The reaction np→ppπ- from threshold up to 570 MeV

Daum, M.; Фингер, М.; Franz, J.; Heinsius, F. H.; Janata, A.; Königsmann, K.; Lacker, H. M.; Lehar, F.; Schmitt, H.; Schweiger, Wolfgang; Sereni, P.; Slunečka, M.

doi:10.1140/epjc/s10052-007-0385-5

Cited by 2 publications

(1 citation statement)

References 46 publications

(142 reference statements)

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“…B.50). The process, NN → NNπ, has been extensively studied in several experiments over the last twenty years [112,113,114,115,116,117,118]. We have, therefore, constructed well defined background cross sections on top of the resonance contributions for all possible isospin channels.…”

Section: Three-body Collisionsmentioning

confidence: 99%

Transport-theoretical description of nuclear reactions

et al. 2012

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In this review we first outline the basics of transport theory and its recent generalization to offshell transport. We then present in some detail the main ingredients of any transport method using in particular the Giessen Boltzmann-Uehling-Uhlenbeck (GiBUU) implementation of this theory as an example. We discuss the potentials used, the ground state initialization and the collision term, including the in-medium modifications of the latter. The central part of this review covers applications of GiBUU to a wide class of reactions, starting from pion-induced reactions over proton and antiproton reactions on nuclei to heavy-ion collisions (up to about 30 AGeV). A major part concerns also the description of photon-, electron-and neutrino-induced reactions (in the energy range from a few 100 MeV to a few 100 GeV). For this wide class of reactions GiBUU gives an excellent description with the same physics input and the same code being used. We argue that GiBUU is an indispensable tool for any investigation of nuclear reactions in which final-state interactions play a role. Studies of pion-nucleus interactions, nuclear fragmentation, heavy-ion reactions, hypernucleus formation, hadronization, color transparency, electronnucleus collisions and neutrino-nucleus interactions are all possible applications of GiBUU and are discussed in this article.

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Section: Three-body Collisionsmentioning

confidence: 99%

Transport-theoretical description of nuclear reactions

et al. 2012

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Single $\mathrm{\ensuremath{\pi^{-}}}$ production in np collisions for excess energies up to 90 MeV

et al. 2008

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The quasifree reaction np → ppπ − was studied in a kinematically complete experiment by bombarding a liquid hydrogen target with a deuteron beam of momentum 1.85 GeV/c and analyzing the data along the lines of the spectator model. In addition to the three charged ejectiles the spectator proton was also detected in the large-acceptance timeof-flight spectrometer COSY-TOF. It was identified by its momentum and flight direction thus yielding access to the Fermi motion of the bound neutron and to the effective neutron 4-momentum vector P n which differed from event to event. A range of almost 90 MeV excess energy above threshold was covered. Energy dependent angular distributions, invariant mass spectra as well as fully covered Dalitz plots were deduced. Sizeable pp FSI effects were found as were contributions of p and d partial waves. The behavior of the elementary cross section σ 01 close to threshold is discussed in view of new cross section data. In comparison with existing literature data the results provide a sensitive test of the spectator model.

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The reaction np→ppπ- from threshold up to 570 MeV

Cited by 2 publications

References 46 publications

Transport-theoretical description of nuclear reactions

Transport-theoretical description of nuclear reactions

Single $\mathrm{\ensuremath{\pi^{-}}}$ production in np collisions for excess energies up to 90 MeV

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