# Heavy Quark Energy Loss in High Multiplicity Proton Proton Collisions at LHC

Abstract : One of the most promising probes to study deconfined matter created in high energy nuclear collisions is the energy loss of (heavy) quarks. It has been shown in experiments at the Relativistic Heavy Ion Collider (RHIC) that even charm and bottom quarks, despite their high mass, experience a remarkable medium suppression in the Quark Gluon Plasma. In this exploratory investigation we study the energy loss of heavy quarks in high multiplicity proton-proton collisions at LHC energies. Although the colliding systems are smaller than compared to those at RHIC (p+p vs. Au+Au) the higher energy might lead to multiplicities comparable to Cu+Cu collisions at RHIC. Recently the CMS collaboration has shown that these particles likely interact among each other. The interaction of charm quarks with this environment gives rise to a non-negligible suppression of high momentum heavy quarks in elementary collisions.
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Journal articles
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http://hal.in2p3.fr/in2p3-00624255
Contributor : Dominique Girod <>
Submitted on : Friday, September 16, 2011 - 11:20:43 AM
Last modification on : Thursday, February 4, 2021 - 12:28:02 PM

### Citation

S. Vogel, Pol-Bernard Gossiaux, Klaus Werner, Jörg Aichelin. Heavy Quark Energy Loss in High Multiplicity Proton Proton Collisions at LHC. Physical Review Letters, American Physical Society, 2010, 107, pp.032302. ⟨10.1103/PhysRevLett.107.032302⟩. ⟨in2p3-00624255⟩

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