The pomeron-particle total cross section and diffractive production of showers at very high energies

1974 ◽  
Vol 75 (3) ◽  
pp. 471-482 ◽  
Author(s):  
A.B. Kaidalov ◽  
K.A. Ter-martirosyan
Keyword(s):  
Total Cross Section ◽  
Cross Section ◽  
High Energies ◽  
Diffractive Production ◽  
Very High

INSTANTON-INDUCED CROSS-SECTION AT HIGH ENERGIES: LEADING ORDER AND BEYOND

1990 ◽  
Vol 05 (24) ◽  
pp. 1983-1991 ◽  
Author(s):  
S. YU. KHLEBNIKOV ◽  
V. A. RUBAKOV ◽  
P. G. TINYAKOV
Keyword(s):  
Total Cross Section ◽  
Explicit Form ◽  
Cross Section ◽  
High Energy ◽  
Electroweak Theory ◽  
Leading Order ◽  
Instanton Action ◽  
High Energies ◽  
High Energy Collisions ◽  
The One

We study the total cross-section of high energy collisions in the one-instanton sector of purely bosonic theories with instantons. We find that in the limit g2 → 0, E/E sph = fixed , the leading behavior of the total cross-section is σ lot ~ exp [1/g2(−2S0 + F(E/E sph ))], where S0 is the instanton action. In the electroweak theory at E/E sph ≪ 1, the function F(E/E sph ) is determined by the gauge boson part of the instanton configuration and its explicit form is found.

scholarly journals A modification potential method for total cross section calculation of electron scattering by molecules at medium and high energies

2006 ◽  
Vol 55 (8) ◽  
pp. 4096
Author(s):  
Shi De-Heng ◽  
Sun Jin-Feng ◽  
Liu Yu-Fang ◽  
Ma Heng ◽  
Zhu Zun-Lue
Keyword(s):  
Total Cross Section ◽  
Cross Section ◽  
Electron Scattering ◽  
Potential Method ◽  
High Energies

scholarly journals Taming the Energy Rise of the Total Proton-Proton Cross-Section

Universe ◽  
2019 ◽  
Vol 5 (5) ◽  
pp. 106 ◽  
Author(s):  
Sergey Ostapchenko ◽  
Marcus Bleicher
Keyword(s):  
Cross Section ◽  
Cross Sections ◽  
Strong Increase ◽  
Momentum Fraction ◽  
Proton Proton ◽  
High Energies ◽  
Model Predictions ◽  
Potential Impact ◽  
Very High

Steep rise of parton densities in the limit of small parton momentum fraction x poses a challenge for describing the observed energy-dependence of the total and inelastic proton-proton cross sections σ p p tot / inel : considering a realistic parton spatial distribution, one obtains a too-strong increase of σ p p tot / inel in the limit of very high energies. We discuss various mechanisms which allow one to tame such a rise, paying special attention to the role of parton-parton correlations. In addition, we investigate a potential impact on model predictions for σ p p tot, related to dynamical higher twist corrections to parton-production processes.

DYNAMICAL STRING MODEL ON THE BASIS OF A SEMICLASSICAL UNIFIED STRING-FLUX TUBE MODEL

1991 ◽  
Vol 06 (25) ◽  
pp. 4395-4435 ◽  
Author(s):  
K. SAILER ◽  
TH. SCHÖNFELD ◽  
ZS. SCHRAM ◽  
A. SCHÄFER ◽  
W. GREINER
Keyword(s):  
Numerical Simulation ◽  
Total Cross Section ◽  
Cross Section ◽  
Flux Tube ◽  
String Model ◽  
High Energy ◽  
Tube Model ◽  
Flux Tubes ◽  
Hadron Interaction ◽  
High Energies

We present the dynamical string model of high-energy hadronic processes, developed by us recently. To describe the dynamical aspects of the decay of hadrons and those of the hadron-hadron interaction correctly, a semiclassical unified string-flux tube model of hadrons is used. Specific aspects of this model are discussed: (i) the transverse extension of gluon flux tubes, (ii) the decay of highly excited flux tubes, (iii) the gluon structure functions of hadronic flux tubes and their connection with the total cross section of the flux tube-flux tube interaction at high energies. The dynamical string model is applied to the numerical simulation of e+e− annihilation and pp collision at high energies.

UNDERSTANDING THE NATURE OF PROTON–AIR CROSS-SECTIONS AT VERY HIGH ENERGIES AND THE IMPLICATIONS

2001 ◽  
Vol 16 (37) ◽  
pp. 2387-2397 ◽  
Author(s):  
BHASKAR DE ◽  
S. BHATTACHARYYA ◽  
P. GUPTAROY
Keyword(s):  
Cross Section ◽  
Cross Sections ◽  
Cross Section Data ◽  
Section Data ◽  
High Energies ◽  
Production Models ◽  
Simulation Based ◽  
Effective Role ◽  
Very High

The purpose of this paper is to focus on the possible effective role of two relatively less-known models in analyzing comprehensively the very up-to-date data on proton–air inelastic cross-sections at high and ultra high energies. The standard versions of all the familiar simulation-based multiparticle production models, which nowadays normally claim front-ranking positions, address on the contrary, only a small part of the cross-section data for a very limited or sectional range of energy values. Against this background, the relevance and impact of the present study have finally been highlighted.

2S Excitation of atomic hydrogen by electron impact at high energies

1983 ◽  
Vol 61 (5) ◽  
pp. 748-752 ◽  
Author(s):  
N. Saha
Keyword(s):  
Differential Cross Section ◽  
Total Cross Section ◽  
Electron Impact ◽  
Cross Section ◽  
Differential Cross ◽  
Atomic Hydrogen ◽  
Excitation Cross Section ◽  
High Energies ◽  
Comparison Of The Results ◽  
Theoretical Results

The 2S excitation cross section of atomic hydrogen by electron impact at high energies has been calculated following the method of Das. Comparison of the results for the differential cross section with other theoretical results, and comparison of the results for the total cross section with those of other theories and experiments, shows that the results of the present calculations are fairly accurate.

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