Mean charged hadron multiplicities in high energy collisions — a new approach

1979 ◽  
Vol 57 (8) ◽  
pp. 1131-1135
Author(s):  
D. C. Ghosh ◽  
S. C. Naha ◽  
T. Roy
Keyword(s):  
Experimental Data ◽  
Energy Region ◽  
High Energy ◽  
Charged Hadron ◽  
New Approach ◽  
Entire Energy ◽  
High Energy Collisions ◽  
Region 10 ◽  
Semi Empirical ◽  
Remarkable Agreement

A semi-empirical formulation for the energy dependence of multiplicity in p–p collision has been proposed. It has been found that experimental data for the multiplicity show a remarkable agreement with this formulation in the entire energy region 10 GeV to 106 GeV.

Modified Heisenberg's Approach for the Mean Charged Hadron Multiplicity in High Energy Collisions

1978 ◽  
Vol 33 (4) ◽  
pp. 493-497
Author(s):  
D. C. Ghosh ◽  
I. K. Daftari ◽  
D. K. Bhattacharjee ◽  
S. C. Naha ◽  
A. Roy Chowdhury ◽  
...  
Keyword(s):  
Energy Range ◽  
High Energy ◽  
Charged Hadron ◽  
Entire Energy Range ◽  
Hadron Multiplicity ◽  
Entire Energy ◽  
High Energy Collisions ◽  
The Mean ◽  
Hadronic Collisions ◽  
Remarkable Agreement

The semiempirical formulation of Ghosh et al. for the energy dependence of multiplicity in hadronic collisions has been applied to account for the experimental multiplicity data of π±p and K±p collisions. A remarkable agreement has been found over the entire energy range.

scholarly journals Test of the hadronic interaction models SIBYLL2.3, EPOS-LHC and QGSJETII- 04 with Tibet EAS core data

2019 ◽  
Vol 208 ◽  
pp. 08013
Author(s):  
M. Amenomori ◽  
X. J. Bi ◽  
D. Chen ◽  
T. L. Chen ◽  
W. Y. Chen ◽  
...  
Keyword(s):  
Experimental Data ◽  
Energy Region ◽  
Interaction Model ◽  
Systematic Errors ◽  
High Energy ◽  
Forward Region ◽  
Hadronic Interaction ◽  
Interaction Models ◽  
Air Shower ◽  
Shower Array

A hybrid experiment has been started by the ASγ experiment at Yangbajing (4300m a.s.l.) in Tibet since May 2009, that consists of a high-energy air-shower-core array (YAC-I) and a high-density air-shower array (Tibet-III). In this paper, we report our results to check the hadronic interaction models SIBYLL2.3, SIBYLL2.1, EPOS-LHC and QGSJETII-04 in the multi-tens TeV energy region using YAC-I+Tibet-III experimental data from May 2009 through January 2010. The effective live time is calculated as 106.05 days. The results show that the description of transverse momentum, inelastic cross-section and inelasticity for the 4 hadronic interaction models is consistent with YAC-I experimental data within 15% systematic errors range in the forward region below 100 TeV. Among them, the EPOS-LHC model is the best hadronic interaction model. Furthermore, we find that the H4a composition model is the best one below the 100 TeV energy region.

Tsallis nonextensive entropy and the multiplicity distributions in high energy leptonic collisions

2016 ◽  
Vol 25 (06) ◽  
pp. 1650041 ◽  
Author(s):  
S. Sharma ◽  
M. Kaur ◽  
Sandeep Kaur
Keyword(s):  
Experimental Data ◽  
Multiplicity Distribution ◽  
High Energy ◽  
New Approach ◽  
High Energies ◽  
Nonextensive Entropy ◽  
Tsallis Distribution ◽  
Multiplicity Distributions ◽  
Better Than

