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Saturday, July 25, 2020 | History

3 edition of Parameterizations of pion energy spectrum in nucleon-nucleon collisions found in the catalog.

Parameterizations of pion energy spectrum in nucleon-nucleon collisions

Parameterizations of pion energy spectrum in nucleon-nucleon collisions

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  • 30 Currently reading

Published by National Aeronautics and Space Administration, Langley Research Center, National Technical Information Service, distributor in Hampton, Va, Springfield, VA .
Written in English

    Subjects:
  • Nucleon-nucleon interactions.,
  • Pions.,
  • Radiation transport.,
  • Charged particles.,
  • Particle collisions.,
  • Nucleon-nucleon scattering.,
  • Atmospheric radiation.,
  • Galactic cosmic rays.

  • Edition Notes

    StatementFrancis A. Cucinotta and John W. Wilson, John W. Norbury.
    Series[NASA technical memorandum] -- NASA/TM-1998-208722., NASA technical memorandum -- 208722.
    ContributionsWilson, John W. 1940-, Norbury, John W., Langley Research Center.
    The Physical Object
    FormatMicroform
    Pagination1 v.
    ID Numbers
    Open LibraryOL15550565M

    Total cross section parameterizations for neutral and charged pion production in nucleon - nucleon collisions are compared to experimental data over the. Pion Total Cross Section in Nucleon - Nucleon Collisions J. Norbury NASA Technical Paper ( Pion and kaon lab frame differential cross sections for intermediate energy nucleus - nucleus collisions J. Norbury, S. Blattnig Cross Section Parameterizations for Pion and Nucleon Production from negative Pion - Proton Collisions.

    U.S. Department of Energy Office of Scientific and Technical Information Search terms: Advanced search options Advanced Search Options Advanced Search queries use a traditional Term Search. Parameterizations of pion energy spectrum in nucleon-nucleon collisions Cucinotta, Francis A., author. Hampton, Virginia: National Aeronautics and Space Administration, Langley Research Center, October

    3 function of transverse momentum. Results from inclusive neutral pion production may provide meaningful constraints on the gluon-to-pion fragmentation [2]. pT dependence of the ratio of 0 yield in pp to that in dAu is important for understanding how 0 yield scales with the number of nucleons participating in the collision. The nucleon-nucleon (NN) interaction plays a central role in nuclear physics (see, e.g., [1,2] and references therein). The standard procedure to constrain the interaction uses a partial wave analysis (PWA) of the proton-proton (pp) and neutron-proton (np) scattering data below the pion production.


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Parameterizations of pion energy spectrum in nucleon-nucleon collisions Download PDF EPUB FB2

Parameterizations of Pion Energy Spectrum in Nucleon-Nucleon Collisions Francis A. Cucinotta and John W. Wilson Langley Research Center, Hampton, Virginia John W.

Norbury University of Wisconsin, Milwaukee, Wisconsin National Aeronautics and Space Administration Langley Research Center Hampton, Virginia October Parameterizations of pion energy spectrum in nucleon-nucleon collisions (OCoLC) Microfiche version: Cucinotta, Francis A.

Parameterizations of pion energy spectrum in nucleon-nucleon collisions (OCoLC) Material Type: Document, Government publication, National government publication, Internet resource: Document Type.

Parameterizations of pion energy spectrum in nucleon-nucleon collisions (OCoLC) Online version: Cucinotta, Francis A. Parameterizations of pion energy spectrum in nucleon-nucleon collisions (OCoLC) Material Type: Government publication, National government publication: Document Type: Book: All Authors / Contributors.

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 are also. Parameterizations of the linear energy transfer spectrum for the CRaTER instrument during the LRO mission. angle, and multiplicity of the products from inelastic nucleon‐nucleus and pion‐nucleus collisions at higher energies (3–15 GeV) Linear Energy Transfer Parameterizations [35] Cited by: 5.

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. Abstract. Cross-sections for pion production in nucleon-nucleon collisions are calculated on the assumption that the production takes place into a few angular momentum stutes only, and that the matrix element for each particular transition is constant except for factors due to the final-state pion-nucleon and nucleon- nucleon : Mandelstam, S.

Pion production in nucleon-nucleon collisions at NNLO in chiral EFT A. Filin where h is the outgoing pion momentum in the units of pion mass. The differential cross section is expressed in terms of transition amplitude as: ds dW = 1 64p2 j~qpj j~p in e tot 2 jMj2; () where j~qpj=hmp is outgoing pion momentum, ~p in is incoming proton.

