Light vector meson production at forward rapidity in pp collisions at the LHC with the ALICE detector

Low-mass vector mesons (ρ,ω and Φ) give us information on the hot and dense state of strongly interacting matter produced in heavy ion collisions. In fact, in the QGP an enhancement of the strange particle production should be present (strangeness enhancement), which means a Nø/Nρ+ω ratio increasing in A-A collisions with respect to pp colli- sions; pp collisions provide a reference for these studies. Vector meson production in pp collisions is also useful by itself, to study soft Quantum ChromoDynamics (QCD) in the LHC energy range, since calculations in this regime are based on QCD inspired phenomenological models that must be tuned to the data. The ALICE experiment at the LHC can access vector mesons produced at forward rapidity through their decays in muon pairs. I show the ratio Nø/Nρ+ω vs pT , the ratios σρ/σω and σΦ/σω, and the Φ and ω pT and rapidity dierential cross sections for the data sample at 7 TeV. For the data sample at 2.76 TeV, because of the limited statistics, I have show only the Nø/Nρ+ω ratio and Φ and ω integrated cross sections.

Grantor dc:publisher

Università degli Studi di Cagliari

Year dc:date

2013

Author dc:creator

• INCANI, ELISA

• ALICE
• Quantum ChromoDynamics
• pp collisions
• Settore FIS/04 - Fisica Nucleare e Subnucleare

Statement dc:rights

• info:eu-repo/semantics/openAccess
• license:Non specificato

Language dc:language

eng

Handle dc:identifier

http://hdl.handle.net/11584/266225

OAI identifier oai:identifier

oai:iris.unica.it:11584/266225