Double pion production in proton-proton interactions at Tp=1.4 GeV

2012 ◽  
Author(s):  
T. Tolba ◽  
WASA-at-COSY Collaboration
Keyword(s):  
Pion Production ◽  
Proton Proton ◽  
Double Pion

Single and double pion production from 800 MeV proton-proton collisions

1981 ◽  
Vol 23 (4) ◽  
pp. 1698-1705 ◽  
Author(s):  
F. H. Cverna ◽  
P. R. Bevington ◽  
M. W. McNaughton ◽  
H. B. Willard ◽  
N. S. P. King ◽  
...  
Keyword(s):  
Pion Production ◽  
Proton Proton ◽  
Proton Collisions ◽  
Double Pion ◽  
Proton Proton Collisions

Correlation between the sea level muon spectrum and the primary nucleon spectrum using the Cocconi–Koester–Perkins model

1979 ◽  
Vol 57 (7) ◽  
pp. 921-925 ◽  
Author(s):  
A. K. Chakrabarti ◽  
A. K. Das ◽  
A. K. De
Keyword(s):  
Sea Level ◽  
Pion Production ◽  
Spectral Shape ◽  
Muon Spectrum ◽  
Proton Proton ◽  
Absolute Value ◽  
Nucleon Spectrum ◽  
Scaling Models ◽  
The Mean ◽  
Good Agreement

Using the recent ISR data of proton–proton interactions on the inclusive production of pions and nucleons, realistic values of the mean pion inelasticity Kπ and the mean nucleon inelasticity KT have been estimated. These values have been used for the derivation of the sea level differential muon spectrum from the primary nucleon spectrum and vice versa using the CKP model as an extension of the work presented in an earlier article. It is found that none of the measured primary nucleon spectra of Ryan, Ormes, and Balasubrahmanyan and Grigorov, Rapoport, and Shestoperov fit any of the precisely measured muon spectra of Ayre, Baxendale, Hume, Nandi, Thompson, and Whalley and Allkofer, Carstensen, and Dau in spectral shape or the absolute value. On the other hand good agreement between the derived muon spectra and the spectra of Allkofer et al. and Ayre et al. is found if the primary nucleon spectra of the forms, N(Ep) = (1.38 ± 0.08)Ep−2.59 and N(Ep) = (1.00 ± 0.10)Ep−2.55, respectively, are assumed. The first form is comparable with that obtained by Brooke, Hayman, Kamiya, and Wolfendale following more approximate but similar procedure. It is also not unjustified when compared with the measured primary all nuclei spectrum of Grigorov et al. in the light of suggestions made by Ellsworth, Ito, Macfall, Siohan, Streitmatter, Tonwar, Vishwanath, Yodh, and Balasubrahmanyan. By comparing the pion production spectra derived from the same primary nucleon spectrum but using the CKP and the scaling models, it is concluded that the results are sensitive to the model assumed for the collisions.

A bubble-chamber study of proton-proton collisions at 4 GeV/c. II.—Multiple pion production

1968 ◽  
Vol 58 (2) ◽  
pp. 475-499 ◽  
Author(s):  
L. Bodini ◽  
L. Casè ◽  
J. Kidd ◽  
L. Mandelli ◽  
V. Pelosi ◽  
...  
Keyword(s):  
Pion Production ◽  
Bubble Chamber ◽  
Proton Proton ◽  
Proton Collisions ◽  
Chamber Study ◽  
Proton Proton Collisions

ππ PRODUCTION IN PROTON-PROTON COLLISIONS

2007 ◽  
Vol 22 (02n03) ◽  
pp. 509-513 ◽  
Author(s):  
◽  
T. Skorodko ◽  
M. Bashkanov ◽  
D. Bogoslowsky ◽  
H. Calén ◽  
...  
Keyword(s):  
Pion Production ◽  
Invariant Mass Spectrum ◽  
Light Nuclei ◽  
Special Configuration ◽  
Proton Proton ◽  
Proton Collisions ◽  
Low Mass ◽  
Threshold Energies ◽  
Proton Proton Collisions ◽  
Mass Enhancement

At CELSIUS-WASA the two-pion production in proton-proton collisisons has been measured exclusively from threshold up to the energy regime, where both of the collision partners are expected to be excited to the Δ state. The measurements constitute the first kinematically complete data samples of solid statistics in this energy range. Most of the data have been obtained for the π+π- and π0π0channels. Whereas at near-threshold energies the differential distributions can be succesfully explained by chiral dynamics and Roper excitation, respectively, the data for the π+π- channel in the ΔΔ region can be described only, if the special configuration (ΔΔ)0+ is assumed. The data for the π0π0 channel moreover exhibit a low-mass enhancement in the π0π0 invariant mass spectrum, which is reminiscent of the ABC-effect found in double-pionic fusion to light nuclei.

scholarly journals POLARIZATION DEGREES OF FREEDOM IN CHARGED DOUBLE PION PRODUCTION BY VIRTUAL PHOTONS

GDH 2002 ◽  
2003 ◽  
Author(s):  
E. GOLOVACH ◽  
V. BURKERT ◽  
V. MOKEEV ◽  
M. RIPANI ◽  
M. ANGHINOLFI ◽  
...  
Keyword(s):  
Degrees Of Freedom ◽  
Pion Production ◽  
Virtual Photons ◽  
Double Pion

scholarly journals Pion production in proton-proton collisions in a covariant one-boson-exchange model

1996 ◽  
Vol 603 (3-4) ◽  
pp. 387-414 ◽  
Author(s):  
A. Engel ◽  
R. Shyam ◽  
U. Mosel ◽  
A.K. Dutt-Mazumder
Keyword(s):  
Pion Production ◽  
Exchange Model ◽  
Proton Proton ◽  
Proton Collisions ◽  
Boson Exchange ◽  
Proton Proton Collisions

Study of particle ratios in single- and double-pion production inppinteractions at 405 GeV/c

1981 ◽  
Vol 24 (3) ◽  
pp. 605-611 ◽  
Author(s):  
A. Suzuki ◽  
M. Fukawa ◽  
H. Kichimi ◽  
F. Ochiai ◽  
T. Sato ◽  
...  
Keyword(s):  
Pion Production ◽  
Particle Ratios ◽  
Double Pion
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