Speaker
Dr
Umme Jamil Begum
(Debraj Roy College, Golaghat, Assam, India)
Description
Heavy quarks are produced at the initial fusion of ultrarelativistic heavy-ion collisions. After their production, they propagate through the quark gluon plasma and lose energy by colliding with quarks and gluons and by radiating gluons. After their production, they may also get fragmented into heavy mesons by picking up light quarks/antiquarks and in turn may decay through leptonic channels. These leptons would carry information of the initial stage of heavy ion collisions and also the evolution of the plasma. In this work, we calculate the elliptic flow of muons from heavy flavours decay at forward rapidities in Pb+Pb collision.
The transverse momentum distribution of heavy quarks produced from the initial fusion of partons, is calculated by FONLL ( Fixed Order Next-to-Leading Logarithms) approach. We consider both radiative and collisional energy loss along with a boost-invariant expansion of the plasma for the calculation of elliptic flow. The fragmentation of heavy quarks into mesons is governed by Peterson fragmentation function. We compare our result at 2.76 ATeV with the ALICE Preliminary data.
References:
1. R. Abir et al., Phys. Lett. B 715, 183 (2012).
2. M. Cacciari, M. Greco and P. Nason, J. High Energy Phys.9805, 007 (1998).
3. M. Cacciari, S. Frixione and P. Nason, J. High Energy Phys.0103, 006 (2001).
4. C. Peterson, D. Schlatter, I. Schmitt, P. Zerwas, Phys. Rev. D 27, 105 (1983).
5. G. Luparello for the ALICE Collaboration, arXiv:1411.2442v1 [nucl-ex] (2014).
| On behalf of collaboration: | NONE |
|---|
Primary author
Dr
Umme Jamil Begum
(Debraj Roy College, Golaghat, Assam, India)
Co-authors
Dr
Dinesh Srivastava
(Variable Energy Cyclotron Centre, Kolkata)
Prof.
Munshi Golam Mustafa
(Saha Institute of Nuclear Physics, Kolkata)
Dr
Raktim Abir
(Wayne State University Detroit Michigan USA)
Dr
Somnath De
(Institute of Physics, Bhubaneswar, India)
