Very-High-Energy Limit of Proton-Proton Scattering

1970 ◽  
Vol 2 (3) ◽  
pp. 572-577 ◽  
Author(s):  
A. O. Barut ◽  
W. Plywaski
Keyword(s):  
High Energy ◽  
Proton Scattering ◽  
Energy Limit ◽  
Proton Proton ◽  
High Energy Limit ◽  
Very High Energy ◽  
Very High

scholarly journals Inelastic Proton‐Proton Scattering at Very High Energy

1971 ◽  
Author(s):  
L. G. Ratner ◽  
R. J. Ellis ◽  
G. Vannini ◽  
B. A. Babcock ◽  
A. D. Krisch ◽  
...  
Keyword(s):  
High Energy ◽  
Proton Scattering ◽  
Proton Proton ◽  
Very High Energy ◽  
Very High

scholarly journals QGSJET-III model: physics and preliminary results

2019 ◽  
Vol 208 ◽  
pp. 11001 ◽  
Author(s):  
Sergey Ostapchenko
Keyword(s):  
High Energy ◽  
Previous Model ◽  
Energy Limit ◽  
High Energy Limit ◽  
New Model ◽  
Preliminary Results ◽  
Model Version ◽  
Power Corrections ◽  
Very High Energy ◽  
Very High

We discuss in some detail the physics content of the new model, QGSJET-III-01, focusing on major problems related to the treatment of semihard processes in the very high energy limit. A special attention has been payed to the main improvement, compared to the QGSJET-II model, which is related to a phenomenological treatment of leading power corrections corresponding to final parton rescattering off soft gluons. In particular, this allowed us to use a twice smaller separation scale between the soft and hard parton physics, compared to the previous model version, QGSJET-II-04. Preliminary results obtained with the new model are also presented.

ON MULTIPLICITY DISTRIBUTIONS

1996 ◽  
Vol 11 (34) ◽  
pp. 2681-2692 ◽  
Author(s):  
DING-WEI HUANG
Keyword(s):  
Multiplicity Distribution ◽  
Negative Binomial ◽  
High Energy ◽  
Energy Limit ◽  
High Energy Limit ◽  
Multiple Production ◽  
Very High Energy ◽  
Multiplicity Distributions ◽  
Very High ◽  
New Distribution

We show that four different approaches in multiple production give exactly the same multiplicity distribution. Various experimental data can be well described by this new multiplicity distribution. We compare this new distribution to the negative binomial distribution. The restoration of KNO scaling at the very high energy limit is discussed. A nonvanishing value of the scaled multiplicity distribution Ψ(z) at z=0 is predicted.

scholarly journals Highest energy proton–nucleus cross-sections

2018 ◽  
Vol 33 (40) ◽  
pp. 1850242 ◽  
Author(s):  
L. Stodolsky
Keyword(s):  
Cosmic Rays ◽  
Cross Sections ◽  
High Energy ◽  
High Energy Proton ◽  
Proton Proton ◽  
Energy Proton ◽  
Black Disc ◽  
Simple Generalization ◽  
Very High Energy ◽  
Very High

The description of very high energy proton–proton cross-sections in terms of a “black disc” with an “edge” allows a simple generalization to highest energy proton–nucleus cross-sections. This results in a leading ln2W term and a ln W term whose coefficient depends linearly on the radius of the nucleus (W the c.m. energy). The necessary parameters are determined from the fits to p–p data. Since the coefficient of the ln W term is rather large, it is doubtful that the regime of ln2W dominance can be reached with available energies in accelerators or cosmic rays. However, the ln W term can be relevant for highest energy cosmic rays in the atmosphere, where a large increase for the cross-section on nitrogen is expected. Tests of the theory should be possible by studying the coefficient of ln W at p-nucleus colliders.

scholarly journals Investigating the Soft Processes within the QCD Color Dipole Picture

2019 ◽  
Vol 64 (8) ◽  
pp. 705 ◽  
Author(s):  
M. V. T. Machado
Keyword(s):  
Cross Sections ◽  
High Energy ◽  
Energy Limit ◽  
Proton Proton ◽  
Proton Collisions ◽  
High Energy Limit ◽  
Color Dipole ◽  
Soft Interactions ◽  
Soft Processes ◽  
Dipole Picture

We consider the QCD parton saturation models to describe the soft interactions at the high-energy limit. The total and elastic cross-sections, as well as the elastic slope parameter, are obtained for proton-proton and pion-proton collisions and compared to recent experimental results.

scholarly journals Very high energy proton proton interactions: exploratory survey in a bubble chamber

1970 ◽  
Author(s):  
F. J. Loeffler ◽  
V. E. Barnes ◽  
D. D. Carmony ◽  
R. S. Christian ◽  
J. A. Gaidos ◽  
...  
Keyword(s):  
Bubble Chamber ◽  
High Energy ◽  
High Energy Proton ◽  
Proton Proton ◽  
Energy Proton ◽  
Exploratory Survey ◽  
Very High Energy ◽  
Very High
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