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Search For Charmed Particle Production In Proton Proton Collisions At The Cern Isr
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Book Synopsis Search for Charmed Particle Production in Proton-proton Collisions at the CERN-ISR. [53 GeV (c. M.)]. by :
Download or read book Search for Charmed Particle Production in Proton-proton Collisions at the CERN-ISR. [53 GeV (c. M.)]. written by and published by . This book was released on 1977 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Experimental results on a search for charmed particle production in proton-proton collisions at the center of mass energy (.sqrt.s) of 53 GeV are presented. Evidence of cidences, a signature of charmed particle production, was sought. The inclusive e/.pi. ratio was measured with a magnetic spectrometer located at 32° from Beam 1 of Intersection I6 of the CERN Intersecting Storage Rings (ISR). The e/.pi. ratio from direct (unknown) sources was found to rise from 1.06 x 10−4 at p/sub perpendicular to/ = 1.5 GeV/c to 5.53 x 10−4 at p/sub perpendicular to/ = 0.25 GeV/c. One possible source for this signal is the semi-leptonic decay of charmed particles (e.g., D .-->. K° e.nu.). If so, then electron-strange particle (e.g., .lambda.°, K°) coincidences are expected. The charged decay products of .lambda.° and K° were detected in a multiparticle spectrometer surrounding Beam 1 downstream of the intersection. To determine if there is an electron-strange particle correlation, the number of .lambda.°'s (K°'s) in coincidence with an electron in the 32° spectrometer was compared with the number of .lambda.'s (K°'s) in coincidence with a hadron in the same kinematic range. No evidence for an enhanced production of strange particles with electrons relative to hadrons was found. However, given the acceptance of the apparatus, the absence of a signal is consistent with current models of charmed particle production and decay. 40 references, 51 figures, 20 tables.
Book Synopsis Search for Charmed Particle Production in Proton-proton Collisions at the CERN-ISR by : William Leigh Marsh
Download or read book Search for Charmed Particle Production in Proton-proton Collisions at the CERN-ISR written by William Leigh Marsh and published by . This book was released on 1977 with total page 326 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis A Search for Charmed Meson Production in Proton-proton Collisions at the CERN-ISR by : Gordon John VanDalen
Download or read book A Search for Charmed Meson Production in Proton-proton Collisions at the CERN-ISR written by Gordon John VanDalen and published by . This book was released on 1978 with total page 436 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Scientific and Technical Aerospace Reports by :
Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1983 with total page 1368 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis A Search for Charmed Particles in Neutrino Induced Reactions and a Study of Light-ion Collisions at Very High Energy by : Göran Claesson
Download or read book A Search for Charmed Particles in Neutrino Induced Reactions and a Study of Light-ion Collisions at Very High Energy written by Göran Claesson and published by . This book was released on 1983 with total page 38 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Energy Research Abstracts written by and published by . This book was released on 1987 with total page 1294 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 with total page 658 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Characteristics of Charm Particles Produced by 800 GeV P-p Collisions by : Ai Gia Nguyen
Download or read book Characteristics of Charm Particles Produced by 800 GeV P-p Collisions written by Ai Gia Nguyen and published by . This book was released on 1988 with total page 252 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis A Proposal to Search for Charmed Particles Originating from the Interactions of 400 GeV by :
Download or read book A Proposal to Search for Charmed Particles Originating from the Interactions of 400 GeV written by and published by . This book was released on 1974 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: There has been much recent discussion of the possibility of the existence of 'charmed' particles, hadrons which possess non-zero values of 'charm', a further additive quantum number. These particles may be generated either in the three triplet model of Han and Nambu or by the postulate of a fourth, charm-bearing quark. On the assumption that charm, like strangeness, is conserved in strong and electromagnetic interactions (the opposite assumption would necessitate charmed particles coupling strongly to ordinary hadrons and the existence of yet undiscovered states, e.g. Z*s) but not conserved in weak interactions one might expect their production either singly in neutrino interactions or in pairs in associated production in high energy hadron collisions, to be followed by their subsequent, relatively slow, decay into 'uncharmed' particles. Various estimates as to mass, lifetime, production cross-sections and decay modes have been made for these particles. However their failure to appear as di-lepton events among the neutrino interactions of the Brookhaven A.G.S. and CERN P.S. experiments might suggest that their masses are in excess of 2 GeV/c2 the other hand, such particles would have been expected to have been observed directly in bubble chamber studies at FNAL had their lifetimes been greater than 10−11s as suggested by some authors. This proposal, which may be thought of as complementary to that of Burhop et al, is for a straightforward exposure of a stack of emulsions to a 400 GeV/c proton beam to look for evidence of the pair production of charmed particles. The spatial resolution of the emulsion technique is about one micron with the consequence that the decays of particles of mean lives in the range 10−11 to 10−14 s should be readily observable.
Download or read book INIS Atomindeks written by and published by . This book was released on 1986 with total page 1390 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Hadron '91 - Proceedings Of The International Conference by : S Oneda
Download or read book Hadron '91 - Proceedings Of The International Conference written by S Oneda and published by World Scientific. This book was released on 1992-05-07 with total page 946 pages. Available in PDF, EPUB and Kindle. Book excerpt: In this volume, the structure and reactions of radioactive nuclei are described. The relevance of halo nuclei to nuclear astrophysics is stressed in different contributions. Other topics included are: three-body aspects of light neutron-rich nuclei, elastic scattering, charge exchange and Coulomb excitation, fragment moment distribution, mass at half-life measurement and electromagnetism-induced fission.
Download or read book ERDA Energy Research Abstracts written by and published by . This book was released on 1977 with total page 696 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)
Book Synopsis ERDA Energy Research Abstracts by : United States. Energy Research and Development Administration. Technical Information Center
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:
Download or read book High Energy Physics Index written by and published by . This book was released on 1990 with total page 716 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Energy Research Abstracts written by and published by . This book was released on 1985 with total page 900 pages. Available in PDF, EPUB and Kindle. Book excerpt: Semiannual, with semiannual and annual indexes. References to all scientific and technical literature coming from DOE, its laboratories, energy centers, and contractors. Includes all works deriving from DOE, other related government-sponsored information, and foreign nonnuclear information. Arranged under 39 categories, e.g., Biomedical sciences, basic studies; Biomedical sciences, applied studies; Health and safety; and Fusion energy. Entry gives bibliographical information and abstract. Corporate, author, subject, report number indexes.
Book Synopsis Annual Report of the European Organization for Nuclear Research by : European Organization for Nuclear Research
Download or read book Annual Report of the European Organization for Nuclear Research written by European Organization for Nuclear Research and published by . This book was released on 1991 with total page 480 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis ERDA Research Abstracts by : United States. Energy Research and Development Administration
Download or read book ERDA Research Abstracts written by United States. Energy Research and Development Administration and published by . This book was released on 1976 with total page 1040 pages. Available in PDF, EPUB and Kindle. Book excerpt:
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