Published: 03 December 2014

In the past months, a number of ALICE PhD students successfully defended their thesis, reflecting the diversity of scientific questions posed by heavy-ion physics.

Tomas Aronsson studied heavy flavour production in proton-proton collisions under the supervision of Professor John Harris at Yale University. During his PhD he also carried out essential work on the EMCal supermodule testing during their assembly at Yale and cosmic-ray calibration and tests, on the EMCal cluster-finding, EMCal-TPC track matching, EMCal calibration software. Dr. Aronsson also worked on the development of the first version of the ALICE software for tagging B-decays.

Luke Hanratty submitted his thesis on “Lambda and K0-short production in Pb-Pb and pp collisions with ALICE at the LHC” under the supervision of Professor Peter G. Jones and Dr. Lee Barnby (University of Birmingham). His work focused on the production of strange baryons and mesons in  proton-proton and nucleus-nucleus collisions at the highest energies.

Hege Austrheim Erdal pursued his thesis on “D0-electron correlations with the ALICE detector in pp collisions at sqrt(s)= 7 TeV” at the University of Bergen. He studied charmed hadron production in pp collisions, an essential baseline for their study in PbPb. During this period he also carried significant work in performing the DQM monitoring for HLT. We would like to take the opportunity to thank also the ALICE groups at Bergen University College and University of Bergen, and Prof. Håvard Helstrup, Dieter Röhrich and Kristin Fanebust Hetland for their efforts in training the next generation of scientists.       

Ranbit Singh completed his thesis on “Azimuthal  Anisotropy Measurement in PbPb Collisions at $Sqrt{s_{NN}}S = 2.76 TeV and Possibility of Finding Jet-Like events in PMD” at the University of Jammu under the supervision of Prof. S.S. Sambyal and Prof. Bedangadas Mohanty. His thesis advances understanding of flow in nucleus-nucleus collisions. He also studied the geometry of the presently installed PMD.

Igor Lakomov  (IPN, Orsay) submitted his thesis on the “Measurement of the J/Psi production in p-Pb collisions at the LHC with the ALICE Muon Spectrometer”.  His thesis supervisor was Bruno Espagnon (IPN Orsay). Igor also studied the pile-up impact on the centrality estimators in the rare trigger period in p-Pb

Last month, Subhash Singha (National Institute of Science Education and Research, Bhubaneswar)  presented his thesis on “Identified Particle Production in Pb-Pb and pp collisions at LHC energies” under the guidance of Prof. Bedangadas Mohanty (NISER). His work helps to understand resonance production in proton-proton and nucleus-nucleus collisions. He also took part in the testing of the PMD detector as well as the installation, calibration, unfolding and data QA.

Michal Meres (Comenius University) worked on net baryon density at central rapidity in nucleus-nucleus collisions. His thesis on "Measurement of baryon-antibaryon asymmetry in the region of central rapidities in heavy ion interactions at the LHC” was jointly supervised by Prof. RNDr. Branislav Sitár and Dr. Karel Šafařík

Jiri Kral (Jyvaskyla University) presented his thesis on “Intrinsic transverse momentum distribution of jet constituents in p–Pb collisions at ALICE” under the supervision of Prof. Jan Rak. He also contributed to the development of the single photon L0 trigger for EMCal and  more generally to the FPGA programming of the EMCAL trigger units

Finally, Deepa Thomas (Utrecht University) studied the behaviour of heavy flavour hadrons in jets both in pp and in nucleus-nucleus collisions. She successfully completed her thesis on “Jet-like heavy flavour particle correlations in proton-proton and lead-lead collisions in ALICE" under the supervision of Prof. Andre Mischke and Thomas Peitzmann.

ALICE Matters wishes to all of them a very successful continuation of their scientific career.