The nonextensive behavior of entropy is exploited to explain the regularity in multiplicity distributions in [Formula: see text] collisions at high energies. The experimental data are analyzed by using Tsallis [Formula: see text]-statistics. We propose a new approach of applying Tsallis [Formula: see text]-statistics, wherein the multiplicity distribution is divided into two components; two-jet and multijet components. A convoluted Tsallis distribution is fitted to the data. It is shown that this method gives the best fits which are several orders better than the conventional fit of Tsallis distribution.

scholarly journals INFLUENCE OF THE RESULTS OF UHECR DETECTION ON THE LHC EXPERIMENTS

2013 ◽  
Vol 53 (A) ◽  
pp. 707-711 ◽  
Author(s):  
Anatoly A. Petrukhin
Keyword(s):  
Experimental Data ◽  
Cosmic Rays ◽  
Energy Region ◽  
Center Of Mass ◽  
Cosmic Ray ◽  
Theoretical Models ◽  
Energy Interval ◽  
Mass System ◽  
New Approaches ◽  
Region 10

The cosmic ray energy region 10<sup>15</sup> ÷ 10<sup>17</sup>TeV corresponds to LHC energies 1 ÷ 14TeV in the center-of-mass system. The results obtained in cosmic rays (CR) in this energy interval can therefore be used for developing new approaches to the analysis of experimental data, for interpreting the results, and for planning new experiments. The main problem in cosmic ray investigations is the remarkable excess of muons, which increases with energy and cannot be explained by means of contemporary theoretical models. Some possible new explanations of this effect and other unusual phenomena observed in CR, and ways of searching for them in the LHC experiments are discussed.

Formulation of particle pseudo-rapidity (rapidity) distribution in high-energy pp collision and e+e– annihilation

2002 ◽  
Vol 80 (5) ◽  
pp. 533-540
Author(s):  
F -H Liu
Keyword(s):  
Experimental Data ◽  
High Energy ◽  
Rapidity Distribution ◽  
Cylinder Model ◽  
Rapidity Distributions ◽  
High Energy Collisions

The pseudorapidity (rapidity) distributions of particles produced in high-energy collisions are analyzed using the revised thermalized cylinder model. The calculated results are compared and found to be in agreement with the experimental data of pp collision and e+e– annihilation. PACS Nos.: 13.85-t, 13.75-n, 13.85Hd, 13.65+i

scholarly journals Self-organized criticality: a new approach to multihadron production

2020 ◽  
Vol 229 (22-23) ◽  
pp. 3497-3505
Author(s):  
Helmut Satz
Keyword(s):  
Statistical Physics ◽  
High Energy ◽  
New Approach ◽  
Self Organized ◽  
Self Organized Criticality ◽  
High Energy Collisions

AbstractWe apply the concept of self-organized criticality in statistical physics to the study of multihadron production in high energy collisions.

scholarly journals THE INTERNAL STRUCTURE OF JETS AT COLLIDERS: LIGHT AND HEAVY QUARK INCLUSIVE HADRONIC DISTRIBUTIONS

2011 ◽  
Vol 20 (07) ◽  
pp. 1616-1622
Author(s):  
REDAMY PEREZ-RAMOS
Keyword(s):  
Transverse Momentum ◽  
Heavy Quark ◽  
Momentum Distribution ◽  
Evolution Equations ◽  
Light Quark ◽  
High Energy ◽  
Charged Hadron ◽  
Transverse Momentum Distribution ◽  
Average Multiplicity ◽  
High Energy Collisions

In this paper, we report our results on charged hadron multiplicities of heavy quark initiated jets produced in high energy collisions. After implementing the so-called dead cone effect in QCD evolution equations, we find that the average multiplicity decreases significantly as compared to the massless case. Finally, we discuss the transverse momentum distribution of light quark initiated jets and emphasize the comparison between our predictions and CDF data.

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.

Mean charged hadron multiplicities in high-energy collisions

1976 ◽  
Vol 32 (1) ◽  
pp. 101-124 ◽  
Author(s):  
E. Albini ◽  
P. Capiluppi ◽  
G. Giacomelli ◽  
A. M. Rossi
Keyword(s):  
High Energy ◽  
Charged Hadron ◽  
High Energy Collisions
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