scholarly journals Nuclear Effects in Neutrino Interactions at Low Momentum Transfer

2015 ◽  
Author(s):  
Ethan Ryan Miltenberger
2016 ◽  
Vol 116 (7) ◽  
Author(s):  
P. A. Rodrigues ◽  
J. Demgen ◽  
E. Miltenberger ◽  
L. Aliaga ◽  
O. Altinok ◽  
...  

2011 ◽  
Vol 702 (5) ◽  
pp. 433-437 ◽  
Author(s):  
Omar Benhar ◽  
Giovanni Veneziano

2016 ◽  
Vol 94 (1) ◽  
Author(s):  
X.-G. Lu ◽  
L. Pickering ◽  
S. Dolan ◽  
G. Barr ◽  
D. Coplowe ◽  
...  

2018 ◽  
Vol 121 (20) ◽  
Author(s):  
P. A. Rodrigues ◽  
J. Demgen ◽  
E. Miltenberger ◽  
L. Aliaga ◽  
O. Altinok ◽  
...  

2020 ◽  
Vol 102 (1) ◽  
Author(s):  
Spencer R. Klein ◽  
Sally A. Robertson ◽  
Ramona Vogt

A series of runs have been recently completed at the Argonne 12.5 GeV proton-synchrotron, the Z. G. S., which were designed to study the elastic scattering of neutrinos via the reaction v + n → μ - + p + . The data provided are expected to give a measure of the momentum transfer dependence or form factor for the axial vector part of the weak interaction as expressed in terms of an axial vector mass or a mean square radius for the axial vector interaction. It was envisaged in the early planning of this experiment that the high intensity of the Argonne Z. G. S. combined with the energy of neutrinos expected to be obtained from 12-5 GeV protons, would combine to make a study of elastic neutrino interactions a desirable and an advantageous type of experiment. In order to obtain a high mass target with neutrino interaction rates of several hundred per day and the possibility of muon sign determination, we used iron as the principal mass. The neutrinos thus interact ‘quasi-elastically’ with neutrons in the iron nucleus providing sufficient momentum transfer is involved so that nuclear physics effects are avoided.


Author(s):  
C.J. Rossouw ◽  
L.J. Allen ◽  
P.R. Miller

An Einstein model for thermal diffuse scattering (TDS) has enabled quantitative calculation of the absorptive potential V'(r). This allows anomalous absorption to be accounted for in LACBED contrast. Fourier coefficients Vg-h of the absorptive component from each atom α are calculated from integrals of the formwhere fα is the scattering amplitude and M(Q) the Debye-Waller factor. Integration over the Ewald sphere (dΩ) requires the momentum transfer q to have values up to 2ko (the incident beam momentum). Dynamical ‘dechannelling’ is accounted for by the terms g ≠ h. The crystal absorptive potential is obtained by coherently summing over these atomic absorptive potentials within the unit cell. Unlike the elastic potential, the absorptive potential is a strong function of incident beam energy Eo, since the range of momentum transfer q and associated solid angles dΩ change with the Ewald sphere radius.Fig. 1 shows a LACBED pattern of the zeroth order beam from Si aligned along a <001> zone axis.


Sign in / Sign up

Export Citation Format

Share Document