scholarly journals Nucleus?Nucleus Elastic Scattering at Ultra-high Energies

1984 ◽  
Vol 37 (3) ◽  
pp. 255 ◽  
Author(s):  
Yang-guo Li ◽  
Shui-yin Lo
Keyword(s):  
Elastic Scattering ◽  
Total Cross Section ◽  
Multiple Scattering ◽  
Cross Section ◽  
High Energy ◽  
Ultra High Energy ◽  
Reasonable Explanation ◽  
High Energies ◽  
Cern Experiment

Nucleus-nucleus elastic scattering at ultra-high energy is studied within the scheme of Glauber multiple scattering and also within the geometrical picture of the Chou-Yang model. Both models offer a reasonable explanation of a recent CERN experiment on a-a elastic scattering and their differences are discussed. Results are presented for (X-a elastic scattering at ultra-high energies, and for a-9Be, a_1 2C, a_1 60 and a_24Mg elastic scatterings at currently accessible energies. The A dependence of the total cross section is approximately An with n ~ 0�55.

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.

ELASTIC pd SCATTERING AT HIGH ENERGIES

1988 ◽  
Vol 03 (05) ◽  
pp. 1301-1319 ◽  
Author(s):  
V.M. BRAUN ◽  
L.G. DAKHNO ◽  
V.A. NIKONOV
Keyword(s):  
Experimental Data ◽  
Differential Cross Section ◽  
Multiple Scattering ◽  
Cross Section ◽  
Differential Cross ◽  
Scattering Theory ◽  
High Energy ◽  
Multiple Scattering Theory ◽  
High Energies

High energy differential pd cross section is calculated in the framework of the multiple scattering theory, inelastic correction included. Special attention is paid to the analysis of the calculation uncertainties. The results agree well with the experimental data obtained at ISR energies in the q2 range 0.06–1.05 (GeV/c) 2. The calculation accuracy is proved to be not worse than 10–20% at q2~0.2 (GeV/c) 2 and much better at small q2, namely, ~1% in the optical point. Prediction for the differential cross section at UNK energy E lab =3 TeV is given.

Status of the high-energy elastic scattering: Total cross-section, real part and dσ/dt

1994 ◽  
Vol 107 (10) ◽  
pp. 2103-2108 ◽  
Author(s):  
K. Kang ◽  
P. Valin ◽  
A. R. White
Keyword(s):  
Elastic Scattering ◽  
Total Cross Section ◽  
Cross Section ◽  
High Energy

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.

Small-x QCD and the ultra-high energy νN total cross section

1986 ◽  
Vol 167 (1) ◽  
pp. 103-107 ◽  
Author(s):  
Douglas W. McKay ◽  
John P. Ralston
Keyword(s):  
Total Cross Section ◽  
Cross Section ◽  
High Energy ◽  
Ultra High Energy ◽  
Small X

THE CURRENT STATUS OF HIGH ENERGY ELASTIC SCATTERING

1992 ◽  
Vol 07 (19) ◽  
pp. 4449-4476 ◽  
Author(s):  
MARTIN M. BLOCK ◽  
KYUNGSIK KANG ◽  
ALAN R. WHITE
Keyword(s):  
Elastic Scattering ◽  
Total Cross Section ◽  
Cross Section ◽  
High Energy ◽  
Current Status ◽  
Tevatron Collider ◽  
Diffractive Scattering

The recent total cross section, σtot, and ρ-value results from the Fermilab Tevatron Collider experiments,1,2 presented at the 4th “Blois” Workshop on Elastic and Diffractive Scattering, held at Elba in May 1991, provide a natural springboard from which to launch a focused review of the field.

scholarly journals Estimating the impact of the QCD dynamics on the determination of the high energy astrophysical neutrino flux

2021 ◽  
Vol 81 (6) ◽  
Author(s):  
Victor P. Gonçalves ◽  
Diego R. Gratieri ◽  
Alex S. C. Quadros
Keyword(s):  
Maximum Likelihood ◽  
Cross Section ◽  
Neutrino Flux ◽  
High Energy ◽  
Ultra High Energy ◽  
High Energies ◽  
Ultra High Energy Neutrinos ◽  
The Impact ◽  
Astrophysical Neutrino

AbstractThe number of ultra-high energy neutrinos arriving at IceCube depends on the energy dependence of the astrophysical neutrino flux and neutrino cross-section. In this paper, we investigate the impact of different assumptions for the description of the QCD dynamics at high energies on the determination of the normalization $$\Phi _{Astro}$$ Φ Astro and spectral index $$\gamma $$ γ of the astrophysical neutrino flux. The distribution of neutrino events at the IceCube is estimated considering the DGLAP, BFKL, CGC and BBMT approaches and the best estimates for $$\Phi _{Astro}$$ Φ Astro and $$\gamma $$ γ are determined using a maximum likelihood fit comparing the predictions with the distribution of observed events at IceCube. Moreover, we also investigate if the increase in the effective exposure time expected in IceCube-Gen2 will to allow us to disentangle the QCD dynamical effects from the description of the astrophysical neutrino flux.

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