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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 Parameterized Cross Sections for Pion Production in Proton Proton Collisions

Download or read book Parameterized Cross Sections for Pion Production in Proton Proton Collisions written by National Aeronautics and Space Administration (NASA) and published by Createspace Independent Publishing Platform. This book was released on 2018-06-03 with total page 86 pages. Available in PDF, EPUB and Kindle. Book excerpt: An accurate knowledge of cross sections for pion production in proton-proton collisions finds wide application in particle physics, astrophysics, cosmic ray physics, and space radiation problems, especially in situations where an incident proton is transported through some medium and knowledge of the output particle spectrum is required when given the input spectrum. In these cases, accurate parameterizations of the cross sections are desired. In this paper much of the experimental data are reviewed and compared with a wide variety of different cross section parameterizations. Therefore, parameterizations of neutral and charged pion cross sections are provided that give a very accurate description of the experimental data. Lorentz invariant differential cross sections, spectral distributions, and total cross section parameterizations are presented.Blattnig, Steve R. and Swaminathan, Sudha R. and Kruger, Adam T. and Ngom, Moussa and Norbury, John W. and Tripathi, R. K.Langley Research CenterPIONS; SCATTERING CROSS SECTIONS; PARTICLE PRODUCTION; PROTONS; PARTICLE COLLISIONS; PROTON-PROTON REACTIONS; SPECTRA; PARAMETERIZATION; EXTRATERRESTRIAL RADIATION; COSMIC RAYS; ASTROPHYSICS

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 Charged Pion Production from Neutron  proton Collisions at 790 MeV   Differential Cross Sections  Symmetry

Download or read book Charged Pion Production from Neutron proton Collisions at 790 MeV Differential Cross Sections Symmetry written by and published by . This book was released on 1977 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The two reactions np .-->. nn.pi. and np .-->. pp.pi.− were studied at 790 MeV (incident neutron energy). Pion spectra were measured at 10 different angles with a multiwire proportional chamber spectrometer. Approximately 100,000 events were analyzed. The angular distribution of pions in the np center of momentum system (d sigma/d.cap omega.*) was given by ((123.1 +- 2.7) + (88.3 +- 4.9)cos2(theta*))(.mu.b/sr). The cross section sigma(np .-->. NN.pi./sup +-/) was determined to be 1.92 +- 20 mb by integrating (d sigma/d.cap omega.*) over all angles. The partial cross section for pion production from T = 0 np interactions (sigma01) was found to be .1/sub -.1//sup +.5/ mb by using the relation sigma01 = 2sigma(np .-->. NN.pi./sup +- )--sigma(pp .-->. pp.pi.°). Stronger indications of nonresonant pion production were given by the presence of asymmetries between the positive and negative pion spectra and a comparison of the data with an isobar model calculation.

Book High Multiplicity Pion Production in 25 GeV c Pi minus proton Collisions

Download or read book High Multiplicity Pion Production in 25 GeV c Pi minus proton Collisions written by Jerome William Elbert and published by . This book was released on 1972 with total page 638 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Pion Production in Pion nucleon Collisions in the Chew Low Wick Formalism

Download or read book Pion Production in Pion nucleon Collisions in the Chew Low Wick Formalism written by Leonard Sidney Rodberg and published by . This book was released on 1956 with total page 70 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Pion  Kaon  Proton and Antiproton Production in Proton Proton Collisions

Download or read book Pion Kaon Proton and Antiproton Production in Proton Proton Collisions written by National Aeronautics and Space Administration (NASA) and published by Createspace Independent Publishing Platform. This book was released on 2018-05-22 with total page 50 pages. Available in PDF, EPUB and Kindle. Book excerpt: Inclusive pion, kaon, proton, and antiproton production from proton-proton collisions is studied at a variety of proton energies. Various available parameterizations of Lorentz-invariant differential cross sections as a function of transverse momentum and rapidity are compared with experimental data. The Badhwar and Alper parameterizations are moderately satisfactory for charged pion production. The Badhwar parameterization provides the best fit for charged kaon production. For proton production, the Alper parameterization is best, and for antiproton production the Carey parameterization works best. However, no parameterization is able to fully account for all the data. Norbury, John W. and Blattnig, Steve R. Langley Research Center ANTIPROTONS; KAONS; PROTON ENERGY; SCATTERING CROSS SECTIONS; PIONS; PARAMETERIZATION; TRANSVERSE MOMENTUM

Book Pion Production in Neutron proton Collisions in the Neighborhood of 1 6 Bev c

Download or read book Pion Production in Neutron proton Collisions in the Neighborhood of 1 6 Bev c written by James Evans Parker and published by . This book was released on 1962 with total page 280 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Pion Production in Neutron proton Collisions at Bevatron Energies

Download or read book Pion Production in Neutron proton Collisions at Bevatron Energies written by Fred Nels Holmquist and published by . This book was released on 1959 with total page 134 pages. Available in PDF, EPUB and Kindle. Book excerpt:

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: