Author: Francis A. CucinottaPublisher:
ISBN:
Category : Extraterrestrial radiation
Languages : en
Pages : 30
Book Description
Parameterizations of Pion Energy Spectrum in Nucleon-Nucleon Collisions
Author: Francis A. CucinottaPublisher:
ISBN:
Category : Extraterrestrial radiation
Languages : en
Pages : 30
Book Description
Parameterizations of Pion Energy Spectrum in Nucleon-Nucleon Collisions
Author: National Aeronaut Administration (Nasa)Publisher: Createspace Independent Publishing Platform
ISBN: 9781722685447
Category :
Languages : en
Pages : 58
Book Description
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...
Parameterizations of Pion Energy Spectrum in Nucleon-nucleon Collisions
Author: Francis A. CucinottaPublisher:
ISBN:
Category : Extraterrestrial radiation
Languages : en
Pages : 23
Book Description
Cross-Section Parameterizations for Pion and Nucleon Production From Negative Pion-Proton Collisions
Author: John W. NorburyPublisher:
ISBN:
Category : Extraterrestrial radiation
Languages : en
Pages : 50
Book Description
Cross-Section Parameterizations for Pion and Nucleon Production from Negative Pion-Proton Collisions
Author: National Aeronautics and Space Administration (NASA)Publisher: Createspace Independent Publishing Platform
ISBN: 9781720454991
Category :
Languages : en
Pages : 46
Book Description
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
Statistical Model Calculations of Nucleon-nucleon and Pion-nucleon Collisions
Author: R. G. AlsmillerPublisher:
ISBN:
Category : Nucleon-nucleon interactions
Languages : en
Pages : 50
Book Description
Neutral Pion Production in Nucleus-nucleus Collisions at 158 and 200 GeV/nucleon
Author: Publisher:
ISBN:
Category :
Languages : en
Pages : 11
Book Description
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.
Inclusive Production of K− and [pi]− in Relativistic Nuclear Collisions by the Reactions
![Inclusive Production of K− and [pi]− in Relativistic Nuclear Collisions by the Reactions PDF](https://books.google.com/books/content/images/frontcover/H8shXB-xbgEC?fife=w80-h100)
Author: Eugene Franklin BaraschPublisher:
ISBN:
Category :
Languages : en
Pages : 346
Book Description
Recent Developments in Theories of Pion Production in Nucleon-nucleon Collisions
Author: Publisher:
ISBN:
Category :
Languages : en
Pages : 14
Book Description
Recent developments in theories of pion production in nucleon-nucleon collisions are reviewed.
Exclusive Spin-dependent Pion Production in Medium-energy Nucleon-nucleon Collisions. [800 MeV].
![Exclusive Spin-dependent Pion Production in Medium-energy Nucleon-nucleon Collisions. [800 MeV]. PDF](https://books.google.com/books/content/images/frontcover/al-1AQAACAAJ?fife=w80-h100)
Author: Publisher:
ISBN:
Category :
Languages : en
Pages :
Book Description
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.