scholarly journals Elastic and Electromagnetic Proton Interactions at 3 TeV

1965 ◽  
Vol 18 (3) ◽  
pp. 277 ◽  
Author(s):  
CBA McCusker ◽  
LS Peak ◽  
RLS Woolcott
Keyword(s):  
Cross Section ◽  
Nuclear Emulsion ◽  
Average Energy ◽  
Elastic Cross Section ◽  
Proton Proton ◽  
Line Scan ◽  
Elastic Scatter

In the present paper we present the results of a line scan, in nuclear emulsion, of protons of average energy 3 TeV. No elastic scatters were detected in the scanned length of 594 cm. We calculate the probability of detecting an elastic scatter in emulsion, and hence that the proton-proton elastic cross section at 3 TeV is :$ 5 mbn.

scholarly journals ELASTIC SCATTERING OF PROTONS FROM $\sqrt{s} = 23.5~{\rm GeV}$ to 7 TeV FROM A GENERALIZED BIALAS–BZDAK MODEL

2014 ◽  
Vol 29 (02) ◽  
pp. 1450019 ◽  
Author(s):  
T. CSÖRGŐ ◽  
F. NEMES
Keyword(s):  
Elastic Scattering ◽  
Total Cross Section ◽  
Cross Section ◽  
Scattering Amplitude ◽  
Elastic Cross Section ◽  
Forward Scattering Amplitude ◽  
Proton Proton ◽  
Elastic Proton ◽  
Model Independent ◽  
Total P

The Bialas–Bzdak model of elastic proton–proton scattering is generalized to the case when the real part of the parton–parton level forward scattering amplitude is nonvanishing. Such a generalization enables the model to describe well the dip region of the differential cross-section of elastic scattering at the intersecting storage rings (ISR) energies, and improves significantly the ability of the model to describe also the recent TOTEM data at [Formula: see text] LHC energy. Within this framework, both the increase of the total cross-section, as well as the decrease of the location of the dip with increasing colliding energies, is related to the increase of the quark–diquark distance and to the increase of the "fragility" of the protons with increasing energies. In addition, we present and test the validity of two new phenomenological relations: one of them relates the total p+p cross-section to an effective, model-independent proton radius, while the other relates the position of the dip in the differential elastic cross-section to the measured value of the total cross-section.

Determination of the proton-proton elastic cross section at 30 GeV center of mass energy

1971 ◽  
Vol 35 (4) ◽  
pp. 361-364 ◽  
Author(s):  
M. Holder ◽  
E. Radermacher ◽  
A. Staude ◽  
G. Barbiellini ◽  
P. Darriulat ◽  
...  
Keyword(s):  
Cross Section ◽  
Center Of Mass ◽  
Elastic Cross Section ◽  
Mass Energy ◽  
Proton Proton ◽  
Center Of Mass Energy

scholarly journals PROBING THE MOMENTUM-DEPENDENT MEDIUM MODIFICATIONS OF THE NUCLEON–NUCLEON ELASTIC CROSS SECTION

2010 ◽  
Vol 25 (09) ◽  
pp. 669-678 ◽  
Author(s):  
QINGFENG LI ◽  
CAIWAN SHEN ◽  
M. DI TORO
Keyword(s):  
Cross Section ◽  
Cross Sections ◽  
Beam Energy ◽  
Transport Model ◽  
Nucleon Nucleon ◽  
Elastic Cross Section ◽  
Momentum Dependence ◽  
Proton Proton ◽  
Medium Modifications ◽  
Splitting Effect

The momentum dependence of the medium modifications on nucleon–nucleon elastic cross sections is investigated with the microscopic transport model UrQMD. The semi-peripheral Au + Au collision at the beam energy Eb = 400A MeV is adopted as an example. It is found that uncertainties of the momentum dependence on medium modifications of cross sections visibly influence the yield and collective flow distributions of free nucleons. In these observables, the elliptic flow is sensitively dependent on detailed forms of the momentum dependence. However, it is weakly influenced by the splitting effect of the neutron–neutron and proton–proton cross sections.

Elastic Scattering in Electron Microscopy

1973 ◽  
Vol 31 ◽  
pp. 252-253
Author(s):  
J. Langmore ◽  
M. Isaacson ◽  
J. Wall ◽  
A. V. Crewe
Keyword(s):  
Electron Microscopy ◽  
Elastic Scattering ◽  
Cross Section ◽  
Quantum Noise ◽  
Dark Field ◽  
Elastic Cross Section ◽  
Biological Molecules ◽  
Dark Field Microscopy ◽  
Field Systems ◽  
Effects Of Radiation

High resolution dark field microscopy is becoming an important tool for the investigation of unstained and specifically stained biological molecules. Of primary consideration to the microscopist is the interpretation of image Intensities and the effects of radiation damage to the specimen. Ignoring inelastic scattering, the image intensity is directly related to the collected elastic scattering cross section, σɳ, which is the product of the total elastic cross section, σ and the eficiency of the microscope system at imaging these electrons, η. The number of potentially bond damaging events resulting from the beam exposure required to reduce the effect of quantum noise in the image to a given level is proportional to 1/η. We wish to compare η in three dark field systems.

Measurements of the proton-proton total cross section and small angle elastic scattering at ISR energies

1978 ◽  
Vol 141 (1-2) ◽  
pp. 1-28 ◽  
Author(s):  
L. Baksay ◽  
L. Baum ◽  
A. Böhm ◽  
A. Derevshikov ◽  
G. de Zorzi ◽  
...  
Keyword(s):  
Elastic Scattering ◽  
Total Cross Section ◽  
Cross Section ◽  
Small Angle ◽  
Proton Proton
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