scholarly journals CHARGED PARTICLES PRODUCED IN QUARK AND GLUON JETS IN PROTON-PROTON COLLISIONS

2011 ◽  
Vol 20 (07) ◽  
pp. 1583-1587
Author(s):  
SONA POCHYBOVA
Keyword(s):  
Particle Production ◽  
Current Knowledge ◽  
Charged Particles ◽  
Minimum Bias ◽  
Proton Proton ◽  
Proton Collisions ◽  
Hadron Spectra ◽  
Gluon Jets ◽  
Proton Proton Collisions ◽  
Existing Data

The study of particle production inside jets makes it possible to address the fragmentation properties of the leading parton depending on its flavour. We study the spectra of K, p and π production in minimum bias (inelastic, non- diffractive), two- and three-jet events at RHIC, Tevatron and LHC energies. To address the properties of quark and gluon jets, different production channels are investigated. We present MC estimate for the contribution of quark and gluon jets to individual hadron spectra, that can be compared to experimental results and test our current knowledge of the physics behind particle production inside jets. Where possible, we cross-check our results with existing data and further extend the study to higher energies.

scholarly journals Multiplicity dependence of (multi-)strange hadron production in proton-proton collisions at $$\sqrt{s}$$ = 13 TeV

2020 ◽  
Vol 80 (2) ◽  
Author(s):  
S. Acharya ◽  
◽  
D. Adamová ◽  
S. P. Adhya ◽  
A. Adler ◽  
...  
Keyword(s):  
Charged Particle ◽  
Charged Particles ◽  
General Purpose ◽  
Particle Multiplicity ◽  
Charged Particle Multiplicity ◽  
Production Rates ◽  
Proton Proton ◽  
Proton Collisions ◽  
Strange Hadron ◽  
Proton Proton Collisions

Abstract The production rates and the transverse momentum distribution of strange hadrons at mid-rapidity ($$\left| y\right| < 0.5$$y<0.5) are measured in proton-proton collisions at $$\sqrt{s}$$s = 13 TeV as a function of the charged particle multiplicity, using the ALICE detector at the LHC. The production rates of $$\mathrm{K}^{0}_{S}$$KS0, $$\Lambda $$Λ, $$\Xi $$Ξ, and $$\Omega $$Ω increase with the multiplicity faster than what is reported for inclusive charged particles. The increase is found to be more pronounced for hadrons with a larger strangeness content. Possible auto-correlations between the charged particles and the strange hadrons are evaluated by measuring the event-activity with charged particle multiplicity estimators covering different pseudorapidity regions. When comparing to lower energy results, the yields of strange hadrons are found to depend only on the mid-rapidity charged particle multiplicity. Several features of the data are reproduced qualitatively by general purpose QCD Monte Carlo models that take into account the effect of densely-packed QCD strings in high multiplicity collisions. However, none of the tested models reproduce the data quantitatively. This work corroborates and extends the ALICE findings on strangeness production in proton-proton collisions at 7 TeV.

scholarly journals RENORMALIZATION GROUP EVOLUTION OF MULTI-GLUON CORRELATORS IN HIGH ENERGY QCD

2012 ◽  
Vol 20 ◽  
pp. 214-221
Author(s):  
JAMAL JALILIAN-MARIAN
Keyword(s):  
Particle Production ◽  
High Energy ◽  
Forward Rapidity ◽  
Proton Proton ◽  
Proton Collisions ◽  
Angular Correlations ◽  
Energy Proton ◽  
Group Evolution ◽  
Proton Proton Collisions ◽  
Made In

Forward rapidity di-hadron azimuthal angular correlations in high energy proton-nucleus and proton-proton collisions are sensitive to quadrupoles; traceless correlator of 4 Wilson lines whereas single inclusive particle production iNVOLVES only dipoles, traceless correlator of 2 Wilson lines. We discuss the progress made in understanding the energy (rapidity) evolution of the quadrupole as well as its various limits.

scholarly journals Neutral strange particle production in proton-proton collisions at $$\sqrt s = 63$$ GeV

1982 ◽  
Vol 12 (3) ◽  
pp. 217-224 ◽  
Author(s):  
D. Drijard ◽  
H. G. Fischer ◽  
H. Frehse ◽  
P. Hanke ◽  
P. G. Innocenti ◽  
...  
Keyword(s):  
Particle Production ◽  
Strange Particle ◽  
Proton Proton ◽  
Proton Collisions ◽  
Strange Particle Production ◽  
Proton Proton Collisions

scholarly journals Transverse momentum spectra of charged particles in proton–proton collisions at s=900 GeV with ALICE at the LHC

2010 ◽  
Vol 693 (2) ◽  
pp. 53-68 ◽  
Author(s):  
K. Aamodt ◽  
N. Abel ◽  
U. Abeysekara ◽  
A. Abrahantes Quintana ◽  
A. Abramyan ◽  
...  
Keyword(s):  
Transverse Momentum ◽  
Charged Particles ◽  
Proton Proton ◽  
Proton Collisions ◽  
Momentum Spectra ◽  
Transverse Momentum Spectra ◽  
Proton Proton Collisions
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