Tagged particle correlations in a dense fluid: Role of microscopic dynamics

2020 ◽  
Vol 545 ◽  
pp. 123777
Author(s):  
Neeta Bidhoodi ◽  
Shankar P. Das
Keyword(s):  
Tagged Particle ◽  
Particle Correlations ◽  
Dense Fluid ◽  
Microscopic Dynamics

scholarly journals JET CORRELATIONS WITH IDENTIFIED PARTICLES FROM PHENIX: METHODS AND RESULTS

2007 ◽  
Vol 16 (10) ◽  
pp. 3160-3167 ◽  
Author(s):  
◽  
ANNE SICKLES
Keyword(s):  
Particle Production ◽  
Azimuthal Angle ◽  
Charged Hadron ◽  
Particle Identification ◽  
Particle Type ◽  
Particle Correlations ◽  
Robust Techniques ◽  
Show Evidence ◽  
Jet Fragmentation

Azimuthal angle two particle correlations have been shown to be a powerful probe for extracting novel features of the interaction between hard scattered partons and the medium produced in Au + Au collisions at RHIC. At intermediate pT, 2–5 GeV/c, the jets have been shown to be significantly modified in both their particle composition and their angular distribution compared to p + p collisions. Additionally, angular two particle correlations with identified hadrons provide information on the possible role of modified hadronization scenarios such as partonic recombination, which might allow medium modified jet fragmentation by connecting hard scattered partons to low pT thermal partons. PHENIX has excellent particle identification capabilities and has developed robust techniques for extracting jet correlations from the large underlying event. We present recent PHENIX results from Au + Au collisions for a variety of pT and particle type combinations. We also present p + p measurements as a baseline. We show evidence that protons and anti-protons in the pT region of enhanced baryon and anti-baryon single particle production are produced in close angle pairs of opposite charge and that the strong modifications to the away side shape observed for charged hadron correlations are also present when baryons are correlated.

scholarly journals Predictive Self-Assembly of Complex Crystals via Building Block Design

2014 ◽  
Vol 70 (a1) ◽  
pp. C1537-C1537
Author(s):  
Pablo Damasceno ◽  
Michael Engel ◽  
Sharon Glotzer
Keyword(s):  
Self Assembly ◽  
Block Design ◽  
Building Blocks ◽  
High Yield ◽  
Computational Studies ◽  
Local Structures ◽  
Polyhedral Particles ◽  
Dense Fluid ◽  
Complex Crystals

A primary challenge for the development of bulk, scalable, and high yield materials with interesting properties is the limited number of structures that can be obtained via self-assembly of nano and micrometer sized particles. Systematic and extensive computational studies of hard polyhedral particles have demonstrated that anisotropy of the building blocks can be a viable route for increasing variability of assembled patterns [1, 2, 3]. Interestingly, the types of structures assembled from this method were shown to be predictable from information contained already in the dense fluid, prior to crystallization. In this talk, the role of such local structures for self-assembly will be rationalized and we will demonstrate how this information can be used as a strategy for design of crystalline and quasicrystalline patterns for both symmetric and asymmetric particles.

scholarly journals INTERMITTENCY AND BOSE-EINSTEIN CORRELATIONS

1995 ◽  
Vol 10 (28) ◽  
pp. 3951-3983 ◽  
Author(s):  
I.V. ANDREEV ◽  
I.M. DREMIN ◽  
M. BIYAJIMA ◽  
N. SUZUKI
Keyword(s):  
Phase Space ◽  
Small Cells ◽  
Factorial Moments ◽  
Particle Correlations ◽  
Bose Einstein ◽  
Different Origins

The role of Bose-Einstein (BE) correlations in a widely discussed intermittency phenomenon is reviewed. In particular, it is shown that particle correlations of different origins are better displayed when analyzed as functions of appropriately chosen variables. Correspondingly, if the shape of the BE contribution is chosen to be Gaussian in three-momentum transferred, it provides the power-like law in four-momentum squared and is smeared out in (pseudo)rapidity. The increase in factorial moments in small cells of the phase space looks also different in different variables, which is ascribed to varying shares of various mechanisms of both dynamical (e.g. parton jets) and symmetry (BE correlations) origin.

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