Experimental Studies of Pion-nucleus and Nucleon-nucleus Interactions at Intermediate Energies. Progress Report, April 1, 1991--March 31, 1994

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ISBN 13 :
Total Pages : 69 pages
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Book Synopsis Experimental Studies of Pion-nucleus and Nucleon-nucleus Interactions at Intermediate Energies. Progress Report, April 1, 1991--March 31, 1994 by :

Download or read book Experimental Studies of Pion-nucleus and Nucleon-nucleus Interactions at Intermediate Energies. Progress Report, April 1, 1991--March 31, 1994 written by and published by . This book was released on 1993 with total page 69 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report summarizes the work on experimental research in intermediate energy nuclear physics carried out at New Mexico State University in 1991-94 under a grant from the U.S. Department of Energy. Most of these studies involved investigations of various pion-nucleus interactions and nucleon-nucleus charge-exchange reactions. The work was carried out with the LAMPF accelerator at the Los Alamos National Laboratory and the cyclotrons at the Paul Scherrer Institute (PSI) near Zurich, Switzerland, at Indiana University (IUCF), and at TRIUMF in Vancouver, Canada, as collaborative efforts among several laboratories and universities. We have also worked on plans and preparations for new experiments involving studies of the quark structure of nucleons and nuclei, which would be carried out at Fermilab (FNAL), near Chicago, and at the HERA facility at the DESY laboratory in Hamburg, Germany. The NMSU personnel included two faculty members, five postdoctoral research associates, nine graduate students, and one undergraduate student.

Experimental Studies of the Quark-gluon Structure of Nucleons and Nuclei and of Pion- and Proton-nucleus Interactions. Progress Report, April 1, 1994--March 31, 1997

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Total Pages : 87 pages
Book Rating : 4.:/5 (16 download)

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Book Synopsis Experimental Studies of the Quark-gluon Structure of Nucleons and Nuclei and of Pion- and Proton-nucleus Interactions. Progress Report, April 1, 1994--March 31, 1997 by :

Download or read book Experimental Studies of the Quark-gluon Structure of Nucleons and Nuclei and of Pion- and Proton-nucleus Interactions. Progress Report, April 1, 1994--March 31, 1997 written by and published by . This book was released on 1996 with total page 87 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report summarizes the work on experimental research in intermediate energy nuclear physics carried out by New Mexico State University from April 1, 1994, through March 31, 1996 under a grant from the US Department of Energy. During this period we began phasing out our programs of study of pion-nucleus and pion-nucleon interaction and of nucleon-nucleus charge-exchange reactions, which have been our major focus of the past two or three years. At the same time we continued moving in a new direction of research on studies of the internal structure of nucleons and nuclei in terms of quarks and gluons. The pion and nucleon work has been aimed at improving our understanding of the nature of pion and proton interactions in the nuclear medium and of various aspects of nuclear structure. The studies of the quark-gluon structure of nucleons are aimed at clarifying such problems as the nature of the quark sea and the relation of the nucleon spin to the spins of the quarks within the nucleon, questions which are of a very fundamental nature.

Experimental Studies of Pion-nucleus Interactions at Intermediate Energies. Annual Progress Report

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ISBN 13 :
Total Pages : 34 pages
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Download or read book Experimental Studies of Pion-nucleus Interactions at Intermediate Energies. Annual Progress Report written by and published by . This book was released on 1991 with total page 34 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report summarizes the work on experimental research in intermediate energy nuclear physics carried out at New Mexico State University in 1991 under a great from the US Department of Energy. Most of these studies have involved investigations of various pion-nucleus interactions. The work has been carried out both with the LAMPF accelerator at the Los Alamos National Laboratory and with the cyclotron at the Paul Scherrer Institute (PSI) near Zurich, Switzerland. Part of the experimental work involves measurements of new data on double-charge-exchange scattering, using facilities at LAMPF which we helped modify, and on pion absorption, using a new detector system at PSI that covers nearly the full solid-angle region which we helped construct. Other work involved preparation for future experiments using polarized nuclear targets and a new high-resolution spectrometer system for detecting [pi]° mesons. We also presented several proposals for works to be done in future years, involving studies related to pi-mesonic atoms, fundamental pion-nucleon interactions, studies of the difference between charged and neutral pion interactions with the nucleon, studies of the isospin structure of pion-nucleus interactions, and pion scattering from polarized 3He targets. This work is aimed at improving our understanding of the pion-nucleon interaction, of the pion-nucleus interaction mechanism, and of nuclear structure.

