scholarly journals Test of Time-Reversal Symmetry in the Proton-Deuteron Scattering

2016 ◽  
Vol 40 ◽  
pp. 1660080 ◽  
Author(s):  
Yu. N. Uzikov ◽  
A. A. Temerbayev
Keyword(s):  
Cross Section ◽  
Time Reversal ◽  
Meson Exchange ◽  
Deuteron Scattering ◽  
Glauber Theory ◽  
Polarized Proton ◽  
Different Types ◽  
Cross Section Formula ◽  
Time Invariance ◽  
Integrated Cross Section

The integrated cross section [Formula: see text] for a special type of double polarized proton-deuteron scattering constitutes a null test for time-invariance violating but P-parity conserving effects. Using Glauber theory for the [Formula: see text] elastic scattering and different types of phenomenological T-odd P-even NN-interactions we show that the contribution of the lowest mass meson exchange, i.e. the [Formula: see text]-meson, to the null-test signal [Formula: see text] vanishes. Variation of the cross section [Formula: see text] due to strong hadronic and Coulomb interaction is studied and its energy dependence is calculated in the GeV region.

scholarly journals Search for time-reversal-invariance violation in double polarized antiproton-deuteron scattering

2018 ◽  
Vol 181 ◽  
pp. 01015
Author(s):  
Yuriy Uzikov ◽  
Johann Haidenbauer
Keyword(s):  
Time Reversal ◽  
Test Signal ◽  
Time Reversal Invariance ◽  
Tensor Polarization ◽  
Deuteron Scattering ◽  
Invariance Violation ◽  
Operator Structure ◽  
Glauber Theory ◽  
Reversal Invariance ◽  
Transversal Polarization

Apart from the pd reaction also the scattering of antiprotons with transversal polarization PPY on deuterons with tensor polarization Pxz provides a null-test signal for time-reversal-invariance violating but parity conserving effects. Assuming that the time-reversal-invariance violating N̅N interaction contains the same operator structure as the NN interaction, we discuss the energy dependence of the null-test signal in p̅d scattering on the basis of a calculation within the spin-dependent Glauber theory at beam energies of 50-300 MeV.

Sum Rule Photo-Disintegration Cross Sections for the Deuteron with Velocity-Dependent and Hard-Core Potentials

1971 ◽  
Vol 49 (17) ◽  
pp. 2211-2214 ◽  
Author(s):  
S. S. Raghavan ◽  
B. K. Srivastava
Keyword(s):  
Cross Section ◽  
Cross Sections ◽  
Sum Rules ◽  
Hard Core ◽  
Dipole Approximation ◽  
Sum Rule ◽  
Core Potential ◽  
Cross Section Formula ◽  
Dependent Potential ◽  
Integrated Cross Section

We apply the sum rules of Levinger and Bethe to calculate the integrated cross section[Formula: see text]and the bremsstrahlung-weighted cross section[Formula: see text]for the deuteron in the dipole approximation. In our calculations we use (i) Nestor's velocity-dependent potential and (ii) Reid's hard-core potential. Our results for σint and σb obtained with the velocity-dependent potential of Nestor and the hard-core potential of Reid agree well with experiments.

Meson exchange and isobar admixture contributions to elastic electron-deuteron scattering

1974 ◽  
Vol 271 (2) ◽  
pp. 93-96 ◽  
Author(s):  
Werner Fabian ◽  
Hartmuth Arenhövel ◽  
H. G. Miller
Keyword(s):  
Meson Exchange ◽  
Elastic Electron ◽  
Deuteron Scattering

scholarly journals THE CHIRAL COLOR SYMMETRY OF QUARKS AND G′-BOSON CONTRIBUTIONS TO CHARGE ASYMMETRY IN $t \bar t$-PRODUCTION AT THE LHC AND TEVATRON

2013 ◽  
Vol 28 (10) ◽  
pp. 1350035 ◽  
Author(s):  
I. V. FROLOV ◽  
M. V. MARTYNOV ◽  
A. D. SMIRNOV
Keyword(s):  
Cross Section ◽  
Charge Asymmetry ◽  
Mixing Angle ◽  
Color Symmetry ◽  
Text Production ◽  
Cross Section Formula ◽  
Free Parameters ◽  
The Cross

The contributions of G′-boson predicted by the chiral color symmetry of quarks to the charge asymmetry [Formula: see text] in [Formula: see text]-production at the LHC and to the forward–backward asymmetry [Formula: see text] in [Formula: see text]-production at the Tevatron are calculated and analyzed in dependence on two free parameters of the model, the G′ mass mG′ and mixing angle θG. The mG′ - θG regions of 1 σ consistency with the CMS data on the cross-section [Formula: see text] and on the charge asymmetry [Formula: see text] are found and compared with those resulted from the CDF data on the cross-section [Formula: see text] and on the forward–backward asymmetry [Formula: see text] of [Formula: see text]-production at the Tevatron with account of the current SM predictions for [Formula: see text].

