes in isobar Ru+Ru and Zr+Zr collisions at $\sqrt{s_{NN}}$ = 200 GeV. This is the first experimental evidence of the hyperon polarization by the triangular flow originating from the initial density fluctuations. [...]
arXiv:2303.09074.- 2023-11-14 - 7 p. - Published in : Phys. Rev. Lett. 131 (2023) 202301 Fulltext: PDF;
2.
Effect of limited statistics on higher order cumulants measurement in heavy-ion collision experiments / Pandav, Ashish (NISER, Jatni) ; Mallick, Debasish (NISER, Jatni) ; Mohanty, Bedangadas (NISER, Jatni ; CERN)
We have studied the effect of limited statistics of data on measurement of the different order of cumulants of net-proton distribution assuming that the proton and antiproton distributions follow Possionian and Binomial distributions with initial parameters determined from experimental results for two top center of mass energies ($\sqrt{s_{\mathrm{NN}}}=200$ and $62.4$ GeV) in most central ($0-5$%) Au$+$Au collisions at Relativistic Heavy Ion Collider (RHIC). In this simulation, we observe that the central values for higher order cumulants have a strong dependence on event sample size and due to statistical randomness the central values of higher order cumulants could become negative. [...]
arXiv:1809.08892.- 2019-11 - 21 p. - Published in : Nucl. Phys. A 991 (2019) 121608 Fulltext: PDF;
3.
Probing thermal nature of matter formed at RHIC via fluctuations / Gupta, Sourendu (Tata Inst.) ; Mallick, Debasish (NISER, Jatni) ; Mishra, Dipak K (Bhabha Atomic Res. Ctr.) ; Mohanty, Bedangadas (NISER, Jatni ; CERN) ; Xu, Nu (CCNU, Wuhan, Inst. Part. Phys. ; Hua-Zhong Normal U., LQLP ; Lanzhou, Inst. Modern Phys.)
Arguments for thermalization of the QCD matter created in high-energy nuclear collisions has dominantly come from the agreement of the measured yields of produced hadrons with those from statistical thermal models. Ideally for a thermalized system, in addition to mean, the higher orders of the moments of the multiplicity distribution of produced particles should also show agreement with thermal models. [...]
2021 - 4 p. - Published in : Nucl. Phys. A 1005 (2021) 121987
In : The 28th International Conference on Ultra-relativistic Nucleus-Nucleus Collisions, Wuhan, China, 3 - 9 Nov 2019, pp.121987

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