Investigation of Pion-nucleus Interactions. Progress Report, April 1, 1991--March 31, 1992

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ISBN 13 :
Total Pages : 31 pages
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Book Synopsis Investigation of Pion-nucleus Interactions. Progress Report, April 1, 1991--March 31, 1992 by :

Download or read book Investigation of Pion-nucleus Interactions. Progress Report, April 1, 1991--March 31, 1992 written by and published by . This book was released on 1992 with total page 31 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report summarizes the work carried out by personnel from the University of Texas at Austin at the Los Alamos Clinton P. Anderson Meson Physics Facility (LAMPF). The research activities involved experiments done with the Energetic Pion Channel and Spectrometer (EPICS), the Low Energy Pion Channel (LEP), the Pion and Particle Physics Channel (P3), the High Resolution Spectrometer (HRS), and planning a new experimental program associated with the new high-resolution Neutral Meson Spectrometer (NMS) at LAMPF. A brief overview of work supported by this grant is given followed by an account of the study of the double giant resonances in pion double charge exchange on 51V, 115In, and 197Au. This report contains a list of published papers and preprints, abstracts, and invited talks. These papers summarize experiments involving participants supported by this grant and indicate the work accomplished by these participants in this program of medium energy nuclear physics research. Lists of the most recent proposals on which we have participation at LAMPF, proposals which have been approved this past year to run as experiments, personnel who have participated in this research program are included. The research cited in this report is, in many cases, the collaborative effort of many groups associated with research at LAMPF.

Experimental Studies of Pion-nucleus Interactions at Intermediate Energies

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ISBN 13 :
Total Pages : 34 pages
Book Rating : 4.:/5 (16 download)

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Book Synopsis Experimental Studies of Pion-nucleus Interactions at Intermediate Energies by :

Download or read book Experimental Studies of Pion-nucleus Interactions at Intermediate Energies written by and published by . This book was released on 1991 with total page 34 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report summarizes the work on experimental research in intermediate energy nuclear physics carried out at New Mexico State University in 1991 under a great from the US Department of Energy. Most of these studies have involved investigations of various pion-nucleus interactions. The work has been carried out both with the LAMPF accelerator at the Los Alamos National Laboratory and with the cyclotron at the Paul Scherrer Institute (PSI) near Zurich, Switzerland. Part of the experimental work involves measurements of new data on double-charge-exchange scattering, using facilities at LAMPF which we helped modify, and on pion absorption, using a new detector system at PSI that covers nearly the full solid-angle region which we helped construct. Other work involved preparation for future experiments using polarized nuclear targets and a new high-resolution spectrometer system for detecting?° mesons. We also presented several proposals for works to be done in future years, involving studies related to pi-mesonic atoms, fundamental pion-nucleon interactions, studies of the difference between charged and neutral pion interactions with the nucleon, studies of the isospin structure of pion-nucleus interactions, and pion scattering from polarized 3He targets. This work is aimed at improving our understanding of the pion-nucleon interaction, of the pion-nucleus interaction mechanism, and of nuclear structure.

Experimental Studies of Pion-nucleus Interactions at Intermediate Energies. [New Mexico State Univ., Las Cruces, New Mexico].

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Total Pages : 40 pages
Book Rating : 4.:/5 (727 download)

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Book Synopsis Experimental Studies of Pion-nucleus Interactions at Intermediate Energies. [New Mexico State Univ., Las Cruces, New Mexico]. by :

Download or read book Experimental Studies of Pion-nucleus Interactions at Intermediate Energies. [New Mexico State Univ., Las Cruces, New Mexico]. written by and published by . This book was released on 1992 with total page 40 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report summarizes investigations of various pion-nucleus interactions and nucleon-nucleus charge-exchange reactions. The work was carried out with the LAMPF accelerator at the Los Alamos National Laboratory and the cyclotrons at the Paul Scherrer Institute (PSI) near Zurich, Switzerland, and at Indiana University (IUCF), as a collaborative effort among several laboratories and universities. The experimental activity at LAMPF involved measurements of new data on pion double-charge-exchange scattering, some initial work on a new Neutral Meson Spectrometer system, a search for deeply-bound pionic atoms, measurements of elastic scattering, and studies of the (n, p) reaction on various nuclei. At PSI measurements of pion quasielastic scattering were carried out, with detection of the recoil proton. Work on the analysis of data from a previous experiment at PSI on pion absorption in nuclei was continued. This experiment involved using a detector system that covered nearly the full solid angle.

