Λc analysis with the ALICE detector at the LHC

Workshop for Young Scientists on the Physics of Ultrarelativistic Nucleus–Nucleus Collisions 2012

Romita, Rosa^1

University of Liverpool, Daresbury Laboratory, United Kingdom^1

关键词: Analysis strategies;    Decay channels;    Invariant mass;    LHC experiments;    Nuclear collisions;    Particle identifications;    Pp collisions;    Quark-gluon plasma;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/446/1/012036/pdf
DOI  :  10.1088/1742-6596/446/1/012036

来源: IOP

【 摘 要 】

ALICE is the LHC experiment dedicated to the study of the Quark Gluon Plasma (QGP) in high-energy nuclear collisions. Due to their large mass and their production at the early collision stage, heavy quarks (charm and beauty) are well-suited probes to study the properties of the QGP. The open charm baryon Λcis reconstructed in ALICE in the decay channels Λc+→ π++ K-+ p and Λc+→ K0S+ p, exploiting both topological selections and particle identification. We report about the analysis strategy to observe the signal in pp collisions for both decay channels and then show the invariant mass plots where the Λcpeak is clearly visible.