Soft Pion Production in Nucleon-Nucleon Collisions

1969 ◽  
Vol 184 (5) ◽  
pp. 1737-1739 ◽  
Author(s):  
C. T. Grant ◽  
M. E. Schillaci ◽  
R. R. Silbar
Keyword(s):  
Pion Production ◽  
Nucleon Nucleon ◽  
Soft Pion

A study of single pion production in nucleon-nucleon collisions

1981 ◽  
Vol 356 (2) ◽  
pp. 345-364 ◽  
Author(s):  
A. König ◽  
P. Kroll
Keyword(s):  
Pion Production ◽  
Nucleon Nucleon

Exclusive spin-dependent pion production in medium-energy nucleon-nucleon collisions: The role of unitarity

1981 ◽  
Vol 106 (1-2) ◽  
pp. 29-32 ◽  
Author(s):  
J. Dubach ◽  
W.M. Kloet ◽  
A. Cass ◽  
R.R. Silbar
Keyword(s):  
Pion Production ◽  
Nucleon Nucleon ◽  
Medium Energy

PIONIC FUSION AT SUBTHRESHOLD ENERGIES

2009 ◽  
Vol 24 (02n03) ◽  
pp. 539-543
Author(s):  
L. JOULAEIZADEH ◽  
J. BACELAR ◽  
M. ESLAMI-KALANTARI ◽  
I. GAŠPARIĆ ◽  
N. KALANTAR-NAYESTANAKI ◽  
...  
Keyword(s):  
Cross Sections ◽  
Pion Production ◽  
Detection System ◽  
Nucleon Nucleon ◽  
Accelerator Facility ◽  
Production Threshold ◽  
Neutral Pions ◽  
Pion Production Threshold ◽  
Plastic Ball ◽  
Large Acceptance

In order to study the role of pions and clustering phenomena in nuclei, two experiments have been performed using the AGOR accelerator facility. In collisions of two nuclei a pion and a fused nucleus were produced. The examined reactions were 4He(3He, π0)7Be and 6Li(4He, π0)10B at beam energies about 10 MeV above the coherent pion production threshold (256 MeV and 236.4 MeV, respectively). Since the available energy is well below the pion production threshold in an elementary nucleon-nucleon process, a highly coherent mechanism is needed. We identified the reaction by measuring the fused system in the magnetic spectrometer and the produced neutral pions in the Plastic Ball detection system with large acceptance. Our experimental setup provided the exclusive cross sections by identifying all products in overdetermined kinematics. Here we present the preliminary results of the analysis for the second reaction. Angular distribution of neutral pions will be discussed.

Pion production mechanism in nucleon-nucleon collisions

2000 ◽  
Vol 663-664 ◽  
pp. 457c-460c ◽  
Author(s):  
K. Tamura ◽  
Y. Maeda ◽  
N. Matsuoka
Keyword(s):  
Pion Production ◽  
Nucleon Nucleon ◽  
Production Mechanism

scholarly journals Pion production in nucleon-nucleon collisions and the issue of dibaryons

2019 ◽  
Vol 199 ◽  
pp. 01015
Author(s):  
T. Skorodko ◽  
H. Clement ◽  
M. Bashkanov
Keyword(s):  
Neutron Scattering ◽  
Pion Production ◽  
Nucleon Nucleon ◽  
Branching Ratios ◽  
Elastic Proton ◽  
Dibaryon Resonance

Pion production in nucleon-nucleon collisions is tightly connected with the issue of dibaryons. After having established the existence of the narrow dibaryon resonance d* (2380) with I(JP) = 0(3+) by two-pion production and elastic proton-neutron scattering experiments, the discussion focuses now on its structure, whether it is a dilute molecular-like or a compact hexaquark object. These scenarios are confronted with experimental branching ratios and other observables. New WASA data for the pp → ppπ+π− reaction give evidence for the existence of an isotensor ΔN threshold state with JP = 1+ as calculated recently by Gal and Garcilazo and predicted earlier by Dyson and Xuong. New ANKE results suggest the dibaryon spectrum to be richer than expected.

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