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Content archived on 2024-06-18

Quark-Gluon Plasma through dilepton studies with the CMS experiment at the Large Hadron Collider

Objective

This proposal aims at consolidating a Quark-Gluon Plasma research team recently founded by Raphaël Granier de Cassagnac, the Principal Investigator (PI) of this proposal, at the Laboratoire Leprince-Ringuet (LLR).
The PI has a deep experience of heavy-ions physics, working since 9 years in the PHENIX collaboration of the Relativistic Heavy Ion Collider. His recognized activities already propelled him soon after having joined the CMS collaboration at the Large Hadron Collider, as convener of the world-wide Heavy Ions Physics Analysis Group for a term covering the 2010-2011period.
CMS, the Compact Muon Collaboration, is extremely well suited for muon measurements. From di-muon mass spectra we will first measure Z-bosons for the first time in a heavy-ions environment. This provides useful information on quark distribution function in nuclei, and opens the field of Z-jet studies, allowing unbiased studies of jet fragmentation function. We will also measure quarkonia (J/È and Upsilons). Though Upsilons will be novel measurements, J/È have been extensively studied by the PI at RHIC. A larger suppression observed at forward rapidity is still a puzzle, that we will help solving.
We propose to enhance a computing centre (the GRIF Tier-2) to conduct heavy-ions specific data reconstruction, analysis and simulations. We also want to open a new activity: electron reconstruction in CMS heavy-ions environment. This very challenging objective will benefit from LLR highly experienced p+p physicists in electron reconstruction. The access to the dielectron mass spectra will raise the statistics of our signal and provide a crucial cross-check of all studies.
Finally, we want to keep a phenomenological component in the team, so to have all the tools to properly interpret our own results.

Fields of science (EuroSciVoc)

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Topic(s)

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Call for proposal

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ERC-2010-StG_20091028
See other projects for this call

Funding Scheme

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ERC-SG - ERC Starting Grant

Host institution

CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE CNRS
EU contribution
€ 1 133 600,00
Total cost

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No data

Beneficiaries (1)

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