Measurement of charged jet suppression in Pb-Pb collisions at √ sNN = 2.76 TeV (2013)
- Authors:
- Abelev, B
- Prado, Caio Alves Garcia
- Bregant, Marco
- Cosentino, Mauro Rogério
- Barros, Gabriel Oliveira Valeriano de
- Domenicis Gimenez, Diogenes
- Figueredo, Marcel Araujo Silva
- Silva, Cristiane Jahnke Fiorini da
- 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
- USP affiliated authors: MUNHOZ, MARCELO GAMEIRO - IF ; SUAIDE, ALEXANDRE ALARCON DO PASSO - IF ; TOLEDO, ALEJANDRO SZANTO DE - IF
- Unidade: IF
- Assunto: COLISÕES DE ÍONS PESADOS RELATIVÍSTICOS
- Language: Inglês
- Abstract: A measurement of the transverse momentum spectra of jets in Pb–Pb collisions at √ sNN = 2.76 TeV is reported. Jets are reconstructed from charged particles using the anti-kT jet algorithm with jet resolution parameters R of 0.2 and 0.3 in pseudo-rapidity|η| < 0.5. The transverse momentum pT of charged particles is measured down to 0.15 GeV/c which gives access to the low pT fragments of the jet. Jets found in heavy-ion collisions are corrected event-by-event for average background density and on an inclusive basis (via unfolding) for residual background fluctuations and detector effects. A strong suppression of jet production in central events with respect to peripheral events is observed. The suppression is found to be similar to the suppression of charged hadrons, which suggests that substantial energy is radiated at angles larger than the jet resolution parameter R = 0.3 considered in the analysis. The fragmentation bias introduced by selecting jets with a high pT leading particle, which rejects jets with a soft fragmentation pattern, has a similar effect on the jet yield for central and peripheral events. The ratio of jet spectra with R = 0.2 and R = 0.3 is found to be similar in Pb–Pb and simulated PYTHIA pp events, indicating no strong broadening of the radial jet structure in the reconstructed jets with R < 0.3.
- Imprenta:
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ABNT
ABELEV, B et al. Measurement of charged jet suppression in Pb-Pb collisions at √ sNN = 2.76 TeV. . São Paulo: Instituto de Física, Universidade de São Paulo. Disponível em: http://lanl.arxiv.org/pdf/1311.0633.pdf. Acesso em: 11 mar. 2026. , 2013 -
APA
Abelev, B., Prado, C. A. G., Bregant, M., Cosentino, M. R., Barros, G. O. V. de, Domenicis Gimenez, D., et al. (2013). Measurement of charged jet suppression in Pb-Pb collisions at √ sNN = 2.76 TeV. São Paulo: Instituto de Física, Universidade de São Paulo. Recuperado de http://lanl.arxiv.org/pdf/1311.0633.pdf -
NLM
Abelev B, Prado CAG, Bregant M, Cosentino MR, Barros GOV de, Domenicis Gimenez D, Figueredo MAS, Silva CJF da, Fernandes CL, Godoy DAM de, Munhoz MG, Silva ACO da, Oliveira Filho EP de, Suaide AA do P, Szanto de Toledo A. Measurement of charged jet suppression in Pb-Pb collisions at √ sNN = 2.76 TeV [Internet]. 2013 ;[citado 2026 mar. 11 ] Available from: http://lanl.arxiv.org/pdf/1311.0633.pdf -
Vancouver
Abelev B, Prado CAG, Bregant M, Cosentino MR, Barros GOV de, Domenicis Gimenez D, Figueredo MAS, Silva CJF da, Fernandes CL, Godoy DAM de, Munhoz MG, Silva ACO da, Oliveira Filho EP de, Suaide AA do P, Szanto de Toledo A. Measurement of charged jet suppression in Pb-Pb collisions at √ sNN = 2.76 TeV [Internet]. 2013 ;[citado 2026 mar. 11 ] Available from: http://lanl.arxiv.org/pdf/1311.0633.pdf - Identified particle transverse momentum spectra in p+p and d+Au collisions at ''S IND.NN' POT. 1/2' = 200GeV''
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