scholarly journals Model dependence of the polarization asymmetries in weak pion production off the nucleon

2021 ◽  
Vol 104 (3) ◽  
Author(s):  
Krzysztof M. Graczyk ◽  
Beata E. Kowal
Keyword(s):  
Pion Production ◽  
Model Dependence

Observation of Single-Pion Production by a Weak Neutral Current

1974 ◽  
Vol 33 (7) ◽  
pp. 448-451 ◽  
Author(s):  
S. J. Barish ◽  
Y. Cho ◽  
M. Derrick ◽  
L. G. Hyman ◽  
J. Rest ◽  
...  
Keyword(s):  
Pion Production ◽  
Neutral Current ◽  
Weak Neutral Current

scholarly journals Multi-scale time-frequency domain full waveform inversion with a weighted local correlation-phase misfit function

2019 ◽  
Vol 16 (6) ◽  
pp. 1017-1031 ◽  
Author(s):  
Yong Hu ◽  
Liguo Han ◽  
Rushan Wu ◽  
Yongzhong Xu
Keyword(s):  
Frequency Domain ◽  
Seismic Data ◽  
Waveform Inversion ◽  
Low Frequency ◽  
Full Waveform Inversion ◽  
Local Correlation ◽  
Time Frequency ◽  
Model Dependence ◽  
Full Waveform ◽  
Frequency Components

Abstract Full Waveform Inversion (FWI) is based on the least squares algorithm to minimize the difference between the synthetic and observed data, which is a promising technique for high-resolution velocity inversion. However, the FWI method is characterized by strong model dependence, because the ultra-low-frequency components in the field seismic data are usually not available. In this work, to reduce the model dependence of the FWI method, we introduce a Weighted Local Correlation-phase based FWI method (WLCFWI), which emphasizes the correlation phase between the synthetic and observed data in the time-frequency domain. The local correlation-phase misfit function combines the advantages of phase and normalized correlation function, and has an enormous potential for reducing the model dependence and improving FWI results. Besides, in the correlation-phase misfit function, the amplitude information is treated as a weighting factor, which emphasizes the phase similarity between synthetic and observed data. Numerical examples and the analysis of the misfit function show that the WLCFWI method has a strong ability to reduce model dependence, even if the seismic data are devoid of low-frequency components and contain strong Gaussian noise.

Inclusive Pion Production in Collisions of Relativistic Protons, Deuterons, Alphas, and Carbon Ions with Nuclei.

1975 ◽  
Vol 34 (15) ◽  
pp. 991-991 ◽  
Author(s):  
J. Papp ◽  
J. Jaros ◽  
L. Schroeder ◽  
J. Staples ◽  
H. Steiner ◽  
...  
Keyword(s):  
Pion Production ◽  
Carbon Ions

scholarly journals Two-pion production in deuteron-deuteron collisions at low energies

2006 ◽  
Vol 28 (2) ◽  
pp. 245-249 ◽  
Author(s):  
G. Fäldt ◽  
U. Tengblad ◽  
C. Wilkin
Keyword(s):  
Pion Production ◽  
Low Energies

Multiple pion production (without annihilation) in $$\bar p - p$$ collisions at 7 GeV/ccollisions at 7 GeV/c

1965 ◽  
Vol 38 (1) ◽  
pp. 19-25 ◽  
Author(s):  
T. Ferbel ◽  
A. Firestone ◽  
J. Johnson ◽  
J. Sandweiss ◽  
H. D. Taet
Keyword(s):  
Pion Production

scholarly journals Pion production in high-energy nucleus-nucleus collisions

1987 ◽  
Vol 58 (5) ◽  
pp. 463-466 ◽  
Author(s):  
J. W. Harris ◽  
G. Odyniec ◽  
H. G. Pugh ◽  
L. S. Schroeder ◽  
M. L. Tincknell ◽  
...  
Keyword(s):  
Pion Production ◽  
High Energy
Sign in / Sign up

Export Citation Format

Share Document