Experimental Studies of Nucleon-nucleon and Pion-nucleus Interactions at Intermediate Energies

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Total Pages : 54 pages
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Book Synopsis Experimental Studies of Nucleon-nucleon and Pion-nucleus Interactions at Intermediate Energies by :

Download or read book Experimental Studies of Nucleon-nucleon and Pion-nucleus Interactions at Intermediate Energies written by and published by . This book was released on 1990 with total page 54 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report summarizes the work on experimental research in intermediate energy nuclear and particle physics carried out by New Mexico State University in 1988--91. Most of these studies have involved investigations of neutron-proton and pion-nucleus interactions. The neutron-proton research is part of a program of studies of interactions between polarized nucleons that we have been involved with for more than ten years. Its purpose has been to help complete the determination of the full set of ten complex nucleon-nucleon amplitudes at energies up to 800 MeV, as well as to continue investigating the possibility of the existence of dibaryon resonances. The give complex isospin-one amplitudes have been fairly well determined, partly as a result of this work. Our work in this period has involved measurements and analysis of data on elastic scattering and total cross sections for polarized neutrons on polarized protons. The pion-nucleus research continues our studies of this interaction in regions where it has not been well explored. One set of experiments includes studies of pion elastic and double-charge-exchange scattering at energies between 300 and 550 MeV, where our data is unique. Another involves elastic and single-charge-exchange scattering of pions from polarized nuclear targets, a new field of research which will give the first extensive set of information on spin-dependent pion-nucleus amplitudes. Still another involves the first set of detailed studies of the kinematic correlations among particles emitted following pion absorption in nuclei.

Investigation of Pion-nucleus Interactions. Progress Report, April 1, 1990--March 31, 1991

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ISBN 13 :
Total Pages : 34 pages
Book Rating : 4.:/5 (873 download)

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Book Synopsis Investigation of Pion-nucleus Interactions. Progress Report, April 1, 1990--March 31, 1991 by :

Download or read book Investigation of Pion-nucleus Interactions. Progress Report, April 1, 1990--March 31, 1991 written by and published by . This book was released on 1991 with total page 34 pages. Available in PDF, EPUB and Kindle. Book excerpt: The double isovector giant state has been observed in the ([pi]−, [pi]) [Delta]T{sub z} = +2 double-charge-exchange reaction on 13C, 27Al, 4°Ca, 56Fe, 59Co, and 93Nb. The resonances observed in the ([pi]−, [pi]+) reaction are closely related via Coulomb displacement energy and isospin symmetry to the resonances measured in the inverse ([pi]+, [pi]−) reaction on the same nuclei. The new observations provide a direct determination of the upper isospin component of the double giant dipole state, which is generally very weak in the ([pi]+, [pi]−) reaction. The comparison between the double dipole in the two double-charge-exchange modes gives valuable information on the isospin splitting and the Pauli-blocking effects for isotensor transitions.

Energy Research Abstracts

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ISBN 13 :
Total Pages : 484 pages
Book Rating : 4.0/5 ( download)

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Book Synopsis Energy Research Abstracts by :

Download or read book Energy Research Abstracts written by and published by . This book was released on 1994-02 with total page 484 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Scientific and Technical Aerospace Reports

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ISBN 13 :
Total Pages : 892 pages
Book Rating : 4.:/5 (31 download)

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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 1994 with total page 892 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Electron and Pion Interactions with Nuclei at Intermediate Energies

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Publisher : Routledge
ISBN 13 :
Total Pages : 732 pages
Book Rating : 4.:/5 (34 download)

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Book Synopsis Electron and Pion Interactions with Nuclei at Intermediate Energies by : William Bertozzi

Download or read book Electron and Pion Interactions with Nuclei at Intermediate Energies written by William Bertozzi and published by Routledge. This book was released on 1980 with total page 732 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Government Reports Annual Index

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ISBN 13 :
Total Pages : 1190 pages
Book Rating : 4.3/5 (91 download)

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Book Synopsis Government Reports Annual Index by :

Download or read book Government Reports Annual Index written by and published by . This book was released on 1994 with total page 1190 pages. Available in PDF, EPUB and Kindle. Book excerpt: Sections 1-2. Keyword Index.--Section 3. Personal author index.--Section 4. Corporate author index.-- Section 5. Contract/grant number index, NTIS order/report number index 1-E.--Section 6. NTIS order/report number index F-Z.

Experiments on the Nuclear Interactions of Pion and Electrons. Final Progress Report

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Total Pages : 39 pages
Book Rating : 4.:/5 (684 download)

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Book Synopsis Experiments on the Nuclear Interactions of Pion and Electrons. Final Progress Report by :

