Low-mass vector meson production at forward rapidity in p + p and d + Au collisions at √S_NN = 200 GeV from a multiphase transport model

Low-mass vector meson (ρ, ω, and ø) production at forward rapidity in p + p and d + Au collisions at √S_NN = 200 GeV is studied within the framework of a multiphase transport model (AMPT). Detailed investigations, including the transverse momentum and the rapidity dependence of low-mass vector meson production in the AMPT model, show that the hadron interaction process is important for a quantitative description of the ρ and ω data. But for the ø meson, the strange quark production in the AMPT model with the string melting scenario describes the data reasonably well, while the default AMPT model under-predicts the data. The N(ø)/N(ρ + ω) ratio from the AMPT model with the string melting scenario perfectly describes the data in p + p collisions. For the d + Au collisions, an increased trend of this ratio vs. transverse momentum and the number of participants are observed from the AMPT model. Our results indicate that a precise measurement of the N(ø)/N(ρ + ω) ratio in d + Au and Au + Au collisions will shed more light on the strangeness production and its dynamics in quark-gluon plasma. (authors)