scholarly journals Behavior of the pp diffractive cross section with bombarding energy

1974 ◽  
Author(s):  
G.C. Bolon ◽  
L.S. Osborne
Keyword(s):  
Cross Section ◽  
Diffractive Cross Section ◽  
Bombarding Energy

Production efficiency and radioisotopic purity of 99mTc formed using the (p,2n) reaction on a highly enriched 100Mo target

2017 ◽  
Vol 32 (17) ◽  
pp. 1740012
Author(s):  
Katarzyna Szkliniarz ◽  
Mateusz Sitarz ◽  
Jerzy Jastrzębski ◽  
Jarosław Choiński ◽  
Andrzej Jakubowski ◽  
...  
Keyword(s):  
Energy Range ◽  
Cross Section ◽  
Production Efficiency ◽  
Irradiation Time ◽  
Thick Target ◽  
Bombarding Energy

The [Formula: see text]Tc isomer was produced using the [Formula: see text] reaction on highly enriched [Formula: see text]Mo samples. The Thick Target Yields were determined in the energy range from 16 MeV to 26 MeV and compared with the values calculated using the most recent cross-section recommendations from the literature. The generated impurities were also determined. It was shown that for 99.815 ± 0.010% enriched samples, only reactions induced on [Formula: see text]Mo are of importance. The ratio of the number of atoms of [Formula: see text]Tc to all produced Tc nuclei was studied as a function of irradiation time and bombarding energy.

The cross-section and angular distribution of the D-D reactions below 50 keV

1953 ◽  
Vol 216 (1124) ◽  
pp. 57-65 ◽  
Keyword(s):  
Angular Distribution ◽  
Total Cross Section ◽  
Cross Section ◽  
Proportional Counter ◽  
Angular Distributions ◽  
Asymmetry Coefficient ◽  
Gas Target ◽  
The Asymmetry ◽  
The Cross ◽  
Bombarding Energy

A thin gas target was used and the particles from the reactions were detected by a proportional counter. The results show that the total cross-section for the two reactions is the same to within 1%, but that the angular distributions of the products are significantly different. The asymmetry coefficient for the reaction D( d , n ) 3 He is given by 0·31 + 0·0058 E , compared with 0·13 + 0·0047 E for reaction D( d , p ) 3 H, where E is the bombarding energy in kilovolts.

scholarly journals Diffractive Production of Quarkonium in p-A Collisions at LHC

2017 ◽  
Vol 45 ◽  
pp. 1760063
Author(s):  
Érison S. Rocha ◽  
Magno V. T. Machado
Keyword(s):  
Cross Section ◽  
Hadron Collider ◽  
Meson Production ◽  
Inclusive Cross Section ◽  
Distribution Functions ◽  
Parton Distribution Functions ◽  
Psi Meson ◽  
Diffractive Cross Section ◽  
Diffractive Production ◽  
Order Of Magnitude

In the present work, we investigated the exclusive diffractive production of charmonium in pronton-nucleus collisions at the Large Hadron Collider (LHC) energies. Such exclusive production reactions possess a cleaner experimental signal than inclusive production once it is characterized by low multiplicity of particles between final produced state and the incident protons of collider beam. The considered theoretical framework was the perturbative model of Quantum Cromodynamics (QCD) for the Pomeron exchange. In particular, we have used the resolved Pomeron model which depends on the Pomeron flux and Pomeron parton distribution functions. The main goal is to provide predictions for the single diffractive cross section for the J/Psi meson production at the energies of 5.02 TeV and 8.8 TeV. We have shown that a measurement is feasible as the order of magnitude is 400 microbarns even absorption corrections. Furthermore, we analyze the ratio of the diffractive to inclusive cross section which allows theoretical uncertainties to be canceled, mostly those associated to approximations performed in inclusive case.

scholarly journals A PARAMETRIZATION OF THE INCLUSIVE DIFFRACTIVE CROSS-SECTION AT HERA

1999 ◽  
Vol 14 (23) ◽  
pp. 1583-1598 ◽  
Author(s):  
JOCHEN BARTELS ◽  
CHRISTOPHE ROYON
Keyword(s):  
Cross Section ◽  
Diffractive Cross Section

A recently proposed parametrization for the deep inelastic diffractive cross-section is used to describe the H1 '94 data. We find two possible solutions and discuss them in details.

Triple Pomeron coupling and pion inclusive scattering

1980 ◽  
Vol 58 (4) ◽  
pp. 455-462
Author(s):  
R. Migneron ◽  
J. L. Robinson
Keyword(s):  
Cross Section ◽  
Single Particle ◽  
Reliable Method ◽  
Diffractive Cross Section ◽  
Pomeron Coupling ◽  
Inclusive Reaction ◽  
Inclusive Scattering ◽  
The Cross ◽  
Good Agreement

A characteristic rise in the cross section near x = 1 has been reported for the single particle inclusive reaction π−p → π−X at Fermilab energies. Factorizable Regge amplitudes are used with a well-established analysis of the pp → pX peak to construct a parametrization of the triple-Regge couplings with αP(0) > 1 and to give a triple-Regge description of the meson + proton → meson + X cross section. Good agreement with the π−p → π−X data at 147 GeV/c is obtained and the peak is dominated by the triple-Pomeron component. This approach provides a reliable method for obtaining an estimate of the non-diffractive component. The inelastic diffractive cross section rises with energy and is found to account for most of the observed rise in σtot(π±p). The procedure is extended to K±p → K±X.

Differential Cross Section for ReactionD(d,n)He3for 10-Mev Bombarding Energy

1949 ◽  
Vol 75 (5) ◽  
pp. 894-894 ◽  
Author(s):  
K. W. Erickson ◽  
J. L. Fowler ◽  
E. J. Stovall
Keyword(s):  
Differential Cross Section ◽  
Cross Section ◽  
Differential Cross ◽  
Bombarding Energy

scholarly journals Cross Section Measurements in the 54Cr(p, ?)55Mn Reaction

1979 ◽  
Vol 32 (4) ◽  
pp. 335 ◽  
Author(s):  
R. J. Wilkinson ◽  
A S. R. Kennett ◽  
A Z. E. Switkowski ◽  
D. G. SargoodA and F. M. MannC
Keyword(s):  
Cross Section ◽  
Cross Sections ◽  
Reaction Cross Section ◽  
Proton Energy ◽  
Gamma Ray ◽  
Reaction Cross ◽  
Model Calculations ◽  
Global Parameter ◽  
Dramatic Effect ◽  
Bombarding Energy

Cross sections for production of individual y rays in the 54Cr(p, y)55Mn reaction have been measured over the proton energy range 1�0-3�8 MeV. Gamma-ray yields are observed to fall by factors of between 5 and 10 at the crossing of the neutron threshold for a proton bombarding energy of 2�2 MeV. Statistical model calculations with global parameter sets successfully account for the dramatic effect of neutron competition on the (p, y) cross section, and at the same time correctly predict the 54Cr(p,n)54Mn reaction cross section.

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