skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Dilepton-Tagged Q-Qbar+Jet Events at the LHC

Conference ·
OSTI ID:945858

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 the 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:
Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
Sponsoring Organization:
USDOE
DOE Contract Number:
W-7405-ENG-48
OSTI ID:
945858
Report Number(s):
LLNL-CONF-406817; TRN: US0901112
Resource Relation:
Conference: Presented at: Hard Probes 2008, Illa de A Toxa, Spain, Jun 09 - Jun 14, 2008
Country of Publication:
United States
Language:
English