Download or read book Experiments on the Nuclear Interactions of Pion and Electrons. Final Progress Report written by and published by . This book was released on 1998 with total page 39 pages. Available in PDF, EPUB and Kindle. Book excerpt: The work in this report is grouped into four categories. (1) The experiments in pion nucleus physics were primarily studies of pion absorption and scattering in light nuclei, carried out at the Los Alamos Meson Physics Facility (LAMPF). (2) The experiments on fundamental particle properties were carried out at LAMPF and at the Paul Scherrer Institute (PSI) in Switzerland, the pion-beta decay experiment is still under construction and will begin taking data in 1999. (3) The experiments in electro-nuclear physics were performed at the Stanford Linear Electron Accelerator (SLAC), at the Saclay Laboratory in France, at the LEGS facility at the Brookhaven National Laboratory, and at the Continuous Electron Beam Accelerator Facility (CEBAF) at the Jefferson Laboratory. These experiments relate mainly to the question of the role of longitudinal and transverse strength for inelastic scattering from nuclei, measurements of fundamental nuclear properties with tagged polarized photons, and to the quark structure of the nucleon and its excited states. (4) Experiments on absorption of antiprotons in heavy nuclei, were carried out by K. Ziock primarily while on a sabbatical leave in Munich, Germany.

Pion-nucleus Interactions and the STAR Experiment at RHIC. Progress Report, 1990--1993

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Total Pages : 75 pages
Book Rating : 4.:/5 (682 download)

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Book Synopsis Pion-nucleus Interactions and the STAR Experiment at RHIC. Progress Report, 1990--1993 by :

Download or read book Pion-nucleus Interactions and the STAR Experiment at RHIC. Progress Report, 1990--1993 written by and published by . This book was released on 1993 with total page 75 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report summarizes the work carried out by personnel from the University of Texas at Austin at the Los Alamos Clinton P. Anderson Meson Physics Facility (LAMPF) during the calendar years 1990--1993 and on the STAR experiment at RHIC under grant DE-FGO5-87ER40343 between the University of Texas at Austin and the United States Department of Energy. A brief overview of work supported by this grant is given in Section 2. An account of the study of the double giant resonances in pion double charge exchange forms Section 3. This report contains a list of published papers and preprints in Section 6, invited talks in Section 7, and abstracts in Section 8. These papers summarize experiments involving participants supported by this grant and indicate the work accomplished by these participants in this program of medium energy nuclear physics research. Section 9 contains a list of personnel who have participated in this research program.

Pion- and Proton-nucleus Interactions at Intermediate Energy

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ISBN 13 :
Total Pages : 83 pages
Book Rating : 4.:/5 (727 download)

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Download or read book Pion- and Proton-nucleus Interactions at Intermediate Energy written by and published by . This book was released on 1992 with total page 83 pages. Available in PDF, EPUB and Kindle. Book excerpt: We report on scattering and reaction experiments on light nuclei using the [pi]-meson and proton beams from the Los Alamos Meson Physics Facility (LAMPF) and the Indiana University Cyclotron Facility (IUCF). Differential cross sections, cross section asymmetries, and angular correlation functions have been measured in order to test models of the reaction mechanism and of nuclear structure. At LAMPF we have measured asymmetries for pion scattering from polarized [sup 13]C which are uniquely sensitive to the isoscalar spin density. In order to determine details of the reaction mechanism, we have obtained approval for a scattering experiment on polarized [sup 3]He for which the nuclear structure is very well known. We have completed data taking for two studies of elastic scattering of [pi][sup +] from [sup 6]Li and [sup l3]C. The detailed differential cross sections from these experiments will be used to constrain theoretical analyses of previous polarization experiments done at the Pierre-Scherrer-Institute (PSI) and at LAMPF. We have analyzed [pi]-triton coincidence events from the [sup 4]He([pi], [pi][prime] t)p reaction and have found evidence for direct triton knockout from [sup 4]He. We have extended these angular correlation measurements to higher energies and to [sup 2]H and [sup 3]He targets. At IUCF we have performed the first [sup 4]He(p, n) experiment at intermediate energies, T[sub p] = 100, 147, and 200 MeV, in a search for previously reported narrow states in [sup 4]Li of widths of [approx] 1 MeV. Within the statistics of the data we have found no evidence for such narrow structures.

Inelastic Interactions of Intermediate Energy Positive Pions with Complex Nuclei

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ISBN 13 :
Total Pages : 382 pages
Book Rating : 4.:/5 (871 download)

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Book Synopsis Inelastic Interactions of Intermediate Energy Positive Pions with Complex Nuclei by : Subhas Chandra Chakravartty

Download or read book Inelastic Interactions of Intermediate Energy Positive Pions with Complex Nuclei written by Subhas Chandra Chakravartty and published by . This book was released on 1970 with total page 382 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Government Reports Announcements & Index

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ISBN 13 :
Total Pages : 594 pages
Book Rating : 4.:/5 (3 download)

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Book Synopsis Government Reports Announcements & Index by :

Download or read book Government Reports Announcements & Index written by and published by . This book was released on 1995 with total page 594 pages. Available in PDF, EPUB and Kindle. Book excerpt: