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Book Parameterizations of Pion Energy Spectrum in Nucleon Nucleon Collisions

Download or read book Parameterizations of Pion Energy Spectrum in Nucleon Nucleon Collisions written by National Aeronaut Administration (Nasa) and published by Createspace Independent Publishing Platform. This book was released on 2018-07-10 with total page 58 pages. Available in PDF, EPUB and Kindle. Book excerpt: The effects of pion (PI) production are expected to play an important role in radiation exposures in the upper atmosphere or on the Martian surface. Nuclear databases for describing pion production are developed for radiation transport codes to support these studies. We analyze the secondary energy spectrum of pions produced in nucleon-nucleon (NN) collisions in the relativistic one-pion exchange model. Parametric formulas of the isospin cross sections for one-pion production channels are discussed and are used to renormalize the model spectrum. Energy spectra for the deuteron related channels (NN yields dPi) are also described. Cucinotta, Franics A. and Wilson, John W. and Norbury, John W. Langley Research Center...

Book Cross Section Parameterizations for Pion and Nucleon Production from Negative Pion Proton Collisions

Download or read book Cross Section Parameterizations for Pion and Nucleon Production from Negative Pion Proton Collisions written by National Aeronautics and Space Administration (NASA) and published by Createspace Independent Publishing Platform. This book was released on 2018-05-29 with total page 46 pages. Available in PDF, EPUB and Kindle. Book excerpt: Ranft has provided parameterizations of Lorentz invariant differential cross sections for pion and nucleon production in pion-proton collisions that are compared to some recent data. The Ranft parameterizations are then numerically integrated to form spectral and total cross sections. These numerical integrations are further parameterized to provide formula for spectral and total cross sections suitable for use in radiation transport codes. The reactions analyzed are for charged pions in the initial state and both charged and neutral pions in the final state.Norbury, John W. and Blattnig, Steve R. and Norman, Ryan and Tripathi, R. K.Langley Research CenterNUCLEONS; PARAMETERIZATION; PIONS; PAIR PRODUCTION; IONIC COLLISIONS; SCATTERING CROSS SECTIONS; RADIATION TRANSPORT; LORENTZ TRANSFORMATIONS; CYLINDRICAL COORDINATES; CHARGED PARTICLES

Book Neutral Pion Production in Nucleus nucleus Collisions at 158 and 200 GeV nucleon

Download or read book Neutral Pion Production in Nucleus nucleus Collisions at 158 and 200 GeV nucleon written by and published by . This book was released on 1998 with total page 11 pages. Available in PDF, EPUB and Kindle. Book excerpt: Two years ago, at the 12th Winter Workshop on Nuclear Dynamics held here in Snowbird, the authors presented WA80 limits on direct photon production in 200-GeV 32S + Au collisions. It was found that the results were consistent (within 1[sigma]) with the absence of an excess of photons over those that can be accounted for by the two-photon decay branches of [pi]° and [eta] mesons and by the small photon contributions from other radiative decays. They are in the process of finalizing the direct-photon production results from collisions of lead nuclei at 158 GeV/nucleon. The author briefly discusses the status of the analysis and gives some preliminary results at the end of this talk. However, most of this presentation is concerned with a very different aspect of the photon measurements: distributions of neutral pions. In contrast to direct photons which probe initial collision conditions, hadrons, such as neutral pions, interact strongly and decouple late in the reaction evolution and, thus, provide information concerning the system at freeze out. Transverse momentum spectra at low and intermediate p{sub T} relate to thermodynamic and hydrodynamic descriptions of the hot, dense systems. In addition, the high-p{sub T} region reflects the hard-scattering regime and may help one understand initial-state particle production by forming a bridge to proton-proton and proton-nucleus results. It follows that it is essential that the [pi]° measurements cover a large p{sub T} range.

Book Inclusive Production of K    and  pi     in Relativistic Nuclear Collisions by the Reactions

Download or read book Inclusive Production of K and pi in Relativistic Nuclear Collisions by the Reactions written by Eugene Franklin Barasch and published by . This book was released on 1987 with total page 346 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Recent Developments in Theories of Pion Production in Nucleon nucleon Collisions

Download or read book Recent Developments in Theories of Pion Production in Nucleon nucleon Collisions written by and published by . This book was released on 1998 with total page 14 pages. Available in PDF, EPUB and Kindle. Book excerpt: Recent developments in theories of pion production in nucleon-nucleon collisions are reviewed.

Book Pion Production in Nucleus nucleus Collisions Below a Few GeV

Download or read book Pion Production in Nucleus nucleus Collisions Below a Few GeV written by and published by . This book was released on 1980 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: A general review of experimental data on pion production in A-A collisions for incident energies below a few GeV/nucleon is presented. Early data on inclusive pion spectra, which served as the genesis for present pion measurements, are discussed. The majority of the paper is devoted to present pion experiments, with an emphasis being placed on what such experiments tell about the general features of high-energy A-A collisions. Particular attention is given to multipion production as studied in recent streamer chamber experiments. The review ends with projections on future experiments with the heavier beams that will be available in 1982 at Berkeley, and the higher-energy beams that will hopefully be available in the not too distant future. 39 figures.

Book Pion Production at 180  in Nucleus nucleus Collisions

Download or read book Pion Production at 180 in Nucleus nucleus Collisions written by Stephen Alan Chessin and published by . This book was released on 1983 with total page 354 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Exclusive Spin dependent Pion Production in Medium energy Nucleon nucleon Collisions   800 MeV

Download or read book Exclusive Spin dependent Pion Production in Medium energy Nucleon nucleon Collisions 800 MeV written by and published by . This book was released on 1980 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Application of a unitary, relativistic three-body isobar model to the reaction pp .-->. np.pi. at 800 MeV gives a good parameter-free representation of the exclusive spin-averaged cross section and asymmetry. 4 figures.

Book Physics of Low Energy Pion Production   Threshold and 3 3 Regions  Cross Sections  Off shell T Matrix and Interaction Range

Download or read book Physics of Low Energy Pion Production Threshold and 3 3 Regions Cross Sections Off shell T Matrix and Interaction Range written by and published by . This book was released on 1977 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Current thoughts about pion production in nucleon-nucleon collisions at threshold and into the energy region corresponding to production in the 3-3 region are briefly presented. Special emphasis is placed on the relation between the range of the interactions and the range of the off-shell t-matrix. Comparison is made between recent calculations and polarization asymmetry data.

Book Spectra of Pions and Protons in Nuclear Collisions at 200 GeV nucleon

Download or read book Spectra of Pions and Protons in Nuclear Collisions at 200 GeV nucleon written by Blevis Ira and published by . This book was released on 1991 with total page 89 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Theories of Pion Production in Nucleon nucleon Collisions

Download or read book Theories of Pion Production in Nucleon nucleon Collisions written by Betz, M and published by . This book was released on 1981 with total page 14 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Pion Production in Pion nucleon Collisions

Download or read book Pion Production in Pion nucleon Collisions written by Peter A. Carruthers and published by . This book was released on 1961 with total page 342 pages. Available in PDF, EPUB and Kindle. Book excerpt: