Multiplicity Distributions in High Energy Hadron-Nucleus Collisions and the Mixed Two Component Model

1982 ◽  
Vol 67 (6) ◽  
pp. 2002-2005
Author(s):  
S. Date ◽  
K. K. Phua
Keyword(s):  
High Energy ◽  
Component Model ◽  
Two Component ◽  
Multiplicity Distributions ◽  
Energy Hadron

A two-component model for hadron production in high-energy pp collisions

1985 ◽  
Vol 89 (4) ◽  
pp. 353-380 ◽  
Author(s):  
H. Banerjee ◽  
T. De ◽  
D. Syam
Keyword(s):  
High Energy ◽  
Hadron Production ◽  
Component Model ◽  
Pp Collisions ◽  
Two Component

Statistical hadronization and multiplicities in high-energy hadron–nucleus collisions

2017 ◽  
Vol 26 (03) ◽  
pp. 1750006 ◽  
Author(s):  
S. Sharma ◽  
M. Kaur ◽  
S. Thakur
Keyword(s):  
Statistical Mechanics ◽  
Particle Production ◽  
High Energy ◽  
High Energies ◽  
Gamma Distributions ◽  
Charged Particle Production ◽  
Tsallis Distribution ◽  
Multiplicity Distributions ◽  
Statistical Hadronization ◽  
Energy Hadron

Concepts from statistical mechanics and ensemble theory are applied to study the characteristic properties of charged particle production in hadron–nucleus collisions at high energy. In the present study we utilize the predictions from different approaches using statistical mechanics. The Tsallis q-statistics is used to study the regularity in multiplicity distributions in hadron–nucleus collisions at high energies as one of the interesting options. Gamma distributions and a possible microcanonical generalization of Tsallis distribution have also been exploited to describe the data.

Multiplicity distributions in high-energy hadron-nucleus collisions. II. Phenomenology

1989 ◽  
Vol 39 (9) ◽  
pp. 2573-2585 ◽  
Author(s):  
Xin-nian Wang ◽  
Rudolph C. Hwa
Keyword(s):  
High Energy ◽  
Multiplicity Distributions ◽  
Energy Hadron

scholarly journals Multiplicity moments using Tsallis statistics in high-energy hadron–nucleus interactions

2020 ◽  
Vol 29 (04) ◽  
pp. 2050021
Author(s):  
S. Sharma ◽  
G. Chaudhary ◽  
K. Sandeep ◽  
A. Singla ◽  
M. Kaur
Keyword(s):  
High Energy ◽  
Fixed Target ◽  
Charged Multiplicity ◽  
Tsallis Statistics ◽  
Gamma Distributions ◽  
Scaling Hypothesis ◽  
Target Experiment ◽  
Multiplicity Distributions ◽  
Energy Hadron ◽  
Experimental Values

The study of higher-order moments of a distribution and its cumulants constitute a sensitive tool to investigate the correlations between the particle produced in high-energy interactions. In our previous work, we have used the Tsallis [Formula: see text] statistics, NBD, Gamma and shifted Gamma distributions to describe the multiplicity distributions in [Formula: see text]-nucleus and [Formula: see text]-nucleus fixed target interactions at various energies ranging from [Formula: see text][Formula: see text]GeV to 800[Formula: see text]GeV. In this study, we have extended our analysis by calculating the moments using the Tsallis model at these fixed target experiment data. By using the Tsallis model, we have also calculated the average charged multiplicity and its dependence on energy. It is found that the average charged multiplicity and moments predicted by the Tsallis statistics are in much agreement with the experimental values and indicates the success of the Tsallis model on data from visual detectors. The study of moments also illustrates that KNO scaling hypothesis holds good at these energies.

Scaling of multiplicity distributions in high energy hadron collisions

1972 ◽  
Vol 40 ◽  
pp. 317-334 ◽  
Author(s):  
Z. Koba ◽  
H.B. Nielsen ◽  
P. Olesen
Keyword(s):  
High Energy ◽  
Multiplicity Distributions ◽  
Energy Hadron

Multiplicity distributions in high-energy hadron-nucleus collisions. I. Formalism

1989 ◽  
Vol 39 (9) ◽  
pp. 2561-2572 ◽  
Author(s):  
Rudolph C. Hwa ◽  
Xin-nian Wang
Keyword(s):  
High Energy ◽  
Multiplicity Distributions ◽  
Energy Hadron

scholarly journals Two-Component Model and Geometric Picture for High Energy P-P Collisions

1979 ◽  
Vol 61 (1) ◽  
pp. 151-164
Author(s):  
N. Hashimoto
Keyword(s):  
High Energy ◽  
Component Model ◽  
Two Component ◽  
Geometric Picture

Multiplicity distributions and normalized cumulants of low- and high-energy hadron-hadron scattering. — II

1977 ◽  
Vol 38 (1) ◽  
pp. 38-49 ◽  
Author(s):  
M. Garetto ◽  
A. Giovannini ◽  
E. Calligarich ◽  
G. Cecchet ◽  
R. Dolfini ◽  
...  
Keyword(s):  
High Energy ◽  
Multiplicity Distributions ◽  
Energy Hadron

scholarly journals Testing two-component models on very high-energy gamma-ray-emitting BL Lac objects

2020 ◽  
Vol 640 ◽  
pp. A132
Author(s):  
◽  
V. A. Acciari ◽  
S. Ansoldi ◽  
L. A. Antonelli ◽  
A. Arbet Engels ◽  
...  
Keyword(s):  
Gamma Ray ◽  
High Energy ◽  
Component Model ◽  
Bl Lac Objects ◽  
Two Component ◽  
Very High Energy ◽  
Component Models ◽  
Very High ◽  
Optical Polarisation

Context. It has become evident that one-zone synchrotron self-Compton models are not always adequate for very high-energy (VHE) gamma-ray-emitting blazars. While two-component models perform better, they are difficult to constrain due to the large number of free parameters. Aims. In this work, we make a first attempt at taking into account the observational constraints from very long baseline interferometry (VLBI) data, long-term light curves (radio, optical, and X-rays), and optical polarisation to limit the parameter space for a two-component model and test whether or not it can still reproduce the observed spectral energy distribution (SED) of the blazars. Methods. We selected five TeV BL Lac objects based on the availability of VHE gamma-ray and optical polarisation data. We collected constraints for the jet parameters from VLBI observations. We evaluated the contributions of the two components to the optical flux by means of decomposition of long-term radio and optical light curves as well as modelling of the optical polarisation variability of the objects. We selected eight epochs for these five objects based on the variability observed at VHE gamma rays, for which we constructed the SEDs that we then modelled with a two-component model. Results. We found parameter sets which can reproduce the broadband SED of the sources in the framework of two-component models considering all available observational constraints from VLBI observations. Moreover, the constraints obtained from the long-term behaviour of the sources in the lower energy bands could be used to determine the region where the emission in each band originates. Finally, we attempt to use optical polarisation data to shed new light on the behaviour of the two components in the optical band. Our observationally constrained two-component model allows explanation of the entire SED from radio to VHE with two co-located emission regions.

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