Antiproton Nucleon And Antiproton Nucleus Interactions

Author : F. Bradamante
Publisher : Springer Science & Business Media
ISBN 13 : 1461305950
Total Pages : 327 pages
Book Rating : 4.58/5 ( download)

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Download or read book Antiproton-Nucleon and Antiproton-Nucleus Interactions written by F. Bradamante and published by Springer Science & Business Media. This book was released on 2013-03-12 with total page 327 pages. Available in PDF, EPUB and Kindle. Book excerpt: The third course of the International School on Physics with Low Energy Antiprotons was held in Erice, Sicily at the Ettore Majorana Centre for Scientific Culture, from 10 to 18 June, 1988. The School is dedicated to physics accessible to experiments using low energy antiprotons, especially in view of operation of the LEAR facility at CERN with the upgraded antiproton source AAC (Antiproton Accumulator AA and Antiproton Collector ACOL). The first course in 1986 covered topics related to fundamental symmetries; the second course in 1987 focused on spectroscopy of light and heavy quarks. This book con tains the Proceedings of the third course, devoted to the experimental and theoretical aspects of the interaction of antinucleons with nucleons and nuclei. The Proceedings contain both the tutorial lectures and contributions presented by participants during the School. The papers are organized in several sections. The first section deals with the theoretical aspects of NN scattering and annihilation, and the underlying QCD. The experimental techniques and results concerning NN scattering are contained in Section II. Section III contains theoretical reviews and contributions on anti proton-nucleus scattering and bound states. Section IV is devoted to the experimental results on the antiproton nucleus systems and their phenomenological analysis. Finally, some possible developments of the antiproton machines are presented.

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ISBN 13 :
Total Pages : pages
Book Rating : 4.43/5 ( download)

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Download or read book Antiproton-nucleus Interactions written by and published by . This book was released on 1982 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The antiproton beams from LEAR are a means for uncovering a hopefully fertile source of physics in the interactions of antiparticles with nuclei. Bound or resonant states have been searched for in the anti N N system and perhaps one candidate found. Resonances in the anti N-A system may have an independent origin, unrelated to isolated states in the two-body system but nevertheless very revealing of the essential nature of the two-body forces. The use of antiproton projectiles to study conventional, and occasionally exotic nuclear structure warrants some attention because of the extreme peripherality of many anti p-induced reactions and the expected strong iso-spin selectivity for inelastic excitation of say giant resonances. The annihilation channels which generate strong absorption in the nuclear interior, localize direct reactions in the nuclear surface. In this fashion anti p's ressemble heavy-ion projectiles but possess the virtue of being a rather more elementary probe and it should be possible to calculate the average anti p-A interaction (optical potential) from something closer to first principles. Perhaps the most fundamental reason for using antinucleons is as carriers, into the target, of antiquarks. It is not at all clear that the sea quarks in a hadron, i.e. in the form of quark-antiquark pairs, exist on an equal footing with valence quarks. The production of cc states (and even of s anti s) appears highly suppressed in nucleon-nucleon collisions. This suppression must be taken into account in establishing the relative merits of pp or p anti p colliders in producing say the W-meson. By introducing antiquarks directly via anti N N and anti N-A one should surely obtain more definite information about q anti q interactions with LEAR, at the low momenta presumably crucial for hadron structure. (WHK).

Author : Donald Verne Keller
Publisher :
ISBN 13 :
Total Pages : 168 pages
Book Rating : 4.84/5 ( download)

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Download or read book Nuclear Interactions of Antiprotons written by Donald Verne Keller and published by . This book was released on 1957 with total page 168 pages. Available in PDF, EPUB and Kindle. Book excerpt:

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ISBN 13 :
Total Pages : 4 pages
Book Rating : 4.94/5 ( download)

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Download or read book Measurement of Interaction Between Antiprotons written by and published by . This book was released on 2015 with total page 4 pages. Available in PDF, EPUB and Kindle. Book excerpt: In this paper, one of the primary goals of nuclear physics is to understand the force between nucleons, which is a necessary step for understanding the structure of nuclei and how nuclei interact with each other. Rutherford discovered the atomic nucleus in 1911, and the large body of knowledge about the nuclear force that has since been acquired was derived from studies made on nucleons or nuclei. Although antinuclei up to antihelium-4 have been discovered and their masses measured, little is known directly about the nuclear force between antinucleons. Here, we study antiproton pair correlations among data collected by the STAR experiment at the Relativistic Heavy Ion Collider (RHIC), where gold ions are collided with a centre-of-mass energy of 200 gigaelectronvolts per nucleon pair. Antiprotons are abundantly produced in such collisions, thus making it feasible to study details of the antiproton-antiproton interaction. By applying a technique similar to Hanbury Brown and Twiss intensity interferometry, we show that the force between two antiprotons is attractive. In addition, we report two key parameters that characterize the corresponding strong interaction: the scattering length and the effective range of the interaction. Our measured parameters are consistent within errors with the corresponding values for proton-proton interactions. Our results provide direct information on the interaction between two antiprotons, one of the simplest systems of antinucleons, and so are fundamental to understanding the structure of more-complex antinuclei and their properties.

