Charmonium and e +e − pair photoproduction at mid-rapidity in ultra-peripheral Pb-Pb collisions at √ sNN= 2.76 TeV (2013)
- Autores:
- Abbas, E
- Carlin Filho, Nelson
- Barros, Gabriel Oliveira Valeriano de
- Deppman, Airton
- Figueredo, Marcel Araujo Silva
- Jahnke, Cristiane
- Fernandes, Caio Lagana
- Godoy, Denise Aparecida Moreira de
- Munhoz, Marcelo Gameiro
- Silva, Antonio Carlos Oliveira da
- Oliveira Filho, Elienos Pereira de
- Suaide, Alexandre Alarcon do Passo
- Szanto de Toledo, Alejandro
- Autores USP: CARLIN FILHO, NELSON - IF ; DEPPMAN, AIRTON - IF ; MUNHOZ, MARCELO GAMEIRO - IF ; SUAIDE, ALEXANDRE ALARCON DO PASSO - IF ; TOLEDO, ALEJANDRO SZANTO DE - IF
- Unidade: IF
- Assuntos: COLISÕES DE ÍONS PESADOS RELATIVÍSTICOS; CROMODINÂMICA QUÂNTICA
- Idioma: Inglês
- Resumo: The ALICE Collaboration at the LHC has measured the J/ψ and ψ ′ photoproduction at mid-rapidity in ultra-peripheral Pb-Pb-collisions at √ sNN=2.76 TeV. The charmonium is identified via its leptonic decay for events where the hadronic activity is required to be minimal. The analysis is based on an event sample corresponding to an integrated luminosity of about 23 µb −1 . The cross section for coherent and incoherent J/ψ production in the rapidity interval -0.9 <y< 0.9, are dσ coh J/ψ /dy = 2.38+0.34-0.24 (sta+sys) mb. and dσ inc J/ψ /dy =mb, 0.98+0.19-0.17(sta+sys) respectively. The results are compared to theoretical models for J/ψ production and the coherent cross section is found to be in good agreement with those models which include nuclear gluon shadowing consistent with EPS09 parametrization. In addition the cross section for the process γγ → e +e − has been measured and found to be in agreement with the STARLIGHT Monte Carlo predictions.
- Imprenta:
-
ABNT
ABBAS, E et al. Charmonium and e +e − pair photoproduction at mid-rapidity in ultra-peripheral Pb-Pb collisions at √ sNN= 2.76 TeV. . São Paulo: Instituto de Física, Universidade de São Paulo. Disponível em: http://lanl.arxiv.org/pdf/1305.1467.pdf. Acesso em: 04 maio 2024. , 2013 -
APA
Abbas, E., Carlin Filho, N., Barros, G. O. V. de, Deppman, A., Figueredo, M. A. S., Jahnke, C., et al. (2013). Charmonium and e +e − pair photoproduction at mid-rapidity in ultra-peripheral Pb-Pb collisions at √ sNN= 2.76 TeV. São Paulo: Instituto de Física, Universidade de São Paulo. Recuperado de http://lanl.arxiv.org/pdf/1305.1467.pdf -
NLM
Abbas E, Carlin Filho N, Barros GOV de, Deppman A, Figueredo MAS, Jahnke C, Fernandes CL, Godoy DAM de, Munhoz MG, Silva ACO da, Oliveira Filho EP de, Suaide AA do P, Szanto de Toledo A. Charmonium and e +e − pair photoproduction at mid-rapidity in ultra-peripheral Pb-Pb collisions at √ sNN= 2.76 TeV [Internet]. 2013 ;[citado 2024 maio 04 ] Available from: http://lanl.arxiv.org/pdf/1305.1467.pdf -
Vancouver
Abbas E, Carlin Filho N, Barros GOV de, Deppman A, Figueredo MAS, Jahnke C, Fernandes CL, Godoy DAM de, Munhoz MG, Silva ACO da, Oliveira Filho EP de, Suaide AA do P, Szanto de Toledo A. Charmonium and e +e − pair photoproduction at mid-rapidity in ultra-peripheral Pb-Pb collisions at √ sNN= 2.76 TeV [Internet]. 2013 ;[citado 2024 maio 04 ] Available from: http://lanl.arxiv.org/pdf/1305.1467.pdf - Mid-rapidity anti-baryon to baryon ratios in pp collisions at √ s = 0.9, 2.76 and 7 TeV measured by ALICE
- Multiplicity dependence of two-particle azimuthal correlations in pp collisions at the LHC
- Performance of the ALICE VZERO system
- Quasi-elastic barrier distribution and derivation of the nuclear matter diffuseness
- Centrality dependence of p, K, p production in Pb–Pb collisions at p sNN = 2.76 TeV
- Centrality determination of Pb–Pb collisions at p sNN= 2.76 TeV with ALICE
- Directed flow of charged particles at mid-rapidity relative to the spectator plane in Pb–Pb collisions at p sNN = 2.76 TeV
- Energy Dependence of the Transverse Momentum Distributions of Charged Particles in pp Collisions Measured by ALICE
- Centrality dependence of the pseudorapidity density distribution for charged particles in Pb–Pb collisions at p sNN = 2:76TeV
- J/ψ Elliptic Flow in Pb-Pb collisions at √ sNN = 2.76 TeV
Como citar
A citação é gerada automaticamente e pode não estar totalmente de acordo com as normas
