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Delta Production In Nucleon Nucleon Scattering And Pion Production In Nucleus Nucleus Collisions
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Book Synopsis Delta Production in Nucleon-nucleon Scattering and Pion Production in Nucleus-nucleus Collisions by : Declan Persram
Download or read book Delta Production in Nucleon-nucleon Scattering and Pion Production in Nucleus-nucleus Collisions written by Declan Persram and published by . This book was released on 1996 with total page 124 pages. Available in PDF, EPUB and Kindle. Book excerpt: "We present a calculation of $ Delta$ production cross section in the one-boson-exchange model for the reaction $NN to N Delta.$ Our calculation is in quantitative agreement with a previous calculation by Huber and Aichelin (1). The effect of the $NN to N Delta$ anisotropic differential cross section on $ pi$ production in Au + Au collisions at a kinetic energy of $1{GeV over A}$ is studied. We find that there is no large effect on the final $ pi$ transverse momentum spectra." --
Book Synopsis Direct Nucleon-nucleon Collisions Inside the Nucleus According to the Impluse Approximation by : Thomas P. Clements
Download or read book Direct Nucleon-nucleon Collisions Inside the Nucleus According to the Impluse Approximation written by Thomas P. Clements and published by . This book was released on 1960 with total page 58 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Neutral Pion Production in Nucleus-nucleus Collisions at 158 and 200 GeV/nucleon by :
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 Synopsis Pion Production and Fragmentation of Nuclei in High Energy Nucleus-nucleus Collisions by : Anders Oskarsson
Download or read book Pion Production and Fragmentation of Nuclei in High Energy Nucleus-nucleus Collisions written by Anders Oskarsson and published by . This book was released on 1983 with total page 54 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis The DELTA (1236)-resonance in the nucleon-nucleon interaction by : Jouni A. Niskanen
Download or read book The DELTA (1236)-resonance in the nucleon-nucleon interaction written by Jouni A. Niskanen and published by . This book was released on 1977 with total page 29 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Pion Production in Nucleus--nucleus Collisions by :
Download or read book Pion Production in Nucleus--nucleus Collisions written by and published by . This book was released on 1975 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Hadron Nucleus Interactions written by and published by . This book was released on 1980 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The elastic and inelastic scattering of intermediate energy (less than or equal to 1 GeV) protons by nuclei is considered first. The discussion focuses on the determination of the proton-nucleus optical potential in terms of the elementary nucleon-nucleon scattering amplitudes and the properties of the target and residual nucleus. The result is a series of terms for the optical potential. Then the interaction of pions with nuclei for energies in the neighborhood of the .delta.-resonance is discussed. In this energy domain an incident pion will with high probability be absorbed by a nucleon to produce the .delta.-resonance and thus form a .delta.-particle hole state in the nucleus. Next, the subject of hypernuclei is taken up. The .lambda. hypernuclei and a recently observed .sigma. hypernuclei comprise situations in which the core nucleus can be probed by a baryon of roughly the same mass as a nucleon, with similar albeit not identical interactions with nucleons. But the .lambda. (or .sigma.) does not need to satisfy the Pauli exclusion principle with respect to the nucleons, and therefore can be in orbits forbidden to it if it were a nucleon. As the energy of the projectile increases, it becomes correspondingly more important to take relativistic effects into account. The importance of these effects is strikingly revealed by experiments involving the collision of ultrarelativistic hadrons, protons, pions, kaons (up to Fermilab energies) with nuclei. This phenomenon forms part of the final topic, which includes as well as the collision of relativistic heavy ion projectiles with nuclei. A nuclear Weiszaecker-Williams method developed for dealing with peripheral collisions is described. 32 figures, 10 tables. (RWR).
Book Synopsis Investigations of Pion Production in Proton-nucleus Collisions Around the Nucleon-nucleon Threshold by :
Download or read book Investigations of Pion Production in Proton-nucleus Collisions Around the Nucleon-nucleon Threshold written by and published by . This book was released on 1998 with total page 40 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Pion Production in Nucleus Nucleus Collisions at Intermediate Energies by : Peter Senger
Download or read book Pion Production in Nucleus Nucleus Collisions at Intermediate Energies written by Peter Senger and published by . This book was released on 1994 with total page 13 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Pion Production in Nucleus-nucleus Collisions by : Gary E. Farrell
Download or read book Pion Production in Nucleus-nucleus Collisions written by Gary E. Farrell and published by . This book was released on 1977 with total page 112 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Delta Excitation In Nuclei - Proceedings Of The 3rd Tamura Symposium On Riken International Workshop by : Hiroshi Toki
Download or read book Delta Excitation In Nuclei - Proceedings Of The 3rd Tamura Symposium On Riken International Workshop written by Hiroshi Toki and published by World Scientific. This book was released on 1994-03-29 with total page 354 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Theories of Pion Production in Nucleon-nucleon Collisions by : Betz, M
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 Synopsis Subthreshold Pion Production in the Reaction 139La + 139La --> [pi]± + X by : Jack Miller
Download or read book Subthreshold Pion Production in the Reaction 139La + 139La --> [pi]± + X written by Jack Miller and published by . This book was released on 1987 with total page 460 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Delta. 33 Resonance in Pion Nucleus Elastic, Single, and Double Charge Exchange Scattering by :
Download or read book Delta. 33 Resonance in Pion Nucleus Elastic, Single, and Double Charge Exchange Scattering written by and published by . This book was released on 1983 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The .delta.33 resonance is strongly excited in pion-nucleon scattering, but there is clearly only a limited amount of information that can be learned in scattering the pion from an isolated nucleon. One learns that there is a resonance of mass 1232 MeV, width 115 MeV, and, if one is willing to introduce a dynamical model, something about the off-shell extension of the amplitude. One stands to learn much more from pion-nucleus scattering because in this case the .delta.33 resonance has an opportunity to scatter from nucleons, and how this occurs is not well understood. What do we know about the .delta.-N interaction for pion-nucleus scattering. The isobar-hole model was invented to deal directly with the .delta.33-nucleus dynamics, and a phenomenological determination of the isobar shell-model potential was attempted. The unknown dynamics deltaU/sub .delta./ is contained in a central isoscalar spreading potential of strength W0 and a spin orbit potential deltaU0 = W0rho + spin-orbit. The real part of W0rho is measured relative to the nucleon-nucleus potential. From a more theoretical point of view, one would like to be able to calculate deltaU/sub .delta./, including its isospin dependence, from an underlying dynamical model which is formulated in terms of the basic effective meson-baryon couplings. Some salient properties of these couplings can be determined from models of quark-bag structure, which raises the exciting possibility of learning about these fundamental issues from pion scattering. Attempts at Los Alamos to build a theoretical framework to deal with these and other issues are described. (WHK).
Download or read book Energy Research Abstracts written by and published by . This book was released on 1994-06 with total page 544 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Nuclear Science Abstracts written by and published by . This book was released on 1976-03 with total page 938 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Subthreshold Pion Production and Statistical Multifragmentation in Nucleus-nucleus Collisions by : H. W. (Niels Bohr Institutet) Barz
Download or read book Subthreshold Pion Production and Statistical Multifragmentation in Nucleus-nucleus Collisions written by H. W. (Niels Bohr Institutet) Barz and published by . This book was released on 1987 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: