Growth of the average multiplicity of particles in high-energy collisions

1993 ◽  
Vol 47 (9) ◽  
pp. 4150-4153 ◽  
Author(s):  
Saul Barshay ◽  
Patrick Heiliger
Keyword(s):  
High Energy ◽  
Average Multiplicity ◽  
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.

scholarly journals Strangeness Suppression and Color Deconfinement

2018 ◽  
Vol 171 ◽  
pp. 02005
Author(s):  
Helmut Satz
Keyword(s):  
Initial Temperature ◽  
Strange Particle ◽  
High Energy ◽  
Universal Function ◽  
Ideal Gas ◽  
Entropy Density ◽  
Suppression Factor ◽  
Thermal Medium ◽  
High Energy Collisions ◽  
Hadronic Resonances

The relative multiplicities for hadron production in different high energy collisions are in general well described by an ideal gas of all hadronic resonances, except that under certain conditions, strange particle rates are systematically reduced. We show that the suppression factor γs, accounting for reduced strange particle rates in pp, pA and AA collisions at different collision energies, becomes a universal function when expressed in terms of the initial entropy density s0 or the initial temperature T of the produced thermal medium. It is found that γs increases from about 0.5 to 1.0 in a narrow temperature range around the quark-hadron transition temperature Tc ≃ 160 MeV. Strangeness suppression thus disappears with the onset of color deconfinement; subsequently, full equilibrium resonance gas behavior is attained.

scholarly journals Absolute cross sections for the dissociation of hydrogen cluster ions in high-energy collisions with helium atoms

2006 ◽  
Vol 73 (2) ◽  
Author(s):  
S. Eden ◽  
J. Tabet ◽  
K. Samraoui ◽  
S. Louc ◽  
B. Farizon ◽  
...  
Keyword(s):  
Cross Sections ◽  
High Energy ◽  
Cluster Ions ◽  
Helium Atoms ◽  
High Energy Collisions

Fluctuations in High-Energy Collisions: Intermittency for Nonzero Resolution in Rapidity

1988 ◽  
Vol 7 (2) ◽  
pp. 125-129 ◽  
Author(s):  
A Bialas ◽  
K Fialkowski ◽  
R Peschanski
Keyword(s):  
High Energy ◽  
High Energy Collisions
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