scholarly journals Effect of in-medium mass-shift on transverse-momentum spectrum and elliptic anisotropy of ϕ meson

2020 ◽  
Vol 29 (07) ◽  
pp. 2050047
Author(s):  
Yong Zhang ◽  
Jing Yang ◽  
Weihua Wu

We study the effect of in-medium mass-shift on transverse-momentum spectrum and elliptic anisotropy of [Formula: see text] meson. It is found that the mass-shift enhances the [Formula: see text] yields and suppresses the elliptic flow [Formula: see text] in large momentum region, and the effects increase with the increasing mass-shift. The effects are various for different sources and decrease with the increasing collision energy. We further study the effects for parts of all [Formula: see text] meson with mass-shift, and the effects decrease with the decreasing probability of [Formula: see text] meson with mass-shift. A possible method to detect the mass-shift of [Formula: see text] meson via transverse-momentum spectrum and [Formula: see text] is proposed.

2015 ◽  
Vol 2015 ◽  
pp. 1-18 ◽  
Author(s):  
Jing Yang ◽  
Yan-Yu Ren ◽  
Wei-Ning Zhang

We systematically investigate the pion transverse momentum spectrum, elliptic flow, and Hanbury-Brown-Twiss (HBT) interferometry in the granular source model for the heavy ion collisions of Au-Au atsNN=200 GeV and Pb-Pb atsNN=2.76 TeV with different centralities. The granular source model can well reproduce the experimental results of the heavy ion collisions at the Relativistic Heavy Ion Collider (RHIC) and the Large Hadron Collider (LHC). We examine the parameters involved in the granular source model. The experimental data of the momentum spectrum, elliptic flow, and HBT radii for the two collision energies and different centralities impose very strict constraints on the model parameters. They exhibit certain regularities for collision centrality and energy. The space-time structure and expansion velocities of the granular sources for the heavy ion collisions at the RHIC and LHC energies with different centralities are investigated.


2020 ◽  
Vol 809 ◽  
pp. 135718 ◽  
Author(s):  
Marius Wiesemann ◽  
Luca Rottoli ◽  
Paolo Torrielli

2019 ◽  
Vol 788 ◽  
pp. 425-430 ◽  
Author(s):  
Xuan Chen ◽  
Thomas Gehrmann ◽  
E.W. Nigel Glover ◽  
Alexander Huss ◽  
Ye Li ◽  
...  

1988 ◽  
Vol 60 (16) ◽  
pp. 1622-1625 ◽  
Author(s):  
T. Alexopoulos ◽  
C. Allen ◽  
E. W. Anderson ◽  
H. Areti ◽  
S. Banerjee ◽  
...  

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