Dilepton-tagged QQ+Jet events at the LHC

Journal Article · Thu Jan 01 00:00:00 EST 2009 · European Journal of Physics C

DOI:https://doi.org/10.1140/epjc/s10052-009-0929-y· OSTI ID:962318

Mironov, Camelia ^[1]; Kunde, Gerd J ^[1]; Vogt, Ramona ^[2]

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1. Los Alamos National Laboratory
2. LLNL

We propose a new method for identifying and isolating Q{bar Q} + jet events through semileptonic decays of the Q{bar Q} pair. Employing these decay dileptons to tag the jet in a specific kinematic region provides a clean signature of jets associated with heavy-quark production. The measurement, in both pp and heavy-ion collisions, is essential for addressing heavy-quark fragmentation in vacuum and in a dense medium. We present next-to-leading order calculations of Q{bar Q} production (leading order in Q{bar Q} jet production) in {radical}s = 14 TeV pp collisions at the LHC and discuss the feasibility of the measurement in heavy-ion collisions at {radical}s{sub NN} = 5.5 TeV.

• Research Organization: Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)
• Sponsoring Organization: USDOE
• DOE Contract Number: AC52-06NA25396
• OSTI ID: 962318
• Report Number(s): LA-UR-09-01404; LA-UR-09-1404; TRN: US0903736
• Journal Information: European Journal of Physics C, Vol. 61, Issue 4
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
STRANGE MESONS
JETS
ANTIMESONS
QUARKS
PARTICLE PRODUCTION
FRAGMENTATION
SEMILEPTONIC DECAY
COLLISIONS
PROTONS
HEAVY IONS