Low-energy pion-nucleon scattering W. Gibbs and Li Ai Department of Physics, New Mexico State University, Las Cruces, New Mexico W. Kaufmann Department of Physics and Astronomy, Arizona State University, Tempe, Arizona ~Received 10 April.

An analysis of low-energy charged pion-nucleon data from recentp6p experiments is. of these parameterizations are indicated by the dotted lines. cross section. The inelastic nucleon-nucleon cross section increases from σ nn ≈ 30 mb at CERN SPS energies (√ s = GeV) to σ nn ≈ 40 mb at the RHIC energy of √ s = GeV.

The neutral pion yields in central Pb+Pb collisions at √ s nn = GeV and in central Au+Au collisions at √ s. understanding of the nucleon-nucleon interaction. The focus is on the low-energy region (below pion production threshold), but a brief outlook towards higher energies is also given.

The items discussed include charge-dependence, the precise value of the ˇNN coupling constant, phase shift analysis and high-precision NN data and potentials. The Badhwar parameterization, which may be used for nucleon–nucleon and nucleon–nucleus collisions, is extended to nucleus–nucleus collisions by using a simple scaling factor.

Next, a new parameterization of the thermal model is introduced. The thermal and Badhwar models are then used to predict pion spectra in Section by: 3. energy pp. 0 cross sections in order to calculate the-ray spectrum from microquasars. This spectrum can be measured using gamma ray telescopes on satellites.

Pion production cross section parameterizations [9] have also been used recently in nuclear and particle physics applica-tions [18–21]. The nuclear modification factor R AA isCited by: 7.

Total cross section parameterizations for neutral and charged pion production in nucleon–nucleon collisions are compared to experimental data over the projectile momentum range from threshold to GeV. Both proton–proton and proton–neutron reactions are by: 2. We first present an historical summary of the developments of the theory of pion production in nucleon‐nucleon collisions, leading to the present time.

Then the recent progress in each of three promising approaches to this problem are reviewed in by: 2. The theoretical analysis for the threshold pion production has been performed by using the models of heavy-meson exchange and pion-rescattering including the effect of nucleon resonances.

The experimental data of the π − production support the relative sign between the s-wave and p-wave pion-production amplitudes which is given by these by: 5.

The peak of the cosmic ray spectrum occurs near the GeV region, which we refer to as intermediate energy. This is the region of interest for space radiation applications. The aim of the present work is to provide simple parameterizations of total pion production cross sections in nuclear collisions, which can be used as input.

The theoretical analysis for the threshold pion production has been performed by using the models of heavy-meson exchange and pion-rescattering including the effect of nucleon resonances.

The d-wave pion production amplitude is discussed about the angular distribution of π0 production. The spin correlation observables give information about the partial wave by: 5.

Total cross section parameterizations for neutral and charged pion production in nucleon - nucleon collisions are compared to experimental data over the projectile momentum range from threshold to GeV. Both proton - proton and proton - neutron reactions are considered. Overall excellent agreement between parameter-Author: John W.

Norbury. Parameterizations of pion energy spectrum in nucleon-nucleon collisions / by: Cucinotta, Francis A., et al. Published: () Compact stars the quest for new states of dense matter: proceedings of the KIAS-APCTP International Symposium on Astro-Hadron Physics, Seoul, Korea, November / Published: ().

Parameterizations of pion energy spectrum in nucleon-nucleon collisions Nasa Technical Memorandum. 1: Maung KM, Norbury JW, Kahana DE. Proportionally off-mass-shell equation for unequal mass systems Journal of Physics G: Nuclear and Particle Physics.

DOI: //22/3/ 1: Schneider JP, Norbury JW.A model calculation for pion production in nucleon-nucleon collisions is presented. Direct production, pion re-scattering and contributions from pair diagrams are taken into account. The amplitudes for the elementary processes are based on well established microscopic models of nucleon–nucleon and pion-nucleon : J.

Haidenbauer, V. Baru, C. Hanhart, J. Speth.Toy model for pion production in nucleon-nucleon collisions C. Hanhart,1 G. A. Miller,1 F. Myhrer,2 T. Sato,2,3 and U.

van Kolck4,5,6 1Department of Physics, University of Washington, Seattle, Washington 2Department of Physics and Astronomy, University of South Carolina, Columbia, South Carolina 3Department of Physics, Osaka University, ToyonakaOsaka, Japan.