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ISBN 13 :
Total Pages : pages
Book Rating : 4.50/5 ( download)

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Download or read book Antiproton-nucleus Interaction written by and published by . This book was released on 1984 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Several facets of antinucleon-nucleus interactions are explored. The topics treated are: coherent interactions, production of unusual states and particles in the nuclear medium, and the creation of extreme states of matter by antimatter annihilation. It is found that temperatures of the magnitude necessary to achieve the predicted quark-gluon phase transition are obtained. 20 references.

Author : R. Klapisch
Publisher : Springer
ISBN 13 : 9781461595816
Total Pages : 244 pages
Book Rating : 4.19/5 ( download)

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Download or read book Medium-Energy Antiprotons and the Quark—Gluon Structure of Hadrons written by R. Klapisch and published by Springer. This book was released on 2012-01-31 with total page 244 pages. Available in PDF, EPUB and Kindle. Book excerpt: The fourth course of the International School on Physics with Low Energy Antiprotons was held in Erice, Sicily, at the Ettore Majorana Centre for Scientific Culture from 25 to 31 January, 1990. The previous courses covered topics related to fundamental symmetries, light and heavy quark spectroscopy, and antiproton-nucleus interactions. The purpose of this school is to review theoretical and experimental aspects of low energy antiproton physics concerning the quark-gluon structure of hadrons and the dynamics of the. antiproton-nucleon interaction. Another important objective is the discussion of future directions of research with low-and medium-energy antiprotons in the context of future medium energy facilities at CERN and elsewhere. These proceedings contain both the tutorial lectures and the various contributions presented during the school by the participants. The proceedings have been organised in three sections. The first section is devoted to the theoretical lectures and contributions. The selection of the various subjects wants to emphasize the correlation between antiproton-nucleon physics and the underlying description in terms of quarks and gluons. The second section contains an overview about 35 years of experiments with antiprotons. It gives an introduction to the particle physics aspects of the field by outlining the historical development of experiment and theory, and by describing the motivation and the results of three recent LEAR experiments in more detail. The third section contains most of the contributions of the participants describing in more detail certain aspects of current or planned experiments at LEAR.

Author : Gabrijel Kernel
Publisher : World Scientific
ISBN 13 : 9814549355
Total Pages : 665 pages
Book Rating : 4.56/5 ( download)

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Download or read book Low Energy Antiproton Physics - Proceedings Of The Third Biennial Confr Physics written by Gabrijel Kernel and published by World Scientific. This book was released on 1995-09-15 with total page 665 pages. Available in PDF, EPUB and Kindle. Book excerpt: These proceedings cover the latest results in low energy antiproton physics. The volume consists of invited talks and invited contributions on the following subjects: nucleon-antinucleon interactions, antiprotons in astrophysics, meson spectroscopy, strangeness and charm production, antinucleon-nucleus interactions, fundamental symmetries, antiproton facilities, atomic physics with antiprotons, antihydrogen-facilities and experiments.

Author : Bruce Cork
Publisher :
ISBN 13 :
Total Pages : 54 pages
Book Rating : 4.56/5 ( download)

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Download or read book Interactions of Antiprotons in Hydrogen, Beryllium, and Carbon written by Bruce Cork and published by . This book was released on 1960 with total page 54 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Author : Emilio Segrè
Publisher :
ISBN 13 :
Total Pages : 20 pages
Book Rating : 4.19/5 ( download)

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Download or read book Nuclear Properties of Antinucleons written by Emilio Segrè and published by . This book was released on 1959 with total page 20 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Author : Lewis Edgar Agnew
Publisher :
ISBN 13 :
Total Pages : 206 pages
Book Rating : 4.55/5 ( download)

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Download or read book Antiproton Interactions in Hydrogen and Carbon Below 200 Mev written by Lewis Edgar Agnew and published by . This book was released on 1960 with total page 206 pages. Available in PDF, EPUB and Kindle. Book excerpt: