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Pionic fusion at subthreshold energies (CROSBI ID 150165)

Prilog u časopisu | izvorni znanstveni rad | međunarodna recenzija

Joulaeizadeh, L. ; Bacelar, J. ; Eslami-Kalantari, M. ; Gašparić, Igor ; Kalantar-Nayestanaki, N. ; Lohner, H. ; Mardanpour, H. ; Messchendorp, J. G. ; Moeini, H. ; Ramazani-Moghaddam-Arani A. et al. Pionic fusion at subthreshold energies // International journal of modern physics A, 24 (2009), 2-3; 539-543. doi: 10.1142/S0217751X09044024

Podaci o odgovornosti

Joulaeizadeh, L. ; Bacelar, J. ; Eslami-Kalantari, M. ; Gašparić, Igor ; Kalantar-Nayestanaki, N. ; Lohner, H. ; Mardanpour, H. ; Messchendorp, J. G. ; Moeini, H. ; Ramazani-Moghaddam-Arani A. ; Shende, S. V. ; Stephan, E.

engleski

Pionic fusion at subthreshold energies

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 He-4(He-3, pi(0))Be-7 and Li-6(He-4, pi(0))B-10 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.

pionic fusion ; neutral pion production ; subthreshold energy

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Podaci o izdanju

24 (2-3)

2009.

539-543

objavljeno

0217-751X

1793-656X

10.1142/S0217751X09044024

Povezanost rada

Fizika

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