J/ψ polarization in p + p collisions at √s = 200 GeV in STAR (2013)
- Authors:
- 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: We report on a polarization measurement of inclusive J/ψ mesons in the di-electron decay channel at mid-rapidity at 2 < pT < 6 GeV/c in p + p collisions at √ s = 200 GeV. Data were taken with the STAR detector at RHIC. The J/ψ polarization measurement should help to distinguish between the different models of the J/ψ production mechanism since they predict different pT dependences of the J/ψ polarization. In this analysis, J/ψ polarization is studied in the helicity frame. The polarization parameter λθ measured at RHIC becomes smaller towards high pT , indicating more longitudinal J/ψ polarization as pT increases. The result is compared with predictions of presently available models
- Imprenta:
-
ABNT
ADAMCZYK, L et al. J/ψ polarization in p + p collisions at √s = 200 GeV in STAR. . São Paulo: Instituto de Física, Universidade de São Paulo. Disponível em: http://lanl.arxiv.org/pdf/1311.1621v1.pdf. Acesso em: 28 set. 2024. , 2013 -
APA
Adamczyk, L., Lima, L. M. de, Munhoz, M. G., Oliveira, R. A. N. de, Souza, U. G. de, Suaide, A. A. do P., & Szanto de Toledo, A. (2013). J/ψ polarization in p + p collisions at √s = 200 GeV in STAR. São Paulo: Instituto de Física, Universidade de São Paulo. Recuperado de http://lanl.arxiv.org/pdf/1311.1621v1.pdf -
NLM
Adamczyk L, Lima LM de, Munhoz MG, Oliveira RAN de, Souza UG de, Suaide AA do P, Szanto de Toledo A. J/ψ polarization in p + p collisions at √s = 200 GeV in STAR [Internet]. 2013 ;[citado 2024 set. 28 ] Available from: http://lanl.arxiv.org/pdf/1311.1621v1.pdf -
Vancouver
Adamczyk L, Lima LM de, Munhoz MG, Oliveira RAN de, Souza UG de, Suaide AA do P, Szanto de Toledo A. J/ψ polarization in p + p collisions at √s = 200 GeV in STAR [Internet]. 2013 ;[citado 2024 set. 28 ] Available from: http://lanl.arxiv.org/pdf/1311.1621v1.pdf - Heavy flavor production at STAR
- Using jet asymmetries to access the gluon helicity distribution of the proton at STAR
- Strange baryon resonance production in ''S IND. NN' POT. 1/2'=200 GeV p+p and Au+Au collisions
- Longitudinal double spin asymmetry in inclusive jet production at STAR
- Acceptance effects in the hyperons global polarization measurement
- Inclusive hadron production in p+p collision at STAR
- First measurement of the jet cross section in polarized p+p collisions at ''S IND. NN' POT. 1/2'=200 GeV
- Strangeness production in small and large collisions systems at RHIC
- Measurements of 'lâmbda' and 'lâmbda BARRA' polarization in longitudinally polarized proton-proton collisions at ''S IND.NN' POT. 1/2 '= 200 GeV'
- Strangeness production in small and large collision systems at RHIC
How to cite
A citação é gerada automaticamente e pode não estar totalmente de acordo com as normas
