Speakers
Description
First we calculate the transverse momentum ($p_{\rm{T}}$) spectra of D meson in proton-proton (pp) collision at $\sqrt{s}$ = 5.02 TeV and compare with the CMS measurements of D meson. The calculation describes the measured data very well. We use a hydrodynamic picture for Quark-Gluon Plasma (QGP) evolution during which $p_{\rm{T}}$ spectra of charm quark is modified due to collision and radiative energy loss. We use Peigne and Peshier formalism to calculate the collisional energy loss and Reaction operator formalism (DGLV) and Generalized dead cone approach to calculate the radiative energy loss. We performed the calculation of D meson nuclear modification factor $R_{\rm{AA}}$ in PbPb collision at $\sqrt{s_{\rm{NN}}}$ = 5.02 TeV for the kinematic region covered by CMS experiments. The radiative energy loss from generalized dead cone approach alone is sufficient to produce D meson $R_{\rm{AA}}$. The radiative energy loss from DGLV formalism plus collisional energy loss gives good description of D meson $R_{\rm{AA}}$.
| Condensed Matter Physics | NA |
|---|---|
| High Energy Physics | Phenomenology |