The study of neutron capture processes in AlN nanoparticles

2021 ◽  
pp. 2150127
Author(s):  
T. G. Naghiyev
Keyword(s):  
Computer Modeling ◽  
Cross Section ◽  
Neutron Capture ◽  
Absorption Cross Section ◽  
Effective Cross Section ◽  
Absorption Cross ◽  
Effective Absorption ◽  
Different Types ◽  
N Isotopes

The neutron capture processes in the AlN nanoparticles were investigated by computer modeling. Neutrons absorption were separately investigated for aluminum (Al) and nitrogen (N) atoms in the AlN nanoparticles. The modeling was performed separately for each stable Al and N isotopes, because the effective absorption cross-section of different types of isotopes of Al and N atoms is different. Moreover, effective cross-section spectra of neutron capture for aluminum and nitrogen atoms were comparatively investigated.

scholarly journals Bhabha scattering in very special relativity at finite temperature

2020 ◽  
Vol 80 (8) ◽  
Author(s):  
Alesandro Ferreira dos Santos ◽  
Faqir C. Khanna
Keyword(s):  
Differential Cross Section ◽  
Special Relativity ◽  
Cross Section ◽  
Differential Cross ◽  
Local Form ◽  
Bhabha Scattering ◽  
Thermo Field Dynamics ◽  
Different Types ◽  
Non Local ◽  
Very Special Relativity

Abstract In this paper the differential cross section for Bhabha scattering in the very special relativity (VSR) framework is calculated. The main characteristic of the VSR is to modify the gauge invariance. This leads to different types of interactions appearing in a non-local form. In addition, using the Thermo Field Dynamics formalism, thermal corrections for the differential cross section of Bhabha scattering in VSR framework are obtained.

scholarly journals The Photoneutron Cross Section of 9Be in the Intermediate Energy Range

1959 ◽  
Vol 12 (1) ◽  
pp. 21 ◽  
Author(s):  
HH Thies ◽  
BM Spicer ◽  
JEE Baglln
Keyword(s):  
Energy Range ◽  
Cross Section ◽  
Level Scheme ◽  
Complex Shape ◽  
Intermediate Energy ◽  
Bremsstrahlung Radiation ◽  
Integrated Cross Section ◽  
The Cross

The photoneutron cross section of DBe has been measured in the region from 6�5 to 18 MeV, using filtered bremsstrahlung radiation from an 18 MeV synchrotron. The integrated cross section is in agreement with an earlier experiment, but increased resolution has shown a more complex shape, with sharp maxima at 1l�25�O�2 and 13� 25 � 0�2 MeV. The significant features of the cross section are discussed and compared with the level scheme as it is known at present.

scholarly journals Prevalence of Gastrointestinal Helminth Infections in Indigenous Chickens of Selected Areas of Barisal District, Bangladesh

2014 ◽  
Vol 12 (2) ◽  
pp. 135-139 ◽  
Author(s):  
MN Alam ◽  
M Mostofa ◽  
MAHNA Khan ◽  
MA Alim ◽  
AKMA Rahman ◽  
...  
Keyword(s):  
Cross Section ◽  
Helminth Parasites ◽  
Ascaridia Galli ◽  
Routine Examination ◽  
Pathological Lesions ◽  
Heterakis Gallinarum ◽  
Indigenous Chickens ◽  
Gastrointestinal Helminth ◽  
Helminth Infections ◽  
Different Types

The prevalence of gastrointestinal helminth infections and the gross pathological lesions produced by them were studied from February 2012 to January 2013 in the Department of Pharmacology of Bangladesh Agricultural University, Mymensingh. In this study, a total of 320 indigenous chickens aged ranging from 2 to 4 months were examined to identify the different types of gastrointestinal helminth infections in indigenous chickens. During routine examination, six species of helminth parasites were recorded, of which five species of nematodes such as Ascaridia galli, Heterakis gallinarum, Capillaria spp, Acuaria hamulosa and Dispharynx spiralis; and one species was cestode called Raillietina tetragona. The highest prevalence was observed for Ascaridia galli (41.56%) followed in descending order by Raillietina tetragona (19.68%), Heterakis gallinarum (15.62%), Acuaria hamulosa (8.75%), Capillaria spp. (4.68% ) and Disopharinx spiralis (1.56%). The gross pathological lesions were observed in case of Acuaria hamulosa and Heterakis gallinarum infection. In case of Acuaria hamulosa infection keratinization of gizzard mucosa and cross section of adult Acuaria hamulosa were seen along with marked infiltration of neutrophils. The results of this study suggest that both nematodes and cestodes are highly prevalent in indigenous chickens in the studied area.DOI: http://dx.doi.org/10.3329/bjvm.v12i2.21275 Bangl. J. Vet. Med. (2014). 12 (2): 135-139 

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