scholarly journals Partial Wave Analysis of the l8O(p, a0)15N Reaction

1979 ◽  
Vol 32 (3) ◽  
pp. 187 ◽  
Author(s):  
LWJ Wild ◽  
BM Spicer
Keyword(s):  
Least Squares ◽  
Partial Wave ◽  
Cross Sections ◽  
Differential Cross ◽  
Partial Wave Analysis ◽  
Differential Cross Sections ◽  
Wave Analysis ◽  
Least Squares Fitting ◽  
Analytic Expression ◽  
Bombarding Energy

A partial wave analysis of the differential cross sections for the 180(p,OCO)15N reaction has been carried out by applying the formalism of .Blatt and Biedenharn (1952), made specific for this reaction. The differential cross sections, measured at 200 keV intervals from 6�6 to 10�4 MeV bombarding energy, were subjected to least-squares fitting to this specific analytic expression. Two resonances were given by the analysis, the 19p states being at 14�71 �0�07 MeV (1/2-) and 14�80�0�07 MeV (1/2 +).

Semiclassical fully differential ionization cross sections of helium with negatively charged fast projectiles

Open Physics ◽  
2011 ◽  
Vol 9 (4) ◽  
Author(s):  
Ferenc Járai-Szabó ◽  
Ladislau Nagy
Keyword(s):  
Partial Wave ◽  
Cross Sections ◽  
Differential Cross ◽  
Reasonable Agreement ◽  
Partial Wave Analysis ◽  
Wave Analysis ◽  
Ionization Cross ◽  
Fully Differential ◽  
Semiclassical Model ◽  
Ionization Cross Sections

AbstractFully differential cross sections are calculated for the ionization of helium by negatively charged fast projectiles using a semiclassical model developed previously for the ionization of atoms by positive projectiles. The method is tested in the case of 1 keV electron and 500 keV antiproton projectiles. The semiclassical results show reasonable agreement with the experiments and other theories. The origin of the obtained structures has been investigated by a partial wave analysis.

New analysis of the low-energy π±p differential cross-sections of the CHAOS Collaboration

2015 ◽  
Vol 24 (07) ◽  
pp. 1550050 ◽  
Author(s):  
E. Matsinos ◽  
G. Rasche
Keyword(s):  
Experimental Data ◽  
Cross Sections ◽  
Differential Cross ◽  
Form Factors ◽  
Partial Wave Analysis ◽  
Meson Mass ◽  
Data Sets ◽  
Differential Cross Sections ◽  
Pion Nucleon ◽  
Meson Factory

In a previous paper, we reported the results of a partial-wave analysis (PWA) of the pion–nucleon (πN) differential cross-sections (DCSs) of the CHAOS Collaboration and came to the conclusion that the angular distribution of their π+p data sets is incompatible with the rest of the modern (meson factory) database. The present work, re-addressing this issue, has been instigated by a number of recent improvements in our analysis, namely regarding the inclusion of the theoretical uncertainties when investigating the reproduction of experimental data sets on the basis of a given "theoretical" solution, modifications in the parametrization of the form factors of the proton and of the pion entering the electromagnetic part of the πN amplitude, and the inclusion of the effects of the variation of the σ-meson mass when fitting the ETH model of the πN interaction to the experimental data. The new analysis of the CHAOS DCSs confirms our earlier conclusions and casts doubt on the value for the πN Σ term, which Stahov, Clement and Wagner have extracted from these data.

Partial-wave analysis ofn+Am241reaction cross sections in the resonance region

2015 ◽  
Vol 92 (1) ◽  
Author(s):  
G. Noguere ◽  
O. Bouland ◽  
S. Kopecky ◽  
C. Lampoudis ◽  
P. Schillebeeckx ◽  
...  
Keyword(s):  
Partial Wave ◽  
Cross Sections ◽  
Resonance Region ◽  
Partial Wave Analysis ◽  
Wave Analysis

scholarly journals XYZ states at BESIII

2019 ◽  
Vol 212 ◽  
pp. 02003
Author(s):  
Zhentian Sun
Keyword(s):  
Fine Structure ◽  
Partial Wave ◽  
Decay Mode ◽  
Cross Sections ◽  
Precise Measurement ◽  
Partial Wave Analysis ◽  
Experimental Results ◽  
Wave Analysis ◽  
Decay Modes

In this proceeding, I report the most recent experimental results from BESIII about the XYZ sates. Two new X(3872) decay modes are observed, which is X(3872) → ωJ/ψ and X(3872) → π0χc1(1P). Precise measurement of cross sections of various channels reveal more fine structure about Y states. To study the property of Zc states, the Jp of Zc(3900) is determined with partial wave analysis, and a hint of new decay mode of Zc±(3900) → ρ±ηc are observed.

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