Correlation among target fragments produced in a heavy-ion interactions: search for shock-wave phenomenon

1986 ◽  
Vol 64 (3) ◽  
pp. 239-241 ◽  
Author(s):  
Dipak Ghosh ◽  
Jaya Roy ◽  
Kaushik Sengupta ◽  
Anuradha Dutta ◽  
Madhumita Basu ◽  
...  
Keyword(s):  
Experimental Data ◽  
Shock Wave ◽  
Monte Carlo ◽  
Short Range ◽  
Heavy Ion ◽  
Short Range Correlation ◽  
Angular Correlations ◽  
Ion Interactions ◽  
Range Correlation ◽  
Shock Wave Formation

This paper presents a study of two-particle inclusive angular correlations among "black" and "grey" particles produced in the interaction O16 nuclei with photoemulsions at 2.1 GeV/nucleon. The experimental data have been compared with the Monte Carlo simulated values assuming an independent emission. It has been observed that there is some short-range correlation among the target fragments, which may indicate shock-wave formation.

Indication of Shock-wave in 12C + Emulsion Interactions at 4.5 GeV per Nucleon

1987 ◽  
Vol 42 (8) ◽  
pp. 835-840 ◽  
Author(s):  
Dipak Ghosh ◽  
Jaya Roy ◽  
Ranjan Sengupta
Keyword(s):  
Experimental Data ◽  
Shock Wave ◽  
Monte Carlo ◽  
Angular Distribution ◽  
Angular Correlation ◽  
Short Range ◽  
Wave Formation ◽  
Short Range Correlation ◽  
Range Correlation ◽  
Shock Wave Formation

This paper presents a study of the angular distribution and two-particle angular correlation among ‘black’ and ‘rey’particles produced in the interaction of 12C nuclei with a photoemulsion at 4.5 GeV per nucleon. Experimental data are compared with Monte Carlo simulated values assuming independent emission. The observation of some short-range correlation among the target fragments may indicate shock-wave formation.

EVALUATING MEAN INTRINSIC CURVATURE OF DISORDERED SEMIFLEXIBLE BIOPOLYMERS

2012 ◽  
Vol 26 (24) ◽  
pp. 1250131 ◽  
Author(s):  
CHIN-YI HUNG ◽  
ZICONG ZHOU ◽  
YUAN-SHIN YOUNG ◽  
FANG-TING LIN
Keyword(s):  
Experimental Data ◽  
Distribution Function ◽  
Power Law ◽  
Short Range ◽  
Exact Distribution ◽  
Two Dimensional ◽  
Intrinsic Curvature ◽  
Short Range Correlation ◽  
Range Correlation ◽  
Exact Distribution Function

We study two-dimensional disordered semiflexible biopolymers with finite mean intrinsic curvature (MIC). We find exact distribution function of orientational angle for the system with short-range correlation (SRC) in intrinsic curvatures. We show that with a finite MIC, our theoretical end-to-end distances can be fitted well to some experimental data of DNA with long-range correlation (LRC) in sequences. Moreover, we find that the variance of the orientational angle has the same power-law behavior as that of the bending profile for DNA with LRC in sequences. Our results provide a way to evaluate MIC and suggest that the LRC in sequences can result in a SRC in intrinsic curvatures.

Some Analytical Results of Bunching Parameters for Multiplicity Fluctuations in High Energy Collisions

1997 ◽  
Vol 12 (38) ◽  
pp. 2975-2984 ◽  
Author(s):  
Ding-Wei Huang
Keyword(s):  
Experimental Data ◽  
Phase Space ◽  
Short Range ◽  
High Energy ◽  
Short Range Correlation ◽  
Hadron Multiplicity ◽  
Analytical Results ◽  
Range Correlation ◽  
Parameters Analysis ◽  
High Energy Collisions

A few analytical results are presented for the bunching parameters analysis applied to study the fluctuations of hadron multiplicity density in high energy collisions. The behaviors of bunching parameters are analyzed in the cases of concatenate and partitioning fluctuations. The effect of pairing in partition is also studied. As the phase-space decreases, the concatenation can be observed as the divergence of one of the bunching parameters, which also implies a strong short range correlation. In the case of a weak short range correlation, both types of binomial partitions lead to saturation for all the bunching parameters. As the phase-space increases, the effects of pair production can be observed as the oscillatory bunching parameters ηq — a function of order q. The characteristics of the observed features are discussed. Comparisons to experimental data are also presented.

scholarly journals The effect of short range correlation on the inelastic C4 form factors of 18O nucleus

2019 ◽  
Vol 13 (28) ◽  
pp. 130-141
Author(s):  
Abdullah S. Mdekil
Keyword(s):  
Charge Density ◽  
Short Range ◽  
Form Factors ◽  
Model Space ◽  
Charge Density Distribution ◽  
Short Range Correlation ◽  
Range Correlation ◽  
Free Parameters ◽  
State Charge ◽  
Short Range Correlations

The effect of short range correlations on the inelastic longitudinalCoulomb form factors for different states of J   4 , T  1withexcitation energies 3.553,7.114, 8.960 and 10.310 MeV in 18O isanalyzed. This effect (which depends on the correlation parameter )is inserted into the ground state charge density distribution throughthe Jastrow type correlation function. The single particle harmonicoscillator wave function is used with an oscillator size parameter b.The parameters  and b are considered as free parameters, adjustedfor each excited state separately so as to reproduce the experimentalroot mean square charge radius of 18O. The model space of 18O doesnot contribute to the transition charge density. As a result, theinelastic Coulomb form factors of 18O comes absolutely from thecore polarization transition charge density. According to thecollective modes of nuclei, the core polarization transition chargedensity is assumed to have the form of Tassie shape. It is found thatthe introduction of the effect of short range correlations is necessaryfor obtaining a remarkable modification in the calculated inelasticlongitudinal Coulomb form factors and considered as an essential forexplanation the data amazingly throughout the whole range ofconsidered momentum transfer.

Sign in / Sign up

Export Citation Format

Share Document