Three-Body Partial-Wave Analysis for the Final-State Scattering of (π−,NN) fromC12andO16

1969 ◽  
Vol 23 (4) ◽  
pp. 178-181 ◽  
Author(s):  
H. J. Weber
Keyword(s):  
Partial Wave ◽  
Partial Wave Analysis ◽  
Wave Analysis ◽  
Final State ◽  
Three Body

scholarly journals Recent progress in the partial wave analysis of the diffractively produced π−π+π− final state at Compass

2019 ◽  
Vol 199 ◽  
pp. 02003 ◽  
Author(s):  
Fabian Krinner
Keyword(s):  
Partial Wave ◽  
Pion Production ◽  
Recent Progress ◽  
Large Data ◽  
Partial Wave Analysis ◽  
Wave Analysis ◽  
Final State ◽  
Data Set ◽  
Large Data Set

The Compass spectrometer at CERN has collected a large data set for diffractive three-pion production of 46 × 106 exclusive events. Based on previous conventional Partial-Wave Analyses (PWA), we performed a “freed-isobar PWA” on the same data, removing model assumptions on the dynamic isobar amplitudes for dominating waves. In this analysis, we encountered continuous mathematical ambiguities, which we were able to identify and resolve. This analysis gives an unprecedented insight in the interplay of 2π and 3π dynamics in the process. As an example we show results for a spin-exotic wave $J_{{X^ - }}^{PC} = {1^{ - + }}$ wave.

scholarly journals Partial wave analysis of HADES data for two-pion production in pion-nucleon reactions

2019 ◽  
Vol 199 ◽  
pp. 02001
Author(s):  
I. Ciepał ◽  
W. Przygoda ◽  
A. V. Sarantsev
Keyword(s):  
Partial Wave ◽  
Pion Production ◽  
Meson Production ◽  
Resonance Region ◽  
Partial Wave Analysis ◽  
Wave Analysis ◽  
Final State ◽  
Hades Collaboration ◽  
Pion Nucleon

Pion beams are perfect tools to probe resonance excitations at a fixed energy, thus properties of baryonic resonances and their coupling channels can be studied. The HADES Collaboration performed a systematic scan around the second resonance region at four different pion beam momenta 0.656, 0.69, 0.748 and 0.8 GeV/c in π− p reaction. The role of the N(1520) resonance in conjunction with the intermediate ρ-meson production has been studied in the framework of a partial wave analysis. Preliminary results on exclusive channels with one pion (π− p) and two pions (nπ+π− and pπ−π0) in the final state are presented.

scholarly journals SLAC three-body partial wave analysis system

1985 ◽  
Author(s):  
D. Aston ◽  
T.A. Lasinski ◽  
P.K. Sinervo
Keyword(s):  
Partial Wave ◽  
Partial Wave Analysis ◽  
Wave Analysis ◽  
Analysis System ◽  
Three Body

An isobar model partial-wave analysis of three-body final states in π+p interactions from threshold to 1700 MeV c.m. energy

1980 ◽  
Vol 168 (2) ◽  
pp. 243-271 ◽  
Author(s):  
K.W.J. Barnham ◽  
S.L. Glickman ◽  
W.A.C. Mier-Jedrzejowicz ◽  
S.J. Orebi Gann ◽  
R.A. Stevens ◽  
...  
Keyword(s):  
Partial Wave ◽  
Partial Wave Analysis ◽  
Final States ◽  
Wave Analysis ◽  
Isobar Model ◽  
Three Body

scholarly journals Partial Wave Analysis of HADES Data for Two-Pion Production in Pion-Nucleon Reactions

2020 ◽  
Vol 241 ◽  
pp. 03001
Author(s):  
I. Ciepał
Keyword(s):  
Partial Wave ◽  
Meson Production ◽  
Resonance Region ◽  
Partial Wave Analysis ◽  
Wave Analysis ◽  
Final State ◽  
Decay Channels ◽  
Hades Collaboration ◽  
Pion Nucleon

Pion beams are important tools to study features of baryonic resonances and their decay channels because resonances are produced in s-channel at fixed mass equal to √s. In 2014 the HADES collaboration has performed systematic measurements in the second resonance region scanning around the mass of the N*(1520). Pion beams at four momenta (0.654, 0.686, 0.738 and 0.787 GeV/c) impinging on polyethylene and carbon targets have been used. With the use of the multichannel Partial Wave Analysis (PWA) the role of the N*(1520) resonance in conjunction with the intermediate ρ-meson production has been studied. Preliminary results at 0.654 GeV/c on exclusive production of two pions (ηπ+π- and pπ-π0) in the final state are presented.

scholarly journals Partial wave analysis of HADES data for two-pion production in pion-nucleon reactions

2019 ◽  
Vol 199 ◽  
pp. 01024
Author(s):  
I. Ciepał ◽  
W. Przygoda ◽  
A. V. Sarantsev
Keyword(s):  
Partial Wave ◽  
Pion Production ◽  
Meson Production ◽  
Resonance Region ◽  
Partial Wave Analysis ◽  
Wave Analysis ◽  
Final State ◽  
Hades Collaboration ◽  
Pion Nucleon

Pion beams are perfect tools to probe resonance excitations at a fixed energy, thus properties of baryonic resonances and their coupling channels can be studied. The HADES Collaboration performed a systematic scan around the second resonance region at four different pion beam momenta 0.656, 0.69, 0.748 and 0.8 GeV/c in π− p reaction. The role of the N(1520) resonance in conjunction with the intermediate ρ-meson production has been studied in the framework of a partial wave analysis. Preliminary results on exclusive channels with one pion (π− p) and two pions (nπ+π− and pπ−π0) in the final state are presented.

A partial-wave analysis of three body π+ proton interactions at low energy

1974 ◽  
Vol 76 (1) ◽  
pp. 157-168 ◽  
Author(s):  
P. Chavanon ◽  
J. Dolbeau ◽  
G. Smadja
Keyword(s):  
Partial Wave ◽  
Low Energy ◽  
Partial Wave Analysis ◽  
Wave Analysis ◽  
Three Body
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