ON THE CP-SYMMETRY IN THE NEUTRINO SCATTERING BY NUCLEI

2000 ◽  
Vol 15 (08) ◽  
pp. 557-564 ◽  
Author(s):  
R. B. BEGZHANOV ◽  
R. S. SHARAFIDDINOV

The elastic scattering of longitudinal and transversal neutrinos on a spinless nucleus have been discussed taking into account the charge, magnetic, anapole and electric dipole moments of fermions and their weak neutral currents. Compound structure of the neutrino interaction cross-section with nuclei have been defined. Invariance of the considered process concerning the C- and P-operations have been investigated in the polarization type dependence.

2019 ◽  
Author(s):  
Alejandro Gutiérrez-Rodríguez ◽  
Murat Köksal ◽  
Ahmet A. Billur ◽  
MARIA HERNANDEZ

In this paper the production cross-section pp\rightarrow (\gamma, Z) \to \nu_\tau \bar \nu_\tau \gamma+Xpp→(γ,Z)→ντν‾τγ+X in pppp collisions at \sqrt{s}=13, 14, 33\hspace{0.8mm}TeV is presented. Furthermore, we estimate bounds at the 95\%95% C.L. on the dipole moments of the \tauτ-neutrino using integrated luminosity of {\cal L}= 100, 500, 1000, 3000 \hspace{0.8mm}fb^{-1} collected with the ATLAS detector at the LHC and we consider systematic uncertainties of \delta_{sys} = 0\%, \, 5\%, \,10\%δsys=0%,5%,10%. We found that the current and future LHC bounds are weaker than other experiments reported in previous investigations. However, it is shown that the estimated process is a good prospect for probing the dipole moments of the \tauτ-neutrino at the LHC.


Author(s):  
J. Langmore ◽  
M. Isaacson ◽  
J. Wall ◽  
A. V. Crewe

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.


2019 ◽  
Vol 55 (8) ◽  
Author(s):  
A. Gutiérrez-Rodríguez ◽  
M. Köksal ◽  
A. A. Billur ◽  
M. A. Hernández-Ruíz

2021 ◽  
Vol 2021 (7) ◽  
Author(s):  
Joachim Brod ◽  
Emmanuel Stamou

Abstract Electric dipole moments are sensitive probes of new phases in the Higgs Yukawa couplings. We calculate the complete two-loop QCD anomalous dimension matrix for the mixing of CP-odd scalar and tensor operators and apply our results for a phenomenological study of CP violation in the bottom and charm Yukawa couplings. We find large shifts of the induced Wilson coefficients at next-to-leading-logarithmic order. Using the experimental bound on the electric dipole moments of the neutron and mercury, we update the constraints on CP-violating phases in the bottom and charm quark Yukawas.


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