π−pInteractions at 205 GeV/c: Cross Sections and Charged-Particle Multiplicity

1973 ◽  
Vol 31 (20) ◽  
pp. 1271-1274 ◽  
Author(s):  
D. Bogert ◽  
R. Hanft ◽  
F. R. Huson ◽  
D. Ljung ◽  
C. Pascaud ◽  
...  
Keyword(s):  
Charged Particle ◽  
Cross Sections ◽  
Particle Multiplicity ◽  
Charged Particle Multiplicity

Average charged particle multiplicity and topological cross sections in and pp interactions

1972 ◽  
Vol 42 (4) ◽  
pp. 519-521 ◽  
Author(s):  
V.V. Ammosov ◽  
V.N. Boitsov ◽  
P.F. Ermolov ◽  
A.B. Fenyuk ◽  
P.A. Gorichev ◽  
...  
Keyword(s):  
Charged Particle ◽  
Cross Sections ◽  
Particle Multiplicity ◽  
Charged Particle Multiplicity

scholarly journals p pinteractions at 300 GeV/c: Measurement of the charged-particle multiplicity and the total and elastic cross sections

1974 ◽  
Vol 10 (7) ◽  
pp. 2080-2083 ◽  
Author(s):  
A. Firestone ◽  
V. Davidson ◽  
D. Lam ◽  
F. Nagy ◽  
C. Peck ◽  
...  
Keyword(s):  
Charged Particle ◽  
Cross Sections ◽  
Particle Multiplicity ◽  
Charged Particle Multiplicity

π−pinteractions at 360 GeV/c: Measurement of the total and elastic cross sections and the charged-particle multiplicity distribution

1976 ◽  
Vol 14 (11) ◽  
pp. 2902-2908 ◽  
Author(s):  
A. Firestone ◽  
E. W. Anderson ◽  
V. Chang ◽  
H. B. Crawley ◽  
W. J. Kernan ◽  
...  
Keyword(s):  
Charged Particle ◽  
Cross Sections ◽  
Multiplicity Distribution ◽  
Particle Multiplicity ◽  
Charged Particle Multiplicity

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 Study of charged-particle multiplicity fluctuations in pp collisions with Monte Carlo event generators at the LHC

2020 ◽  
Vol 29 (09) ◽  
pp. 2050074
Author(s):  
E. Shokr ◽  
A. H. El-Farrash ◽  
A. De Roeck ◽  
M. A. Mahmoud
Keyword(s):  
Charged Particle ◽  
Particle Production ◽  
Local Density ◽  
Particle Density ◽  
Hadron Collider ◽  
Center Of Mass ◽  
Monte Carlo Event ◽  
Particle Multiplicity ◽  
Charged Particle Multiplicity ◽  
Proton Proton

Proton–Proton ([Formula: see text]) collisions at the Large Hadron Collider (LHC) are simulated in order to study events with a high local density of charged particles produced in narrow pseudorapidty windows of [Formula: see text] = 0.1, 0.2, and 0.5. The [Formula: see text] collisions are generated at center of mass energies of [Formula: see text], [Formula: see text], [Formula: see text], and [Formula: see text] TeV, i.e., the energies at which the LHC has operated so far, using PYTHIA and HERWIG event generators. We have also studied the average of the maximum charged-particle density versus the event multiplicity for all events, using the different pseudorapidity windows. This study prepares for the multi-particle production background expected in a future search for anomalous high-density multiplicity fluctuations using the LHC data.

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