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Particle correlations in the CMS detector at the LHC

Grant number: 11/00217-4
Support type:Scholarships in Brazil - Post-Doctorate
Effective date (Start): March 01, 2012
Effective date (End): August 31, 2016
Field of knowledge:Physical Sciences and Mathematics - Physics - Nuclear Physics
Principal Investigator:Sandra dos Santos Padula
Grantee:Sunil Manohar Dogra
Home Institution: Instituto de Física Teórica (IFT). Universidade Estadual Paulista (UNESP). Campus de São Paulo. São Paulo , SP, Brazil
Associated research grant:13/01907-0 - São Paulo Research and Analysis Center, AP.TEM

Abstract

The correlations between identical particles, widely studied since the 1960s in high energy collisions, represent a well-established area of research, and is an important tool for probing the dimensions of particle emitting regions formed in such collisions. The research project proposes the investigation of correlations of particles produced in proton-proton (pp) and Lead-Lead (PbPb) collisions at the LHC accelerator. Measurements of such correlations have been performed at CMS in pp collisions at 0.9, 2.36 and 7 TeV. The current research project aims at extending such measurements to a multidimensional analysis of the correlation functions in terms of well-known components of the relative transverse momentum of those particles in pp collisions at 7 TeV and later at 2.76 TeV, which corresponds to the brief data taking run that happened already in 2011. The analysis will also serve as a baseline for a similar study, already under development, for particles produced in Pb+Pb collisions at the LHC, with the data obtained during the 2010 run at 2.76 TeV in the center of mass of the pair of nucleons. (AU)