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Author : Blevis Ira
Publisher :
ISBN 13 :
Total Pages : 89 pages
Book Rating : 4.:/5 (778 download)
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:
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 2001 with total page 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[sup 32]S+ 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][sup 0] 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][sup 0] measurements cover a large p[sub T] range.
Author : Francis A. Cucinotta
Publisher :
ISBN 13 :
Total Pages : 30 pages
Book Rating : 4.:/5 (317 download)
Download or read book Parameterizations of Pion Energy Spectrum in Nucleon-Nucleon Collisions written by Francis A. Cucinotta and published by . This book was released on 1998 with total page 30 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :
Publisher :
ISBN 13 :
Total Pages : 5 pages
Book Rating : 4.:/5 (893 download)
Download or read book Transverse Momentum Distributions of Neutral Pions from Sup 16 O + Au Collisions at 200 GeV/nucleon written by and published by . This book was released on 1989 with total page 5 pages. Available in PDF, EPUB and Kindle. Book excerpt: One means of studying the properties of the compressed and highly excited reaction zone is the investigation of {sub pT} spectra of produced pions and their dependence on the centrality of the reaction. To distinguish different contributing processes and to provide a reliable basis for comparisons with p + p scattering, a large {sub pT} coverage is required. In particular, data at high {sub pT} values, where hard processes become important and may be calculated by perturbative QCD are of interest. The present study of [pi]° spectra concentrates on measurements of {sub pT} spectra up to 2.8 GeV/c and on selections of the data according to the centrality of the reaction. 8 refs., 4 figs.
Author : John W. Norbury
Publisher :
ISBN 13 :
Total Pages : 50 pages
Book Rating : 4.:/5 (317 download)
Download or read book Cross-Section Parameterizations for Pion and Nucleon Production From Negative Pion-Proton Collisions written by John W. Norbury and published by . This book was released on 2002 with total page 50 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Dmitri Vladimirovitch Kotchetkov
Publisher :
ISBN 13 :
Total Pages : 522 pages
Book Rating : 4.3/5 (121 download)
Download or read book Phi Meson Production in P+p Collisions at 200 GeV Measured by the PHENIX Experiment at the Relativistic Heavy Ion Collider written by Dmitri Vladimirovitch Kotchetkov and published by . This book was released on 2005 with total page 522 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Jennifer Lynn Klay
Publisher :
ISBN 13 :
Total Pages : 436 pages
Book Rating : 4.:/5 (62 download)
Download or read book Transverse Mass and Rapidity Spectra of Pions and Protons from AuAu Collisions at the Alternating Gradient Synchrotron written by Jennifer Lynn Klay and published by . This book was released on 2001 with total page 436 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Pi. ° Spectra and Correlations from 16O + Au Collisions at 200 A GeV. written by and published by . This book was released on 1988 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The production of neutral pions by the interaction of 200 A GeV proton and 16O projectiles with an Au target has been studied for 1.5 d"[eta] d"2.1. Transverse momentum spectra have been measured between 0.4 GeV/c and 2.8 GeV/c and their dependence on the centrality of the reaction has been investigated. The peripheral spectrum shows a marked change of slope with a hard component starting at about 1.8 GeV/c in close similarity to p + p data. Preliminary analyses of photon data yield an excess over known photon sources for central data which is absent for peripheral reactions. Correlations of 4 photons representing neutral pions have been studied in ultrarelativistic heavy ion collisions. Data were taken in the WA80 experiment at the CERN-SPS with a 200 A GeV oxygen beam. The .pi.° are detected via their decay photons with a high-granularity lead glass array. Special features of interferometry using neutral pions will be discussed. The extracted preliminary parameters for high p/sub T/ pions emitted near midrapidity in O + Au collisions lead to rather small effective source sizes. 23 refs., 8 figs.
Author : Stephen Alan Chessin
Publisher :
ISBN 13 :
Total Pages : 354 pages
Book Rating : 4.:/5 (29 download)
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:
Author :
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ISBN 13 :
Total Pages : 612 pages
Book Rating : 4.E/5 ( download)
Download or read book Nuclear Science Abstracts written by and published by . This book was released on 1976 with total page 612 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :
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ISBN 13 :
Total Pages : 1330 pages
Book Rating : 4.3/5 (243 download)
Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1971 with total page 1330 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :
Publisher :
ISBN 13 :
Total Pages : 782 pages
Book Rating : 4.3/5 (129 download)
Download or read book Energy Research Abstracts written by and published by . This book was released on 1995 with total page 782 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : National Aeronaut Administration (Nasa)
Publisher : Createspace Independent Publishing Platform
ISBN 13 : 9781722685447
Total Pages : 58 pages
Book Rating : 4.6/5 (854 download)
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...
Author : United States. Energy Research and Development Administration
Publisher :
ISBN 13 :
Total Pages : 756 pages
Book Rating : 4.3/5 (91 download)
Download or read book ERDA Energy Research Abstracts written by United States. Energy Research and Development Administration and published by . This book was released on 1976 with total page 756 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :
Publisher :
ISBN 13 :
Total Pages : 820 pages
Book Rating : 4.3/5 (91 download)
Download or read book Physics Briefs written by and published by . This book was released on 1992 with total page 820 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : United States. Energy Research and Development Administration. Technical Information Center
Publisher :
ISBN 13 :
Total Pages : 588 pages
Book Rating : 4.3/5 (129 download)
Download or read book ERDA Energy Research Abstracts written by United States. Energy Research and Development Administration. Technical Information Center and published by . This book was released on 1976 with total page 588 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Steve R. Blattnig
Publisher :
ISBN 13 :
Total Pages : 88 pages
Book Rating : 4.:/5 (317 download)
Download or read book Parameterized Cross Sections for Pion Production in Proton-Proton Collisions written by Steve R. Blattnig and published by . This book was released on 2000 with total page 88 pages. Available in PDF, EPUB and Kindle. Book excerpt:
